Communication system having stations capable of detecting anothe

Details Communication system having stations capable of detecting anothe Communication system having stations capable of detecting anothe

1981-09-21

1983-08-09

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 36, 370 85, H04B 350

Patent

active

043982980

ABSTRACT:
A communication system comprising a connecting line and stations connected thereto, each station having free access to the connecting line. In a station which requests or has access, a transmitting stage and a receiving stage are both connected to the line, the output impedance of the transmitting stage on the supply of a predetermined logic value being temporarily increased to at least the order of magnitude of the characteristic impedance of the line, and a detector which is coupled to an output of the receiving stage producing a detection signal which switches off the transmitting station when the receiving stage receives a value which differs from the predetermined logic value.

REFERENCES:
patent: 4084069 (1978-04-01), Looschen
patent: 4086534 (1978-04-01), Olson
patent: 4205360 (1980-05-01), Drucker
patent: 4254501 (1981-03-01), Griffith et al.
patent: 4270214 (1981-05-01), Davis et al.

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