Multiplex communications – Wide area network – Packet switching
Patent
1985-07-08
1987-06-09
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 67, 370 85, H04Q 1104
Patent
active
046726047
ABSTRACT:
A multi-stage time division switch interconnects a plurality of processors that individually communicate over one or more channels at various signalling rates. Any processor may initiate a call and request that a connection be set by the switch. The switch assigns one or more time slots to the call and gathers or distributes data over the interconnecting channels through the utilization of polling techniques, thereby creating a virtual circuit through the combination of a time division switch and a polled communication line.
REFERENCES:
patent: 3769461 (1973-10-01), Lewis
patent: 4280217 (1981-07-01), Hafer et al.
patent: 4370743 (1983-01-01), Moran
patent: 4530093 (1985-07-01), Akram et al.
patent: 4538262 (1985-08-01), Sinniger et al.
patent: 4545049 (1985-10-01), Kammerer
patent: 4573151 (1986-02-01), Jotwani
Bhatia Rajiv
Kneuer Joseph G.
American Telephone and Telegraph Company
AT&T Information Systems Inc.
Bell Telephone Laboratories Incorporated
Lipton Roy C.
Olms Douglas W.
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