Signal processors for digital telephone exchanges

Details Signal processors for digital telephone exchanges Signal processors for digital telephone exchanges

1983-08-18

1986-06-03

Brown, Thomas W.

Multiplex communications

Wide area network

Packet switching

179 18ES, H04Q 3545, H04Q 1104

Patent

active

045933880

ABSTRACT:
A digital telephone exchange including a first and second processor in which the second processor contains algorithms selectable by the first processor for operation of functions within the exchange, and in which subscribers' apparatus is connectable to both processors via bus structures and in which signals are passed along the bus structures between connected subscribers under the command of both processors.

REFERENCES:
patent: Re31651 (1984-08-01), Alles
patent: 4187399 (1980-02-01), Maxfield et al.
patent: 4213201 (1980-07-01), Gagnier et al.
patent: 4276451 (1981-06-01), Beebe et al.
patent: 4288658 (1981-09-01), Bieber et al.
patent: 4389720 (1983-06-01), Baxter et al.
"An Experimental Digital Switching System", G. Perucca, Intern'l. Switching Symposium, Munich, Sep. 1974, pp. 227/1-8.
"NEAX 12/22 EPBX Series", Enomoto et al., Intern'l. Switching Symposium, Paris, May, 1979, pp. 163-170.
"The Development and Field Introduction of a Digital Multiplex Switching System Family", Kenedi et al., Intern'l. Switching Symposium, Paris, May 1979, pp. 387-394.

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