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APPARATUS FOR DETECTING POSITION BY INFRARED RAYS AND TOUCH PANEL USING THE SAME

  • US 20130076694A1
  • Filed: 05/22/2012
  • Published: 03/28/2013
  • Est. Priority Date: 09/26/2011
  • Status: Abandoned Application
First Claim
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1. An apparatus for detecting a position by infrared (IR) rays, comprising:

  • a plurality of IR sources configured along a frame for transmitting IR signals in at least two dimensions, and the IR signals in each dimension comprising two sets of IR signals running contrarily in direction;

    a plurality of receivers interlacedly configured with the plurality of IR sources for receiving the IR signals from the corresponding IR sources, wherein when the IR signals in one direction of one dimension are subject to interference, the IR signals in the other direction of the dimension are still measured by the corresponding receivers; and

    a processor electrically coupled to the receivers, wherein when at least one object is set in at least one position within the frame, the processor determines the position according to the coordinates of the receivers and strength variations of the received IR signals.

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