Research Interest

-  Artificial electromagnetic structures of negative refractive index for superlens or invisible cloaking 

-  Terahertz Imaging 

-  Wireless communication using microwave orbital angular momentum

BIOGRAPHY

-

Education

2013 ~  Professor at Dept. of Electronics Eng., Ewha Womans Univ., Korea

2008 ~ 2012  Associate Professor at Dept. of Electronics Eng., Ewha Womans Univ., Korea

2004 ~ 2007  Assistant Professor at Dept. of Information Electronics Eng., Ewha Womans Univ., Korea

2002 ~ 2003  Assistant Professor at the School of Electrical Eng., Univ. of Ulsan, Korea

2001 ~ 2002  Research Professor on High-Speed Mixed-Mode Interface, KAIST, Korea

2000 ~ 2001  Senior Researcher on RF Communication Systems, SaTReC, Korea

1998 ~ 2000  Research Staff in High-Speed Optical Interconnects, Imperial College, UK

BIOGRAPHY

-

Research Interest

-  SOC architecture and implementation for multimedia and 3D graphics systems using MDL(Merged DRAM Logic) technology 

-  Embedded operating systems

Education

1999. 7 ~ 2001. 6  Research on real-time 3D graphics hardware

1998.12 ~ 2001. 1  Development of Application Specific Embedded Memory Logic Design Technology

1997.1 ~ 1998.12  Development of a VDR(Video Disk Recorder) for HDTV

1996.1 ~ 1998.12  System On Silicon Project
 

Career

Patents

BIOGRAPHY

- International Journal Papers

A Reconfigurable Multilevel Parallel Texture Cache Memory with 75 GB/s Parallel Cache Replacement Bandwidth

Se-Jeong Park, Jeong-Su Kim, Ramchan Woo, Se-Joong Lee, Kang-Min Lee, Tae-Hum Yang, Jin-Yong Jung and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits, pages 612-623, Vol. 37. No. 5, May 2002

Hidden Double Data Transfer Scheme for MDL Design [Merged DRAM Logic]

Se-Jeong Park and Hoi-Jun Yoo

IEEE Electronics Letters, Vol. 37, No. 11, pp. 676-677, May 2001

- International Conference Papers

A Reconfigurable Multilevel Parallel Graphics Cache Memory with 75 GB/s Parallel Cache Replacement Bandwidth

Se-Jeong Park, Jeong-Su Kim, Ramchan Woo, Se-Joong Lee, Kang-Min Lee, Tae-Hum Yang, Jin-Yong Jung and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits, Digest of Technical Papers. pp. 233-236, 2001

SOC Design Approaches Optimized for VLSI Fabrication Technologies

Se-Jeong Park, Chi-Weon Yoon and Hoi-Jun Yoo 

SCI 2001/ISAS 2001, July 2001

A Video Disk Array for Uncompressed HDTV Signal

Se-Jeong Park, Joo-Young Hwang, Kyung-Ho Kim, Chang-Kyu Lee, Sung-Hoon Baek, Jee-Hee Yeo, Jong-Hwa Lee and Kyu-Ho Park 

International Workshop on HDTV-98

- Domestic Conference Papers

Nonlinear Editing System for HDTV

Se-Jeong Park, Joo-Young Hwang, Jong-Hwa Lee and Kyu-Ho Park

Research Interest

-  High Speed Serial Interface 

-  Biomedical Applications - Hearing Aids 

-  Low power SDRAM 

-  iMEMS

Education

1999. 2     Ph.D. in Materials Science and Engineering, KAIST

Thesis: A Study on the actuation characteristics of thermally-driven polycrystalline silicon

microridge for switching device applications

1994. 2     M.S. in Materials Science and Engineering, KAIST

Thesis: A Study on the cermet electrode of 3Bi2O3.WO3 solid electrolyte

 

Work Experience

Patents

BIOGRAPHY

- International Journal Papers

A characterization of the thermal parameters of thermally driven polysilicon microbridge actuators using electrical impedance analysis

Jae-Youl Lee, Sang-Won Kang

Sensors and Actuators A, Vol. 75, pp. 222 - 229, 1999

Medium-temperature performance of cermet electrode containgin Ag and 3Bi2O3.WO3

Jae-Youl Lee, C. O. Park, H. D. Baek and J. S. Hwang

Sensors and Actuators B, Vol. 28, pp. 211 - 215, 1995

- International Conference Papers

A new thermal characterization technique for thermal actuators using a frequency response analyzer

Jae-Youl Lee, Sang-Won Kang

Inernational Microprocesses and Nanotechnology Conference, 15C-6-45, 1998

Extraction of thermal parameters for a thermal microactuator

Jae-Youl Lee, Sang-Won Kang

The 4th International Conference on Electronic materials, C-THU-17, 1998

Research Interest

-  ASIP design space exploration

-  Retargetable framework

-  Hardware modeling and simulation

-  Model translation

-  Ubiquitous computing

Education

2006. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

1999. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

              Thesis: Hardware Module Interchange Format for HW/SW Co-simulation

1997. 2  B.S. in EE, Yonsei University

BIOGRAPHY

-

Research Interest

- Mobile 3D Graphics 

- MPEG Video Post-Processor 

- Embedded Memory Logic Design 

- Low Power Design

BIOGRAPHY

- International Journal Papers

A Bit-Wise Read-Compare-Write Scheme for Low Power Read-Modify-Write Scheme

Yong-Ha Park, Sungdae Choi and Hoi-Jun Yoo

IEEE Electronics Letters , Vol. 38, No. 2, pp. 62-63, 17, Jan. 2002

Embedded DRAM (eDRAM) Power Energy Estimation Using Signal Swing-Based Analytical Model

Yong-Ha Park and Hoi-Jun Yoo

IEICE Transactions on Electronics, 2002

A 7.1GB/s Low-power Rendering Engine in 2D Array-embedded Memory Logic CMOS for Portable Multimedia System

Yong-Ha Park, Seon-Ho Han, Jung-Hwan Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits, Vol. 36, No. 6, pp. 944-955, June 2001

- International Conference Papers

Embedded DRAM (eDRAM) power-energy estimation for system-on-a-chip (SoC) applications

Yong-Ha Park, Jeonghoon Kook and Hoi-Jun Yoo

Design Automation Conference, 2002. Proceedings of ASP-DAC 2002

7th Asia and South Pacific and the 15th International Conference on VLSI Design, pp. 625-630, 2002

Single Chip 3D Rendering Engine Integrating Embedded DRAM Frame Buffer and Hierarchical Octet Tree (MOT) Array Processor with Bandwidth Amplification

Yong-Ha Park, Seon-Ho Han and Hoi-Jun Yoo

Design Automation Conference, 2001

Proceedings of the ASP-DAC 2001. Asia and South Pacific, pp.9-10,2001

A 7.1 GB/s low-power 3D rendering engine in 2D array-embedded memory logic CMOS

Yong-Ha Park, Seon-Ho Han, Jung-Su Kim, Se-Joong Lee, Jeong-Hun Kook, Jae-Won Lim, Ramchan Woo, Hoi-Jun Yoo, Jeong-Hwan Lee and Jay-Hyun Lee

IEEE International of Solid-State Circuits Conference, 2000

7.1 GB/sec bandwidth 3D rendering engine using the EML technology

Yong-Ha Park, Ramchan Woo, Sun-Ho Han, Jung-Su Kim, Se-Joong Lee, Jeong-Hun Kook, Jae-Woon Lim and Hoi-Jun Yoo

6th International Conference on VLSI and CAD, pp. 277-280, 1999

Research Interest

-  Flash Memory Design

BIOGRAPHY

- International Journal Papers

An 80/20-MHz 160-mW Multimedia Processor Integrated with Embedded DRAm, MPEG-4 Accelerator, and 3-D Renderiing Engine for Mobile Applications

Chi-Weon Yoon, Ramchan Woo, Jeonghoon Kook, Se-Joong Lee, Kangmin Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.36, No.11, November, 2001

Low Power Motion Estimation and Motion Compensation Block IPs in MPEG-4 Video Codec Hardware for Portable Applications

Chi-Weon Yoon and Hoi-Jun Yoo

The Institute of Electronics, Information and Communications Engineers (IEICE),Tr.on Electronics Vol. E86-C, No.4, April 2003

- International Conference Papers

Low power MPEG-4 Video Codec Hardware for Portale Applications

Chi-Weon Yoon and Hoi-Jun Yoo

International Symposium on Low-Power and High-Speed Chips (Coolchips-V), pp.77-89, April 2002

A 80/20MHz 160mW Multimedia Processor integrated with Embedded DRAM, MPEG-4 Accelerator, and 3D Rendering Engine for Mobile Applications

Chi-Weon Yoon, Ramchan Woo, Jeonghoon Kook, Se-Joong Lee, Kangmin Lee, Young-Don Bae, In-Cheol Park and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 5~8. 2001, San Fancisco

Low Power Motion Compensation Block IP with emdedded DRAM Macro for Portable Multimedia Applications

Chi-Weon Yoon, Jeonghoon Kook, Ramchan Woo, Se-Joong Lee, Kangmin Lee and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), June 12~14, 2001, Kyoto, Japan

A VPM(Virtual Pipelined Memory) Achitecture for a Fast Row-Cycle DRAM

Chi-Weon Yoon, Yon-Kyun Im, Seon-Ho Han, Hoi-Jun Yoo and Tae-Sung Jung

IEEE International Conference on VLSI and CAD (ICVC), pp. 388-391, 1999

Education

2005. MSc in International Executive Management, Lancaster University, UK

2004. Ph.D. in EE, Korea Advanced Institute of Science and Technology

2001. M.S. in EE, Korea Advanced Institute of Science and Technology

        Thesis: Design and Implementation of Low-Power Embedded 3D Graphics Rendering Engine

        for Mobile Applications using the Embedded Memory Logic Technology

1999. B.S. in EE, Korea Advanced Institute of Science and Technology Summa Cum Laude

1995. Daejeon Science High School Valedictorian

BIOGRAPHY

- International Journal Papers

A Low-Power 3D Rendering Engine with Two Texture Units and 29Mb Embedded DRAM for 3G Multimedia Terminals

Ramchan Woo, Sungdae Choi, Ju-Ho Sohn, Seong-Jun Song, Young-Don Bae and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jul. 2004

210mW Graphics LSI Implementing Full 3D Pipeline with 264Mtexels/s Texturing for Mobile Multimedia Applications

Ramchan Woo, Sungdae Choi, Ju-Ho Sohn, Seong-Jun Song and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Feb. 2004

A 120mW 3D Graphics Rendering Engine with 6Mb Embedded DRAM and 3.2Gbyte/s Runtime Reconfigurable Bus for PDA-Chip

Ramchan Woo, Chi-Weon Yoon, Jeonghoon Kook, Se-Joong Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Oct. 2002

- International Conference Papers

3D Graphics Circuit for 3G Multimedia Terminals(Invited Presentation)

Ramchan Woo

IEEE International Symposium on System-on-Chip 2004

A Low-Power Graphics LSI integrating 29Mb Embedded DRAM for Mobile Multimedia Applications

Ramchan Woo, Sungdae Choi, Ju-Ho Sohn, Seong-Jun Song, Young-Don Bae and Hoi-Jun Yoo

IEEE Asia-South-Pacific Design Automation Conference 2004 (ASP-DAC 2004) : University Design Contest

A 210mW Graphics LSI implementing Full 3D Pipeline with 264Mtexels/s Texturing for Mobile Multimedia Applications

Ramchan Woo, Sungdae Choi, Ju-Ho Sohn, Seong-Jun Song,Young-Don Bae, Chi-Weon Yoon, Byeong-Gyu Nam, Jeong-Ho Woo, Sung-Eun Kim, In-Cheol Park, Sungwon Shin, Kyung-Dong Yoo, Jin-Yong Chung and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference 2003 (ISSCC 2003)

A Low-Power and High-Performance 2D/3D Graphics Accelerator for Mobile Multimedia Applications

Ramchan Woo, Sungdae Choi, Ju-Ho Sohn, Seong-Jun Song, Young-Don Bae and Hoi-Jun Yoo

IEEE 15th International Hot Chips Conference 2003 (HotChips 2003)

A Low-Power 3D Rendering Engine with Two Texture Units and 29Mb Embedded DRAM for 3G Multimedia Terminals

Ramchan Woo, Sungdae Choi, Ju-Ho Sohn, Seong-Jun Song and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference (ESSCIRC 2003)

A 120mW Embedded 3D Graphics Rendering Engine with 6Mb Logically Local Frame-Buffer and 3.2GByte/s Run-time Reconfigurable Bus for PDA-Chip

Ramchan Woo, Chi-Weon Yoon, Jeonghoon Kook, Se-Joong Lee, Kangmin Lee, Yong-Ha Park and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits 2001 (VLSI 2001)

A 670ps, 64bit Dynamic Low-Power Adder Design

Ramchan Woo, Se-Joong Lee and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems 2000 (ISCAS 2000)

- Domestic Conference Papers

The Technology Trends of Embedded Processors on Portable Systems

Hoi-Jun Yoo and Ramchan Woo

The Magazine of the IEEK July, 2001 (Korean)

Research Interest

-  On-Chip Network for System-On-Chip Design 

    (This includes the study of optimal topology, switch structure, flow control, high-speed interconnection, and the implementation of all of these.) 

