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:
Aug. 11, 2020
Filed:
Aug. 16, 2018
Applicant:
Shenzhen Goodix Technology Co., Ltd., Guangdong, CN;
Inventors:
Hsin-Wen Fang, Taipei, TW;
Meng-Ta Yang, Taipei, TW;
Assignee:
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Guangdong, CN;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/20 (2006.01); G06K 9/00 (2006.01); G01R 27/26 (2006.01); G06K 9/03 (2006.01);
U.S. Cl.
CPC ...
G06K 9/0002 (2013.01); G01R 27/26 (2013.01); G06K 9/03 (2013.01);
Abstract
A capacitive sensing system is provided, which includes: a pixel matrix for sensing a plurality of voltage variations generated by pressing of a fingerprint; and a calibration unit coupled to the pixel matrix and used for calibrating the plurality of voltage variation of the pixel matrix according to a control signal generated based on the plurality of voltage variations. The capacitive sensing system according to the present disclosure has advantages of improving the consistency of the voltage variations detected by the pixel units and reducing the occurrence of distortion.