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Method and apparatus for adjusting an ambient light threshold

  • US 10,159,137 B2
  • Filed: 06/08/2015
  • Issued: 12/18/2018
  • Est. Priority Date: 06/10/2011
  • Status: Active Grant
First Claim
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1. An apparatus for controlling power delivered from a power source to an electrical load in a space, the apparatus comprising:

  • an actuator;

    an occupancy detection circuit for detecting the presence of an occupant in the space;

    an ambient light detector for measuring an ambient light level in the space; and

    a controller configured to;

    control the electrical load in response to actuations of the actuator;

    detect the presence of an occupant in the space based on an output received from the occupancy detection circuit;

    compare a measured ambient light level received from the ambient light detector to an ambient light level threshold;

    determine whether to control the electrical load based on comparing the measured ambient light level to the ambient light level threshold; and

    responsive at least in part to detecting the presence of an occupant;

    detect whether there is an actuation of the actuator; and

    adjust the ambient light level threshold when an actuation of the actuator is detected.

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