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

-  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

-  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

-  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

-  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

-  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

-  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

-  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

-  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

- Machine Learning Image Processing SoC Design

Education

2020. 8      Ph.D. Student in EE, Korea Advanced Institute of Science and Technology (KAIST)

2016. 8      M.S. in EE, Korea Advanced Institute of Science and Technology (KAIST)

2014. 8      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2010. 2      Kyunggi Science High School

BIOGRAPHY

- International Journal Papers

A CMOS Image Sensor-Based Stereo Matching Accelerator With Focal-Plane Sparse Rectification and Analog Census Transform

Changhyeon Kim, Kyeongryeol Bong, Sungpill Choi, Kyuho Jason Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I: Regular Papers, Dec. 2016

- International Conference Papers

A 2.1TFLOPS/W Mobile Deep RL Accelerator with Transposable PE Array and Experience Compression

Changhyeon Kim, Sanghoon Kang, Donjoo Shin, Sungpill Choi, Youngwoo Kim, and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2019 

An Ultra-Low-Power and Mixed-Mode Event-Driven Face Detection SoC for Always-on Mobile Applications

Changhyeon Kim, Kyeongryeol Bong, Injoon Hong, Kyuho Lee, Sungpill Choi, and Hoi-Jun Yoo

IEEE European Solid-State Circuits Conference (ESSCIRC), Sep. 2017

A 43.7 mW 94 fps CMOS Image Sensor-based Stereo Match-ing Accelerator with Focal-plane Rectification and Analog Census Transformation

Changhyeon Kim, Kyeongryeol Bong, Sungpill Choi, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2016

Research Interest

- Computer HW Architecture

- NPU HW Design

- Intelligent Vision SoC

Education

2020. 8      Ph.D. Student in EE, Korea Advanced Institute of Science and Technology (KAIST)

2017. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2015. 2      B.S. in EE, Yonsei University

2011. 2      Daegu Science High School

Awards

BIOGRAPHY

- International Journal Papers 

The Hardware and Algorithm Co-Design for Energy-Efficient DNN Processor on Edge/Mobile Devices

Jinsu Lee, Sanghoon Kang, Jinmook Lee, Dongjoo Shin, Donghyeon Han, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-1), Sep. 2020

An Energy-Efficient Sparse Deep-Neural-Network Learning Accelerator with Fine-grained Mixed Precision of FP8-FP16
Jinsu Lee, Juhyoung Lee, Donghyeon Han, Jinmook Lee, Gwangtae Park, and Hoi-Jun Yoo

IEEE Solid-State Circuits Letters (SSCL)

A 17.5 fJ/bit Energy-efficient Analog SRAM for Mixed-signal Processing

Jinsu Lee, Dongjoo Shin, Youchang Kim, and Hoi-Jun Yoo

IEEE Transactions on Very Large Scale Integration Systems (TVLSI)

- International Conference Papers

LNPU: An Energy-Efficient Deep-Neural-Network Training Processor with Fine-Grained Mixed Precision 

Jinsu Lee, Juhyoung Lee, Donghyeon Han, Jinmook Lee, Gwangtae Park, and Hoi-Jun Yoo

IEEE Hot Chips: A Symposium on High Performance Chips, Aug. 2019

LNPU: A 25.3TFLOPS/W Sparse Deep-Neural-Network Learning Processor with Fine-Grained Mixed Precision of FP8-FP16

Jinsu Lee, Juhyoung Lee, Donghyeon Han, Jinmook Lee, Gwangtae Park, and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2019

A 31.2pJ/disparity/pixel Stereo Matching Processor with Stereo SRAM for Mobile UI Application

Jinsu Lee, Dongjoo Shin, Kyuho Lee, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (SoVC), Jun 2017

A 17.5 fJ/bit Energy-efficient Analog SRAM for Mixed-signal Processing

Jinsu Lee, Dongjoo Shin, Youchang Kim, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May 2016

Research Interest

- Machine learning based knowledge inference with robotics

- Data mining, integration and cleaning with knowledge base(graph).

