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IMAGE SENSOR AND IMAGE PROCESSING SYSTEM

  • US 20150181147A1
  • Filed: 09/24/2012
  • Published: 06/25/2015
  • Est. Priority Date: 08/03/2012
  • Status: Active Grant
First Claim
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1. An image sensor, comprising:

  • a Complementary Metal Oxide Semiconductor (CMOS) photosensitive array, a row selection circuit, a column selection circuit and a control signal conversion circuit,wherein the CMOS photosensitive array is adapted for converting optical signals to electrical signals;

    wherein the control signal conversion circuit is adapted for converting a first set of control signals to a second set of control signals, the first set of control signals are adapted for driving a Charge-Coupled Device (CCD) photosensitive array and comprise at least a vertical transfer signal, a horizontal transfer signal, an electronic shutter signal and a readout clock signal, and the second set of control signals comprises at least a column address signal, a row reset control signal and a row readout control signal;

    wherein the row selection circuit is adapted for receiving the row reset control signal and the row readout control signal, generating a row reset signal according to the row reset control signal, and generating a row readout signal according to the row readout control signal, wherein the row reset signal is adapted for controlling a reset operation of each row of the CMOS photosensitive array, and the row readout signal is adapted for controlling a readout operation of each row of the CMOS photosensitive array; and

    wherein the column selection circuit is adapted for receiving the column address signal, performing a column strobe operation on the CMOS photosensitive array under control of the column address signal, and outputting a column readout signal.

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