USB control circuit for saving power and the method thereof

Details USB control circuit for saving power and the method thereof USB control circuit for saving power and the method thereof

2005-09-08

2008-11-04

Elamin, Abdelmoniem (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S310000, C713S321000, C713S322000, C713S323000, C713S330000, C713S340000

Reexamination Certificate

active

07447930

ABSTRACT:
A USB control circuit for saving power and the method thereof employs a first logic circuit to generate a control signal that turns on the power of a transmitting module, so as to enable the transmitting module just before sending data. The above-mentioned USB control circuit and the method thereof also employs a second logic circuit to select the control signal, so as to solve the problem in USB handshaking processes and to provide a selection for changing the control signal.

REFERENCES:
patent: 6460143 (2002-10-01), Howard et al.
patent: 6615301 (2003-09-01), Lee et al.
patent: 6681334 (2004-01-01), Nakamura
patent: 6708278 (2004-03-01), Howard et al.
patent: 7320077 (2008-01-01), Kim

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