System for controlling the clock to each of a plurality of...

Details System for controlling the clock to each of a plurality of... System for controlling the clock to each of a plurality of...

2007-05-01

2007-05-01

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

Reexamination Certificate

active

10692743

ABSTRACT:
In an interface control semiconductor integrated circuit including a plurality of protocol circuits for processing a protocol such as AV- or PC-oriented protocols engaged in an IEEE 1394 standard-compliant data transmission, power consumption is reduced. To achieve this, the interface control semiconductor integrated circuit including the protocol circuits is provided with a plurality of switches associated with the respective protocol circuits and each of the switches performs a switching between supply and shut-off of a clock. A clock is supplied to one of the protocol circuits which should be used whereas clock to unused protocol circuits are shut-off, by controlling each of the switches.

REFERENCES:
patent: 6081149 (2000-06-01), Veendrick
patent: 6125452 (2000-09-01), Kuriyama
patent: 6131167 (2000-10-01), Cruz
patent: 6604201 (2003-08-01), Takahashi et al.
patent: 2002/0152346 (2002-10-01), Stone et al.
patent: 2003/0101311 (2003-05-01), Chang et al.
patent: 10-301657 (1998-11-01), None

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