Method and apparatus for operating an electronic device in a low power mode
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United States of America Patent
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Mar 3, 2009
Grant Date -
Apr 7, 2005
app pub date -
May 28, 2004
filing date -
Sep 18, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic device, such as a hand-held portable computer, is provided with capability to operate an application during a low power mode. During the low power mode, portions of hardware, software, services, and/or other components of the portable computer that are not necessary to the operation of the application is suspended or otherwise deactivated. As each task is performed by the application, the components that are no longer needed for subsequent tasks to be performed by the application are also deactivated and reactivated as needed. The deactivation can be performed in sequence from the highest-level components to the lowest-level components to ensure that components that are needed by other components are not prematurely deactivated. A specific set of events transitions the portable computer out of the low power mode.
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