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User specific recognition of intended user interaction with a digitizer

  • US 8,686,964 B2
  • Filed: 07/11/2007
  • Issued: 04/01/2014
  • Est. Priority Date: 07/13/2006
  • Status: Active Grant
First Claim
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1. A method for recognition of an intended user interaction with a digitizer, the method comprising:

  • sampling signals obtained on a digitizer;

    detecting touching or hovering of a user interaction;

    computing an amplitude gradient of the signals sampled, wherein the amplitude gradient is a gradient across an area on a digitizer over which the touching or hovering of a user interaction is detected;

    characterizing the amplitude gradient associated with a specific user;

    storing at least one parameter determined by the characterizing; and

    determining if subsequently detected signals comply with the characterizing.

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