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. 05, 2022
Filed:
Nov. 03, 2020
Applicant:
Smartsens Technology (Hk) Co., Ltd, Kowloon, HK;
Inventors:
Peng Chen, Shanghai, CN;
Yue Li, Shanghai, CN;
Jinjian Hou, Shanghai, CN;
Guanjing Ren, Shanghai, CN;
Yaowu Mo, Shanghai, CN;
Assignee:
SmartSens Technology (HK) Co. Ltd., Kowloon, HK;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/357 (2011.01); H01L 27/146 (2006.01); H04N 5/355 (2011.01); H04N 5/3745 (2011.01); H04N 5/369 (2011.01);
U.S. Cl.
CPC ...
H04N 5/357 (2013.01); H01L 27/14603 (2013.01); H01L 27/14612 (2013.01); H01L 27/14636 (2013.01); H04N 5/3559 (2013.01); H04N 5/3698 (2013.01); H04N 5/37457 (2013.01);
Abstract
An image sensor pixel noise suppression circuit having a source follower transistor based pixel circuit, a power supply voltage and noise mirror circuit, a power supply voltage and noise gain circuit, and a comparator circuit. An output of the comparator circuit provides an image related output signal wherein the noise component of the source follower signal has been suppressed. The invention further includes a CMOS image sensor containing the image sensor pixel noise suppression circuit.