Television – Camera – system and detail – Solid-state image sensor
Reexamination Certificate
2006-02-23
2009-11-24
Ho, Tuan (Department: 2622)
Television
Camera, system and detail
Solid-state image sensor
C348S307000
Reexamination Certificate
active
07623175
ABSTRACT:
Provided are a CMOS image sensor (CIS) type image sensing device for averaging and sub-sampling analog image signals at a variable sub-sampling rate and a method of driving the same. The image sensing device includes: a two-dimensional active pixel sensor (APS) array including pixels arranged in rows and columns; an averaging unit averages reset signals and image signals alternately generated from each of pixels corresponding to odd- numbered and even-numbered rows and columns in based on a predetermined sub-sampling rate in a sub-sampling mode by repeating a method of accumulating, averaging, (and dumping) the reset signals and the image signals, and generating a comparison signal corresponding to a difference between the average of the reset signals and the average of the image signals; and a conventional digital signal output circuit that generates digital signals corresponding to the sub-sampled (averaged) image signals generated from the pixels represented by the comparison signal. The CIS type image sensing device can analog-average image signals output from pixels at a variable sub-sampling rate and carry out a sub-sampling operations for moving pictures, without increasing chip size.
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F. Chau & Assoc. LLC
Ho Tuan
Nguyen Don
Samsung Electronics Co,. Ltd.
LandOfFree
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