Method and system for power saving and state retention in an electronic device including a variation table having a plurality of flags
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United States of America Patent
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Jan 10, 2012
Grant Date -
Oct 22, 2009
app pub date -
Dec 19, 2008
filing date -
Apr 17, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and a system for power saving and state retention in an electronic device are provided. The method for power saving and state retention in an electronic device includes recording a state variation of electronic components of a plurality of groups in a second circuit of the electronic device in a variation table stored in memory of a first circuit or the second circuit of the electronic device; before stopping providing power to the second circuit, selecting some groups from the plurality of groups according to the variation table and making a backup of states of electronic components of the selected groups; and after restoring power to the second circuit, restoring the states of electronic components of the selected groups according to states in the backup.
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