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Determining a position of an object with respect to a touch screen element

  • US 8,847,900 B2
  • Filed: 10/31/2011
  • Issued: 09/30/2014
  • Est. Priority Date: 08/21/2003
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • receiving one or more first output signals from a first area of a touch-sensitive position sensor, the first area associated with a first set of electrodes, the first output signals corresponding to a first touch by or proximity of an object within the first area of the touch-sensitive position sensor;

    receiving one or more second output signals from a second area of the touch-sensitive position sensor, the second area associated with a second set of electrodes, the second set of electrodes being different than the first set of electrodes, the first set of electrodes associated with the first area and the second set of electrodes associated with the second area sharing at least two electrodes in common, the at least two electrodes in common are coupled by an element, which is shared by and positioned between the first area and the second area, so as to substantially separate the first area from the second area, the second output signals corresponding to a second touch by or proximity of an object within the second area of the touch-sensitive position sensor;

    calculating a first touch-position estimate based on the first output signals;

    calculating a second touch-position estimate based on the second output signals; and

    determining, based at least in part on the first and second touch-position estimates, an intended-touch location with respect to the touch-sensitive position sensor.

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