-  High-speed Digital Logic Design 

    (This includes the study of the fundamental concepts of logic operations and circuit level contributions for various logic schemes)

Education

2005. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Cost-Optimization and Chip Implemenation of On-Chip Network

2001. 2     M.S. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Performance Analysis of Gigabit Ethernet Shared-Memory Switch with Embedded DRAM

1999. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

1995. 2     Daejeon Science High School

BIOGRAPHY

- International Journal Papers

Analysis and Implementation of Practical Cost-Effective Network-on-Chips

Se-Joong Lee, Kangmin Lee and Hoi-Jun Yoo

IEEE Design & Test of Computers (Special Issue for NoC), Sep.-Oct. 2005

Packet-Switched On-Chip Interconnection Network for System-on-Chip Applications

Se-Joong Lee, Kangmin Lee, Seong-Jun Song and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems II (TCAS), vol. 52, No. 6, pp. 308-312, June 2005

Race Logic Architecture (RALA): A Novel Logic Concept Using the Race Scheme of Input Variables

Se-Joong Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuit (JSSC), Vol. 37, No. 2, pp. 191-201, Feb. 2002

- International Conference Papers

A Network-on-Chip with 3Gbps/wire Serialized On-chip Interconnect Using Adaptive Control Schemes

Se-Joong Lee, Kwanho Kim, Hyejung Kim, Namjun Cho and Hoi-Jun Yoo

Design, Automation and Test in Europe (DATE), Mar. 2006

Adaptive Network-on-Chip with Wave-Front Train Serialization Scheme

Se-Joong Lee, Kwanho Kim, Hyejung Kim, Namjun Cho and Hoi-Jun Yoo

IEEE Symposium on VLSI (SOVC), May 2005

An 800MHz Star-Connected On-Chip Network for Application to Systems on a Chip

Se-Joong Lee, Seong-Jun Song, Kangmin Lee, Jeong-Ho Woo, Sung-Eun Kim, Byeong-Gyu and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), pp.468 - 469, 2003

480ps 64-bit Race Logic Adder

Se-Joong Lee, Ramchan Woo and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), pp. 99-102, 2001

A Novel High Speed Low Power Logic Family : Race Logic

Se-Joong Lee and Hoi-Jun Yoo

IEEE European Solid-State Circuit Conference (ESSCIRC), pp. 420-423, Sept. 2000

One chip - low power Digital-TCXO with Sub-ppm Accuracy

Se-Joong Lee and Hoi-Jun Yoo 

IEEE International Symposium on Circuits and Systems (ISCAS), vol. 3, pp. 17-20, May 28, 2000

Research Interest

- Wireless Modem Design (2G/3G/WiMAX/LTE)

Education

2006. 2     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Design and Implementation of Low-Power Network-on-Chip for Application to

                 High-Performance System-on-Chip Design

2002. 8     M.S. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Design and Implementation of a 80Gbps Shared Bus Packet Switch using Embedded DRAM

2000. 6      Visiting Student in CS, University of California Berkeley (Summer Session)

2000. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

                 Overal GPA of 3.84 / 4.3

1996. 2     Chungnam Science High School

                 Graduate with the honor of Second rank in one year early

BIOGRAPHY

- Book

Low-Power NoC for High-Performance SoC Design

Hoi-Jun Yoo, Kangmin Lee, and Jun-Kyoung Kim

Morgan Kaufmann, 2008

- Book Chapters

Networks on Chips: Technology and Tools - Physical Network Layer

Hoi-Jun Yoo, Kangmin Lee, and Se-Joong Lee

in G. De Micheli CRC Press, July 2006

Networks on Chips: Technology and Tools - Design and Implementation of NoC-based SoCs

Hoi-Jun Yoo, Kangmin Lee, Se-Joong Lee and Kwanho Kim

in G. De Micheli CRC Press, July 2006

- International Journal Papers

Low-Power Network-on-Chip for High-Performance SoC Design

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE Transactions on VLSI Systems, Vol 14, No 2, pp. 148-160, February 2006

POPeye: A Simulator for a DRAM Performance Evaluation

Kangmin Lee, Chi-Weon Yoon, Ramchan Woo, Jeonghoon Kook, and Hoi-Jun Yoo

Journal of Semiconductor Technology and Science (Special issue on the 2001 Korean 

Conference on Semiconductors), Vol 1, No 2, pp. 116-124, June 2001

- International Conference Papers

Networks-on-chip and Networks-in-Package for High-Performance SoC Platforms

Kangmin Lee, Se-Joong Lee, Donghyun Kim, Kwanho Kim, Gawon Kim, Joungho Kim, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC) 2005, Accepted for Design Contest, pp.485-488, Nov. 2005

SILENT: Serialized Low Energy Transmission Coding for On-Chip Interconnection Networks

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE International Conference on Computer Aided Design (ICCAD), pp. 448-451, Nov. 2004

Low Energy Transmission Coding for On-Chip Serial Communications

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE International SOC Conference, pp. 177-178, Sep. 2004

A 51mW 1.6GHz On-Chip Network for Low-Power Heterogeneous SoC Platform

Kangmin Lee, Se-Joong Lee, Sung-Eun Kim, Hye-Mi Choi, Donghyun Kim, Sunyoung Kim, Min-Wuk Lee and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), pp. 153-154, Feb, 2004

A Distributed On-Chip Crossbar Switch Scheduler for On-Chip Networks

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference(CICC), pp. 671-674, Sep. 2003. San Jose, CA

A High-Speed and Lightweight On-Chip Crossbar Switch Scheduler for On-Chip Interconnection Networks

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE European Solid State Circuits Conference (ESSCIRC), pp. 453-456, Sep. 2003. Estoril,Portugal

A 10Gbps/port 8x8 Shared Bus Switch with embedded DRAM Hierarchical Output Buffer

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE European Solid State Circuits Conference (ESSCIRC), pp. 461-464, Sep. 2003. Estoril,Portugal

A Practical Method to use eDRAM in the Shared Bus Switch

Kangmin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE Global Telecommunications Conference (GLOBECOM), Vol. 1, pp. 769-772, Nov. 2002. Taipai, Taiwan

A Comparative Analysis of a DDR-SDRAM, a D-RDRAM and a DDR-FCRAM using a POPeye Simulator

Kangmin Lee, Chi-Weon Yoon, Ramchan-Woo, Jeonghoon Kook, Ja-Il Ku, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems (ISCAS), May 6~9. 2001. Sydney, Australia

- Domestic Conference Papers

POPeye: A Simulator for a DRAM Performance Evaluation

Kangmin Lee, Chi-Weon Yoon, Ramchan Woo, Jeonghoon Kook, and Hoi-Jun Yoo

Korea Conference on Semiconductors (KCS), Feb. 2001. Seoul

Research Interest

-  Low-power System & Embedded Memory System Architecture

Education

2006. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Design and Implementation of Ultra Low-Power Controller SoC for Body Sensor Network

2003. 2     M.S. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Design and Implementation of High Performance Application Specific Memory

2001. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

1996. 2     Daegu Science High School

BIOGRAPHY

- International Journal Papers

A 0.7fJ/Bit/Search, 2.2ns Search Time, Hybrid-Type TCAM Architecture

Sungdae Choi, Kyomin Sohn and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol. 40, No.1, pp.254-260, Jan. 2005

- International Conference Papers

A TCAM-based Periodic Event Generator for Multi-Node Management in the Body Sensor Network

Sungdae Choi, Kyomin Sohn, Jooyoung Kim, Jerald Yoo, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC), 2006

A Multi-Nodes Human Body Communication Sensor Network Control Processor

Sungdae Choi, Seong-Jun Song, Kyomin Sohn, Hyejung Kim, Jooyoung Kim, Namjun Cho, Jeong-Ho Woo, Jerald Yoo and Hoi-Jun Yoo 

IEEE Custom Integrated Circuits Conference(CICC), 2006

A 0.7fJ/Bit/Search, 2.2ns Search Time, Hybrid-Type TCAM Architecture

Sungdae Choi, Kyomin Sohn, Min-Wuk Lee, Sunyoung Kim, Hye-Mi Choi, Donghyun Kim, Uk-Rae Cho, Hyun-Geun Byun, Yun-Seung Shin and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), pp. 498-499, Feb. 2004

Design and Implementation of Read-Compare-Write circuits for low power Multi-Gigabit DRAM

Sungdae Choi, Yong-ha Park and Hoi-Jun Yoo

IEEE International Conference on Solid-State Devices and Materials (SSDM), pp.256-257, 2002

Research Interest

- Compiler infrastucture and optimization

- Program analysis and optimizations

- Design automation for embedded systems and reconfigurable computing

- Synthesis and optimizations for reconfigurable architectures

- Binary translation and dynamic optimizations

- Modeling and simulation for embedded systems

Education

2008. 2  Ph.D. in EECS, Korea Advanced Institute of Science and Technology

2002. 2  M.S. in EECS, Korea Advanced Institute of Science and Technology

2000. 2  B.S. in EECS, Korea Advanced Institute of Science and Technology

1996. 2  Daegu Science High School

BIOGRAPHY

- International Journal Papers

Speculative Loop Pipelining for Hardware Acceleration

Sejong Oh, Tag Gon Kim, Jung Hoon Jho

IEEE Transactions on CAD(TCAD), March 2008

- International Conference Papers

Memory Access Optimization of Dynamic Binary Translation for Reconfigurable Architectures

Sejong Oh, Tag Gon Kim

ACM/IEEE International Conference on Computer-Aided Design (ICCAD'05), November 2005

Quantitative Comparison of Two Retargetable Compilation Approaches

Sejong Oh, Yunheung Paek

International Conference on Parallel Processing(ICPP'03), October 2003

Research Interest

-  Computer Architecture. 3D computer graphics. System on a chip 

Education

2006. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: A Low Power Programmable 3D Graphics Processor with Fixed-point SIMD Vertex Shader

2003. 2     M.S. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Design and Optimization of Geomety Acceleration for Portable 3D Graphics

2001. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

                 Summa Cum Laude. Electrical engineering and computer science (Minor: Physics)

BIOGRAPHY

- International Journal Papers

A 155-mW 50-Mvertices/s Graphics Processor With Fixed-Point Programmable Vertex Shader for Mobile Applications

Ju-Ho Sohn, Jeong-Ho Woo, Min-wuk Lee, Hyejung Kim, Ramchan Woo and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits(JSSC), pp.1081-1091, May 2006

- International Conference Papers

Design and Test of Fixed-point Multimedia Co-processor for Mobile Applications

Ju-Ho Sohn, Jeong-Ho Woo, Jerald Yoo and Hoi-Jun Yoo

Design, Automation and Test in Europe (DATE), pp.249-253, Mar. 2006

A Fixed-point Multimedia Co-processor with 50Mvertices/s Programmable SIMD Vertex Shader for Mobile Applications

Ju-Ho Sohn, Jeong-Ho Woo, Min-wuk Lee, Hyejung Kim, Ramchan Woo and Hoi-Jun Yoo

European Solid-State Circuits Conference(ESSCIRC), pp.207-210, Sep. 2005

A 50Mvertices/s Graphics Processor with Fixed-point Programmable Vertex Shader for Mobile Applications

Ju-Ho Sohn, Jeong-Ho Woo, Min-wuk Lee, Hyejung Kim, Ramchan Woo and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), pp. 192-193, Feb. 2005

A Programmable Vertex Shader with Fixed-point SIMD Datapath for Low Power Wireless Applications

Ju-Ho Sohn, Ramchan woo and Hoi-Jun Yoo

SIGGRAPH/Eurographics Workshop on Graphics Hardware 2004, VOL.1. pp.107-114, 2004

Optimization of portable system architecture for real time 3D graphics

Ju-Ho Sohn, Ramchan woo and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Sstems (ISCAS), Vol. 1, pp. 769-772, 2002

Research Interest

-  Low-Power 3D Graphics Processor (GPU) 

-  High-Speed Embedded Microprocessor 

-  Low Power Computer Arithmetic Unit 

-  Power Management Unit for Low-Power SoC

Education

2007. 2     Ph.D. in EECS, Korea Advanced Institute of Science and Technology

                 Thesis: High-Performance Low-Power Small-Area 3D Graphics Processor based on

                             Logarithmic Arithmetic for Handheld Systems

2001. 2     M.S. in EECS, Korea Advanced Institute of Science and Technology

                 Thesis: Compiling Lazy Functional Programs to Java on the basis of Spineless Tagless

                              G-Machine with Eval-Apply Model

1999. 2     B.S. in Computer Engineering, Kyungpook National University  

                   Summa Cum Laude

BIOGRAPHY

- Book Chapters

Unified Computer Arithmetic for Handheld GPUs

Byeong-Gyu Nam, Hyejung Kim, and Hoi-Jun Yoo

Circuits for Nanotechnology : Communications Imaging and Sensing, CRC press, 2008

- International Journal Papers

An Embedded Stream Processor Core Based on Logarithmic Arithmetic for a Low-Power 3-D Graphics SoC

Byeong-Gyu Nam, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits(JSSC) Vol. 44, No.5, May 2009

Cost-effective low-power graphics processing unit for handheld devices

Byeong-Gyu Nam, Jeabin Lee, Kwanho Kim, Seungjin Lee, and Hoi-Jun Yoo

IEEE Communications Magazine (MCOM), Vol. 46, No.4, April 2008

Power nad Area-Efficient Unified Computation of Vector and Elementary Functions for Handheld 3D Graphics System

Byeong-Gyu Nam, Hyejung Kim, and Hoi-Jun Yoo

IEEE Transactions On Computers(TC), Vol. 57, No.4, April 2008

A Low-Power Unified Arithmetic Unit for Programmable Handheld 3-D Graphics Systems

Byeong-Gyu Nam, Hyejung Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits(JSSC), Vol. 42, No.8, August 2007

Development of a 3-D Graphics Rendering Engine with Lighting Acceleration for Handheld Multimedia Systems

Byeong-Gyu Nam, Min-wuk Lee, and Hoi-Jun Yoo

IEEE Transactions on Consumer Electronics, Vol. 51, No.3, August 2005

- International Conference Papers

A 28.5mW 2.8GFLOPS floating-point multifunction unit for handheld 3D graphics processors

Byeong-Gyu Nam, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC), 2007

A 52.4mW 3D Graphics Processor with 141Mvertices/s Vertex Shader and 3 Power Domains of Dynamic 

Voltage and Frequency Scaling

Byeong-Gyu Nam, Jeabin Lee, Kwanho Kim, Seung Jin Lee, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference(ISSCC), 2007

A Low-Power Handheld GPU using Logarithmic Arithmetic and Triple DVFS Power Domains

Byeong-Gyu Nam, Jeabin Lee, Kwanho Kim, Seung Jin Lee, and Hoi-Jun Yoo

ACM SIGGRAPH conference on Graphics Hardware(GH), 2007

A Low-Power Vector Processor using Logarithmic Arithmetic for Handheld 3D Graphics Systems 

Byeong-Gyu Nam, and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference (ESSCIRC), 2007

A 210MHz, 15mW Unified Vector and Transcendental Function Unit for Handheld 3-D Graphics Systems

Byeong-Gyu Nam, Hyejung Kim and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC), 2006

A Low-Power Unified Arithmetic Unit for Programmable Handheld 3-D Graphics Systems

Byeong-Gyu Nam, Hyejung Kim and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference(CICC), 2006

Research Interest

-  Synchronous SRAM Design(SPB, NtRAM, SP, DDR, QDR..) 

