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Method and apparatus for sensing image

  • US 6,765,703 B1
  • Filed: 09/27/2000
  • Issued: 07/20/2004
  • Est. Priority Date: 09/27/2000
  • Status: Expired due to Term
First Claim
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1. An image reading apparatus comprising:

  • a line sensor unit including a monochromatic sensor for outputting a one-line signal by dividing the signal into a plurality of signals, and a plurality of color sensors;

    a mode setting circuit for setting one of a monochromatic mode and a color mode;

    a monochromatic analog-to-digital converter which corresponds to said monochromatic sensor and receives signals and performs analog-to-digital conversion for the received signals;

    a plurality of color analog-to-digital converters which correspond to said plurality of color sensors and receive signals and perform analog-to-digital conversion for the received signals; and

    a selector for distributing, when the monochromatic mode is set in said mode setting circuit, the plurality of output signals from said monochromatic sensor to said monochromatic analog-to-digital converter and said color analog-to-digital converters to cause said monochromatic and color analog-to-digital converters to perform analog-to-digital conversion for the signals.

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