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Actively-illuminated accessory

  • US 4,973,835 A
  • Filed: 11/30/1989
  • Issued: 11/27/1990
  • Est. Priority Date: 11/30/1989
  • Status: Expired due to Fees
First Claim
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1. An accessory utilizing a light emitter, comprising:

  • said light emitter, arranged near a transparent body, for intermittently emitting light upon reception of an electrical signal;

    first pulse generator for generating a first pulse signal at a relatively short pulse interval;

    photo detector for detecting light incident on said transparent body and generating a light detection signal;

    second pulse generator for generating a second pulse signal at a relatively long pulse interval; and

    signal processor for receiving the first pulse signal, the second pulse signal, and the light detection signal and supplying the electrical signal to said light emitter at a predetermined timing.

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