Proximity detector in handheld device

  • US 8,612,856 B2
  • Filed: 02/13/2013
  • Issued: 12/17/2013
  • Est. Priority Date: 07/30/2004
  • Status: Active Grant
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First Claim
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1. A proximity detection system, comprising:

  • one or more proximity sensing surfaces;

    a plurality of proximity sensors configured for generating a plurality of proximity sensing fields over at least a portion of the one or more proximity sensing surfaces, each proximity sensing field having a sensing field height for sensing an object over the one or more proximity sensing surfaces; and

    a processor communicatively coupled to the plurality of proximity sensors, the processor capable ofperforming a first operation when one or more objects are detected by a first proximity sensing field having a first sensing field height, andperforming a second operation when one or more objects are detected by a second proximity sensing field having a second sensing field height.

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