Education

2019. 7       Ph.D. in Computer Science, Tsinghua University, Beijing, China

2010.07       M.S. in Computer Science, Tsinghua University, Beijing, China

2007.07       B.S. in Computer Science, Tsinghua University, Beijing, China

BIOGRAPHY

- International Conference Papers
  

Knowledge Base Error Detection with Relation Sensitive Embedding

San Kim, Xiuxing Li, Kaiyu Li, Jianhua Feng, Yan Huang, Songfan Yang

International Conference on Database Systems for Advanced Applications(DASFAA), Apr. 2019

Web Table Understanding by Collective Inference

San Kim, Guoliang Li, Jianhua Feng, Kaiyu Li

International Conference on Information and Knowledge Management(CIKM), Oct. 2018

Research Interest

- Energy-efficient Deep Learning SoC Design

- Intelligent Vision System Development

Education

2023. 8      Ph.D. Student in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2020. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2018. 2      B.S. in EE, POSTECH

2014. 2      Jamsil High School

BIOGRAPHY

- International Journal Papers   

A Mobile 3D Object Recognition Processor with Deep Learning-based Monocular Depth Estimation

Dongseok Im, Gwangtae Park, Zhiyong Li, Junha Ryu, Sanghoon Kang, Donghyeon Han, Jinsu Lee, Wonhoon Park, Hankyul Kwon, and Hoi-Jun Yoo

IEEE MICRO, Mar. 2023

DSPU: An Efficient Deep Learning-Based Dense RGB-D Data Acquisition with Sensor Fusion and 3-D Perception SoC  

Dongseok Im, Gwangtae Park, Junha Ryu, Zhiyong Li, Sanghoon Kang, Donghyeon Han, Junsu Lee, Wonhoon Park, Hankyul Kwon, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), 2022

A Pipelined Point Cloud based Neural Network Processor for 3D Vision with Large-scale Max Pooling Layer Prediction

Dongseok Im, Donghyeon Han, Sanghoon Kang, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jun. 2021

DT-CNN: An Energy-Efficient Dilated and Transposed Convolutional Neural Network Processor for Region of Interest Based Image Segmentation 

Dongseok Im, Donghyeon Han, Sungpill Choi, Sanghoon Kang, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-1), May. 2020

- International Conference Papers

CamPU: A Multi-Camera Processing Unit for Deep Learning-based 3D Spatial Computing Systems 

Dongseok Im, Hoi-Jun Yoo

IEEE/ACM International Symposium on Microarchitecture (MICRO), Nov. 2024

LUTein: Dense-Sparse Bit-slice Architecture with Radix-4 LUT-based Slice-Tensor Processing Units 

Dongseok Im, Hoi-Jun Yoo

IEEE International Symposium on High-Performance Computer Architecture (HPCA), Jan. 2024

Sibia: Signed Bit-slice Architecture for Dense DNN Acceleration with Slice-level Sparsity Exploitation 

Dongseok Im, Gwangtae Park, Zhiyong Li, Junha Ryu, and Hoi-Jun Yoo

IEEE International Symposium on High-Performance Computer Architecture (HPCA), Feb. 2023

DSPU: A 281.6mW Real-Time Deep Learning- Based Dense RGB-D Data Acquisition with Sensor Fusion and 3D Perception System-on-Chip  

Dongseok Im, Gwangtae Park, Junha Ryu, Zhiyong Li, Sanghoon Kang, Donghyeon Han, Jinsu Lee, Wonhoon Park, Hankyul Kwon, and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), Aug. 2022

​A Low-power and Real-time 3D Object Recognition Processor with Dense RGB-D Data Acquisition in Mobile Platforms 

Dongseok Im, Gwangtae Park, Junha Ryu, Zhiyong Li, Sanghoon Kang, Donghyeon Han, Jinsu Lee, Wonhoon Park, Hankyul Kwon, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2022

