Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2007-11-27
2007-11-27
Lee, Thomas (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
C713S323000
Reexamination Certificate
active
11497467
ABSTRACT:
A dynamic power management system includes an operating system (OS) that causes a processor to operate in one of multiple run states that have different performance and/or power dissipation levels. The OS selects the run state in response to processor information (e.g., processor load) being monitored by the OS. The OS can predict future states of the processor information based on sampled processor information. The OS can take an average of the predicted and actual samples for comparison with a threshold to select a run state. The OS can track the number of consecutive saturated samples that occur during a selected window of samples. The OS can predict future processor information samples based on the number of consecutive saturated samples.
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Cox Keith
Culbert Michael
de Cesare Josh
Apple Inc.
Bae Ji H
Blakely , Sokoloff, Taylor & Zafman LLP
Lee Thomas
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