Power-Saving Device and Method
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United States of America Patent
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N/A
Issued Date -
Mar 4, 2010
app pub date -
Aug 17, 2009
filing date -
Sep 3, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A power-saving device and method are applicable to a first electronic device having at least one connection interface, and the first electronic device is coupled to a second electronic device via a bus. The power-saving device includes a detection circuit, a power control circuit, and a connection control circuit. The detection circuit is coupled to the connection interface, to detect a load state of the connection interface and generate a detection signal. The power control circuit controls power supplied to the first electronic device via the bus in response to a state of the detection signal. The connection control circuit controls a connection state of the bus according to the detection signal.
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