Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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The Transmit Method for Fingerprint sensing using Differential Pulse in Mutual Capacitance Touch Screen Panel for improving security of computer information

컴퓨터의 보안향상을 위한 상호정전용량 터치스크린패널의 차동펄스를 이용한 지문인식을 위한 송신법

  • Kim, Seong Mun (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Choi, Eun Ho (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Ko, Nak Young (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Bien, Franklin (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology)
  • 김성문 (울산과학기술원 전기전자공학과) ;
  • 최은호 (울산과학기술원 전기전자공학과) ;
  • 고낙영 (울산과학기술원 전기전자공학과) ;
  • 변영재 (울산과학기술원 전기전자공학과)
  • Received : 2017.05.29
  • Accepted : 2017.07.03
  • Published : 2017.07.25
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Abstract

This paper is proposed on the transmit Method Finger-Printer Scanning of Mutual Capacitance Touch Screen Panel Using Differential Pulse for improving the security of computer information. This system is composed of differential pulse generator and Ring-Counter, also Supply voltage is 5V. this system generates the Pulse wave which is composed of In-Phase and Out of Phase at 1MHz while period of 2m/s. it is designed and be able to operate four channels. overall power consumption is approximately 78.08nW. This prototype is implemented in 0.25um CMOS Process and Chip area is $870um{\times}880um$.

본 논문은 컴퓨터의 보안향상을 위한 차동펄스를 이용하여 상호정전용양 터치스크린 패널의 지문인식 송신법을 제안한다. 차동펄스생성기와 Ring-Counter로 구성되어 있으며, 공급전압은 5V이다. 제안된 시스템의 출력파형은 In-Phase 와 Out of Phase의 구성되었으며, 2ms의 동안에 1MHz가 포함된 펄스를 출력한다. 4개의 채널을 구동할 수 있는 구조로 설계되었으며 전체 전력소모량은 약 78.08nW 이다. 본 시스템은 TSMC 0.25um CMOS 공정으로 설계 되었고, Chip Area는 $870um{\times}880um$이다.

Keywords

References

  1. Jun-Eun Park, Dong-Hyuk Lim, and Deog-Kyoon Jeong, "A Reconfigurable 40-to-67 dB SNR, 50-to-6400 HzFrame-Rate, Column-Parallel Readout IC for Capacitive Touch-Screen Panels", IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 49, NO. 10, OCTOBER 2014.
  2. Jun-Eun Park, Dong-Hyuk Lim, and Deog-Kyoon Jeong, "A 6.3 mW High-SNR Frame-Rate Scalable Touch Screen Panel Readout IC with Column-Parallel Delta-Sigma ADC Structure for Mobile Devices", 2013 IEEE Asian Solid-State Circuits Conference (A-SSCC)
  3. Hyungcheol Shin1, Seunghoon Ko1, Hongjae Jang1, Ilhyun Yun2, and Kwyro Lee, "55dB SNR with 240Hz Frame Scan Rate Mutual Capacitor $30{\times}24$ Touch-Screen Panel Read-Out IC Using Code-Division Multiple Sensing Technique", 2013 IEEE International Solid-State Circuits Conference, February 20, 2013.
  4. Y. S. Yoo, B. D. Choi, "Touch Controller Circuit for Information Transmission through Mutualcapacitive Touch Screen", 2015 The Institute of Electronics and Information Engineers(IEIE) Fall Conference, November 27-28, 2015.
  5. S. H. Heo, H. G. Ma, J. H. Song, K. M. Park, E. H. Choi, J. J. Kim and Franklin Bien, "72 dB SNR, 240Hz Frame Rate Readout IC with Differential Continuous-Mode Parallel Architecture for Larger Touch-Screen Panel Application", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS-I: REGULAR PAPERS, VOL. 63, NO. 7, JULY 2016.