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System and method for determining user input from occluded objects

  • US 9,001,070 B2
  • Filed: 10/13/2011
  • Issued: 04/07/2015
  • Est. Priority Date: 12/09/2010
  • Status: Active Grant
First Claim
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1. A processing system for a capacitive input device configured to sense in a sensing region, the processing system comprising:

  • a determination module configured to;

    determine if a sensed object includes an occluded portion using an image representative of sensor values;

    determine a portion of the image corresponding to the sensed object; and

    determine when the sensed object includes the occluded portion based at least in part on a number of sensor values corresponding to both the sensed object and a second sensed object proximate to the sensed object;

    generate a boundary representation which approximates a contact area corresponding to the sensed object, wherein the boundary representation encompasses at least part of the occluded portion of the sensed object and at least part of a non-occluded portion of the sensed object when the sensed object includes the occluded portion.

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