Digital signal multiplexing apparatus

Details Digital signal multiplexing apparatus Digital signal multiplexing apparatus

H - Electricity

04

J

363/10

H04J 3/16 (2006.01)

Patent

CA 1292332

- 1 - Abstract: A digital signal multiplexing apparatus comprises variable multiplexers each of which can alter a multi- plexed channel format every call in compliance with a subscriber's request. A fixed multiplexer has a multi- plexing capacity an integral number of times as large as the total multiplexing capacity of the variable multi- plexers, the multiplexed channel format of which is fixed. Fixed multiplexed signal demultiplexers each fixedly demultiplexes signals in a capacity an integral number of times as large as that of each of the variable multiplexers into signals of a capacity equal to the total capacity of the variable multiplexers. The outputs of the fixed multi- plexed signal demultiplexers are distributed to the variable multiplexers through a distributing switch network, and the outputs of the variable multiplexers are multiplexed by the fixed multiplexer. The result is a system of greater flexibility in terms of various subscrihers' differing requirements and also in terms of facilitating future expansion.

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