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Electronic timer switch with time tracker

  • US 5,160,853 A
  • Filed: 08/08/1988
  • Issued: 11/03/1992
  • Est. Priority Date: 08/08/1988
  • Status: Expired due to Term
First Claim
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1. A programmable switching apparatus for controllably illuminating a light from a power supply, comprising:

  • input device means for providing programming information, said programming information including geographical information comprising a graphical representation of a geographic area divided into a plurality of zones;

    a microprocessor for storing said programming information, for computing an effective switching time responsive to said stored programming information and for comparing said effective switching time to a current time to generate a timing control signal; and

    a switch, responsive to said timing control signal, for receiving input power from the power supply and for coupling said input power to the light.

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