LED light dongle communication system

  • US 8,687,965 B2
  • Filed: 05/23/2008
  • Issued: 04/01/2014
  • Est. Priority Date: 05/24/2007
  • Status: Active Grant
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First Claim
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1. A light emitting diode (LED) light communication device comprising:

  • a housing;

    at least one optical transceiver comprising at least one LED and at least one photodetector, wherein the at least one LED and the at least one photodetector are isolated from emitter-receiver feedback; and

    a universal serial bus interface in communication with said at least one optical transceiver,said optical transceiver being constructed and arranged for engagement to, and communication with, an electronic device,said optical transceiver being further constructed and arranged for transmission of at least one transmitted light signal and receipt of at least one received light signal,said at least one transmitted light signal and said at least one received light signal being observable to the unaided eyes of an individual,said at least one received light signal being observable to the unaided eyes of said individual as illumination,said at least one transmitted light signal and said at least one received light signal each comprising a plurality of rapid flashes of light, said rapid flashes of light having a frequency which is not observable to the unaided eyes of said individual, wherein said rapid flashes of light are configured for transmission of information or data said information or data comprising at least one optical transceiver location identifier and at least one destination optical transceiver location identifier.

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