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Finger gesture recognition for touch sensing surface

  • US 8,184,102 B2
  • Filed: 12/17/2008
  • Issued: 05/22/2012
  • Est. Priority Date: 12/17/2008
  • Status: Active Grant
First Claim
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1. A method for recognizing a finger gesture on a touch sensing surface, comprising:

  • monitoring a finger movement on a touch sensing surface based on position data of a finger contacting the touch sensing surface;

    generating direction data associated with the finger movement when the finger movement travels for more than a threshold distance, wherein the direction data corresponds to a plurality of predetermined directions, wherein said generating the direction data comprises;

    determining a primary direction of the finger movement each time the finger movement travels for more than the threshold distance, wherein the primary direction is one of the plurality of predetermined directions;

    after each time the finger movement travels for more than the threshold distance, determining whether there is a change in direction of the finger movement;

    storing the direction of the finger movement each time the finger movement travels more than the threshold distance; and

    counting each time the finger movement changes in direction; and

    selecting from a plurality of preconfigured finger gestures using the stored finger movement directions and the finger direction change count to determine a finger gesture which corresponds to the finger movement.

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