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High dynamic range imager with a rolling shutter
   
Document Number
US Patent 7397509
Issued Date
July 8, 2008
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Abstract
A high dynamic range imager operates pixels utilizing at least a short integration period and a long integration period. The pixel reading circuits of the imager are adapted to process pixel signals corresponding to the integration periods in parallel. The pixel signals are converted into digital values in parallel. The digital values are each linear functions of the incident light and therefore suitable for use with conventional color processing algorithms. A pipelined rolling shutter operation may be employed where the short integration period of one row of pixels is performed simultaneously with the long integration period of another row of pixels.
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Number of Claims:
34
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Owner
Published
July 8, 2008
Application Number
10/927,591
Filed
August 27, 2004
US Classification
348/308   348/E5.034 348/E5.091
Int'l Classification
H04N   5/335   (20060101)  
Examiner
Attorney/Law Firm
USPTO Field of Search
348/308   250/208.1  
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