Communication system having stations capable of detecting another station's
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United States of America Patent
Stats
-
Aug 9, 1983
Grant Date -
N/A
app pub date -
Sep 21, 1981
filing date -
Oct 2, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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