Digital duplex transmission system

Details Digital duplex transmission system Digital duplex transmission system

1979-01-11

1980-09-02

Robinson, Thomas A.

Multiplex communications

Wide area network

Packet switching

375 28, H04J 306

Patent

active

042208165

ABSTRACT:
A digital duplex transmission system for use in a local area uses a modified dipulse code from the exchange terminal to the subscriber terminal and either a different modified dipulse code or a modified AMI (Alternate Mark Inversion) code in the other direction to achieve time separation of signals at each terminal. Incorporation of a hybrid separator in each terminal further improves the performance of the system.

REFERENCES:
patent: 3936602 (1976-02-01), Korver
patent: 4071692 (1978-01-01), Weir et al.

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