Method and apparatus for multiplexing digital signals

Multiplex communications – Wide area network – Packet switching

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H04J 306

Patent

active

046445366

ABSTRACT:
There is provided a method of multiplexing digital signals which includes multiplexing serial digital signals of a plurality of channels having a given transmission rate and each of which has frame synchronizing signals to a single serial signal, converting signals excluding the frame synchronizing signals of one selected channel to a format which allows inverse-conversion and which does not allow detection of the frame synchronizing signals and using the frame synchronizing signals of the one selected channel as frame synchronizing signals of the single serial signal. There is also provided apparatus for performing the method which includes circuitry for the steps referred to above.

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patent: 4520480 (1985-05-01), Kawai

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