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Touch panel and noise reducing method therefor

  • US 8,493,343 B2
  • Filed: 09/22/2009
  • Issued: 07/23/2013
  • Est. Priority Date: 04/22/2009
  • Status: Active Grant
First Claim
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1. A method for reducing noise of a touch panel, the method comprising:

  • generating a detection signal having at least two pulses corresponding to at least one contact portion of the touch panel;

    unifying adjacent pulses of the at least two pulses to constitute a wider pulse than each pulse of the adjacent pulses before the unification when an interval between the adjacent pulses is less than an effective-noise distance; and

    generating a final detection signal by removing the unified pulses from the detection signal.

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