Synthesized clock microcomputer with power saving

Details Synthesized clock microcomputer with power saving Synthesized clock microcomputer with power saving

1987-02-26

1990-01-09

Chan, Eddie P.

Boots, shoes, and leggings

365227, 3649486, 3649488, G06F 104, G06F 738

Patent

active

048932710

ABSTRACT:
A microcomputer having predetermined clock pulse frequency requirements receives pulses from a multiplying type frequency synthesizer which utilizes a reference frequency less than the largest of the predetermined requirements. The synthesizer is responsive to program instructions to generate clock pulse frequencies sufficient to satisfy the requirement for immediate execution of programmed tasks. As the requirements change, the synthesizer responds to provide only the frequency required. Thus, the power dissipated by the microcomputer system is minimized.

REFERENCES:
patent: 3922526 (1975-11-01), Cochran
patent: 3941989 (1926-03-01), McLaughlin et al.
patent: 4234929 (1980-11-01), Riley, Jr.
patent: 4267577, Hashimoto et al.
patent: 4317180 (1982-02-01), Lies
patent: 4384361 (1983-05-01), Masaki
patent: 4477919 (1984-10-01), Borras et al.
patent: 4479191 (1984-10-01), Nojima et al.

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