Time-division switching unit

Details Time-division switching unit Time-division switching unit

1983-07-27

1985-09-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 58, H04Q 1104

Patent

active

045436525

ABSTRACT:
A time-division switching unit for connecting a desired channel of a desired one of a plurality of input highways to a desired channel of a desired one of a plurality of output highways is disclosed. A frame synchronization circuit of the time-division switching unit variably delays signals of the input highways within one channel period, writes the signals to a speech memory for each channel, modifies write addresses to the speech memory to attain frame synchronization, extracts frame synchronization signals of the respective highways from the input and output of the speech memory, and controls the amount of delay within one channel period and the amount of address modification by the extracted synchronization signals.

REFERENCES:
patent: 4131763 (1978-12-01), Herschtal
patent: 4206322 (1980-06-01), Lurtz
patent: 4371962 (1983-02-01), Zeitraeg

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