Multiplex communications – Wide area network – Packet switching
Patent
1982-06-14
1984-11-20
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04Q 1104
Patent
active
044843232
ABSTRACT:
A time division switching system having distributed control processors is disclosed. The distributed processors exchange control messages and cooperate in the completion of talking paths between subscribers. Each control message includes an address portion defining the destination for the control message and is transmitted to a time-shared space division switch on the same time multiplex lines that speech representations are transmitted. Control messages are routed by the time-shared space division switch to a control distribution unit where the address portion is interpreted. When the address portion defines a distributed processor which controls the time-shared space division switch, the control distribution unit transmits the associated control message directly to that processor. Alternatively, when the address portion defines one of the other distributed processors the control distribution unit transmits the associated control message to the defined processor via the time-shared space division switch. Additionally, each control message can comprise an intervention portion and an arrangement is associated with each distributed processor which responds to the intervention portions by altering the functions performed by an associated distributed processor.
REFERENCES:
patent: 3623011 (1969-06-01), Baynard et al.
patent: 3912873 (1975-10-01), Skaperada
patent: 4074072 (1978-02-01), Christensen et al.
patent: 4178479 (1979-12-01), McDonald et al.
patent: 4213201 (1980-07-01), Gagnier et al.
patent: 4228535 (1980-10-01), Workman et al.
patent: 4254498 (1981-03-01), Tarawa et al.
patent: 4280217 (1981-07-01), Hafer et al.
patent: 4322843 (1982-03-01), Beuscher et al.
patent: 4377859 (1983-03-01), Dunning et al.
patent: 4382294 (1983-05-01), Beuscher et al.
R. Scheller et al., "A Local PCM Switching System for Voice and Data", ISS Conference, May 1979, pp. 419-426.
H. Takeda et al., "Time Division Switching Control System", Review of the Elec. Comm. Labs., Sep.-Oct. 1979, vol. 27, No. 9-10, pp. 773-782.
Beuscher Hugo J.
Bosco Harry L.
Huizinga Allen H.
Williams John R.
AT&T Bell Laboratories
Olms Douglas W.
Samples K. H.
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