-  Memory-intensive SOC 

-  Low-power Embedded Memory System Architecture

Education

2007. 2     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                 Thesis: Design of Robust Memory with Embedded RISC

1996. 8     M.S. in Electrical Engineering, Yonsei University

1994. 2     B.S in Electrical Engineering, Yonsei University

BIOGRAPHY

- International Journal Papers

An Autonomous SRAM With On-Chip Sensors in an 80-nm Double Stacked Cell Technology

Kyomin Sohn, Hyun-Sun Mo, Young-Ho Suh, Hyun-Geun Byun, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol. 41, No.4, pp.823-829, Apr. 2006

- International Conference Papers

Processor-Based Built-in Self-Optimizer for 90nm Diode-Switch PRAM

Kyomin Sohn, Hyejung Kim, Jerald Yoo, Jeong-Ho Woo, Seung-Jin Lee, Woo-Yeong Cho, Bo-Tak Lim, Byung-Gil Choi, Chang-Sik Kim, Choong-Keun Kwak, Chang-Hyun Kim and Hoi-Jun Yoo

IEEE Symposium on VLSI Cirsuits(SOVC), Jun. 14~16, 2007

A 0.6-V, 6.8-uW Embedded SRAM for Ultra-low Power SoC

Kyomin Sohn, Sungdae Choi, Jeong-Ho Woo, Jooyoung Kim, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC)2006

An Autonomous SRAM with On-Chip Sensors in an 80-nm Double Stacked Cell Technology

Kyomin Sohn, Namjun Cho, Hyejung Kim, Kwanho Kim, Hyun-Sun Mo, Young-Ho Suh, Hyun-Geun Byun and Hoi-Jun Yoo

Symposium on VLSI Circuits (SOVC), pp. 232-235, Jun. 2005

Research Interest

-  Energy-efficient communication systems for body area and sensor networks

-  Ultra low-power wearable/implantable biomedical microsystems

-  RF CMOS integrated circuits for wireless applications

-  High-speed interface circuits including PLL and CDR circuits

Education

2007. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2004. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2001. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

BIOGRAPHY

- International Journal Papers

A 4Gb/s CMOS Clock and Data Recovery Circuit Using 1/8-Rate Clock Technique

Seong-Jun Song, Sung Min Park and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC),Vol. 38, No. 7, pp 1213-1219, July 2003

- International Conference Papers

A 0.9V 2.6mW Body-Coupled Scalable PHY Transceiver for Body Sensor Applications 

Seong-Jun Song, Namjun Cho, Sunyoung Kim, Jerald Yoo, Sungdae Choi and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), pp. 366-367, Feb. 2007

Low Power Wearable Audio Player Using Human Body Communications

Seong-Jun Song, Seung Jin Lee, Namjun Cho and Hoi-Jun Yoo

International Symposium on Wearable Computers (ISWC), Oct. 2006

A 4.8-mW 10-Mb/s Wideband Signaling Receiver Analog Front-End for Human Body Communications

Seong-Jun Song, Namjun Cho, Sunyoung Kim and Hoi-Jun Yoo

European Solid-State Circuits Conference (ESSCIRC), pp. 488-491, Sep. 2006

A 2Mb/s Wideband Pulse Transceiver with Direct-Coupled Interface for Human Body Communications

Seong-Jun Song, Namjun Cho, Sunyoung Kim and Hoi-Jun Yoo

International Solid-State Circuits C onference (ISSCC), pp. 558-559, Feb. 2006

A 4-Gb/s Clock and Data Recovery Circuit Using Four-Phase 1/8-Rate Clock

Seong-Jun Song, Jaeseo Lee, Sung Min Park and Hoi-Jun Yoo

European Solid State Circuits Conference (ESSCIRC), pp. 239-242, Sept. 2002

Research Interest

-  Low Power Programmable 3D Graphics Processor Design 

-  Low Power Multimedia SoC Design 

-  Embedded Memory System Design

Education

2008. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                    Thesis: Design and Implementation of Fully Programmable Portable 3D Graphics Processor

                    with Mobile Unified Shader  

2004. 8     M.S. in EE, Korea Advanced Institute of Science and Technology

2002. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

1998. 2     Daegu Science High School ( 9th )

Patents

BIOGRAPHY

- International Journal Papers

A 152-mW Mobile Multimedia SoC With Fully Programmable 3-D Graphics and MPEG4/H.264/JPEG 

Jeong-Ho Woo, Ju-Ho Shon, Hyejung Kim, and Hoi-Jun Yoo

IEEE Transactions on Very Large Scale Integration Systems (TVLSI), Vol.17, No.9, pp.1260-1266, Sep. 2009

A Low-Power Multimedia SoC with Fully Programmable 3D Graphics for Mobile Devices 

Jeong-Ho Woo, Ju-Ho Shon, Hyejung Kim, and Hoi-Jun Yoo

IEEE Computer Graphics and Applications (CG&A), Vol.29, No.5, pp.82-90, Sep.-Oct. 2009

A 195 mW, 9.1 MVertices/s Fully Programmable 3-D Graphics Processor for Low-Power Mobile Devices

Jeong-Ho Woo, Ju-Ho Sohn, Hyejung Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits(JSSC), pp.2370-2380, Nov 2008

A 195 mW/152 mW Mobile Multimedia SoC With Fully Programmable 3-D Graphics and MPEG4/H.264/JPEG 

Jeong-Ho Woo, Ju-Ho Sohn, Hyejung Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits(JSSC), pp.2047-2056, Sep 2008

- International Conference Papers

A 195mW, 9.1MVertices/s Fully Programmable 3D Graphics Processor for Low Power Mobile Devices  

Jeong-Ho Woo, Ju-Ho Sohn, Hyejung Kim, Jongcheol Jeong, Euljoo Jeong, Suk Joong Lee and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC), pp.372-375, Nov. 2007

A Low Power Multimedia SoC with Fully Programmable 3D Graphics and MPEG4/H.264/JPEG for Mobile Devices  

Jeong-Ho Woo, Ju-Ho Sohn, Hyejung Kim, Jongcheol Jeong, Euljoo Jeong, Suk Joong Lee and Hoi-Jun Yoo

IEEE Symposium on Low Power Electronics and Design (ISLPED), Aug. 27~29, 2007

A 152mW Mobile Multimedia SoC with Fully Programmable 3D Graphics and MPEG4/H.264/JPEG  

Jeong-Ho Woo, Ju-Ho Sohn, Hyejung Kim, Jongcheol Jeong, Euljoo Jeong, Suk Joong Lee and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), Jun. 14~16, 2007

A 152mW/195mW Multimedia Processor with Fully Programmable 3D Graphics and MPEG/H.264/JPEG for Handheld Devices

Jeong-Ho Woo, Ju-Ho Sohn, Hyejung Kim, Jongcheol Jeong, Euljoo Jeong, Suk Joong Lee and Hoi-Jun Yoo

IEEE DAC/ISSCC Student Design Contest, 2007

A 1.2Mpixels/s/mW 3-D Rendering Processor For Portable Multimedia Application

Jeong-Ho Woo, Min-wuk Lee, Hyejung Kim, Ju-Ho Sohn and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC), 2005

A 17mW, 20Mpixels/s 3-D Rendering Processor For Portable Multimedia Application

Jeong-Ho Woo, Min-wuk Lee, Hyejung Kim, Ju-Ho Sohn and Hoi-Jun Yoo

International SoC Design Conference(ISOCC), pp.612-612, Oct. 2005

Research Interest

-  Biomedical Microsystems Design

-  Mixed-Signal System Design

Education

2008. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                    Thesis: An Adaptive Digital Hearing Aid Chip with on Chip Human Factors Consideration

2005. 8     M.S. in EE, Korea Advanced Institute of Science and Technology

2002. 8     B.S. Yonsei University

1998. 2     Daegu SongHyun Girl's High School (16th)

BIOGRAPHY

- International Journal Papers

A Fully Integrated Digital Hearing Aid Chip With Human Factors Considerations

Sunyoung Kim, Seung Jin Lee, Namjun Cho, Seong-Jun Song, and Hoi-Jun Yoo 

IEEE Journal of Solid-State Circuits (JSSC),Vol. 43, No. 1, pp 266-274, January 2008

A 0.9 V 96uW Fully Operational Digital Hearing Aid Chip 

Sunyoung Kim, Namjun Cho, Seong-Jun Song, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC),Vol. 42, No.11, pp 2432-2440,Nov. 2007

An Energy-Efficient Analog Front-End Circuit for a Sub-1-V Digital Hearing Aid Chip

Sunyoung Kim, Jae-Youl Lee, Seong-Jun Song, Namjun Cho, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC),Vol. 41, No. 4, pp 876-882, April 2006

- International Conference Papers

Autonomous Gain Verification Algorithm for a Dual Mode Digital Hearing Aid Chip 

Sunyoung Kim, Long Yan, Minsu Kim, Joonsung Bae and Hoi-Jun Yoo 

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Aug. 20~24, 2008

A Real-Time Feedback Controlled Hearing Aid Chip with Reference Ear Model 

Sunyoung Kim, Seung Jin Lee, Namjun Cho, Seong-Jun Song and Hoi-Jun Yoo

IEEE Custum Integrated Circuits Conference (CICC), Sep 16~19, 2007

The Reference Ear Modeling Method for Internally Feedback Controlled Digital Hearing Aid Chip 

Sunyoung Kim, Seung Jin Lee, Namjun Cho, Seong-Jun Song and Hoi-Jun Yoo

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Aug. 23~26, 2007

Dual Threshold Preamplifier and Multi-Channel DSP for Human Factored Digital Hearing Aid Chip 

Sunyoung Kim, Seung Jin Lee, Namjun Cho, Seong-Jun Song and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), Jun. 14~16, 2007

A Fully Integrated Digital Hearing-Aid Chip with Human-Factors Considerations 

Sunyoung Kim, Seung Jin Lee, Namjun Cho, Seong-Jun Song and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), pp. 152-153, Feb. 2007

Clearphone : A 0.9 V 96 μW Digital Hearing Aid System

Sunyoung Kim, Namjun Cho, Seong-Jun Song, Donghyun Kim, Kwanho Kim and Hoi-Jun Yoo

IEEE Biomedical Circuits and Systems Conference (BIOCAS) 2006, p182-185, Nov. 2006

A Sub 1V 96 uW Fully Operational Digital Hearing Aid Chip With Internal Status Controller

Sunyoung Kim, Namjun Cho, Seong-Jun Song, Donghyun Kim, Kwanho Kim and Hoi-Jun Yoo

European Solid-State Circuits Conference (ESSCIRC), pp.231-234, Sep 2006

A 0.9-V 96-μW Digital hearing Aid Chip with Heterogeneous Σ-Δ DAC

Sunyoung Kim, Namjun Cho, Seong-Jun Song, Donghyun Kim, Kwanho Kim and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), Jun. 13~15, 2006

An Energy-Efficient Analog Front-End Circuit for a Sub-1V Digital Hearing Aid Chip

Sunyoung Kim, Jae-Youl Lee, Seong-Jun Song, Namjun Cho and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), Jun. 13~17, 2005

A 0.9-V 67-μW Analog Front-End using Adaptive-SNR Technique for Digital Hearing Aid

Sunyoung Kim, Jae-Youl Lee, Seong-Jun Song, Namjun Cho and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems (ISCAS), May 23~26, 2005

Research Interest

-  Network-on-Chip Implementation and Optimization 

Education

2009. 2     M.S , Ph.D. in EE, Korea Advanced Institute of Science and Technology

                    Thesis: Design and Implementation of Network-on-Chip Based Multi-Core Processor for Object Recognition

2003. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

1999. 2     Kyonggi Science High School

BIOGRAPHY

- International Journal Papers

Memory-centric network-on-chip for power efficient execution of task-level pipeline on a multi-core processor 

Donghyun Kim, Kwanho Kim, Joo-Young Kim, Seungjin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IET Computers & Digital Techniques (IET DCT), Vol.3, No.5, Sep. 2009

81.6 GOPS Object Recognition Processor Based on a Memory-Centric NoC 

Donghyun Kim, Kwanho Kim, Joo-Young Kim, Seungjin Lee, Se-Joong Lee, and Hoi-Jun Yoo

IEEE Transactions on Very Large Scale Integration Systems (TVLSI), Vol.17, No.3, Mar. 2009

- International Conference Papers

Implementation of Memory-Centric NoC for 81.6 GOPS Object Recognitiion Processor  Donghyun Kim, Kwanho Kim, Joo-Young Kim, Seungjin Lee, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(A-SSCC), pp.47-50, Nov. 2007

An 81.6 GOPS Object Recognition Processor Based on NoC and Visual Image Processing Memory 

Donghyun Kim, Kwanho Kim, Joo-Young Kim, Seungjin Lee, and Hoi-Jun Yoo

IEEE Custum Integrated Circuits Conference (CICC), Sep 16~19, 2007

Solutions for Real Chip Implementation Issues of NoC and Their Application to Memory-Centric NoC

Donghyun Kim, Kwanho Kim, Joo-Young Kim, Seungjin Lee, and Hoi-Jun Yoo

IEEE International Symposium on Networks-on-Chips (NOCS), May 7, 2007

A Reconfigurable Crossbar Switch with Adaptive Bandwidth Control for Networks-on-Chip

Donghyun Kim, Se-Joong Lee, Kangmin Lee, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems (ISCAS), May 25, 2005

Research Interest

-  Low-power Mixed-mode IC Design

Education

2009. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                    Thesis: Energy-efficient Body-channel Communication/MICS Dual-band Transceiver for Unified Body Sensor Network

2006. 2     M.S. in EE, Korea Advanced Institute of Science and Technology

2004. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

1999. 2     Hansung Science High School

BIOGRAPHY

 - International Journal Papers

A 10.8 mW Body Channel Communication/MICS Dual-Band Transceiver for a Unified Body Sensor Network Controller 

Namjun Cho, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.44, No.12 pp.3459-3468, Dec. 2009

A Planar MICS Band Antenna Combined With a Body Channel Communication Electrode for Body Sensor Network 

Namjun Cho, Taehwan Roh, Joonsung Bae, and Hoi-Jun Yoo

IEEE Transactions on Microwave Theory and Techniques (TMTT), Vol.57, No.10, pp.2515-2522, Oct. 2009

A 60 kb/s-10 Mb/s Adaptive Frequency Hopping Transceiver for Interference-Resilient Body Channel Communication 

Namjun Cho, Long Yan, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.44, No.3 pp.708-717, Mar. 2009

The Human Body Characteristics as a Signal Transmission Medium for Intrabody Communication

Namjun Cho, Jerald Yoo, Seong-Jun Song, Jeabin Lee, Seonghyun Jeon, and Hoi-Jun Yoo

IEEE Transactions on Microwave Theory and Techniques (TMTT), Vol.55, No.5, pp.1080-1086, May 2007

- International Conference Papers

A 10.8mW Body-Channel-Communication/MICS Dual-Band Transceiver for a Unified Body-Sensor-Network Controller  Namjun Cho, Joonsung Bae, and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), 2009

An Interference-Resilient Body Channel Transceiver for Wearable Body Sensor Network  Namjun Cho, Joonsung Bae, and Hoi-Jun Yoo 

IEEE International Conference on Biomedical Circuits and Systems(BioCAS) , 2008

A 60kb/s-to-10Mb/s, 0.37nJ/b Adaptive-Frequency-Hopping Transceiver for Body-Area Network  Namjun Cho, Jeabin Lee, Long Yan, Jonnsung Bae, Sunyoung Kim, and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), 2008

A 5.1-uW, UHF RFID Tag chip integrated with sensor for wireless environmental monitoring

Namjun Cho, Seong-Jun Song, Sunyoung Kim, Shiho Kim, and Hoi-jun Yoo

IEEE European Solid State Circuits Conference (ESSCIRC), Sep. 2005, Grenoble, France

A 8-uW, 0.3-mm2 RF-powered transponder with temperature sensor for wireless environmental 

monitoring

Namjun Cho, Seong-Jun Song, Jae-Youl Lee, Sunyoung Kim, Shiho Kim, and Hoi-Jun Yoo 

IEEE International Symposium on Circuits and Systems (ISCAS), May 25, 2005, Kobe, Japan

- Domesitc Papers

Body Channel Communication SoC for Low Power Wearable Networking  Namjun Cho, Junsun Park and Hoi-Jun Yoo

THE JOURNAL OF KOREAN INSTITUTE OF NEXT GENERATION Computing, 2007

Research Interest

-  Network-on-Chip based SoC Design

Education

2009. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                    Thesis: Energy-Efficient Real-Time Object Recognition Processor with Visual Attention Engine

2006. 2     M.S. in EE, Korea Advanced Institute of Science and Technology

2004. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

2000. 2     Hansung Science High School

BIOGRAPHY

- International Journal Papers

A Configurable Heterogeneous Multicore Architecture with Cellular Neural Network for Real-Time Object Recognition Kwanho Kim, Seungjin Lee, Joo-Young Kim, Minsu Kim, and Hoi-Jun Yoo 

IEEE Transactions on Circuits and Systems for Video Technology (TCSVT),Vol.19, No.11, pp.1612-1622, Nov. 2009

A 125 GOPS 583 mW Network-on-Chip Based Parallel Processor With Bio-Inspired Visual Attention Engine  Kwanho Kim, Seungjin Lee, Joo-Young Kim, Minsu Kim, and Hoi-Jun Yoo 

