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System and method for selectively activating a communication device

  • US 20080008313A1
  • Filed: 11/24/2004
  • Published: 01/10/2008
  • Est. Priority Date: 11/24/2004
  • Status: Active Grant
First Claim
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1. A handheld communication device, comprising:

  • a display;

    a backlight system for said display;

    a keyboard;

    a microprocessor controlling aspects of said keyboard and display;

    a sensor; and

    a power application operating on said microprocessor to place said device in one of a plurality of power consumption modes by monitoring said sensor for a first signal indicating movement of said device when said device is in both a stationary state and a low power state;

    activating said backlight system upon detection of said first signal to place said device in a higher power state; and

    returning said device to said low power state from said higher power state and deactivating said backlight upon the earlier instance of passing of said preset amount of time or a receipt of a second signal from one or more of said sensor and said keyboard indicating an intent to return to said low power state.

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