Semiconductor circuit device

Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses

Reexamination Certificate

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Details

C713S401000, C713S500000, C713S501000, C713S152000, C713S503000, C713S600000, C713S601000

Reexamination Certificate

active

07073085

ABSTRACT:
To provide a semiconductor circuit device including a synchronous frequency divider which counts input clock signals and outputs a counted value, a selector circuit which receives signals of bits of the counted value output from the synchronous frequency divider and outputs a carry look-ahead signal of predetermined bits as an operation-processing effective-state signal in accordance with a selector signal, and an integrated circuit portion which uses a clock signal input to the synchronous frequency divider as a source clock and whose operating frequency is switched in accordance with the operation-processing effective-state signal.

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patent: 10-198457 (1998-07-01), None

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