IEEE Journal of Solid-State Circuits (JSSC), Vol.44, No.1, pp.136-147, Jan. 2009

- International Conference Papers

A 76.8 GB/s 46 mW Low-latency Network-on-Chip for Real-time Object Recognition Processor  Kwanho Kim, Joo-Young Kim, Seungjin Lee, Minsu Kim, and Hoi-Jun Yoo 

IEEE Asian Solid-State Circuits Conference (ASSCC), pp.189-192, Nov. 2008

A 211 GOPS/W Dual-Mode Real-Time Object Recognition Processor with Network-on-Chip  Kwanho Kim, Joo-Young Kim, Seungjin Lee, Minsu Kim, and Hoi-Jun Yoo 

IEEE European Solid-State Circuits Conference (ESSCIRC), 2008

A 125GOPS 583mW Network-on-Chip Based Parallel Processor with Bio-inspired Visual Attention Engine  Kwanho Kim, Seungjin Lee, Joo-Young Kim, Minsu Kim, Donghyun Kim, Jeong-Ho Woo, and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), 2008

An Arbitration Look-Ahead Scheme for Reducing End-to-End Latency in Networks-on-Chip

Kwanho Kim, Se-Joong Lee, Kangmin Lee, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems (ISCAS), May 25, 2005

Research Interest

-  Low Power Processor Design for Body Sensor Network System and Wearable Computer System

-  Low Power Arithmetic Unit Design

-  3D Graphic Library for Mobile System

Education

2009. 8     Ph.D. in EE, Korea Advanced Institute of Science and Technology

                    Thesis: Low Energy Biomedical Signal Processor for Wearable Continuous ECG Monitoring System

2006. 8     M.S. in EE, Korea Advanced Institute of Science and Technology

2004. 2     B.S. in EE, Korea Advanced Institute of Science and Technology

2000. 2     Seoul Science High School

BIOGRAPHY

- International Journal Papers

ECG Signal Compression and Classification Algorithm With Quad Level Vector for ECG Holter System

Hyejung Kim, Refet Firat Yazicioglu, Patrick Merken, Chris Van Hoof, and Hoi-Jun Yoo

IEEE Transactions on Information Technology in Biomedicine (TITB), Vol.14, No.1, pp.93-100, Jan. 2010

A 231MHz, 2.18mW 32-bit Logarithmic Arithmetic Unit for Fixed-Point 3D Graphics System

Hyejung Kim, Byeong-Gyu Nam, Ju-ho Sohn, Jeong-Ho Woo and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.41, No.11, pp.2373-2381, Nov. 2006

- International Conference Papers

An Integrated Circuit for Wireless Ambulatory Arrhythmia Monitoring Systems  Hyejung Kim, Yazicioglu, Refet Firat, Torfs,Tom, Merken, Patirck, Van Hoof, Chris, and Hoi-Jun Yoo

IEEE Engineering in Medicine and Biology Society (EMBC), 2009

A Wearable Fabric Computer by Planar-Fashionable Circuit Board Technique  Hyejung Kim, Yongsang Kim, Binhee Kim, and Hoi-Jun Yoo

6th International Workshop on Wearable and Implantable Body Sensor Networks (BSN), 2009

A Low Energy Bio Sensor Node Processor for Continuous Healthcare Monitoring System  Hyejung Kim, Youngsang Kim, and Hoi-Jun Yoo 

IEEE Asian Solid-State Circuits Conference(ASSCC), pp.317-320, Nov. 2008

A Low Cost Quadratic Level ECG Compression Algorithm and Its Hardware Optimization for Body Sensor Network System  Hyejung Kim, Youngsang Kim, and Hoi-Jun Yoo 

IEEE Engineering in Medicine and Biology Society (EMBC), 2008

A 1.12mW Continuous Healthcare Monitor Chip Integrated on A Planar-Fashionable Circuit Board  Hyejung Kim, Youngsang Kim, Young-se Kwon, and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), 2008

An Embedded 8-bit RISC Controller for Yield Enhancement of the 90-nm PRAM  Hyejung Kim, Kyomin Sohn, Jerald Yoo and Hoi-Jun Yoo 

IEEE Custum Integrated Circuits Conference (CICC), 2007

A Low Power Compression Processor for Body Sensor Network System

Hyejung Kim, Sungdae Choi and Hoi-Jun Yoo

4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN), 2007

A Low Power 16-bit RISC with Lossless Compression Accelerator for Body Sensor Network System

Hyejung Kim, Sungdae Choi and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), 2006

A 231MHz, 2.18mW 32-bit Logarithmic Arithmetic Unit for Fixed-Point 3D Graphics System

Hyejung Kim, Byeong-Gyu Nam, Ju-ho Sohn, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), 2005

- Domesitc Papers

A Low Power Sensor Node Controller for Human Body Monitoring

Hyejung Kim, Sungdae Choi, Jerald Yoo, Seulki Lee, Yong-Sang Kim and Hoi-Jun Yoo

THE JOURNAL OF KOREAN INSTITUTE OF NEXT GENERATION Computing, 2006

Research Interest

-  Wearable Healthcare SoC 

-  Low Energy Fabric Area Network for BAN 

-  Wireless Power Transmission     

Education

2010. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2007. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2002. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

Work Experience

Patents

BIOGRAPHY

- International Journal Papers

A 5.2mW Self-Configured Wearable Body Sensor Network Controller and a 12μW 54.9% Efficiency Wirelessly Powered Sensor for Continuous Health Monitoring System

Jerald Yoo, Long Yan, Seulki Lee , Yongsang Kim, Hyejung Kim, Binhee Kim, and Hoi-Jun Yoo 

IEEE Journal of Solid-State Circuits (JSSC), Vol.45, No.1, pp.178-188, Jan. 2010

A 1.12 pJ/b Inductive Transceiver With a Fault-Tolerant Network Switch for Multi-Layer Wearable Body Area Network Applications

Jerald Yoo, Seulki Lee, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.44, No.11, pp.2999-3010, Nov. 2009

A Wearable ECG Acquisition System With Compact Planar-Fashionable Circuit Board-Based Shirt

Jerald Yoo, Long Yan, Seulki Lee, Hyejung Kim, and Hoi-Jun Yoo

IEEE Transactions on Information Technology in Biomedicine (TITB), Vol.13, No.6, pp.897-902, Nov. 2009

- International Conference Papers

An Attachable ECG Sensor Bandage with Planar-Fashionable Circuit Board 

Jerald Yoo, Long Yan, Seulki Lee, Hyejung Kim, Binhee Kim, and Hoi-Jun Yoo 

IEEE International Symposium on Wearable Computers (ISWC), 2009

A 5.2mW Self-Configured Wearable Body Sensor Network Controller and a 12μW 54.9% Efficiency Wirelessly Powered Sensor for Continuous Health Monitoring System  

Jerald Yoo, Long Yan, Seulki Lee , Yongsang Kim, Hyejung Kim, Binhee Kim, and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), 2009

A 1.12pJ/b Resonance Compensated Inductive Transceiver with a Fault-Tolerant Network Controller for Wearable Body Sensor Networks 

Jerald Yoo, Seulki Lee, and Hoi-Jun Yoo 

IEEE Asian Solid-State Circuits Conference (ASSCC), pp.313-316, Nov. 2008

Analysis of Body Sensor Network Using Human Body as the Channel  

Jerald Yoo, Namjun Cho, and Hoi-Jun Yoo

ACM 3rd International Conference on Body Area Sensor Network (BodyNets), Mar. 2008

Student Forum Presentation  

Jerald Yoo, Seulki Lee and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (Student Forum), Feb. 2008

A 10-uW Digital Signal Processor with Adaptive-SNR Monitoring for a Sub-1V Hearing Aid

Jerald Yoo, Sunyoung Kim, Namjun Cho, Seong-Jun Song, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems(ISCAS), pp.3361-3364, May 2006

Research Interest

- Computer Vision Algorithms

- Multi-core Computer Architecture and Parallel Programming

- Low-power Silicon-on-a-Chip Design

Education

2010. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2007. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2005. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2001. 2  Kyonggi Science High School

Work Experience

Patents

Awards

BIOGRAPHY

- International Journal Papers

A 118.4 GB/s Multi-Casting Network-on-Chip With Hierarchical Star-Ring Combined Topology for Real-Time Object Recognition

Joo-Young Kim, Junyoung Park, Seungjin Lee, Minsu Kim, Jinwook Oh, and Hoi-Jun Yoo 

IEEE Journal of Solid-State Circuits, Vol.45, No.7, Jul. 2010

An attention controlled multi-core architecture for energy efficient object recognition

Joo-Young Kim, Sejong Oh, Seungjin Lee, Minsu Kim, Jinwook Oh, and Hoi-Jun Yoo 

Signal Processing : Image Communication, Vol.25, No.5, Jun. 2010

Visual Image Processing RAM: Memory Architecture with 2-D Data Location Search and Data Consistency Management for a Multi-Core Object Recognition Processor 

Joo-Young Kim, Donghyun Kim, Kwanho Kim, Seungjin Lee, and Hoi-Jun Yoo 

IEEE Transactions on Circuits and Systems for Video Technology, Vol.20, No.4, Apr. 2010

A 201.4 GOPS 496 mW Real-Time Multi-Object Recognition Processor With Bio-Inspired Neural Perception Engine

Joo-Young Kim, Minsu Kim, Seungjin Lee , Jinwook Oh, Kwanho Kim, and Hoi-Jun Yoo 

IEEE Journal of Solid-State Circuits, Vol.45, No.1, Jan. 2010

Real-Time Object Recognition with Neuro-Fuzzy Controlled Workload-aware Task Pipelining

Joo-Young Kim, Minsu Kim, Seungjin Lee, Jinwook Oh, Sejong Oh, and Hoi-Jun Yoo 

IEEE Micro, Vol.29, No.6, Nov. 2009

- International Conference Papers

A Real-Time Embedded Vision System with 201.4GOPS 496mW Object Recognition Processor 

Joo-Young Kim, Seungjin Lee, Minsu Kim, Jinwook Oh, Hoi-Jun Yoo

Design Automation Conference (DAC), 2010

A 118.4GB/s Multi-Casting Network-on-Chip for Real-Time Object Recognition Processor 

Joo-Young Kim, Kwanho Kim, Minsu Kim, Seungjin Lee, Jinwook Oh, and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference(ESSCIRC), 2009

A 60fps 496mW Multi-Object Recognition Processor with Workload-Aware Dynamic Power Management 

Joo-Young Kim, Seungjin Lee, Jinwook Oh, Minsu Kim, and Hoi-Jun Yoo 

IEEE International Symposium on Low Power Electronics and Design(ISLPED), 2009

An Energy Efficient Real-Time Object Recognition Processor with Neuro-Fuzzy Controlled Workload-aware Task Pipelining 

Joo-Young Kim, Minsu Kim, Seungjin Lee, Jinwook Oh, Kwanho Kim, Jeong-Ho Woo, and Hoi-Jun Yoo 

IEEE International Iow power and high speed chips symposium(CoolChips), 2009

A 201.4GOPS 496mW Real-Time Multi-Object Recognition Processor with Bio-Inspired Neural Perception Engine

Joo-Young Kim, Minsu Kim, Seungjin Lee, Jinwook Oh, Kwanho Kim, Sejong Oh, Jeong-Ho Woo, Donghyun Kim, and Hoi-Jun Yoo 

IEEE International Solid-State Circuits Conference (ISSCC), 2009

A 66fps 38mW Nearest Neighbor Matching Processor with Hierarchical VQ Algorithm for Real-Time Object Recognition  

Joo-Young Kim, Kwanho Kim, Seunjin Lee, Minsu Kim, and Hoi-Jun Yoo 

IEEE Asian Solid-State Circuits Conference(ASSCC), pp.177-180, Nov. 2008

Bitwise Competition Logic for Compact Digital Comparator  Joo-Young Kim, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference(ASSCC), pp.59-62, Nov. 2007

Visual Image Processing RAM for Fast 2-D Location Search  

Joo-Young Kim, Donghyun Kim, Seung-Jin Lee, Kwanho Kim, Sunghyun Jeon and Hoi-Jun Yoo

European Solid-State Circuits Conference (ESSCIRC), Sep. 11~13, 2007

A 372ps 64-bit Adder using Fast Pull-up Logic in 0.18-um CMOS

Joo-Young Kim, Kangmin Lee and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems(ISCAS), pp.13-16, May 2006

Research Interest

- Network-on-Chip Based Soc Design

- Low Power DSP

Education

2011. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2008. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2006. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2002. 2  Myungduk Foreign Language High School

BIOGRAPHY

- International Journal Papers

24-GOPS 4.5-mm2 Digital Cellular Neural Network for Rapid Visual Attention in an Object-Recognition SoC

Seungjin Lee, Minsu Kim, Kwanho Kim, Joo-Young Kim, and Hoi-Jun Yoo

IEEE Transactions on Neural Network (TNN), Vol.22, No.1, pp.42-51, Jan. 2011

A 345 mW Heterogeneous Many-Core Processor With an Intelligent Inference Engine for Robust Object Recognition

Seungjin Lee, Jinwook Oh, Junyoung Park, Joonsoo Kwon, Minsu Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.46, No.1, pp.42-51, Jan. 2011

Familiarity based unified visual attention model for fast and robust object recognition 

Seungjin Lee, Kwanho Kim, Joo-Young Kim, Minsu Kim, and Hoi-Jun Yoo

Pattern Recognition (PR), Vol.43, No.3, pp.1116-1128, Mar. 2010

- International Conference Papers

A 92mW 76.8GOPS Vector Matching Processor with Parallel Huffman Decoder and Query Re-ordering Buffer for Real-time Object Recognition

Seungjin Lee, Joonsoo Kwon, Jinwook Oh, Junyoung Park, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2010

Intelligent NoC with Neuro-Fuzzy Bandwidth Regulation for a 51 IP Object Recognition Processor

Seungjin Lee, Jinwook Oh, Minsu Kim, Junyoung Park, Joonsoo Kwon, Joo-Young Kim, and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference (CICC), Sep. 2010

A 36 Heterogeneous Core Architecture with Resource-Aware Fine-grained Task Scheduling for Feedback Attention based Object Recognition

Seungjin Lee, Jinwook Oh, Minsu Kim, Joonyoung Park, Joonsoo Kwon, Joo-Young Kim, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips(COOL Chips), Apr. 2010

A 345mW Heterogeneous Many-Core Processor with an Intelligent Inference Engine for Robust Object Recognition

Seungjin Lee, Jinwook Oh, Minsu Kim, Junyoung Park, Joonsoo Kwon, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference(ISSCC), Feb. 2010

The Brain Mimicking Visual Attention Engine: An 80x60 Digital Cellular Neural Network for Rapid Global Feature Extraction  

Seungjin Lee, Kwanho Kim, Minsu Kim, Joo-Young Kim, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), Jun. 2008

A Low Power Digital Signal Processor with Adaptive Band Activation for Digital Hearing Aid Chip

Seungjin Lee, Sunyoung Kim, and Hoi-Jun Yoo 

IEEE International Symposium on Circuits and Systems(ISCAS), May 2007

Research Interest

- Next generation biomedical systems

- Mixed-mode circuits for wearable and implantable applications

- Sensors and transceivers for IoT

Education

2011. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2009. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2007. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2002. 2  University of International Business and Economics in China

