Multiplex communications – Wide area network – Packet switching
Patent
1983-11-17
1985-10-01
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 67, 370 87, 34082501, H04J 314, H04Q 1104
Patent
active
045450498
ABSTRACT:
A private branch exchange circuit in which information is transmitted between a plurality of subscriber stations in time division multiplex sequence over a plurality of data lines and control lines, one group of lines being for the transmission direction and a corresponding group for the reception direction, and all lines being commonly available to all stations. Pairs of oppositely directed lines are connected to complete a loop which includes a central control circuit which allocates the lines and time division time slots therein among all stations, and in the event of failure of any line re-allocates the stations to other lines.
REFERENCES:
patent: 4061880 (1977-12-01), Collins et al.
patent: 4076961 (1978-02-01), Holsinger et al.
patent: 4288870 (1981-09-01), McDonald et al.
patent: 4365247 (1982-12-01), Bargston et al.
patent: 4393493 (1983-07-01), Edwards
patent: 4442518 (1984-04-01), Morimoto
patent: 4463350 (1984-07-01), Kajiura et al.
Kammerer Walter
Spiro Vladimir
Briody Thomas A.
Eason Leroy
Kuntz Curtis
Olms Douglas W.
Streeter William J.
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