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US 9,436,264 B2Granted
Saving power when in or transitioning to a static mode of a processor
AssigneeIntellectual Ventures Holding 81 LLC
InventorsAndrew Read, Sameer Halepete, Keith Klayman
Life of this patent
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Abstract
A method for reducing power utilized by a processor including the steps of determining that a processor is transitioning from a computing mode to a mode is which system clock to the processor is disabled, and reducing core voltage to the processor to a value sufficient to maintain state during the mode in which system clock is disabled.
Claims21
A method comprising:
- transitioning a processor to a reduced operation mode within a variable time allowed that varies based on a processor configuration;
- and
- reducing a voltage to the processor by a value dependent on the variable time allowed, wherein the voltage reduced by the value varies with a variation in the voltage and is sufficient to retain a memory state of the processor while the processor operates in the reduced operation mode.
An apparatus comprising:
- a processor configured to operate in a reduced operation mode;
- and
- a circuit configured to reduce a voltage to the processor by a value dependent on a variable time allowed for the processor to transition to the reduced operation mode, wherein the voltage reduced by the value varies with a variation in the voltage and is sufficient to retain a memory state of the processor while the processor operates in the reduced operation mode, and wherein the variable time allowed varies based on a processor configuration.
A circuit comprising:
- an input terminal;
- an output terminal;
- and
- a voltage regulator coupled to the input and output terminals, wherein the voltage regulator is configured to reduce a voltage to a processor by a value dependent on a variable time allowed for the processor to transition to a reduced operation mode, wherein the voltage reduced by the value varies with a variation in the voltage and is sufficient to retain a memory state of the processor while the processor operates in the reduced operation mode, and wherein the variable time allowed varies based on a processor configuration.
1 more element
Dependencies are inferred from the claim text.