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:
Mar. 20, 2018
Filed:
Dec. 19, 2016
Applicant:
Silead, Inc., Shanghai, CN;
Inventors:
Taiyi Cheng, Shanghai, CN;
Xianggui Zhao, Shanghai, CN;
Assignee:
SILEAD, INC., Shanghai, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G01N 27/22 (2006.01); H01L 27/06 (2006.01); H01L 27/092 (2006.01); H03K 17/22 (2006.01); G11C 29/00 (2006.01); H03K 19/003 (2006.01); H01L 29/10 (2006.01);
U.S. Cl.
CPC ...
G06K 9/0002 (2013.01); G01N 27/228 (2013.01); H01L 27/0629 (2013.01); H01L 27/092 (2013.01); H01L 27/0922 (2013.01); H03K 17/223 (2013.01); G11C 29/785 (2013.01); H01L 29/1033 (2013.01); H03K 19/00361 (2013.01); H03K 19/00392 (2013.01);
Abstract
A fingerprint information detection circuit comprises an amplification unit, a source follower unit, a reset unit, and a feedback unit. The amplification unit is coupled to the source follower unit. The reset unit is coupled to both the feedback unit and the amplification unit. The feedback unit and the amplification unit are coupled. The reset unit includes a first transistor and a reset transistor, wherein source and drain electrodes of the first transistor are coupled, wherein one of source and drain electrodes of the reset transistor is coupled to the source and drain electrodes of the first transistor.