​DSPU: A 281.6mW Real-Time Depth Signal Processing Unit for Deep Learning- Based Dense RGB-D Data Acquisition with Depth Fusion and 3D Bounding Box Extraction in Mobile Platforms

Dongseok Im, Gwangtae Park, Zhiyong Li, Junha Ryu, Sanghoon Kang, Donghyeon Han, Jinsu Lee, and Hoi-Jun Yoo

International Solid-State Circuits Conference (ISSCC), Feb. 2022

A 4.45 ms Low-latency 3D Point-cloud-based Neural Network Processor for Hand Pose Estimation in Immersive Wearable Devices 

Dongseok Im, Sanghoon Kang, Donghyeon Han, Sungpill Choi, and Hoi-Jun Yoo

Symposium on VLSI Circuits (S. VLSI), Jun. 2020

DT-CNN: Dilated and Transposed Convolution Neural Network Accelerator for Real-time Image Segmentation on Mobile Devices 

Dongseok Im, Donghyeon Han, Sungpill Choi, Sanghoon Kang, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2019

Research Interest

- Deep Learning & AI Algorithm

- Machine Learning based SoC Design

Education

2023. 8      Ph.D. Student in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2020. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2018. 2      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2014. 2      Kyongbuk Science High School

BIOGRAPHY

- International Journal Papers  

C-Transformer: An Energy-Efficient Homogeneous DNN-Transformer/Spiking-Transformer Processor for Language Models

Sangyeob Kim, Sangjin Kim, Wooyoung Jo, Soyeon Kim, Seongyon Hong, Nayeong Lee, Jungwan Lee, Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2025

C-DNN: An Energy-Efficient Complementary Deep-Neural-Network Processor With Heterogeneous CNN/SNN Core Architecture

Sangyeob Kim, Soyeon Kim, Seongyon Hong, Sangjin Kim, Donghyeon Han, Jiwon Choi and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Nov. 2023

COOL-NPU: Complementary Online Learning Neural Processing Unit

Sangyeob Kim, Soyeon Kim, Seongyon Hong, Sangjin Kim, Jiwon Choi, Donghyeon Han, and Hoi-Jun Yoo

IEEE MICRO, Nov. 2023

C-DNN V2: Complementary Deep-Neural-Network Processor with Full-Adder/OR-based Reduction Tree and Reconfigurable Spatial Weight Reuse

Sangyeob Kim, and Hoi-Jun Yoo

IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS), Oct. 2023

Neuro-CIM: ADC-less Neuromorphic Computing-in-Memory Processor with Operation Gating/Stopping and Digital-Analog Networks

Sangyeob Kim, Sangjin Kim, Soyeon Um, Sangjin Kim, Kwantae Kim and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2023

SNPU: An Energy-Efficient Spike Domain Deep-Neural-Network Processor with Two-step Spike Encoding and Shift-and-Accumulation Unit

Sangyeob Kim, Sangjin Kim, Soyeon Um, Sangjin Kim, Juhyoung Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2023

TSUNAMI: Triple Sparsity-aware Ultra Energy-efficient Neural Network Training Accelerator with Multi-modal Iterative Pruning 

Sangyeob Kim, Juhyoung Lee, Sanghoon Kang, Donghyeon Han, Wooyoung Jo, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-1), Jan. 2022

PNPU: An Energy-Efficient Deep-Neural-Network Learning Processor With Stochastic Coarse–Fine Level Weight Pruning and Adaptive Input/Output/Weight Zero Skipping

Sangyeob Kim, Juhyoung Lee, Sanghoon Kang, Jinmook Lee, Wooyoung Jo, and Hoi-Jun Yoo

IEEE Solid-State Circuits Letters (SSCL), Dec. 2020

A Power-Efficient CNN Accelerator With Similar Feature Skipping for Face Recognition in Mobile Devices 

Sangyeob Kim, Juhyoung Lee, Sanghoon Kang, Jinsu Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-1), Jan. 2020

- International Conference Papers

Slim-Llama: A 4.69mW Large-Language-Model Processor with Binary/Ternary Weights for Billion-Parameter Llama Model 

