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Apparatus using a light sensing system for sensing time modulated information from a light emitting device

  • US 4,329,684 A
  • Filed: 01/15/1980
  • Issued: 05/11/1982
  • Est. Priority Date: 01/16/1979
  • Status: Expired due to Term
First Claim
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1. An electronic control or data transfer system, comprising:

  • an electronic light emitting device;

    means for selectively time modulating the light intensity at one or more selected regions of said light emitting device;

    a manipulable electronic light sensor adapted to be selectively placed at a fixed position in front of said one or more selected regions of said electronic light emitting device; and

    means connected to said light sensor for detecting the time modulation in the sensor output to form a pulse train of time sequential coded information identified with said time modulated light intensity of said selected region of said light emitting device.

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