Transmission and reception of synchronous data and timing signal

Details Transmission and reception of synchronous data and timing signal Transmission and reception of synchronous data and timing signal

1986-05-02

1988-08-09

Cangialosi, Salvatore

Multiplex communications

Wide area network

Packet switching

3701101, 370100, H04J 316

Patent

active

047633182

ABSTRACT:
In an telecommunications switching system, user clock data is "massively sampled" at the source node with reference to a global clock signal, and reconstructed with no more than allowable error at the destination. Massive sampling and reconstruction of the clock signal allows users of the transmission system to send data at arbitrary data rates and to perform their own clock synchronization at a different protocol level from the hardware switching system. Direct use of the global system clock rate of approximately 192 kilobits per second (kbps) is provided for by synchronizing the user data with the global clock signal.

REFERENCES:
patent: 4078153 (1978-03-01), Moreau
patent: 4377860 (1983-03-01), Godhole
patent: 4419739 (1983-12-01), Blum
patent: 4433424 (1984-02-01), Taber et al.
patent: 4521883 (1985-06-01), Roche
patent: 4593389 (1986-06-01), Wurzburg et al.
patent: 4612653 (1986-09-01), Livingston et al.
patent: 4677614 (1987-06-01), Circo

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