Clock control system

Details Clock control system Clock control system

1988-06-24

1989-11-21

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

307269, 331 49, H04L 100

Patent

active

048827380

ABSTRACT:
A clock control system includes two clock supply units and two data processing units. Each clock supply unit is capable of supplying clock signals at either of two frequencies. The clock control system allows each data processing unit to be supplied with clock signals of either frequency from either clock supply unit. If one clock supply unit becomes defective, any data processing unit being supplied by that one defective clock supply unit can have its clock supply switched to the non-defective clock supply unit, without having to change the frequency of the non-defective clock supply unit.

REFERENCES:
patent: 4229699 (1980-10-01), Frissell
patent: 4254492 (1981-03-01), McDermott
patent: 4322580 (1982-03-01), Khan et al.
patent: 4480198 (1986-10-01), Gass
patent: 4564943 (1986-01-01), Collins et al.
patent: 4574377 (1986-03-01), Miyazaki et al.

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