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Digital image sensor and noise cancellation operation method

  • US 20080074512A1
  • Filed: 09/27/2006
  • Published: 03/27/2008
  • Est. Priority Date: 09/27/2006
  • Status: Abandoned Application
First Claim
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1. A digital image sensor, comprising:

  • a photo sensor circuit for generating at least one sample-and-hold analog signal;

    an analog-to-digital signal conversion circuit for converting the sample-and-hold analog signal to at least one digital signal;

    a first memory unit connected with the analog-to-digital signal conversion circuit for storing at least one digital reset noise signal of the digital signal;

    a second memory unit connected with the analog-to-digital signal conversion circuit for storing at least one digital image signal of the digital signal; and

    a digital logic correcting circuit receiving the digital reset noise signal and the digital image signal for executing a signal correcting process and outputting at least one image sensor signal.

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