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:
Sep. 20, 2011
Filed:
Aug. 31, 2007
Applicants:
Xiaodong Luo, San Jose, CA (US);
Hongli Yang, Saratoga, CA (US);
Inventors:
Xiaodong Luo, San Jose, CA (US);
Hongli Yang, Saratoga, CA (US);
Assignee:
OmniVision Technologies, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/228 (2006.01); H04N 5/235 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image sensor has an array of photo-sensitive pixels and supports a line-by-line read out of rows. In a normal resolution each row has the same nominal gain and exposure time. In a down-sampling mode the exposure times of the rows are varied according to an alternating sequence having at least two different exposure times. During down-sampling, raw pixel data from rows with different exposure times is combined to simultaneously achieve down-sampling and a high dynamic range.