Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2002-08-23
2008-10-28
Villecco, John M. (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S294000, C348S301000, C348S308000, C257S292000
Reexamination Certificate
active
07443427
ABSTRACT:
A pixel circuit having an improved dynamic range is disclosed. When incoming light detected by the photodiode is strong, the accumulated (integrated) charge on a signal capacitor becomes large. To compensate, the excess signal component becomes compressed and the pixel circuit begins operating in logarithmic rather than linear mode. In this way, the circuit can achieve a higher dynamic range more closely resembling the image sensing properties of the human eye.
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Dickstein & Shapiro LLP
Micro)n Technology, Inc.
Pasiewicz Daniel M
Villecco John M.
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