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METHOD OF LOCATING TOUCH POSITION

  • US 20120086672A1
  • Filed: 12/17/2010
  • Published: 04/12/2012
  • Est. Priority Date: 10/08/2010
  • Status: Abandoned Application
First Claim
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1. A method of locating a touch position, adaptable to an optical touch panel, wherein the optical touch panel has a plurality of visible light sensors and a plurality of corresponding invisible light sensors that are arranged as an array, the method comprising:

  • reading sensing signals of the visible light sensors and the invisible light sensors;

    converting the sensing signal of each of the visible light sensors into a first binary code according to a first setting parameter, and converting the sensing signal of each of the invisible light sensors into a second binary code according to a second setting parameter and a third setting parameter; and

    performing a logic AND operation on all the first binary codes and all the second binary codes to obtain a plurality of logic operation values, so as to determine a position touched by a user on the optical touch panel.

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