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Remote control systems that can distinguish stray light sources

  • US 20080121782A1
  • Filed: 11/07/2006
  • Published: 05/29/2008
  • Est. Priority Date: 11/07/2006
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a first plurality of predetermined light sources disposed in an asymmetric substantially linear pattern;

    a photodetector configured to detect light sources and generate photodetector data representative of the detected light sources; and

    a controller configured to identify a derivative pattern of light sources from the photodetector data, wherein the derivative pattern is indicative of the asymmetric substantially linear pattern.

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