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CMOS IMAGE SENSOR WITH SHARED MULTIPLEXER AND METHOD OF OPERATING THE SAME

  • US 20130120626A1
  • Filed: 01/02/2013
  • Published: 05/16/2013
  • Est. Priority Date: 05/21/2009
  • Status: Active Grant
First Claim
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1. A CMOS image sensor comprising:

  • a pixel array unit for sensing an object, the pixel array unit comprising M pixels and P multiplexers, each of the M pixels being electrically connected to one of the P multiplexers wherein M is a positive integer and P is a positive integer smaller than M;

    a row selection unit, electrically connected to the P multiplexers, for generating a row selection signal; and

    a logic circuit, electrically connected to the P multiplexers, for determining a sensing region corresponding to the object wherein the sensing region comprises N of the M pixels and N is a positive integer smaller than or equal to M, the logic circuit controlling Q multiplexers, which are electrically connected to the N pixels, to transmit the row selection signal to the N pixels wherein Q is a positive integer smaller than or equal to N and smaller than or equal to P.

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