×

Signal processing circuit, image sensor IC, and signal processing method

  • US 20040195491A1
  • Filed: 02/23/2004
  • Published: 10/07/2004
  • Est. Priority Date: 02/26/2003
  • Status: Active Grant
First Claim
Patent Images

1. A signal processing circuit, comprising:

  • a sample/hold circuit for sampling an input signal separately inputted for a time interval of the first half and for a time interval of the second half for the time interval of the first half and for holding the inputted signal for the time interval of the second half;

    a subtracter for taking a difference between the sampled and held signal and the inputted signal; and

    a voltage clamp circuit for receiving as its input a signal from the subtracter, wherein the voltage clamp circuit carries out clamping for a part of or all of the time interval of the first half.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×