Process for the resynchronization of an exchange in a telecommun

Details Process for the resynchronization of an exchange in a telecommun Process for the resynchronization of an exchange in a telecommun

1989-09-19

1991-06-25

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

370103, H03L 700

Patent

active

050273752

ABSTRACT:
A network is synchronized by a hierarchical adjustment and the individual exchanges are equipped with frequency monitors for the reference frequencies that synchronize them, which, when activated, switch the center to another reference frequency or change it to the hold-over mode. When one of these exchanges is resynchronized, the rate-of-change of its reference frequency output signal of its central clock pulse generator is limited so that no frequency alarms are triggered in downstream exchanges synchronized by this exchange.

REFERENCES:
patent: 3813526 (1974-05-01), Watson et al.
patent: 3992580 (1976-11-01), Bittel et al.
patent: 4063244 (1977-12-01), Van de Kop
patent: 4412342 (1983-10-01), Khan et al.
patent: 4542503 (1985-09-01), Fladerer et al.
patent: 4677614 (1987-06-01), Circo
patent: 4837850 (1989-06-01), Maisel et al.
patent: 4849993 (1989-07-01), Johnson et al.

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