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US 7,689,851 B2Granted
Limiting power state changes to a processor of a computer device
AssigneeHewlett-Packard Development Company, L.P.
InventorsThomas P. Sawyers, Dallas M. Barlow
Life of this patent
Estimating the term…
Abstract
One embodiment is a computer device that uses a timer to limit a quantity of changes to different power states that are performed on a processor in the computer device during a predetermined time period. The power states changes each have different operating frequencies for the processor.
Claims22
A computer device power management system, comprising:
- a controller that throttles a processor of a computer device responsive to an overcurrent condition associated with a power source powering the computer device, the controller adjusts a power state of the processor to at least one of a plurality of predetermined power states based on a level of the throttle;
- and
- a timer that limits a quantity of changes to the power states that are performed on the processor during a predetermined time period to limit processing interruptions to the processor.
A computer device power management method, comprising:
- throttling a processor of a computer device in response to an overcurrent condition associated with a power source powering the computer device;
- adjusting a power state of the processor to at least one of a plurality of predetermined power states based on a level of the throttle;
- and
- preventing processing interruptions to the processor by limiting a quantity of power state transitions the processor performs during a predetermined time period.
1 more element
A computer device power management system, comprising:
- means for throttling a processor means of a computer means in response to an overcurrent condition associated with a power means powering the computer means;
- means for adjusting a power state of the processor means to at least one of a plurality of predetermined power states based on a level of the throttling;
- and
- means for preventing interruptions to the processor means by limiting a quantity of changes to the predetermined power states that are performed on the processor means during a predetermined time period.
1 more element
A computer storing executable instructions that are executed by a processor in the computer to perform a method, comprising:
- throttling of a processor of a computer device responsive to an overcurrent condition associated with a power source powering the computer device, the controller adjusts a power state of the processor to at least one of a plurality of predetermined power states based on a level of the throttle;
- and
- using a timer to prevent processing interruptions to the processor by limiting a quantity of transitions to the predetermined power states that the processor performs during a predetermined time period.
Dependencies are inferred from the claim text.