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Method, apparatus and system for power management through backlight and other peripheral controls

  • US 9,250,691 B2
  • Filed: 12/09/2010
  • Issued: 02/02/2016
  • Est. Priority Date: 12/09/2010
  • Status: Active Grant
First Claim
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1. A method for power management in a mobile computing device comprising:

  • activating a display in said mobile computing device such that a first amount of power is drawn from a power supply of said mobile computing device;

    maintaining a timer for measuring periods of inactivity at said mobile computing device;

    said timer configured to deactivate said display when said timer reaches a predefined threshold;

    initiating a data transfer operation to retrieve content for presentation on said display;

    in response to said initiating, advancing said timer to said predefined threshold by setting said timer to a value greater than a current period of inactivity, to deactivate said display such that a second amount of power is drawn from said power supply, said second amount being less than said first amount;

    during retrieval of said content, detecting a flag in said content indicating that a predefined portion of said content has been downloaded, said flag at a location in said content that indicates the predefined portion being downloaded, the flag comprising a warning that download of said content is complete or nearly complete;

    in response to said detecting, automatically reactivating said display; and

    automatically activating at least one of a light emitting diode indicator, a speaker, or a haptic output device in response to said detecting;

    wherein;

    said data transfer operation is for retrieving said content from a remote computing apparatus connected to said mobile computing device;

    said remote computing apparatus is at least one of a server connected to said computing device via a network and said data transfer operation is a download from said server;

    another computing device connected via a peer-to-peer connection to said computing device;

    a storage device locally connectable to said computing device;

    said display comprises a backlight and said activating comprising activating said backlight and said deactivating comprises deactivating said backlight; and

    said data transfer operation comprises at least one of a file transfer, an application installation, playing an audio file, implementing a device boot-up sequence, and installation of a device theme.

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