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COORDINATE POSITION DETECTION APPARATUS

  • US 20140125628A1
  • Filed: 06/04/2012
  • Published: 05/08/2014
  • Est. Priority Date: 06/08/2011
  • Status: Active Grant
First Claim
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1. A coordinate position detection apparatus, comprising:

  • a first sensor electrode;

    a first capacitance detector connected with the first sensor electrode and including an integration circuit;

    a second sensor electrode;

    a second capacitance detector connected with the second sensor electrode and including an integration circuit;

    a coordinate computing unit; and

    a coordinate pointing device,wherein, when the apparatus is in a first input mode where the coordinate pointing device inputs a coordinate position,a plurality of first and second capacitance detectors are configured to detect a signal provided by the coordinate pointing device,the coordinate pointing device performs charging and the plurality of first and second capacitance detectors perform integration during a unit detection period to measure capacitances, andbased on the capacitances, the coordinate computing unit determines the coordinate position.

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