ELECTRONIC DEVICE AND SYSTEM TIME SETTING METHOD THEREOF
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United States of America Patent
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Issued Date -
Oct 18, 2012
app pub date -
Aug 11, 2011
filing date -
Apr 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system time setting function for an electronic device includes a battery module, a clock module, a processing module and a storage module. The battery module includes a battery gauge integrated chip which times in cycles and measuring a remaining battery capacity. The clock module generates a system time T0 when the electronic device is powered on. The processing module obtains and stores an oscillation time T1 and a remaining battery capacity C1 from the gauge integrated chip. The processing module further obtains a current oscillation time T2 and a currently measured remaining battery capacity C2 and calculates the period for which the electronic device has been powered off and further determines the current system Te according to that length of time, the stored system time T0, the current remaining battery capacity C2 and the stored remaining battery capacity C1.
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