Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2011-01-11
2011-01-11
Lee, Thomas (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Reexamination Certificate
active
07870400
ABSTRACT:
A system and method saves power in a system memory of a processing system. A peripheral, a processor, an arbiter and a system memory are coupled to a system communication bus for communicating via the system communication bus. In one form a voltage controller is coupled to the system memory for varying the operating voltage of the system memory based upon whether the data processor or the peripheral is accessing the system memory. In another form a storage buffer is coupled to the memory for receiving and storing data from the memory. The buffer provides at least one signal that is used for either determining a rate at which the storage buffer is being emptied of data or a measure of fullness of the storage buffer. In one form the voltage controller varies the operating voltage of the memory based upon either the rate at which the storage buffer is being emptied of data or the measure of fullness.
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Kenkare Prashant U.
Moyer William C.
Chiu Joanna G.
Freescale Semiconductor Inc.
King Robert L.
Lee Thomas
Rehman Mohammed H
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