1998. 9  YanBian No.1 High School in China

BIOGRAPHY

- International Journal Papers

A 3.9mW 25-Electrode Reconfigured Sensor for Wearable Cardiac Monitoring System

Long Yan, Joonsung Bae, Seulki Lee, Taehwan Roh, Kiseok Song, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.46, No.1, pp.353-364, Jan. 2011

A Low-Power Portable ECG Touch Sensor with Two Dry Metal Contact Electrodes

Long Yan, and Hoi-Jun Yoo

Journal of Semiconductor Technology and Science (JSTS), Vol.10, No.4, pp.300-308, Dec. 2010

A 0.5-μVrms 12-μW Wirelessly-Powered Patch Type Healthcare Sensor for Wearable Body Sensor Network

Long Yan, Jerald Yoo, Binhee Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.45, No.11, pp.2356-2365, Nov. 2010

- International Conference Papers

A 1Mb/s, -75dBm Sensitive Fully Integrated Body Channel Transceiver for a Low Energy CompactWearable Healthcare Sensor

Long Yan, Joonsung Bae, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2010

A Smart Poultice with Reconfigurable Sensor Array for Wearable Cardiac Healthcare

Long Yan, and Hoi-Jun Yoo

International Conference on Pervasive Computing Technologies for Healthcare (Pervasive Health), Mar. 2010

A 3.9mW 25-Electrode Reconfigured Thoracic Impedance/ECG SoC with Body-Channel Transponder

Long Yan, Joonsung Bae, Seulki Lee, Binhee Kim, Taehwan Roh, Kiseok Song, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2010

A 0.5μVrms 12μW Patch Type Fabric Sensor for Wearable Body Sensor Network

Long Yan, Jerald Yoo, Binhee Kim, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2009

A Two-Electrode 2.88nJ/Conversion Biopotential Acquisition System for Portable Healthcare Device 

Long Yan , Namjun Cho, Jerald Yoo, Binhee Kim, and Hoi-Jun Yoo 

IEEE Asian Solid-State Circuits Conference (A-SSCC), pp.329-332, Nov. 2008

Research Interest

-  Wearable Body Sensor Network

-  Inductive Coupling Transceiver Design

-  Planar-Fashionable Circuit Board

Education

2012. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2009. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2007. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2004. 2  Seoul Science High School

BIOGRAPHY

- International Journal Papers

A 75μW Real-Time Scalable Body Area Network Controller and a 25μW ExG Sensor IC for Compact Sleep Monitoring Applications

Seulki Lee, Long Yan, Taehwan Roh, Sunjoo Hong, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.47, No.1, pp.323-334, Jan. 2012

A Low-Energy Inductive Coupling Transceiver With Cm-Range 50-Mbps Data Communication in Mobile Device Applications

Seulki Lee, Kiseok Song, Jerald Yoo, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Vol.45, No.11, pp.2366-2374, Nov. 2010

A 4.78μs Dynamic Compensated Inductive Coupling Transceiver for Ubiquitous and Wearable Body Sensor Network

Seulki Lee, Jerald Yoo, and Hoi-Jun Yoo

IEICE Transactions on Communications, Vol.E93-B, No.11, pp.2892-2900, Nov. 2010

Planar Fashionable Circuit Board Technology and Its Applications

Seulki Lee, Binhee Kim, and Hoi-Jun Yoo

Journal of Semiconductor Technology and Science (JSTS), Vol.9, No.3, pp.174-180, Sep. 2009

A 200-Mbps 0.02-nJ/b Dual-Mode Inductive Coupling Transceiver for cm-Range Multimedia Application  

Seulki Lee, Jerald Yoo, and Hoi-Jun Yoo 

IEEE Transactions on Circuits and Systems-I: Regular Papers(TCAS-1), Vol.56, No.5, pp.1063-1072, May 2009

- International Conference Papers

A 2.1μW Real-Time Reconfigurable Wearable Ban Controller with Dual Linked List Structure

Seulki Lee, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems(ISCAS), May. 2012

A 3-Channel 150μW Electrooculography (EOG) Monitoring System for Wearable Human Computer Interface (HCI)

Seulki Lee, Sunjoo Hong, Changmin Joo, and Hoi-Jun Yoo

European Solid-State Circuits Conference (Fringe Poster), Sep. 2011

The Smart Patches and Wearable Band (W-Band) for Comfortable Sleep Monitoring System

Seulki Lee, Long Yan, Taehwan Roh, Sunjoo Hong and Hoi-Jun Yoo

European Molecular Biology Conference (EMBC), Sep. 2011

A 75μW Real-Time Scalable Network Controller and a 25μW ExG Sensor IC for Compact Sleep-Monitoring Applications

Seulki Lee, Long Yan, Taehwan Roh, Sunjoo Hong and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2011

Wearable Sensor Nodes Design for Home Healthcare System

Seulki Lee, and Hoi-Jun Yoo

International Conference on Ubiquitous Healthcare (uHealthcare), Oct. 2010

Arm-Band type Textile-MP3 Player with Multi-layer Planar Fashionable Circuit Board (P-FCB) Techniques

Seulki Lee, Binhee Kim, Taehwan Roh, Sunjoo Hong, and Hoi-Jun Yoo

IEEE International Symposium on Wearable Computers (ISWC), Oct. 2010

Live Demonstration: A Real-time Compensated Inductive Transceiver for Wearable MP3 Player System on Multi-layered Planar Fashionable Circuit Board

Seulki Lee, Seungwook Paek, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), Jun. 2010

A 1.3pJ/b Inductive Coupling Transceiver with Adaptive Gain Control for Cm-range 50Mbps Data Communication

Seulki Lee, Jerald Yoo, Kiseok Song, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2009

A Dynamic Real-time Capacitor Compensated Inductive Coupling Transceiver for Wearable Body Sensor Network

Seulki Lee, Jerald Yoo, Hyejung Kim, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SOVC), Jun. 2009

A Wearable Inductor Channel Design for Blood Pressure Monitoring System in Daily Life

Seulki Lee, Jerald Yoo, and Hoi-Jun Yoo

International Conference on Pervasive Computing Technologies for Healthcare (Pervasive Health), Apr. 2009

A Healthcare Monitoring System with Wireless Woven Inductor Channels for Body Sensor Network

Seulki Lee, Jerald Yoo, and Hoi-Jun Yoo

International Workshop on Wearable and Implantable Body Sensor Networks(BSN), Jun. 2008

A 200Mbps 0.02nJ/b dual-mode inductive coupling transceiver for cm-range interconnection

Seulki Lee, Jerald Yoo, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems(ISCAS), May 2008

- Domesitc Papers

A wearable computing network using conductive yarn

Seulki Lee, Jerald Yoo, Yongsang Kim, Hyejung Kim, and Hoi-Jun Yoo

THE JOURNAL OF KOREAN INSTITUTE OF NEXT GENERATION COMPUTING, Mar. 2008

Research Interest

-  High Speed Serial Interface PHY

-  Short Range Wireless Connectivity

-  WBAN Circuits and Systems

-  Biomedical Circuits and Systems

Education

2013. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2009. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2007. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2003. 2  Kyonggi Science High School

Work Experience

Patents

BIOGRAPHY

- International Journal Papers

A 45uW Injection-Locked FSK Wake-Up Receiver With Frequency-to-Envelope Conversion for Crystal-Less Wireless Body Area Network

Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr, 2015

The Effects of Electrode Configuration on Body Channel Communication Based on Analysis of Vertical and Horizontal Electric Dipoles

Joonsung Bae, and Hoi-Jun Yoo

IEEE Transaction on Microwave Theory and Techniques (TMTT), Apr. 2015

A Low Energy Crystal-Less Double-FSK Sensor Node Transceiver for Wireless Body-Area-Network

Joonsung Bae, Kiseok Song, Hyungwoo Lee, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Nov. 2012

A Signal Transmission Mechanism on the Surface of Human Body for Body Channel Communication

Joonsung Bae, Hyunwoo Cho, Kiseok Song, Hyungwoo Lee, and Hoi-Jun Yoo

IEEE Transaction on Microwave Theory and Techniques (TMTT), Mar. 2012

A 0.24nJ/b Wireless Body-Area-Network Transceiver with Scalabe Double-FSK Modulation

Joonsung Bae, Kiseok Song, Hyungwoo Lee, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jan. 2012

A Low Energy Injection-Locked FSK Transceiver With Frequency-to-Amplitude Conversion for Body Sensor Applicatoins

Joonsung Bae, Long Yan, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2011

- International Conference Papers

A 45uW Injection-Locked FSK Wake-Up Receiver for Crystal-Less Wireless Body-Area-Network

Joonsung Bae, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuit Conference (A-SSCC), Nov. 2012

An Energy-Efficient Body Channel Communication based on Maxwell’s Equations Analysis of On-Body Transmission Mechanism

Joonsung Bae, Kiseok Song, Hyunwoo Cho, Hyungwoo Lee, and Hoi-Jun Yoo

International Symposium on Medical Information and Communication Technology (ISMICT), Mar. 2012

A Low Energy Crystal-Less Double-FSK Transceiver for Wireless Body-Area-Network

Joonsung Bae, Kiseok Song, Hyungwoo Lee, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuit Conference (A-SSCC), Nov. 2011

A 0.24nJ/b Wireless Body-Area-Network Transceiver with Scalable Double-FSK Modulation

Joonsung Bae, Kiseok Song, Hyungwoo Lee, Hyunwoo Cho, Long Yan and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2011

Unified Body Sensor Network Transceiver for Wireless Healthcare System

Joonsung Bae, and Hoi-Jun Yoo

International Conference on Ubiquitous Healthcare (U-Healthcare), Oct. 2010

A Low Energy Injection-Locked FSK Transceiver with Frequency-to-Amplitude Conversion for Body Sensor Applications

Joonsung Bae, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (VLSI Circuits), Jun. 2010

A 490uW Fully MICS Compatible FSK Transceiver for Implantable Devices

Joonsung Bae, Namjun Cho, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (VLSI Circuits), Jun. 2009

A 0.6pJ/b 3Gb/s/ch Transceiver in 0.18um CMOS for 10mm On-chip Interconnects

Joonsung Bae, Joo-Young Kim, and Hoi-Jun Yoo 

IEEE International Symposium on Circuits and Systems(ISCAS), May 2008

Research Interest

-  Energy-efficient Computing Architecture and Algorithm 

-  Hardware Acceleration of Computer Vision and Machine Learning Algorithms

Education

2013. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2010. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2008. 2  B.S. in EECS, Seoul National University

2003. 2  Seoul Jung-San High School ( 7th )

Patents

BIOGRAPHY

- International Journal Papers

A 57 mW 12.5μJ/epoch Embedded Mixed-mode Neuro-Fuzzy Processor for Mobile Real-time Object Recognition

Jinwook Oh, Gyeonghoon Kim, Byeong-Gyu Nam and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), 2013

Low-Power Real-Time Object Recognition Processor For Mobile Vision Systems

Jinwook Oh, Gyeonghoon Kim, Junyoung Park, Injoon Hong, Seungjin Lee, Joo-Young Kim, Jeong-Ho Woo, and Hoi-Jun Yoo

IEEE Micro (MICRO), 2012

A 320mW 342GOPS Real-Time Dynamic Object Recognition Processor for HD 720p Video Streams

Jinwook Oh, Gyeonghoon Kim, Junyoung Park, Injoon Hong, Seungjin Lee, Joo-Young Kim, Jeong-Ho Woo, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), 2013

A 1.2-mW Online Learning Mixed-mode Intelligent Inference Engine for Low Power Real-time Object Recognition Processor

Jinwook Oh, Seungjin Lee, and Hoi-Jun Yoo

IEEE Transactions on Very Large Scale Integration Systems (TVLSI), 2012

- International Conference Papers

A Dynamic Resource Controller with Network-on-chip for a 10.5nJ/pixel Object Recognition Processor

Jinwook Oh, Injoon Hong, Gyeonghoon Kim, Junyoung Park, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2012

A Simultaneous Multithreading Heterogeneous Object Recognition Processor with Machine Learning Based Dynamic Resource Management

Jinwook Oh, Gyeonghoon Kim, Junyoung Park, Injoon Hong, Seungjin Lee, Joo-Young Kim, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips(COOLCHIPS), Apr. 2012

A 320mW 342GOPS Real-Time Moving Object Recognition Processor for HD 720p Video Streams

Jinwook Oh, Gyeonghoon Kim, Junyoung Park, Injoon Hong, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2012

An Asynchronous Mixed-mode Neuro-Fuzzy Controller for Energy Efficient Machine Intelligence SoC

Jinwook Oh, Jinwook Oh, Gyeonghoon Kim, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2011

A 57mW Embedded Mixed Mode Neuro-Fuzzy Accelerator for Intelligent Multi-core Processor

Jinwook Oh, Jinwook Oh, Junyoung Park, Gyeonghoon Kim, Seungjin Lee and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2011

A 1.2mW On-Line Learning Mixed Mode Intelligent Inference Engine for Robust Object Recognition

Jinwook Oh, Seungjin Lee, Minsu Kim, Joonsoo Kwon, Junyoung Park, Joo-Young Kim and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SoVC), Jun. 2010

Student Research Preview Presentation  

Jinwook Oh, Seungjin Lee, Minsu Kim, Joonsoo Kwon, Junyoung Park and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (Student Research Preview), Feb. 2010

An Area Efficient Shared Synapse Cellular Neural Network for Low Power Image Processing  

Jinwook Oh, Seungjin Lee, Joo-Young Kim, and Hoi-Jun Yoo 

International Symposium on VLSI Design, Automation and Test(VLSI-DAT), April 2009

Research Interest

- Low-power Processing Unit for Wearable Platform

- Bio-potential Signal Processing

- Planar-Fashionable Circuit Board (P-FCB)

Education

2014. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2011. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2009. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2004. 2  Seoul Science High School

Work Experience

BIOGRAPHY

- International Journal Papers

A 295.6μW HRV-EEG Processor With Nonlinear Chaotic Analysis During Mental Tasks

Taehwan Roh, Sunjoo Hong, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (T-BioCAS), Jan. 2015

A Wearable Neuro-feedback System with EEG-based Mental Status Monitoring and Transcranial Electrical Stimulation

Taehwan Roh, Kiseok Song, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (T-BioCAS), Nov., 2014

- International Conference Papers

Wearable Depression Monitoring System with Heart-rate Variability

Taehwan Roh, Sunjoo Hong and Hoi-Jun Yoo

International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Aug. 2014

A 2.14mW EEG Neuro-feedback Processor with Transcranial Electrical Stimulation for Mental Health Management

Taehwan Roh, Kiseok Song, Hyunwoo Cho, Dongjoo Shin, Unsoo Ha, Kwonjoon Lee, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2014

Wearable Mental-health Monitoring Platform with Independent Component Analysis and Nonlinear Chaotic Analysis

Taehwan Roh, Kyeongryeol Bong, Sunjoo Hong, Hyunwoo Cho, and Hoi-Jun Yoo

International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Sep. 2012

A 259.6μW Nonlinear HRV-EEG Chaos Processor with Body Channel Communication Interface for Mental Health Monitoring

Taehwan Roh, Sunjoo Hong, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2012

A 15μW 16 Channel ExG Processor with Data Transition Memory-Quad Level Vector for Wearable Healthcare Platform

Taehwan Roh, Seulki Lee, and Hoi-Jun Yoo

IEEE Biomedical Circuits and Systems Conference(BioCAS), Nov. 2011

A 10Mb/s 4ns Jitter Direct Conversion Low Modulation Index FSK Demodulator for Low-energy Body Sensor Network

