Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2011-03-01
2011-03-01
Sohn, Seung C (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C348S308000, C348S313000, C348S294000
Reexamination Certificate
active
07897904
ABSTRACT:
An electronic imager includes a plurality of pixels having photosensors for accumulating charge corresponding to individual pixel values of a sensed image. Each of the pixels includes an anti-blooming function which allows charge in excess of a predetermined amount to be drained from the photosensor thus reducing the charge from the pixel that migrates to adjacent pixels. The imager also includes circuitry which controls the anti-blooming function in response to image intensity to reduce dark current in the imager caused by the anti-blooming function.
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Aptina Imaging Corporation
RatnerPrestia
Sohn Seung C
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