Object position detector with edge motion feature and gesture recognition

  • US 7,109,978 B2
  • Filed: 03/26/2004
  • Issued: 09/19/2006
  • Est. Priority Date: 06/08/1992
  • Status: Expired due to Fees
First Claim
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1. A method of processing a user input received on a capacitive touch sensor pad including a matrix of X and Y conductors, the method comprising the steps of:

  • developing capacitance profiles in one of an X direction and a Y direction from said matrix of X and Y conductors, said capacitance profiles identifying a simultaneous presence of at least two user input objects on said capacitive touch sensor pad;

    examining said capacitance profiles to determine an occurrence of a single gesture resulting from the simultaneous presence of the at least two user input objects; and

    indicating the occurrence of said single gesture resulting from said simultaneous presence of the at least two user input objects.

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