Communication control system
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United States of America Patent
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-
May 10, 1994
Issued Date -
N/A
app pub date -
Dec 18, 1990
filing date -
Nov 30, 1987
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A communication system includes a plurality of communication stations communicating with each other over a communication channel, wherein each station is provided with a station number which is transmitted as part of a data signal. Transmission control circuitry in each station detects the presence of a carrier wave on the communication channel indicating that another station is transmitting data. The station number is read from the transmitted data and is used to determine the length of a waiting period during which no carrier wave is detected, and after which the station can transmit data. Data collision circuitry is provided which causes data retransmission in the event of a data collision on said channel, after a waiting period determined by the station number of the transmitting station.
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