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IMAGE JAGGEDNESS FILTER FOR DETERMINING WHETHER TO PERFORM BASELINE CALCULATIONS

  • US 20090174688A1
  • Filed: 09/25/2008
  • Published: 07/09/2009
  • Est. Priority Date: 01/04/2008
  • Status: Active Grant
First Claim
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1. A method of delaying a periodic baseline adjustment of sensor outputs on a touch sensor panel until objects having a high spatial frequency have been substantially removed from the touch sensor panel, comprising:

  • computing a jaggedness measure for the touch sensor outputs; and

    delaying or performing the periodic baseline adjustment of the sensor outputs based at least in part on the jaggedness measure.

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