System for synchronizing exchanges of a telecommunications netwo

Details System for synchronizing exchanges of a telecommunications netwo System for synchronizing exchanges of a telecommunications netwo

1978-09-25

1981-05-26

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

375120, 331 1A, H03K 117

Patent

active

042702119

ABSTRACT:
A telecommunications network arranged in a hierarchical manner establishes synchronism between operation of pulses at different locations within the network, by sensing a predetermined phase deviation between a master pulse train and a locally produced pulse train, correcting the deviation by adjusting the phase of the locally produced pulse train, determining the time between required corrections of the phase of the locally produced pulse train, and adjusting the control voltage of the master oscillator for the locally produced pulse train in response to the time interval between successive corrections of the phase of the locally produced pulse train.

REFERENCES:
patent: 3109897 (1953-11-01), Carbrey
patent: 3879676 (1975-04-01), Schulz et al.

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