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:
Jan. 09, 2024
Filed:
Jul. 20, 2022
Applicant:
Omnivision Technologies, Inc., Santa Clara, CA (US);
Inventors:
Boyd Fowler, Sunnyvale, CA (US);
Andreas Suess, San Jose, CA (US);
Assignee:
OmniVision Technologies, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 25/67 (2023.01); H04N 25/671 (2023.01); G06F 17/12 (2006.01); H04N 25/772 (2023.01);
U.S. Cl.
CPC ...
H04N 25/671 (2023.01); G06F 17/12 (2013.01); H04N 25/772 (2023.01);
Abstract
A method for estimating a signal charge collected by a pixel of an image sensor includes determining an average bias that depends on the pixel's floating-diffusion dark current and pixel-sampling period. The method also includes determining a signal-charge estimate as the average bias subtracted from a difference between a weighted sum of a plurality of N multiple-sampling values each multiplied by a respective one of a plurality of N sample-weights.