Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1987-11-30
1989-10-24
Griffin, Robert L.
Pulse or digital communications
Spread spectrum
Direct sequence
375108, 328 63, H04L 700
Patent
active
048767018
ABSTRACT:
A method, and apparatus implementing that method, for monitoring a synchronization circuit to ensure proper operation thereof. The synchronization circuit is of the type that receives asynchronously occurring input pulses to produce therefrom representations of the received input pulses, having state transitions synchronized to the state transitions of a periodic clock signal. The invention also receives the input pulses and the synchronized representation of those pulses, to ensure that for every input pulse there is provided a synchronized pulse by the synchronization circuit.
REFERENCES:
patent: 3959587 (1976-05-01), Allias
Griffin Robert L.
Huseman Marianne
Tandem Computers Incorporated
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