Method and module for power detection and peripheral apparatus using the same
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United States of America Patent
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Jun 19, 2012
Grant Date -
Oct 7, 2010
app pub date -
Sep 4, 2009
filing date -
Apr 3, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A power detection method applied to a peripheral apparatus is provided. The method includes the following steps. First, a power signal is received from a data communication interface. Next, it is determined that whether the power signal is able to drive a main function device of the peripheral apparatus. Then, according to the determination result, the power signal is selectively provided to the main function device to drive the main function device.
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