Multiplex communications – Wide area network – Packet switching
Patent
1984-11-02
1986-07-22
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
34087013, 370 58, H04Q 1100, G08C 1508, G08C 1512
Patent
active
046023623
ABSTRACT:
A system for transporting data between equipment connected to a subscriber telephone line and a provider of services connects with subscriber telephone lines at a central office of a telephone company. The system includes a set of first multiplexers which are coupled to individual ones of the subscriber lines at a point between the cross-switching of the central office and the subscriber premises. Output signals of the first multiplexers fan into a second multiplexer. Bidirectional communication is provided between each of the multiplexers and the subscriber equipment, and also between the second multiplexer and the service provider via a line scanner which generates command signals for the operation of the first and second multiplexers. The first multiplexers, the second multiplexer, the line scanner and a host computer of the service provider can be located at a distance from each other and may be coupled together by communication links which permit the bidirectional flow of data.
REFERENCES:
patent: 3629846 (1971-12-01), Thompson
patent: 4256926 (1981-03-01), Pitroda et al.
patent: 4322843 (1982-03-01), Beuscher et al.
Das Santanu
Hargrave Franklin
Middleton Francisco A.
Hays Robert A.
ITT Corporation
Olms Douglas W.
Scutch III Frank M.
Van Der Sluys Peter C.
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