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Pixel circuitry for imaging system

  • US 7,170,041 B2
  • Filed: 07/17/2002
  • Issued: 01/30/2007
  • Est. Priority Date: 07/17/2002
  • Status: Expired due to Term
First Claim
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1. An imaging system, comprising:

  • an output device including a two-dimensional array of pixels;

    an illumination device including two illuminators, each illuminator capable of illuminating an object with a different color; and

    an input device that includes a plurality of pixel devices, each pixel device including;

    a multi-color sensor that provides a first electronic signal representing the object illuminated by one of the two illuminators and a second electronic signal representing the object illuminated by the other of the two illuminators;

    at least one transistor connected to the sensor;

    a first capacitor that is selectively connected to the sensor;

    a second capacitor that is selectively connected to the sensor; and

    a controller that selectively stores the entirety of the first electronic signal in the first capacitor and stores the entirety of the second electronic signal in the second capacitor;

    wherein each pixel device corresponds to a respective pixel in the two dimensional array of pixels.

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