The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Sep. 13, 2018
Shenzhen Goodix Technology Co., Ltd., Guangdong, CN;
Hsin-Wen Fang, Taipei, TW;
Kuo-Hao Chao, Taipei, TW;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
A fingerprint identification system is provided, which includes: a plurality of first pixel circuits; a first sensing circuit for outputting a first output signal; at least one second pixel circuit; a second sensing circuit for outputting a second output signal, wherein the second sensing circuit includes a second integration circuit having a second integral input terminal; a second calibration circuit coupled to the second integral input terminal; a third calibration circuit coupled to the second integral input terminal, wherein the second calibration circuit and the third calibration circuit are used for calibrating the second output signal; and a differential amplifier circuit coupled to the first sensing circuit and the second sensing circuit and used for generating an amplified output signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile