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. 17, 2021
Filed:
Jun. 19, 2020
Applicant:
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Inventor:
Matthew Powell, San Diego, CA (US);
Assignee:
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/359 (2011.01); H04N 5/3745 (2011.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H04N 5/3595 (2013.01); H04N 5/378 (2013.01); H04N 5/37455 (2013.01);
Abstract
An apparatus of reading out an image sensor having a plurality of pixels arranged in rows and columns includes a plurality of analog-to-digital converters (ADCs) configured to output digital codes representative of received pixel signals of pixels coupled to respective ADCs, and a smear cancellation circuit configured to determine an average value of the digital codes, multiply the average value by a factor to obtain an offset value, and subtract the offset value from the digital codes to obtain smear-cancelled digital codes.