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Self-powered long-life occupancy sensors and sensor circuits

  • US 6,850,159 B1
  • Filed: 05/10/2002
  • Issued: 02/01/2005
  • Est. Priority Date: 05/15/2001
  • Status: Active Grant
First Claim
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1. A method of coupling a first relay output to a second relay output based on occupancy sensed within a designated area, said method comprising:

  • driving a relay driver into a first state in response to said occupancy sensed within a designated area;

    coupling said first and said second outputs together in response to said driving; and

    powering said driving and said coupling with a non-rechargeable battery providing no more than about 3.6 volts.

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