Two channel looped communication system having rerouting and fol

Communications: electrical – Continuously variable indicating – With meter reading

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34082501, 370 16, H04Q 900, H04J 314

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active

045730440

ABSTRACT:
A communication system has a first station (SO) and a plurality of further stations (S1-S4), two communication channels (A, B), for transmission in opposite directions, serially connecting the stations. The first station includes routing means operable in a double looped mode to route signals received on each channel onto the respective other channel and the further stations each including routing means operable in a through mode to forward, in the same channel, signals received on each channel, thereby forming a single folded transmision path. Preferably the further stations each are responsive to the cessation of signalling energy (e.g. a break in the transmission path) on a channel to assume a looped mode in which signals received in the other channel are rerouted onto that channel, with the first station responding by assuming a through mode in which signals received on each channel are forwarded in the same channel, again forming a single folded transmission path following rerouting at two of the further stations.

REFERENCES:
patent: Re28958 (1976-09-01), Zafiropulo et al.
patent: 2986602 (1961-05-01), Tubinis
patent: 3458661 (1969-07-01), Forde et al.
patent: 3519750 (1970-07-01), Beresin et al.
patent: 4002847 (1977-01-01), Dail
patent: 4190821 (1980-02-01), Woodward
patent: 4354267 (1982-10-01), Mori
patent: 4370744 (1983-01-01), Hirano et al.
patent: 4380061 (1983-04-01), Mori et al.
patent: 4390984 (1983-06-01), Sugiura et al.
patent: 4446551 (1984-05-01), Seo
patent: 4460994 (1984-07-01), Scanlon et al.
Patent Abstracts of Japan, "Unexamined Applications" Feb. 4, 1981, vol. 5, No. 19: No. 55-147852 (Denki), No. 55-147850 (Seisakusho) and No. 55-147851 (Seisakusho).
Wilks, M. V. "Communication Using a Digital Ring" Pacnet Conference, Sendai, Japan, Aug. 1975, pp. 47-55.
Zafiropulo, p. "Reliability-A key Element in Loop Systems", 1974 Int, Zurich Seminar on Digital Communications, IEEE.
"Computers-Network Distributes Command and Control", Electronics, Jul. 14, 1981.
Press Report: "How Viable Cambridge Ring in the Lan Circus?", Electronics Times No. 153 3/10 Dec. 1981, pp. 30-32.

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