Electrical computers and digital processing systems: support – Computer power control
Patent
1997-11-12
2000-01-11
An, Meng-Ai T.
Electrical computers and digital processing systems: support
Computer power control
713320, 713322, 713340, 713600, 710 25, 714814, 714815, 326 21, 326 93, G06F 132
Patent
active
060147490
ABSTRACT:
The data processing circuit has a self-timed instruction execution unit, which operates asynchronously, signalling the completion of processes and starting subsequent processes in response to such signalling. In order to satisfy real time constraints upon program execution ready signals generated after completion of selected instructions are gated with a timer signal before they are used to start a next instruction. In an embodiment, the amount of time left between the ready signal is used to start a next instruction is measured and used to regulate a power supply voltage of the instruction execution unit so that it is just high enough to make the instruction execution unit sufficiently fast to meet the real time constraints.
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Baumann Daniel
Gloor Daniel
Gradenwitz Paul G. M.
Stegmann Gerhard
An Meng-Ai T.
El-Hady Nabil
U.S. Philips Corporation
Wieghaus Brian J.
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