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Imager method and apparatus having combined gate signals

  • US 20090237540A1
  • Filed: 03/20/2008
  • Published: 09/24/2009
  • Est. Priority Date: 03/20/2008
  • Status: Abandoned Application
First Claim
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1. An imaging device, comprising:

  • a pixel array having a plurality of pixels arranged in rows and columns, each pixel of the array comprising at least a photosensor;

    a plurality of pixel readout circuits each associated with at least one pixel, the pixel readout circuit comprising;

    a storage node for receiving charges from a photo sensor;

    a reset circuit responsive to a reset control signal for resetting the storage node;

    a circuit for providing an output signal based on charges stored at the storage node;

    a dual conversion gain circuit responsive to a dual conversion gain signal for selectively coupling the storage node to a capacitor; and

    a select line for commonly providing a reset control signal to the reset circuit and a dual conversion gain signal to a dual conversion gain circuit of a different pixel readout circuit.

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