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Dual technology occupancy sensor and method for using the same

  • US 20020175815A1
  • Filed: 05/22/2001
  • Published: 11/28/2002
  • Est. Priority Date: 05/22/2001
  • Status: Active Grant
First Claim
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1. A sensor, adapted to control a lighting circuit, comprising:

  • an infrared energy sensor, adapted to output an infrared energy detection signal indicative of detection or non-detection of infrared energy;

    a microwave energy sensor, adapted to output a microwave energy detection signal indicative of detection or non-detection of microwave energy; and

    a controller, adapted to output a control signal to control activation and deactivation of said lighting circuit in response to a condition of said infrared energy detection signal and a condition of said microwave energy detection signal.

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