Sangyeob Kim, Jungwan Lee, and Hoi-Jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2025

A Low-power Large-Language-Model Processor with Big-Little Network and Implicit-Weight-Generation for On-device AI 

Sangyeob Kim, Sangjin Kim, Wooyoung Jo, Soyeon Kim, Seongyon Hong, Nayeong Lee and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), May. 2024

Two-Step Spike Encoding Scheme and Architecture for Highly Sparse Spiking-Neural-Network

Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, and Hoi-Jun Yoo

IEEE International Symposium on Circuits and Systems (ISCAS), May. 2024

C-Transformer: A 2.6-18.1μJ/Token Homogeneous DNN-Transformer/Spiking-Transformer Processor with Big-Little Network and Implicit Weight Generation for Large Language Models

Sangyeob Kim, Sangjin Kim, Wooyoung Jo, Soyeon Kim, Seongyon Hong, and Hoi-Jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2024

COOL-NPU: Complementary Online Learning Neural Processing Unit with CNN-SNN Heterogeneous Core and Event-driven Backpropagation

Sangyeob Kim, Soyeon Kim, Seongyon Hong, Sangjin Kim, Donghyeon Han, Jiwon Choi, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Mar. 2023

C-DNN: A 24.5-to-85.8TOPS/W Complementary-Deep-Neural-Network Processor with Heterogeneous CNN/SNN Core Architecture and Forward-Gradient-based Sparsity Generation

Sangyeob Kim, Soyeon Kim, Seongyon Hong, Sangjin Kim, Donghyeon Han, and Hoi-Jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2023

SNPU: Always-on 63.2uW Face Recognition Spike Domain Convolutional Neural Network Processor with Spike Train Decomposition and Shift-and-Accumulation

Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, Juhyoung Lee, and Hoi-Jun Yoo

IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2022

Neuro-CIM: A 310.4TOPS/W Neuromorphic Computing-in-Memory Processor with Low WL/BL activity and Digital-Analog Mixed-mode Neuron Firing 

Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, Kwantae Kim, and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), Aug. 2022

Neuro-CIM: A 310.4TOPS/W Neuromorphic Computing-in-Memory Processor with Low WL/BL activity and Digital-Analog Mixed-mode Neuron Firing 

Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, Kwantae Kim, and Hoi-Jun Yoo

Symposium on VLSI Circuits (S. VLSI), Jun. 2022

PNPU: A 146.52TOPS/W Deep-Neural-Network Learning Processor with Stochastic Coarse-Fine Pruning and Adaptive Input/Output/Weight Skipping 

Sangyeob Kim, Juhyoung Lee, Sanghoon Kang, Jinmook Lee, and Hoi-Jun Yoo

Symposium on VLSI Circuits (S. VLSI), Jun. 2020

A 15.2 TOPS/W CNN Accelerator with Similar Feature Skipping for Face Recognition in Mobile Devices

Sangyeob Kim, Juhyoung Lee, Sanghoon Kang, Jinsu Lee, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2019

Research Interest

- System-on-Chip Design for On-device AI

- Algorithm-Architecture Co-optimization for GenAI Model

- Memory-centric Computing Architecture

Education

2024. 2      Ph.D. in EE, Korea Advanced Insititue of Science and Technology (KAIST) 

2021. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2019. 2      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2014. 2      Gwangju  Science High School

BIOGRAPHY

- International Journal Papers  

Revolver: Low-Bit GenAI Accelerator With Rotation-Based Phase-Aware Quantization 

Sangjin Kim, Jungjun Oh, Byeongcheol Kim, Yuseon Choi, Gwangtae Park, Hoi-jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Sep. 2026

EdgeDiff: Energy-Efficient Multi-Modal Few-Step Diffusion Model Accelerator Using Mixed-Precision and Reordered Group Quantization

Sangjin Kim, Jungjun Oh, Jeonggyu So, Yuseon Choi, Sangyeob Kim, Dongseok Im, Gwangtae Park and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Sep. 2025

