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Systems and methods to communicate and control actions using light emitting diodes

  • US 8,957,587 B2
  • Filed: 12/23/2013
  • Issued: 02/17/2015
  • Est. Priority Date: 09/20/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • emitting a modulated signal of light from an illumination source of a first transceiver, the modulated signal of light having a first characteristic;

    detecting, by a second transceiver, a modulated signal of light having the first characteristic from the first transceiver that exceeds a threshold luminosity; and

    activating, in response to the detecting of the modulated signal of light that exceeds the threshold luminosity, an illumination source of the second transceiver to illuminate.

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