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Touch sensor effective area enhancement

  • US 20070222766A1
  • Filed: 03/24/2006
  • Published: 09/27/2007
  • Est. Priority Date: 03/24/2006
  • Status: Active Grant
First Claim
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1. A touch sensor device, the touch sensor device comprising:

  • a set of sensing electrodes; and

    an edge electrode set, the edge electrode set consisting of between one to three edge electrodes inclusive, the edge electrode set substantially surrounding a perimeter of the set of sensing electrodes, wherein the set of sensing electrodes is adapted to detect object position proximate the set of sensing electrodes in two dimensions, and wherein the edge electrode set is adapted to detect object position proximate the perimeter of the set of sensing electrodes.

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