LightRot: A Light-weighted Rotation Scheme and Architecture for Accurate Low-bit Large Language Model Inference

Sangjin Kim, Yuseon Choi, Jungjun Oh, Byeongcheol Kim, and Hoi-Jun Yoo

IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS), Apr. 2025

Scaling-CIM: eDRAM In-Memory-Computing Accelerator With Dynamic-Scaling ADC and Adaptive Analog Operation

Sangjin Kim, Soyeon Um, Wooyoung Jo, Jingu Lee, Sangwoo Ha, Zhiyong Li, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Feb. 2024

An Overview of Computing-in-Memory Circuits With DRAM and NVM

Sangjin Kim, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems II (TCAS-II), Nov. 2023

DynaPlasia: An eDRAM In-Memory Computing-Based Reconfigurable Spatial Accelerator With Triple-Mode Cell

Sangjin Kim, Zhiyong Li, Soyeon Um, Wooyoung Jo, Sangwoo Ha, Juhyoung Lee, Sangyeob Kim, Donghyeon Han, and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Oct. 2023

A Low-Power Graph Convolutional Network Processor with Sparse Grouping for 3D Point Cloud Semantic Segmentation in Mobile Devices

Sangjin Kim, Sangyeob Kim, Juhyoung Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-I), Jan. 2022

- International Conference Papers

GyRot: Leveraging Hidden Synergy between Rotation and Fine-grained Group Quantization for Low-bit LLM Inference

Sangjin Kim, Yuseon Choi, Byeongcheol Kim, Jungjun Oh, Hoi-jun Yoo

IEEE International Symposium on High-Performance Computer Architecture (HPCA), Feb. 2026

Revolver: Low-Bit GenAI Accelerator for Distilled-Model and CoT with Phase-Aware-Quantization and Rotation-Based Integer-Scaled Group Quantization 

Sangjin Kim, Jungjun Oh, Byeongcheol Kim, Yuseon Choi, Gwangtae Park, Hoi-jun Yoo

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2026

Multi-modal Few-step Diffusion Model Accelerator with Mixed-Precision and Reordered Group-Quantization for On-device Generative AI

Sangjin Kim, Jungjun Oh, Jeonggyu So, Yuseon Choi, Sangyeob Kim, Dongseok Im, Gwangtae Park, and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), Aug. 2025

EdgeDiff: 418.4mJ/inference Multi-modal Few-step Diffusion Model Accelerator with Mixed-Precision and Reordered Group-Quantization 

Sangjin Kim, Jungjun Oh, Jeonggyu So, Yuseon Choi, Sangyeob Kim, Dongseok Im, Gwangtae Park and Hoi-jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2025

NoPIM: Functional Network-on-Chip Architecture for Scalable High-Density Processing-in-Memory-based Accelerator 

Sangjin Kim, Zhiyong Li, Soyeon Um, Wooyoung Jo, Sangwoo Ha, Sangyeob Kim and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2024

Scaling-CIM: An eDRAM-based In-Memory-Computing Accelerator with Dynamic-Scaling ADC for SQNR-Boosting and Layer-wise Adaptive Bit-Truncation

Sangjin Kim, Soyeon Um, Wooyoung Jo, Jingu Lee, Sangwoo Ha, Zhiyong Li and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Apr. 2023

DynaPlasia: An eDRAM In-Memory-Computing-Based Reconfigurable Spatial Accelerator with Triple-Mode Cell for Dynamic Resource Switching

Sangjin Kim, Zhiyong Li, Soyeon Um, Wooyoung Jo, Sangwoo Ha, Juhyoung Lee, Sangyeob Kim, and Hoi-Jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2023

PNNPU: A Fast and Efficient 3D Point Cloud-based Neural Network Processor with Block-based Point Processing for Regular DRAM Access 

Sangjin Kim, Juhyoung Lee, Dongseok Im, and Hoi-jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), Aug. 2021

PNNPU: A 11.9 TOPS/W High-speed 3D Point Cloud-based Neural Network Processor with Block-based Point Processing for Regular DRAM Access 