Taehwan Roh, Joonsung Bae, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems(ISCAS), Jun. 2010

Research Interest

- Many-core Architecture

- Intelligent Vision SoC

Education

2014. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2011. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2009. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2005. 2  Daegu Science High School (16th)

Work Experience

BIOGRAPHY

- International Journal Papers

Intelligent Network-on-Chip with Online Reinforcement Learning for Portable HD Object Recognition Processor

Junyoung Park, Injoon Hong, Gyeonghoon Kim, Byeong-Gyu Nam, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems (TCAS), Feb. 2014

A 92mW Real-Time Traffic Sign Recognition System with Robust Illumination Adaptation and Support Vector Mahcine

Junyoung Park, Joonsoo Kwon, Jinwook Oh, Seungjin Lee, Joo-Young Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits(JSSC), Nov. 2012

- International Conference Papers

A High-throughput 16x Super Resolution Processor for Real-Time Object Recognition SoC

Junyoung Park, Byeong-Gyu Nam, and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference(ESSCIRC), Sep. 2013

A multi-granularity parallelism object recognition processor with content-aware fine-grained task scheduling

Junyoung Park, Injoon Hong, Gyeonghoon Kim, Youchang Kim, Kyuho Lee, Seongwook Park, Kyeongryeol Bong, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips(COOLCHIPS), Apr. 2013

A 646 GOPS/W Multi-classifier Many-core Processor with Cortex-like Architecture for Super-Resolution Recognition

Junyoung Park, Injoon Hong, Gyeonghoon Kim, Youchang Kim, Kyuho Lee, Seongwook Park, Kyeongryeol Bong, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2013

Online Reinforcement Learning NoC for Portable HD Object Recognition Processor

Junyoung Park, Injoon Hong, Gyeonghoon Kim, Jinwook Oh, Seungjin Lee, and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference (CICC), Sep. 2012

A 92mW Real-Time Traffic Sign Recognition System with Robust Light and Dark Adaptation

Junyoung Park, Joonsoo Kwon, Jinwook Oh, Seungjin Lee, and Hoi-Jun Yoo

IEEE Asian Solid-state Circuit Conference(A-SSCC), Nov. 2011

A 30fps Stereo Matching Processor Based on Belief Propagation with Disparity-Parallel PE Array Architecture

Junyoung Park, Seungjin Lee, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems(ISCAS), Jun. 2010

Research Interest

-  Closed-Loop Electrical Stimulator IC Design

-  Smart Electro-Acupuncture Stimulator IC Design 

-  Smart Iontophoresis Controller IC Design 

-  Non-invasive Glucose Monitoring IC Design 

-  Bio-feedback Electrical Stimulator IC Design

CV

Resume

Education

2015. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2011. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2009. 8  B.S. in EE, Korea Advanced Institute of Science and Technology

2005. 2  Hansung Science High School

Patents

BIOGRAPHY

- International Journal Papers

An Impedance and Multi-wavelength Near-infrared Spectroscopy IC for Non-invasive Blood Glucose Estimation

Kiseok Song, Unsoo Ha, Seongwook Park, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2015

An 87mA·min Iontophoresis Controller IC with Dual-Mode Impedance Sensor for Patch Type Transdermal Drug Delivery System

Kiseok Song, Unsoo Ha, Jaehyuk Lee, Kyeongryeol Bong, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jan. 2014

A Sub-10 nA DC-Balanced Adaptive Stimulator IC With Multi-Modal Sensor for Compact Electro-Acupuncture Stimulation

Kiseok Song, Hyungwoo Leee, Sunjoo Hong, Hyunwoo Cho, Unsoo Ha, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (T-BioCAS), Jan. 2013

A Wirelessly-Powered Electro-Acupuncture based on Adaptive Pulse Width Mono-Phase Stimulation

Kiseok Song, Long Yan, Seulki Lee,Jerald Yoo, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (T-BioCAS), Apr. 2011

- International Conference Papers

An Impedance and Multi-wavelength Near-infrared Spectroscopy IC for Non-invasive Blood Glucose Estimation

Kiseok Song, Unsoo Ha, Seongwook Park, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Jun. 2014

Bio-Feedback Iontophoresis Patch for Controllable Transdermal Drug Delivery

Kiseok Song, Unsoo Ha, Jaehyuk Lee, and Hoi-Jun Yoo

IEEE International Conference on Biomedical Circuits and Systems (BioCAS), Oct. 2013

An 87mA·min Iontophoresis Controller IC with Dual-Mode Impedance Sensor for Patch Type Transdermal Drug Delivery System

Kiseok Song, Unsoo Ha, Jaehyuk Lee, Kyeongryeol Bong, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2013

Compact Electro-Acupuncture System for Multi-Modal Feedback Stimulation

Kiseok Song, Hyungwoo Lee, Sunjoo Hong, Hyunwoo Cho, Kwonjoon Lee, and Hoi-Jun Yoo

IEEE International Conference on Biomedical Circuits and Systems (BioCAS), Nov. 2012

A Dynamic Electrode Impedance Matched Acupuncture-Type Diagnosis System with Concurrent Feedback of Physiological Signals

Kiseok Song, Sunjoo Hong, Taehwan Roh, Unsoo Ha, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2012

The Compact Electro-Acupuncture System for Multi-Modal Feedback Electro-Acupuncture Treatment

Kiseok Song, Hyungwoo Lee, Sunjoo Hong, Hyunwoo Cho, and Hoi-Jun Yoo

International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Sep. 2012

A Sub-10nA DC-Balanced Adaptive Stimulator IC with Mulimodal Sensor for Compact Electro-Acupuncture System

Kiseok Song, Hyungwoo Lee, Sunjoo Hong, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2012

A 20μW Contact Impedance Sensor for Wireless Body-Area-Network Transceiver

Kiseok Song, Joonsung Bae, Long Yan, and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference(CICC), Sep. 2011

A Wirelessly-Powered Electro-Acupuncture based on Adaptive Pulse Width Mono-Phase Stimulation

Kiseok Song, Seulki Lee, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems(ISCAS), Jun. 2010

Research Interest

- Electro-Acupucture Stimulator SoC

Education

2015. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2012. 9  M.S. in EE, Korea Advanced Institute of Science and Technology

2010. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2006. 2  Seoul Science High School

BIOGRAPHY

- International Conference Papers

A 33mW/node Duty Cycle Controlled HBC Transceiver System for Medical BAN with 64 Sensor Nodes

Hyungwoo Lee, Hyunwoo Cho and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference (CICC), Sep. 2014

A 5.5mW IEEE 802.15.6 Wireless Body Area Network Standard Transceiver for Multi-Channel Electro-Acupuncture Application

Hyungwoo Lee, Kwonjoon Lee, Sunjoo Hong, Kiseok Song, Taehwan Roh, Joonsung Bae, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2013

A 60μW 10Mb/s Fully Digital FSK Demodulator for Power-Jitter Efficient Medical BAN

Hyungwoo Lee, Taehwan Roh, Joonsung Bae, and Hoi-Jun Yoo

IEEE Asia-Pacific Conference on Circuits and Systems (APCCAS), Dec. 2010

A 2.4µW 400nC/s Constant Charge Injector for Wirelessly-Powered Electro-Acupuncture

Hyungwoo Lee, Kiseok Song, Long Yan, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems(ISCAS), May. 2011

Research Interest

-  Markerless Augmented Reality 

-  HMD System Development

Education

2015. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2011. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2009. 8  B.S. in EE, Korea Advanced Institute of Science and Technology

2006. 2  Daegu Science High School

BIOGRAPHY

- International Journal Papers

A 1.22 TOPS and 1.52 mW/MHz Augmented Reality Multi-Core Processor with Neural Network NoC for HMD Applications  

Gyeonghoon Kim, Kyuho Lee, Youchang Kim, Seongwook Park, Injoon Hong, Kyeongryeol Bong, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jan, 2015

An Augmented Reality Processor with a Congestion-Aware Network-on-Chip Scheduler

Gyeonghoon Kim, Donghyun Kim, Seongwook Park, Youchang Kim, Kyuho Lee, Injoon Hong, Kyeongryeol Bong, and Hoi-Jun Yoo

IEEE MICRO, Nov.-Dec. 2014

An 86mW 98GOPS ANN-Searching Processor for Full-HD 30fps Video Object Recognition with Zeroless Locality-Sensitive Hashing  

Gyeonghoon Kim, Jinwook Oh, Seungjin Lee, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), June 2013

- International Conference Papers

A Low-power and Real-time Augmented Reality Processor for the Next Generation Smart Glasses

Gyeonghoon Kim, and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOTCHIPS) , Aug. 2015

K-glass: Real-time markerless augmented reality smart glasses platform

Gyeonghoon Kim, Sungpil Choi, and Hoi-Jun Yoo

IEEE International Conferecne on Industrial Technology (ICIT), Mar. 2015

A Task-level Pipelined Many-SIMD Augmented Reality Processor with Congestion-aware Network-on-Chip Scheduler

Gyeonghoon Kim, Seongwook Park, Kyuho Lee, Youchang Kim, Injoon Hong, Kyeongryeol Bong, Dongjoo Shin, Sungpill Choi, Junyoung Park, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOLCHIPS), Apr. 2014

A 1.22TOPS and 1.52mW/MHz Augmented Reality Multi-Core Processor with Neural Network NoC for HMD Applications

Gyeonghoon Kim, Youchang Kim, Kyuho Lee, Seongwook Park, Injoon Hong, Kyeongryeol Bong, Dongjoo Shin, Sungpill Choi, Jinwook Oh, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2014

A 86mW 98GOPS ANN-Searching Processor for Full-HD 30fps Video Object Recognition with Zeroless Locality-Sensitive Hashing

Gyeonghoon Kim, Jinwook Oh, and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference (ESSCIRC), Sep. 2012

A Low-energy Hybrid Radix-4/-8 Multiplier for Portable Multimedia Applications

Gyeonghoon Kim, Seungjin Lee, Junyoung Park, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2011

Research Interest

- Low Power Sensor for Wearable Healthcare System

- Planar Fashionable Circuit Board (P-FCB)

Education

2015. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2012. 8  M.S. in EE, Korea Advanced Institute of Science and Technology

2010. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2006. 2  Seoul Science High School

BIOGRAPHY

- International Journal Papers

A 10.4mW Electrical Impedance Tomography SoC for Portable Real-Time Lung Ventilation Monitoring System

Sunjoo Hong, Jaehyuk Lee, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Nov, 2015

A 4.9mΩ-Sensitivity Mobile Electrical Impedance Tomography IC for Early Breast-Cancer Detection System  

Sunjoo Hong, Kwonjoon Lee, Unsoo Ha, Hyunki Kim, Yongsu Lee, Youchang Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jan, 2015

- International Conference Papers

Wearable Lung-health Monitoring System with Electrical Impedance Tomography

Sunjoo Hong, Jaehyuk Lee, Hoi-Jun Yoo

IEEE Engineering in Medicine and Biology Society(EMBC), Aug. 2015

A 10.4 mW Electrical Impedance Tomography SoC for Portable Real-time Lung Ventilation Monitoring System

Sunjoo Hong, Jaehyuk Lee, Joonsung Bae and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2014

A 4.9mΩ Sensitivity Mobile Electrical Impedance Tomography IC for Early Breast Cancer Detection System

Sunjoo Hong, Kwonjoon Lee, Unsoo Ha, Hyunki Kim, Yongsu Lee, Youchang Kim, and Hoi-Jun Yoo

EEE International Solid-State Circuits Conference (ISSCC), Feb. 2014

A 46 μW Motion Artifact Reduction Bio-Signal Sensor with ICA Based Adaptive DC Level Control for Sleep Monitoring System

Sunjoo Hong, Seulki Lee, Taehwan Roh, and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference (CICC), Sep. 2012

A 145uW 8x8 Parallel Multiplier Based on Optimized Bypassing Architecture

Sunjoo Hong, Taehwan Roh, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2011

A Combined Method to Reduce Motion Artifact and Power Line Interference for Wearable Healthcare Systems

Sunjoo Hong, Kiseok Song, Long Yan, and Hoi-Jun Yoo

IEEE Asia-Pacific Conference on Circuits and Systems (APCCAS), Dec. 2010

Research Interest

- Low Power CMOS Transceiver for Body Area Network 

Education

2016. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2012. 9  M.S. in EE, Korea Advanced Institute of Science and Technology

2010. 8  B.S. in Dept. of Physics, Korea Advanced Institute of Science and Technology

2006. 2  Kyonggi Science High School

BIOGRAPHY

- International Journal Papers

A 79 pJ/b 80 Mb/s Full-Duplex Transceiver and a 42.5 µW 100 kb/s Super-Regenerative Transceiver for Body Channel Communication

Hyunwoo Cho, Hyunki Kim, Minseo Kim, Jaeeun Jang, Yongsu Lee, Kyuho Jason Lee, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuit (JSSC), Jan 2016

A 5.2 mW IEEE 802.15.6 HBC Standard Compatible Transceiver With Power Efficient Delay-Locked-Loop Based BPSK Demodulator

Hyunwoo Cho, Hyungwoo Lee, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuit (JSSC), Nov 2015

A 37.5µW Body Channel Communication Wake-up Receiver with Injection-locking Ring Oscillator for Wireless Body Area Network

Hyunwoo Cho, Joonsung Bae, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems (TCAS), May 2013

- International Conference Papers

A 79pJ/b 80Mb/s Full Duplexer Transceiver and a 42.5uW 100kb/s Super-regenerative Transceiver for Body Channel Communication

Hyunwoo Cho, Hyunki Kim, Minseo Kim, Jaeeun Jang, and Hoi-Jun Yoo

IEEE International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications(IMWS-Bio), Sep. 2015

A 79pJ/b 80Mb/s Full Duplexer Transceiver and a 42.5uW 100kb/s Super-regenerative Transceiver for Body Channel Communication

Hyunwoo Cho, Hyunki Kim, Minseo Kim, Jaeeun Jang, Joonsung Bae, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2015

A 5.2mW IEEE 802.15.6 HBC Standard Compatible Transceiver with Power Efficient Delay-Locked-Loop Based BPSK Demodulator

Hyunwoo Cho, Hyungwoo Lee, Joonsung Bae, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2014

1.2Gb/s, 3.9pJ/b Mono-Phase Pules Modulation Inductive Coupling Transceiver for mm-range Board-to-Board Communication

Hyunwoo Cho, Unsoo Ha, Taehwan Roh, Dongchurl Kim, Jaehyuck Lee, Yunje Oh, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2013

A 39μW Body Channel Communication Wake-up Receiver with Injection-locking Ring-oscillator for Wireless Body Area Network

Hyunwoo Cho, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems(ISCAS), May. 2012

A 5.3µW Contact Monitoring Sensor with BCC Electrode and MICS Antenna for Energy Efficient Unified WABN Transceiver

Hyunwoo Cho, Joonsung Base, Kiseok Song and Hoi-Jun Yoo

IEEE International Midwest Symposium on Circuits and Systems(MWSCAS), Aug. 2011

Research Interest

-  Network-on-Chip Based SoC Design

-  Computer Vision Hardware Architecture

Education

2016. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2013. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2010. 8  B.S. in EE, Korea Advanced Institute of Science and Technology

