Device enumeration current reduction

Details Device enumeration current reduction Device enumeration current reduction

2005-11-08

2005-11-08

Browne, Lynne H. (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000

Reexamination Certificate

active

06963986

ABSTRACT:
A method of enumerating a peripheral device preferably includes initiating operation of the device in a low-power mode. Power can be conserved, for instance, by slowing processor speed or by shutting off clocks to one or more unneeded blocks of the peripheral device during enumeration. During enumeration, a host computer preferably obtains enumeration information from the peripheral device and then uses that information to select a configuration state for operating the device following enumeration.

REFERENCES:
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patent: 6141762 (2000-10-01), Nicol et al.
patent: 6633932 (2003-10-01), Bork et al.
patent: 6665802 (2003-12-01), Ober
Ron Sartore, Steve Larky and Cathal Phelan, “Speed Power Efficient USB Method,” Jun. 9, 2000, Serial No. 09/590,831, pp. 1-18.

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