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  In these days, personal mobile devices such as smart phones or PDAs are widely used in daily life, and proximity communication between them also becomes popular to conveniently transmit video, audio, graphics, or text-type data. Since their data file size is usually large, the proximity communication in mobile devices should satisfy more stringent requirements. It should support high-speed communication, and low energy consumption, and centimeter-range communication distance guarantee between mobile devices.
  In this project, a low energy inductive coupling transceiver based on Transmission Time Control (TTC) and Adaptive Gain Control (AGC) scheme and Differential Detection Method (DDM) is proposed. This transceiver consumes only 0.825pJ/b at 50Mbps receiving mode (0.475pJ/b in transmitting mode) with up to 7cm communication distance.

Proximity Communication in Daily Life

Proposed Proximity Communication Concept

Chip Photography, Performance Summary and Comparison

Measurement Result

Related Papers

  - A-SSCC 09 [pdf]

  - JSSC 10 [pdf]

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