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DISTANCE SENSING CIRCUIT AND TOUCH-CONTROL ELECTRONIC APPARATUS

  • US 20120313891A1
  • Filed: 06/06/2012
  • Published: 12/13/2012
  • Est. Priority Date: 06/08/2011
  • Status: Abandoned Application
First Claim
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1. A distance sensing circuit, comprising:

  • a distance sensing unit, sensing the distance between an object and said distance sensing unit, and generating a first sensing signal;

    a capacitive sensing unit, generating a second sensing signal corresponding to said object; and

    an operation unit, judging the distance between said distance sensing unit and said object according to said first sensing signal and said second sensing signal.

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