Sangjin Kim, Juhyoung Lee, Dongseok Im, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Jun. 2021

A 54.7 fps 3D Point Cloud Semantic Segmentation Processor with Sparse Grouping Based Dilated Graph Convolutional Network for Mobile Devices

Sangjin Kim, Sangyeob Kim, Juhyoung Lee, and Hoi-jun Yoo 

IEEE International Symposium on Circuit and Systems (ISCAS), Oct. 2020

Research Interest

- Deep learning SoC

- Computer vision

Education

2024. 7      Ph.D. in EE, Korea Advanced Insititue of Science and Technology (KAIST) 

2021. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2019. 2      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2015. 2      Daejeon Science High School

BIOGRAPHY

-- International Journal Papers  

An Artifical-Intelligence-based SLAM Processor with Scene-adaptive Sampling and Hybrid NeRF Model Training Acceleration

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems for Artificial Intelligence (TCASAI), July. 2024 

A 1.15 TOPS/W Energy-efficient Capsule Network Accelerator for Real-time 3D Point Cloud Segmentation in Mobile Environment

Gwangtae Park, Dongseok Im, Donghyeon Han, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems II (TCAS-II), Jun. 2020

- International Conference Papers 

Space-Mate: A 303.5mW Real-Time NeRF SLAM Processor with Sparse Mixture-of-Experts-based Acceleration

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee, and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), May. 2024

A Low-power and Real-time Neural-Rendering Dense SLAM Processor with 3-Level Hierarchical Sparsity Exploitation 

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2024

Space-Mate: A 303.5mW Real-Time Sparse Mixture-of-Experts-Based NeRF-SLAM Processor for Mobile Spatial Computing

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee, and Hoi-Jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2024

Research Interest

- Processing In Memory

- Deep Learning SoC

- AI Algorithm

Education

2025. 7      Ph.D. in EE, Korea Advanced Insititue of Science and Technology (KAIST) 

2018. 7      M.S. in IC Engineering, Tsinghua University

2015. 7      B.S. in Microelectronics, Shanghai Jiao Tong University

2011. 6      Shandong Liaocheng No.1 High School

BIOGRAPHY

 - International Journal Papers

Falcon: Event-Driven Hybrid Object Tracking SoC with Bit-Column-Similarity-Based MRAM PIM and Heterogeneous Read-Only-Once Attention Flow

Wenao Xie, Haoyang Sang, Zhamaliddin Kalzhan, Jingu Lee, Jerald Yoo, Kangho Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Apr. 2026

ED-MPIM: An Energy-Efficient Event-Driven Smart Vision SoC With High-Linearity and Reconfigurable MRAM PIM

Wenao Xie, Haoyang Sang, Beomseok Kwon, Dongseok Im, Sangjin Kim, Sangyeob Kim, Kangho Lee and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Jun. 2025

 - International Conference Papers

Silicon-Oracle (Soracle): A Multi-Modal Autoregressive Model Accelerator for Context-Aware Assistance on Mobile Platform

Wenao Xie, Zhongqi Li, Jiaer Chen, Jerald Yoo, and Hoi-Jun Yoo

​IEEE Symposium on VLSI Circuits (S. VLSI), June. 2026

Falcon: An Event-Driven Object Tracking SoC with Activation-Skip and Weight-Compression MRAM PIM and Heterogenous Q/K/V Read-Only-Once Attention Flow

Wenao Xie, Haoyang Sang, Zhamaliddin Kalzhan, Jingu Lee, Jerald Yoo, Kangho Lee and Hoi-Jun Yoo

IEEE European Solid-State Electronics Research Conference (ESSERC), Sep. 2025

A 709.3 TOPS/W Event-Driven Smart Vision SoC with High-Linearity and Reconfigurable MRAM PIM

Wenao Xie, Haoyang Sang, Beomseok Kwon, Dongseok Im, Sangjin Kim, Sangyeob Kim and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Apr. 2023