METHOD AND APPARATUS FOR OPTIMAL ALLOCATION OF OPERATING POWER ACROSS MULTIPLE POWER DOMAINS OF A HANDHELD DEVICE
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Apr 23, 2010
filing date -
Apr 23, 2010
priority date (Note) -
Abandoned
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Abstract
A method and apparatus for power management in a handheld device having various power domains, including an attachable/detachable peripheral device. The power source has an available power amount. The method comprises receiving an indication of a power management event at the handheld device related to operation of a power domain, identifying a predetermined power signature associated with operation of the power domain, determining whether the available power amount is sufficient to operate the power domain in accordance with the predetermined power signature, reducing a power state of another functional upon determining that the available power is insufficient, and allocating the reduced power amount to the first power domain of the handheld device for operation according to the predetermined power signature.
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