Multiplex communications – Wide area network – Packet switching
Patent
1986-04-23
1989-05-09
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 89, 34082505, H04J 302
Patent
active
048295167
ABSTRACT:
A system structure recognition method for a multiloop transmission system for recognizing the system structure of a transmission system consisting of a plurality of loop transmission lines, a plurality of devices connected with each of a plurality of transmission control devices disposed on each of the loop transmission lines, and relay terminals connecting the loop transmission lines with each other includes a step of sending the message to the loop transmission lines after having added an address to the data portion of the message, when a message for system recognition reaches each of the transmission control devices from the loop transmission lines and a step, in which, when the message for system recognition reaches one of the relay terminals from one of the loop transmission lines, the message is sent to the other loop transmission line after having inserted a flag representing a relay of the message between different loops in the data portion of the message for system recognition.
REFERENCES:
patent: 3787627 (1974-01-01), Abramson et al.
patent: 4677615 (1987-06-01), Orimo et al.
Mori Kinji
Orimo Masayuki
Suzuki Yasuo
Hitachi , Ltd.
Olms Douglas W.
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