Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2006-04-04
2006-04-04
Elamin, A. (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
C713S320000, C713S321000, C713S322000, C713S323000, C713S324000
Reexamination Certificate
active
07024569
ABSTRACT:
A method and apparatus for supplying auxiliary power to a peripheral is disclosed. The method includes supplying power from a first USB port of a host device to an input USB port of a USB hub device, supplying power through a downstream USB port of the USB hub device for use by a downstream USB device, supplying auxiliary power through a power output port of the USB hub device for use by a peripheral device that is coupled to an upstream port and supplying power from a second USB port of the host device to the peripheral device. The power received by the peripheral device is sufficient for its operation.
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Chang Jeff
Wright David G.
Cypress Semiconductor Corp.
Elamin A.
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