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Remote input device

  • US 8,164,566 B2
  • Filed: 05/06/2009
  • Issued: 04/24/2012
  • Est. Priority Date: 05/27/2005
  • Status: Active Grant
First Claim
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1. A system for providing an input value to an electronic device, the system comprising:

  • a light projecting device adapted to project a beam of light with an intensity pattern at a target area;

    a sensor unit adapted to measure a value of the intensity pattern of the beam of light at a location in the target area; and

    a processing unit having logic adapted to determine an input value associated with one of magnitude and direction of relative motion of the intensity pattern, the determination based at least in part on the value of the intensity pattern of the beam of light at the location in the target area.

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