Distributed digital signal multiplexing

Details Distributed digital signal multiplexing Distributed digital signal multiplexing

1985-04-10

1987-01-20

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 77, 34087011, 34087013, H04J 304, H04J 300

Patent

active

046384804

ABSTRACT:
An arrangement for digital multiplexing onto a common highway a plurality of analogue input signals which are physically spaced apart over a distance. m time division multiplexing units 5a each have for each of n separate analogue signals n single channel pulse coding means 6 the outputs of which are time division multiplexed at a common outlet 12. Each multiplexing unit 5a also has a timing circuit 7 which can be either free running or locked to the similar timing circuit of a succeeding unit (5b). Each unit has (m-1) bypass connections 15, 16, 17 so that the multiplexed outlets of succeeding units are fed in parallel to a group multiplexer. The timing circuits, being cascaded, ensure that propagation delays for the digital signals from each of the n analogue inputs are obviated.

REFERENCES:
patent: 4037199 (1977-07-01), Rozehnal et al.
patent: 4040059 (1977-08-01), Simons et al.
patent: 4177357 (1979-12-01), Mayer
patent: 4504943 (1985-03-01), Nagano et al.

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