Power-switching mechanism for electronic device
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United States of America Patent
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Jan 17, 2006
Grant Date -
May 26, 2005
app pub date -
Nov 22, 2003
filing date -
Nov 22, 2003
priority date (Note) -
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Abstract
A power-switching mechanism for an electronic device in one embodiment of the invention is disclosed that includes a control input and switching device. The control input is connectable to a conductor of a connection between the electronic device and a host device. The switching device is capable of coupling a power source to a power supply. The switching device is controlled by the control input, such that the switching device connects the power source to the power supply when a voltage is present on the conductor, and the switching device disconnects the power supply from the power source when the voltage is absent on the conductor.
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