07050094 is referenced by 10 patents and cites 10 patents.

Wide dynamic range operation is used to write a signal in a freeze-frame pixel into the memory twice, first after short integration and then after long integration. The wide dynamic range operation allows the intra-scene dynamic range of images to be extended by combining the image taken with a short exposure time with the image taken with a long exposure time. A freeze-frame pixel is based on voltage sharing between the photodetector PD and the analog memory. Thus, with wide dynamic range operation, the resulting voltage in the memory may be a linear superposition of the two signals representing a bright and a dark image after two operations of sampling.

Title
Wide dynamic range operation for CMOS sensor with freeze-frame shutter
Application Number
10/53110
Publication Number
7050094 (B2)
Application Date
October 26, 2001
Publication Date
May 23, 2006
Inventor
Alexander I Krymski
Montrose
CA, US
Agent
Dickstein Shapiro Morin & Oshinsky
Assignee
Micron Technology
ID, US
IPC
H04N 5/235
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