Multiplex communications – Wide area network – Packet switching
Patent
1984-10-05
1989-07-18
Griffin, Robert L.
Multiplex communications
Wide area network
Packet switching
379 88, H04J 302
Patent
active
048499668
ABSTRACT:
A system for providing announcements for transmission over a telecommunications network. The system includes a store (15) in which the announcements are stored. A processor (1) controls the writing and reading of announcements to and from the store. A bus (14) carries control signals to and from the processor and a second bus (20) carries digitally encoded audio signals in a synchronous time divided manner, which can be transmitted to the network via an interface (3). Data transfer between the buses is controlled by bus transfer modules (56). The structure is flexible and the system may include one or more code convert logic devices (50) for different types of speech encoding.
REFERENCES:
patent: 3963870 (1976-06-01), Couder et al.
patent: 4371752 (1983-02-01), Matthews et al.
patent: 4536877 (1985-08-01), Livingston et al.
patent: 4554418 (1985-11-01), Toy
patent: 4554658 (1985-11-01), Marten et al.
patent: 4582959 (1986-04-01), Myslinski et al.
patent: 4640992 (1987-02-01), Rose
The Bell System Technical Journal, vol. 60, No. 6, Jul.-Aug. 1981, Murray-Hill (US), T. W. Anderson et al., "Mass announcement subsystem", pp. 1083-1108.
European Conference on Electrotechnics Eurocon, May 3-7, 1977, Venezia (IT), Vulmiere et al.,: "O.S.V. a voice-synthesis unit for telecommunications system", pp. 2.1.3.1-2.1.3.6.
International Switching Symposium Session 23A, Paper 5, Sep. 21-25, 1981, Montreal (CA), W. G. Ekas et al.: "New operational services in PRX-A":, pp. 1-7.
Bruce Ian P. C.
Gibson David L.
Whitbread Hugh
Willis Alan R.
Griffin Robert L.
Scutch III Frank M.
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