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:
Jul. 04, 2017
Filed:
Feb. 23, 2016
Applicant:
Contek Life Science Co., Ltd., Taipei, TW;
Inventors:
Assignee:
CONTEK LIFE SCIENCE CO., LTD., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/20 (2006.01); G06K 9/36 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06K 9/0002 (2013.01); G06K 9/0008 (2013.01); G06K 9/00053 (2013.01);
Abstract
A capacitive fingerprint sensor includes a compensation memory which stores a direct current offset parameter and a gain compensation parameter of each sensing unit of a capacitive sensing array. Therefore, the above-mentioned capacitive fingerprint sensor is able to individually compensate sensing signals measured by each the sensing unit and the sensing signals measured by each sensing unit have better uniformity and signal to noise ratio (SNR).