Digital phase locking arrangement for synchronizing digital span

Details Digital phase locking arrangement for synchronizing digital span Digital phase locking arrangement for synchronizing digital span

1983-06-22

1986-02-04

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

375 82, 370100, H03D 324

Patent

active

045690634

ABSTRACT:
In a PCM telecommunications switching system, an arrangement for deriving a clock signal from incoming PCM data of a digital span is shown. This derived clock signal is synchronized and continuously locked to the incoming PCM data of the digital span. The present digital phase locking arrangement cyclically adjusts the derive clock signal so that on the average synchronism is maintained.

REFERENCES:
patent: 4216544 (1980-08-01), Boleda et al.
patent: 4234956 (1980-11-01), Adderley et al.
patent: 4280099 (1981-07-01), Rattlingourd
patent: 4308619 (1981-12-01), Hughes
patent: 4380814 (1983-04-01), Shinmyo

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