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Abstract

An image sensor and an image processing system. The image sensor comprises: a CMOS photosensitive array used for converting an optical signal into an electrical signal; a control signal conversion circuit used for converting into a second control signal a first control signal for driving a CCD photosensitive array to operate, the first control signal at least comprising a vertical transfer signal, a horizontal transfer signal, an electronic shutter signal and a read-out clock signal, and the second control signal at least comprising a column address signal, a row reset control signal and a row read-out control signal; a row selection circuit used for generating a row reset signal according to the row reset control signal and generating a row read-out signal according to the row read-out control signal; and a column selection circuit used for conducting column gating on the CMOS photosensitive array under the control of the column address signal and outputting a column read-out signal. The technical solution of the present invention achieves the compatibility substitution of a CCD image sensor and a CMOS image sensor.

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First Claim