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Dual-use electronic transceiver set for wireless data networks

  • US 6,426,599 B1
  • Filed: 01/26/2001
  • Issued: 07/30/2002
  • Est. Priority Date: 04/14/1999
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a source of visible light capable of providing illumination and electronically detectable variations, the variations in the light effecting data transmission to a receiver and being imperceptible by a human eye; and

    circuitry, including a ballast for modulating the signal output from the source of visible light to effect data transmission, the transmission occurring by means selected from the group consisting of analog FM, discrete pulse code FM with two-level coding, and any other orthogonal bit coding scheme, wherein information is input to the source by a power line transmitter.

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