2006. 2  Daegu Science High School

Award

BIOGRAPHY

- International Jornal Papers

A 2.71 nJ/Pixel Gaze-Activated Object Recognition System for Low-Power Mobile Smart Glasses

Injoon Hong, Kyeongryeol Bong, Dongjoo Shin, Seongwook Park, Kyuho Jason Lee, Youchang Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jan, 2016

A 27 mW Reconfigurable Marker-Less Logarithmic Camera Pose Estimation Engine for Mobile Augmented Reality Processor

Injoon Hong, Gyeonghoon Kim, Youchang Kim, Band Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Nov, 2015

- International Conference Papers

A 1.9nJ/Pixel Deep Neural Network Processor for High Speed Visual Attention in a Mobile Vision Recognition SoC

Injoon Hong, Seongwook Park, Junyoung Park, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2015

A Keypoint-level Parallel Pipelined Object Recognition Processor with Gaze Activation Image Sensor for Mobile Sensor Glasses System

Injoon Hong, Dongjoo Shin, Youchang Kim, Kyeongryeol Bong, Seongwook Park, Kyuho Lee, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOLCHIPS), Apr. 2015

A 2.71nJ/Pixel 3D-Stacked Gaze-Activated Object Recognition System for Low-power Mobile HMD Applications

Injoon Hong, Kyeongryeol Bong, Dongjoo Shin, Seongwook Park, Kyuho Lee, Youchang Kim, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2015

A 27mW Reconfigurable Marker-Less Logarithmic Camera Pose Estimation Engine for Mobile Augmented Reality Processor

Injoon Hong, Gyeonghoon Kim, Youchang Kim, Donghyun Kim, Byeong-Gyu Nam, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2014

A 125,582 vector/s Throughput and 95.1% Accuracy ANN Searching Processor with Neuro-Fuzzy Vision Cache for Real-time Object Recognition  

Injoon Hong, Junyoung Park, Gyeonghoon Kim, Jinwook Oh and Hoi-Jun Yoo 

IEEE Symposium on VLSI Circuits (S.VLSI), June 2013

1.15mW Mixed-mode Neuro-Fuzzy Accelerator for Keypoint Localization in Image Processing

Injoon Hong, Jinwook Oh, and Hoi-Jun Yoo

IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Aug. 2011

Research Interest

- Sensor Front-End Design for Multimodal Healthcare System

Education

2017. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2013. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2012. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2007. 2  Masan Jeil High School

Awards

BIOGRAPHY

- International Journal Papers

An EEG-NIRS Multimodal SoC for Accurate Anesthesia Depth Monitoring

Unsoo Ha, Jaehyuk Lee, Minseo Kim, Taehwan Roh, Sangsik Choi, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Mar. 2018

A Wearable EEG-HEG-HRV Multimodal System With Simultaneous Monitoring of tES for Mental Health Management

Unsoo Ha, Yongsu Lee, Hyunki Kim, Taehwan Roh, Joongsung Bae, Changhyeon Kim, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), Dec. 2015

- International Conference Papers

A Multimodal Headpatch System for Patient Brain Monitoring in OR and PACU

Unsoo Ha, Hoi-Jun Yoo and Joonsung Bae

IEEE International Conference on Biomedical Circuits and Systems (BioCAS), Oct. 2017

A 25.2mW EEG-NIRS Multimodal SoC for Accurate Anesthesia Depth Monitoring

Unsoo Ha, Jaehyuk Lee, Jihee Lee, Kwantae Kim, Minseo Kim, Taehwan Roh, Sangsik Choi, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2017

An EEG-NIRS Ear-Module SoC for Wearable Drowsiness Monitoring System

Unsoo Ha and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2017

A Multimodal Drowsiness Monitoring Ear-Module System with Closed-Loop Real-Time Alarm

Unsoo Ha and Hoi-Jun Yoo

IEEE Biomedical Circuits and Systems Conference (BioCAS), Jan. 2017

A Multimodal Stress Monitoring System with Canonical Correlation Analysis

Unsoo Ha, Changhyeon Kim, Yongsu Lee, Hyunki Lee, Taehwan Roh and Hoi-Jun Yoo

IEEE Engineering in Medicine and Biology Society (EMBC), Aug. 2015

A Wearable EEG-HEG-HRV Multimodal System with Real-time Transcranial Electrical Stimulation Monitoring for Mental Health Management

Unsoo Ha, Yongsu Lee, Hyunki Kim, Taehwan Roh, Joonsung Bae, Changhyeon Kim, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2015

A 0.7pJ/bit 2Gbps Self-synchronous Serial Link Receiver Using Gated-ring Oscillator for Inductive Coupling Communication

Unsoo Ha, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May 2013

Research Interest

- Multi-core and Network-on-Chip Architecture

- Machine Learning and Artificial Intelligence

Education

2017. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2014. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2012. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2008. 2  Seoul Science High School

Awards

BIOGRAPHY

- International Journal Papers

A 0.55 V 1.1 mW Artificial Intelligence Processor with On-chip PVT Compensation for Autonomous Mobile Robots

Youchang Kim, Dongjoo Shin, Jinsu Lee, Yongsu Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I: Regular Papers, Accepted

BRAIN: A Low-Power Deep Search Engine for Autonomous Robots

Youchang Kim, Dongjoo Shin, Jinsu Lee, and Hoi-Jun Yoo

IEEE MICRO, Sep.-Oct. 2017

A 0.5 V 54 μW Ultra-Low-Power Object Matching Processor for Micro Air Vehicle Navigation

Youchang Kim, Injoon Hong, Junyoung Park, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I: Regular Papers, Mar. 2016

- International Conference Papers

Low-Power Real-Time Intelligent SoCs for Smart Machines

Youchang Kim, Injoon Hong, Seongwook Park, and Hoi-Jun Yoo

IEEE International System-on-Chip Conference (SOCC), Sep. 2016

A 1.1mW 32-thread Artificial Intelligence Processor with 3-level Transposition Table and On-chip PVT Compensation for Autonomous Mobile Robots

Youchang Kim, Dongjoo Shin, Jinsu Lee, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips XIX), Apr, 2016

A 0.55V 1.1mW Artificial-Intelligence Processsor with PVT Compensation for Micro Robots

Youchang Kim, Dongjoo Shin, Jinsu Lee, Yongsu Lee, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2016

A 0.5V 54μW Ultra-Low-Power Recognition Processor with 93.5% Accuracy Geometric Vocabulary Tree and 47.5% Database Compression

Youchang Kim, Injoon Hong, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2015

A 4.9 mW Neural Network Task Scheduler for Congestion-Minimized Network-on-Chip in Multi-Core Systems

Youchang Kim, Gyeonghoon Kim, Injoon Hong, Donghyun Kim, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2014

A 34.1fps Scale-space Processor with Two-dimensional Cache for Real-time Object Recognition  

Youchang Kim, Junyoung Park, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May 2013

Research Interest

-  Machine Learning & Intelligent Vision SoC Design for ADAS

-  Mixed-Mode Heterogeneous Multi-Core Architecture

-  High-Throughput Network-on-Chip Architecture 

Education

2017. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2014. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2012. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2008. 2  Hansung Science High School

BIOGRAPHY

- International Journal Papers

The Development of Silicon for AI: Different Design Approaches 

Kyuho Jason Lee, Jinmook Lee, Sungpill Choi, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-1), Early Access. 2020

A 502-GOPS and 0.984-mW Dual-Mode Intelligent ADAS SoC With Real-Time Semiglobal Matching and Intention Prediction for Smart Automotive Black Box System

Kyuho Lee, Kyeongryeol Bong, Changhyeon Kim, Jaeeun Jang, Kyoung-Rog Lee, Jihee Lee, Gyeonghoon Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jan. 2017

A Vocabulary Forest Object Matching Processor with 2.07M-vector/s Throughput and 13.3nJ/vector Per-vector Energy for Full-HD 60fps Video Object Recognition

Kyuho Lee, Gyeonghoon Kim, Junyoung Park, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2015

- International Conference Papers

A Real-Time and Energy-Efficient Embedded System for Intelligent ADAS with RNN-Based Deep Risk Prediction using Stereo Camera

Kyuho Lee, Gyeongmin Choe, Kyeongryeol Bong, Changhyeon Kim, In So Kweon, and Hoi-Jun Yoo

International Conference on Computer Vision Systems (ICVS), Jul. 2017

An Intelligent ADAS Processor with Real-Time Semi-Global Matching and Intention Prediction for 720p Stereo Vision

Kyuho Lee, Kyeongryeol Bong, Changhyeon Kim, and Hoi-Jun Yoo

IEEE Hot Chips Symposium (HCS), Aug. 2016

An Energy-Efficient Parallel Multi-Core ADAS Processor with Robust Visual Attention and Workload-Prediction DVFS for Real-Time HD Stereo Stream

Kyuho Lee, Kyeongryeol Bong, Changyeon Kim, Junyoung Park and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips XIX), Apr, 2016

A 502GOPS and 0.984mW Dual-Mode ADAS SoC with RNN-FIS Engine for Intention Prediction in Automotive Black-Box System

Kyuho Lee, Kyeongryeol Bong, Changhyeon Kim, Jaeeun Jang, Hyunki Kim, Jihee Lee, Kyoungrog Lee, Gyeonghoon Kim, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2016

Intelligent Task Scheduler with High Throughput NoC for Real-Time Mobile Object Recognition SoC

Kyuho Lee, Junyoung Park, Injoon Hong and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference (ESSCIRC), Sep. 2015

A Vocabulary Forest-based Object Matching Processor with 2.07M-vec/s Throughput and 13.3nJ/vector Energy in Full-HD Resolution  

Kyuho Lee, Gyeonghoon Kim, Junyoung Park and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Jun. 2014

A Multi-Modal and Tunable Radial-Basis-Funtion Circuit with Supply and Temperature Compensation

Kyuho Lee, Junyoung Park, Gyeonghoon Kim, Injoon Hong, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May 2013

Research Interest

- Intelligent Vision SoC

- Cognitive Computing

Education

2018. 2  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2014. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2012. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2006. 2  Daegu Science High School

BIOGRAPHY

- International Journal Papers

An Energy-Efficient Embedded Deep Neural Network Processor for High Speed Visual Attention in Mobile Vision Recognition SoC

Seongwook Park, Injoon Hong, Junyoung Park, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits, Accepted

An Energy-Efficient and Scalable Deep Learning/Interference Processor With Tetra-Parallel MIMD Architecture for Big Data Application

Seongwook Park, Junyoung Park, Kyeongryeol Bong, Dongjoo Shin, Jinmook Lee, Sungpill Choi, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), Dec. 2015

- International Conference Papers

A 126.1mW Real-Time Natural UI/UX Processor with Embedded Deep-Learning Core for Low-Power Smart Glasses

Seongwook Park, Sungpill Choi, Jinmook Lee, Minseo Kim, Junyoung Park, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2016

A 1.93 TOPS/W Scalable Deep Learning/Inference Processor with Tetra-parallel MIMD Architecture for Big Data Applications

Seongwook Park, Kyeongryeol Bong, Dongjoo Shin, Jinmook Lee, Sungpill Choi, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2015

A 1.5nJ/pixel Super-Resolution Enhanced FAST Corner Detection Processor for High Accuracy AR

Seongwook Park, Gyeonghoon Kim, Junyoung Park, and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference (ESSCIRC), Sep. 2014

A 32.8mW 60fps Cortical Vision Processor for Spatio-Temporal Action Recognition

Seongwook Park, Junyoung Park, Injoon Hong, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May 2013

Research Interest

- Mixed-mode Classifier

Education

2018. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2015. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2012. 8  B.S. in EE, Korea Advanced Institute of Science and Technology

2008. 2  Seoul Science High School

BIOGRAPHY

- International Journal Papers

A Low-Power Convolutional Neural Network Face Recognition Processor and a CIS Integrated With Always-on Face Detector

Kyeongryeol Bong, Sungpill Choi, Changhyeon Kim, Donghyeon Han, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Dec. 2017

Low-Power Convolutional Neural Network Processor for a Face-Recognition System

Kyeongryeol Bong, Sungpill Choi, Changhyeon Kim, and Hoi-Jun Yoo

IEEE Micro, Nov. 2017

A 0.5° Error 10 mW CMOS Image Sensor-Based Gaze Estimation Processor

Kyeongryeol Bong, Injoon Hong, Gyeonghoon Kim, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2016

- International Conference Papers

A 590MDE/s Semi-Global Matching Processor with Lossless Data Compression

Kyeongryeol Bong, Kyuho Lee, and Hoi-Jun Yoo

IEEE System-on-Chip Conference (SOCC), Sep. 2017

A 0.62mW Ultra-low-power Convolution​al Neural Network Face Recognition Processor and a CIS Integrated with Always-on Haar-like Face Detector

Kyeongryeol Bong, Changhyeon Kim, Sungpil Choi, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2017

A 0.5-degree Error 10mW CMOS Image Sensor-based Gaze Estimation Processor with Logarithmic Processing

Kyeongryeol Bong, Injoon Hong, Gyeonghoon Kim and Hoi-Jun Yoo

IEEE Symposia on VLSI Technology and Circuits (SOVC), Jun. 2015

Energy-efficient Mixed-mode Support Vector Machine Processor with Analog Gaussian Kernel

Kyeongryeol Bong, Gyeonghoon Kim and Hoi-Jun Yoo

IEEE Custom Integrated Circuits Conference (CICC), Sep. 2014

An 1.61mW Mixed-Signal Column Processor for Brisk Feature Extraction in CMOS Image Sensor  

Kyeongryeol Bong, Gyeonghoon Kim, Injoon Hong, and Hoi-jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), June 2014

Research Interest

-  Multi-core Architecture

-  Network-on-Chip

-  Machine learning & Vision SoC

Education

2018. 8  Ph.D. in EE, Korea Advanced Institute of Science and Technology

2015. 2  M.S. in EE, Korea Advanced Institute of Science and Technology

2013. 2  B.S. in EE, Korea Advanced Institute of Science and Technology

2008. 2  Kyonggi Science High School

BIOGRAPHY

- International Journal Papers

DNPU: An Energy-Efficient Deep Learning Processor with Heterogeneous Multi-Core Architecture

Dongjoo Shin, Jinmook Lee, Jinsu Lee, Juhyoung Lee, and Hoi-Jun Yoo

IEEE Micro, 2018, Sep. 2018

- International Conference Papers

A 1.41mW On-chip/Off-chip Hybrid Transposition Table for Low-power Robust Deep Tree Search in Artifiicial Intelligence SoCs

Dongjoo Shin, Youchang Kim, and Hoi-Jun Yoo

IEEE System-on-Chip Conference (SOCC), Sep. 2017

DNPU: An Energy-Efficient Deep Neural Network Processor with On-Chip Stereo Matching

Dongjoo Shin and Hoi-Jun Yoo

IEEE Hot Chips Symposium (HCS), Aug. 2017

An Energy-Efficient Deep Learning Processor with Heterogeneous Multi-Core Architecture for Convolutional Neural Networks and Recurrent Neural Networks

Dongjoo Shin, Jinmook Lee, Jinsu Lee, Juhyoung Lee, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2017

DNPU: An 8.1 TOPS/W Reconfigurable CNN-RNN Processor for General-Purpose Deep Neural Networks

Dongjoo Shin, Jinmook Lee, Jinsu Lee, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2017

