System and method for conserving power for devices

  • US 9,380,249 B2
  • Filed: 03/11/2010
  • Issued: 06/28/2016
  • Est. Priority Date: 03/11/2010
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a sensor that senses movement of the device and outputting a sense signal in response to the movement;

    a motion detect circuit coupled to the output of the sensor, the motion detect circuit receiving the sense signal from the sensor and outputting a power enable signal if the sense signal exceeds a threshold value;

    a power management circuit coupled to the motion detect circuit, the power management circuit receiving the power enable signal from the motion detect circuit (420) and outputting a power signal to initiate a power up mode as a result of receiving the power enable signal; and

    a processing circuit, coupled to the power management circuit and the sensor, the processing circuit, the processing circuit receiving the power signal along with receiving and processing the sense signal,wherein the sense signal, in response to movement, first, initiates the power up mode and, second, provides an input that defines a specific command for a graphic user interface.

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