Power-saving processing unit, power-saving processing method...

Details Power-saving processing unit, power-saving processing method... Power-saving processing unit, power-saving processing method...

2008-04-15

2008-04-15

Patel, Nitin C. (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S320000

Reexamination Certificate

active

07360106

ABSTRACT:
A power-saving processing unit is provided which is capable of realizing proper mode switching by taking into account a power consumption as well in a shift processing and a return processing for switching an operation mode. In a power-consumption information table170, there are recorded a power consumption (mJ) which is required for a processing for shifting into a power-saving mode, a consumed power (mW) when an operation is executed in the power-saving mode and a power consumption (mJ) which is required for a processing for returning to an ordinary mode. A time prediction section102refers to a timer-list management queue201and predicts a period of time until the power-saving mode is removed. On the basis of the power-consumption information table170and the predicted time, a mode-switching decision section103compares a power consumption (mJ) when switching is executed into the power-saving mode and a power consumption (mJ) when the switching is not executed, and only if the former is far less than the latter, decides that switching should be executed into the power-saving mode.

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patent: 11-73255 (1999-03-01), None

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