A 33 nJ/vector Descriptor Generation Processor for Low-power Object Recognition

Dongjoo Shin, Injoon Hong, Gyeonghoon Kim, and Hoi-Jun Yoo

IEEE Symposia on VLSI Technlogy and Circuits (SoVC), Jun. 2015

An 1.92mW Feature Reuse Engine based on Inter-frame Similarity for Low-power Object Recognition in Video Frames 

Dongjoo Shin, Injoon Hong, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), June 2014

Research Interest

- Lower-power Wearable Healthcare System

- Planar Fashionable Circuit Board (P-FCB)

Education

2019. 2      Ph.D. in EE, Korea Advanced Institute of Science and Technology

2015. 2      M.S. in EE, Korea Advanced Institute of Science and Technology

2013. 2      B.S. in EE, Korea Advanced Institute of Science and Technology

2009. 2      Kyonggi Science High School

Awards & Scholarship

BIOGRAPHY

- International Journal Papers

Sticker-Type Hybrid Photoplethysmogram Monitoring System Integrating CMOS IC With Organic Optical Sensors

Yongsu Lee, Hyeonwoo Lee, Jaeeun Jang, Jihee Lee, Minseo Kim, Jaehyuk Lee, Hyunki Kim, Seunghyup Yoo, and Hoi-Jun Yoo

IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS)

- International Conference Papers

A 274μW Clock Synchronized Wireless Body Area Network IC with Super-Regenerative RSSI for Biomedical Ad-Hoc Network System

Yongsu Lee and Hoi-jun Yoo

The 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Jul. 2017 (Accepted)

Sticker-type ECG/PPG Concurrent Monitoring System Hybrid Integration of CMOS SoC and Organic Sensor Device

Yongsu Lee, Hyeonwoo Lee, Seunghyup Yoo, and Hoi-jun Yoo

The 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Aug. 2016

A 141μW Sensor SoC on OLED/OPD Substrate for SpO2/ExG Monitoring Sticker

Yongsu Lee, Hyunwoo Lee, Jaeeun Jang, Jihee Lee, Minseo Kim, Jaehyuk Lee, Hyunki Kim, Kyoungrog Lee, Kwantae Kim, Hyunwoo Cho, Seunghyup Yoo, and Hoi-jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2016

A 4.84mW 30fps Dual Frequency Division Multiplexing Electrical Impedance Tomography SoC for Lung Ventilation Monitoring System

Yongsu Lee, Kiseok Song, and Hoi-jun Yoo

IEEE Symposia on VLSI Technology and Circuits (SoVC), Jun. 2015

3.8 mW Electrocardiogram (ECG) Filtered Electrical Impedance Tomography IC using I/Q Homodyne Architecture for Breast Cancer Diagnosis

Yongsu Lee, Unsoo Ha, Kiseok Song, and Hoi-jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), June 2014

Research Interest

- Low Power Sensor for Wearable Healthcare System

Education

2019. 2      Ph.D. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2016. 2      M.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2014. 2      B.S. in Semiconductor System Engineering, Sung Kyun Kwan University

2008. 2      Gyungnam Science High School

BIOGRAPHY

- International Journal Papers

A 1.4-mΩ-Sensitivity 94-dB Dynamic-Range Electrical Impedance Tomography SoC and 48-Channel Hub-SoC for 3-D Lung Ventilation Monitoring System

Minseo Kim, Hyunki Kim, Jaeeun Jang, Jihee Lee, Jaehyuk Lee, Jiwon Lee, Kyoungrog Lee, Kwantae Kim, Yongsu Lee, Kyuho Jason Lee, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC)

A 82nW Chaotic-Map True Random Number Generator Based on a Sub-Ranging SAR ADC

Minseo Kim, Unsoo Ha, Kyuho Jason Lee, Yongsu Lee, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC)

- International Conference Papers

Wearable 3D Lung Ventilation Monitoring System with Multi Frequency Electrical Impedance Tomography

Minseo Kim, Joonsung Bae, Hoi-Jun Yoo

IEEE International Conference on Biomedical Circuits and Systems (BioCAS), Oct. 2017

A 1.4 mΩ Sensitivity 94-dB Dynamic Range Electrical Impedance Tomography SoC and 48-Channel Hub SoC for 3D Lung Ventilation Monitoring System

Minseo Kim, Hyunki Kim, Jaeeun Jang, Jihee Lee, Jaehyuk Lee, Jiwon Lee, Kyoungrog Lee, Kwantae Kim, Yongsu Lee, and Hoi-Jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2017

A 82nW Chaotic-Map True Random Number Generator Based on Sub-Ranging SAR ADC

Minseo Kim, Unsoo Ha, Yongsu Lee, Kyuho Lee and Hoi-Jun Yoo

European Solid-State Circuits Conference (ESSCIRC), Oct. 2016

A 24-mW 28-Gb/s Wireline Receiver with Low-frequency Equalizing CTLE and 2-tap Speculative DFE

Minseo Kim, Joonsung Bae, Unsoo Ha, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2015

Research Interest

-  Multicore Architecture Processor

-  Image Processing Hardware Accelerator

Education

2019. 8      Ph.D. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2015. 8      M.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2013. 8      B.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2010. 2      Korea Science Academy
 

Awards

BIOGRAPHY

- International Journal Papers
  

A 9.52 ms Latency, and Low-power Streaming Depth-estimation Processor with Shifter-based Pipelined Architecture for Smart Mobile Devices

Sungpill Choi, Kyuho Jason Lee, Youngwoo Kim, and Hoi-Jun Yoo

Journal of Semiconductor Technology and Science(JSTS), June, 2020

- International Conference Papers
  

CNNP-v2:An Energy Efficient Memory-Centric Convolutional Neural Network Processor Architecture

Sungpill Choi, Kyeongryeol Bong, Donghyeon Han, and Hoi-Jun Yoo

International Conference on Artificial Intelligence Circuits and Systems(AICAS), Mar. 2019

A 9.02mW CNN-Stereo based Real-time 3D Hand Gesture Recognition Processor for Smart Mobile Devices 

Sungpill Choi, Jinsu Lee, Kyhoo Lee, and Hoi-jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2018
 

A 34pJ/level·pixel Depth-estimation Processor with Shifter-based Pipelined Architecture for Mobile User Interface

Sungpill Choi, Seongwook Park, and Hoi-Jun Yoo

Asian Solid-State Circuits Conference (ASSCC), Nov. 2016
 

A 124.9fps Memory-Efficient Hand Segmentation Processor for Hand Gesture in Mobile Devices

Sungpill Choi, Seongwook Park, Gyeonghoon Kim, and Hoi-Jun Yoo

International Symposium on Circuit and Systems (ISCAS), May. 2015

Research Interest

- Biomedical System & Low-Power Wireless

Education

2019. 8      Ph.D. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2016. 2      M.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2014. 2      B.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2009. 2      Gyungnam Science High School

BIOGRAPHY

- International Journal Papers
 

Wireless Body-Area-Network Transceiver and Low-Power Receiver With High Application Expandability 

Jaeeun Jang, Jihee Lee, Hyunwoo Cho, Jaehyuk Lee, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Oct. 2020

A Four-Camera VGA-Resolution Capsule Endoscope System With 80-Mb/s Body Channel Communication Transceiver and Sub-Centimeter Range Capsule Localization 

Jaeeun Jang, Jihee Lee, Kyoung-Rog Lee, Jiwon Lee, Minseo Kim, Yongsu Lee, Joonsung Bae, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Oct. 2018

A 540-μW Duty Controlled RSSI with Current Reusing Technique for Human Body Communication

Jaeeun Jang, Yongsu Lee, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), Aug. 2016

- International Conference Papers

A Capsule Endoscope System for Wide Visualization Field and Location Tracking

Jaeeun Jang, Jihee Lee, Kyoung-Rog Lee, Jiwon Lee, Minseo Kim, Yongsu Lee, Joonsung Bae, and Hoi-Jun Yoo

IEEE Biomedical Circuits and Systems (BIOCAS), Oct. 2018

4-Camera VGA Resolution Capsule Endoscope with 80Mb/s Body Channel Communication Transceiver and Sub-cm Range Capsule Localization 

Jaeeun Jang, Jihee Lee, Kyoung-Rog Lee, Jiwon Lee, Minseo Kim, Yongsu Lee, Joonsung Bae, and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2018

A 2.79-mW 0.5%-THD CMOS Current Driver IC for Portable Electrical Impedance Tomography System 

Jaeeun Jang, Minseo Kim, Joonsung Bae, and Hoi-Jun Yoo

Asian Solid-State Circuits Conference (ASSCC), Nov. 2017

A 0.5mW Duty Controlled RSSI with Current Reusing Technique for Human Body Communication

Jaeeun Jang, Yongsu Lee, Hyunwoo Cho, and Hoi-Jun Yoo

International Symposium on Circuit and Systems (ISCAS), May. 2015

Research Interest

- Energy Scalable Vector Processor for Computer Vision

Education

2020. 2      Ph.D. in EE, Korea Advanced Institute of Science and Technology

2001. 8      M.S. in EE, Korea Advanced Institute of Science and Technology

1998. 8      B.S. in Dept. of Physics, Korea Advanced Institute of Science and Technology

BIOGRAPHY

- International Jornal Papers

80 μW/MHz, 850 MHz Fault Tolerant Processor with Fault Monitor Systems

Jinho Han, Youngsu Kwon, Kyeongsun Shin, and Hoi-jun Yoo

Journal of Semiconductor Technology and Science (JSTS), Vol.17, No.5, Oct. 2017

A Fault Tolerant Cache System of Automotive Vision Processor Complying With ISO26262

Jinho Han, Youngsu Kwon, Kyeongjin Byun, and Hoi-jun Yoo

IEEE Transactions on Circuits and Systems II: Express Briefs, Oct. 2016

- International Conference Papers

A 1GHz fault tolerant processor with dynamic lockstep and self-recovering cache for ADAS SoC complying with ISO26262 in automotive electronics  Jin-Ho Han, Youngsu Kwon, Yong Cheol Peter Cho, and Hoi-Jun Yoo 

IEEE Asian Solid-State Circuits Conference(ASSCC), Nov. 2017

A Fault Tolerant Cache of Automotive Vision Processor Complying with ISO26262  Jin-Ho Han, Youngsu Kwon, Kyeonjin Byun, and Hoi-jun Yoo 

IEEE International Symposium on Circuits and Systems(ISCAS), May. 2016

A 40MHZ dedicated hardware H.264/AVC video encoder with the reducing memory access scheme  Sukho Lee, SeongMo Park, Jinho Han, Nakwoong Eum, Jongwon Park

IEEE International Symposium on Consumer Electronics(ISCE), May. 2008

Experience with Retargetable Compilers for a X32V ASIP

Young Soo Kim, Jinho Han, Younghwan Bae, and Hanjin Cho

In Proceedings of Global Signal Processing (GSPx), Sep. 2004.

One chip-low power digital-TCXO with sub-ppm accuracy  Se-Joong Lee, Jin-Ho Han, Seung-Ho Hank, Joe-Ho Lee, Jung-Su Kim, Min-Kyu Je, and Hoi-Jun Yoo 

IEEE International Symposium on Circuits and Systems(ISCAS), May. 2000

Research Interest

- NPU hardware architecture / simulator 

- NPU hardware compiler

Education

2020. 2      Ph.D. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2016. 2      M.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2014. 2      B.S. in EE, Hanyang University

2010. 2      Seoryeong High School

Awards & Scholarship

BIOGRAPHY

- International Journal Papers

UNPU: An Energy-Efficient Deep Neural Network Accelerator with Fully-Variable Weight Bit Precision

Jinmook Lee, Changhyeon Kim, Sanghoon Kang, Dongjoo Shin, Sangyeob Kim and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Oct. 2018

An Energy-efficient Speech Extraction Processor for Robust User Speech Recognition in Mobile Head-mounted Display Systems

Jinmook Lee, Seongwook Park, Injoon Hong, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems II: Express Briefs, May. 2016

- International Conference Papers

An Energy-Efficient Unified Deep Neural Network Accelerator with Fully-Variable Weight Precision for Mobile Deep Learning Applications

Jinmook Lee, Changhyeon Kim, Sanghoon Kang, Dongjoo Shin, Sangyeob Kim, Hoi-Jun Yoo

Hot Chips: Symposium on High Performance Chips, Aug. 2018

A 50.6TOPS/W Energy-Efficient Unified Deep Neural-Network Accelerator with 1-to-16b Fully Variable Bit Precision

Jinmook Lee, Changhyeon Kim, Sanghoon Kang, Dongjoo Shin, Sangyeob Kim, Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2018

A 21mW Low-power Recurrent Neural Network Accelerator with Quantization Tables for Embedded Deep Learning Applications

Jinmook Lee, Dongjoo Shin, and Hoi-Jun Yoo

Asian Solid-State Circuits Conference (ASSCC), Nov. 2017

An 8.3mW 1.6Msamples/s Multi-modal Event-driven Speech Enhancement Processor for Robust Speech Recognition in Smart Glasses

Jinmook Lee, Seongwook Park, Injoon Hong, and Hoi-Jun Yoo

European Solid-State Circuits Conference (ESSCIRC), Oct. 2016

A 3.13nJ/sample Energy-efficient Speech Extraction Processor for Robust Speech Recognition in Mobile Head-mounted Display Systems

Jinmook Lee, Seongwook Park, Injoon Hong, and Hoi-Jun Yoo

International Symposium on Circuit and Systems (ISCAS), May. 2015

Research Interest

- Biomedical Sensor Front-end

Education

2020. 8        Ph.D. Student in EE, Korea ADvanced Institute of Science and Technology (KAIST)

2017. 2        M.S. in EE, Korea ADvanced Institute of Science and Technology (KAIST)

2015. 2        B.S. in EE, ​Korea ADvanced Institute of Science and Technology (KAIST)

2011. 2        Hansung Science High School

BIOGRAPHY

- International Journal Papers

A 36-Channel Auto-Calibrated Front-End ASIC for a pMUT-Based Miniaturized 3-D Ultrasound System 

Jihee Lee, Kyoung-Rog Lee, Benjamin E. Eovino, Jeong Hoan Park, Luna Yue Liang, Liwei Lin, Hoi-Jun Yoo, and Jerald Yoo

IEEE Journal of Solid-State Circuits (JSSC), Early Access. 2021

A 48 μW, 8.88 mW/W Batteryless Wirelessly Power Transferred Body Channel Communication Identification System

Jihee Lee, Yongsu Lee, Hyunwoo Cho, and Hoi-Jun Yoo

Journal of Semiconductor Science and Technology (JSTS)

- International Conference Papers

A Battery-Less 31 mW HBC Receiver with RF Energy Harvester for Implantable Devices

Jihee Lee, Jaeeun Jang, Jaehyuk Lee, and Hoi-Jun Yoo

Asian Solid-State Circuits Conference (ASSCC), Oct. 2019

A 5.37mW/Channel Pitch-Matched Ultrasound ASIC with Dynamic-Bit-Shared SAR ADC and 13.2V Charge-Recycling TX in Standard CMOS for Intracardiac Echocardiography

Jihee Lee, Kyoung-Rog Lee,Benjamin E. Eovino, Jeonghoan Park, Liwei Lin, Hoi-Jun Yoo, and Jerald Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2019

A 48 μW, 8.88×10-3 W/W Batteryless Energy Harvesting BCC Identification System

Jihee Lee, Yongsu Lee, Hyunwoo Cho, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May 2016