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System and method for detecting the removal of a controlling device

  • US 9,654,824 B2
  • Filed: 04/30/2012
  • Issued: 05/16/2017
  • Est. Priority Date: 04/30/2012
  • Status: Active Grant
First Claim
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1. A method for using a controllable appliance to determine an inoperable state of a controlling device, the method comprising:

  • using a timer of the controllable appliance to measure a first plurality of timed intervals each having a first predetermined duration;

    causing the controllable appliance to determine if a wireless notification signal has been received from the controlling device during each of the first plurality of timed intervals; and

    when the wireless notification signal has not been received from the controlling device during at least one of the first plurality of timed intervals, causing the controllable appliance to issue a status notification that the controlling device is in an inoperable state.

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