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Track compensation methods and systems for touch-sensitive input devices

  • US 8,400,416 B2
  • Filed: 11/19/2010
  • Issued: 03/19/2013
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A track compensation method for touch-sensitive input devices, for use in an electronic device comprising a touch-sensitive device, comprising:

  • detecting a track corresponding to an input tool on the touch-sensitive device;

    obtaining at least one motion attitude information corresponding to the touch-sensitive device; and

    compensating the track according to the at least one motion attitude information corresponding to the touch-sensitive device, wherein the compensation of the track according to the at least one motion attitude information determination comprises the steps of;

    calculating a space vibration vector corresponding to the touch-sensitive device according to the at least one motion attitude information;

    transforming the space vibration vector into a two-dimensional deviation vector according to a coordination transformation matrix; and

    compensating the track according to the two-dimensional deviation vector according to the following equation;


    CLn=Ln

    P[n]+e,
    wherein CLn is the compensated track,

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