Title:
CIRCUIT FOR REMOVING COMMON MODE NOISE AND TOUCH SENSOR COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/114428
Kind Code:
A1
Abstract:
The present invention relates to a circuit for removing common mode noise, comprising: a first buffer for receiving a first input current from a first touch electrode; a first current mirror unit which generates a first output current and a second output current that has the same magnitude as the first input current, and outputs the first output current and the second output current through a first output terminal and a second output terminal, respectively; a second buffer for receiving a second input current from the second touch electrode; a second current mirror unit which generates a third output current and a fourth output current that have the same magnitude as the second input current, and outputs the third output current and the fourth output current through the first output terminal and the second output terminal, respectively; and a charge amplification unit including a first input terminal and a second input terminal.
Inventors:
LEE MIN JAE (KR)
SEONG SI HEON (KR)
SEONG SI HEON (KR)
Application Number:
PCT/KR2021/007760
Publication Date:
June 02, 2022
Filing Date:
June 21, 2021
Export Citation:
Assignee:
ACONIC INC (KR)
GWANGJU INST SCIENCE & TECH (KR)
GWANGJU INST SCIENCE & TECH (KR)
International Classes:
G06F3/041; G06F3/044; H01L27/32
Foreign References:
| KR20200080830A | 2020-07-07 | |||
| KR102057050B1 | 2019-12-18 | |||
| KR20130028628A | 2013-03-19 | |||
| KR20170094874A | 2017-08-22 | |||
| US20190050087A1 | 2019-02-14 | |||
| KR102262795B1 | 2021-06-09 |
Attorney, Agent or Firm:
KIM, Hyun Soo et al. (KR)
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