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Apparatus and method for varying the timing of a control signal

  • US 4,906,853 A
  • Filed: 03/17/1988
  • Issued: 03/06/1990
  • Est. Priority Date: 03/17/1988
  • Status: Expired due to Term
First Claim
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1. A control apparatus for triggering a periodic pulse at random timessaid apparatus comprisinga timer for variably issuing a periodic pulse in a defined time cycle,a signal generator for variably generating within the defined cycle an output voltage,said generator having a light sensitive component for varying in time the generation of said output voltage in proportion to the intensity of visible light incident on said light sensitive component,and means for applying said generated output voltage to said timer for triggering the issuance of the periodic pulses.

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