Method and apparatus for converting time-division data signals r

Details Method and apparatus for converting time-division data signals r Method and apparatus for converting time-division data signals r

1979-05-25

1981-06-30

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

370111, H04J 300

Patent

active

042766419

ABSTRACT:
Methods and apparatus for converting time-division data signals received over an incoming trunk having v.sub.e channels into time-division data signals for transmission over an outgoing trunk having v.sub.s channels (where v.sub.s >v.sub.e).
The device includes means for storing the data bits contained in each incoming frame; means for reading at an intermediate frequency f.sub.i, during read enable periods, the stored data bits corresponding to v.sub.e busy outgoing channels and for evenly distributing v.sub.s -v.sub.e free outgoing channels amongst the v.sub.e busy outgoing channels, during read inhibit periods; and means for transmitting at a frequency f.sub.s the data bits read at the intermediate frequency f.sub.i.
This device may advantageously be used in PCM telephone exchanges.

REFERENCES:
patent: 3558823 (1971-01-01), Brilliant
patent: 3692942 (1972-09-01), Inose
patent: 4138596 (1979-02-01), Roche
patent: 4154985 (1979-05-01), Munter

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