Communication control system

Details Communication control system Communication control system

1987-08-10

1990-05-08

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

370 31, H04B 138

Patent

active

049244795

ABSTRACT:
A communication control system arranged between a plurality of terminal apparatuses and a host processing unit in order to transmit and receive signals based on an NRZI coding system between them by way of a half duplex communication system, a "0" bit detecting circuit for detecting the "0" bit of a one-bit length is provided in the communication control system and the sending and receiving modes are automatically switched in accordance with the output of this detecting circuit.

REFERENCES:
patent: 4154978 (1979-05-01), Tu
patent: 4214123 (1980-07-01), Dagnelie
patent: 4385392 (1983-05-01), Angell et al.
patent: 4419752 (1983-12-01), Sonnenberger et al.
patent: 4429384 (1984-01-01), Kaplinsky
patent: 4573168 (1986-02-01), Henze et al.
patent: 4622551 (1986-11-01), Kupersmith et al.
patent: 4685113 (1987-08-01), Hono et al.
patent: 4736394 (1988-04-01), Giovannelli et al.

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