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:
Apr. 19, 2016
Filed:
Mar. 15, 2013
Applicant:
Rambus Inc., Sunnyvale, CA (US);
Inventors:
Assignee:
Rambus Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/353 (2011.01); H04N 5/235 (2006.01); H04N 5/232 (2006.01); H04N 5/355 (2011.01); H04N 5/376 (2011.01);
U.S. Cl.
CPC ...
H04N 5/3535 (2013.01); H04N 5/2353 (2013.01); H04N 5/2327 (2013.01); H04N 5/35581 (2013.01); H04N 5/3765 (2013.01);
Abstract
Methods and systems for increasing the effective dynamic range of an image sensor are disclosed. Each pixel in the sensor is exposed for a respective first exposure time. Each pixel's response to the respective first exposure is measured and compared to threshold values. Based on the pixel's response to the respective first exposure time, an optimal exposure is calculated for each pixel. The optimal exposure time is applied to each pixel by utilizing row-enabled and column-enabled signals at each pixel within the sensor.