Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2006-08-08
2006-08-08
Lee, Thomas (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S322000, C713S401000
Reexamination Certificate
active
07089437
ABSTRACT:
In order to measure the power consumed by a bus in a digital signal processor, each bus conductor has a lead electrically coupled thereto. The lead is coupled to apparatus that provides a signal each time the logic state of the bus is changed. The total number of logic signal changes for a given period of time is determined. Because power is consumed by the bus only during logic state transitions, the total number of logic state transitions can be multiplied by the power consumed by the bus during each transition to provide the total power consumed during a predetermined period of time. The power consumed by the bus during each logic state transition can be determined by simulation or other techniques. The power consumed by the operation of the bus can be further divided into power consumed by the internal (on-chip) bus and the external (off-chip) bus.
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Brady W. James
Cao Chun
Holloway William W.
Lee Thomas
Telecky , Jr. Frederick J.
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