Telecommunications exchange allocating variable channel bandwidt

Details Telecommunications exchange allocating variable channel bandwidt Telecommunications exchange allocating variable channel bandwidt

1986-05-29

1988-07-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 85, H04J 324

Patent

active

047590173

ABSTRACT:
In a time division multiplexed digital switching system intercommunication between telephony groups is by way of a serially operated data bus (2). Allocation of bandwidth on the data bus (2) is on a needs basis under control of a common control responsive (3) to requests from either applications processors or interface modules (10,20). The interface modules (10,20) receive addressing information from the common control (5) on a serially operated control bus (1) only when a change of status of a communication at least partly affecting that module (10,20) occurs. Such changes of status include new communication set-ups, communication clear-down, bandwidth increase and bandwidth decrease. Dynamic re-allocation of bandwidth of the data bus (2) occurs without affecting communications in progress.

REFERENCES:
patent: 3632881 (1972-01-01), Graham
patent: 4251880 (1981-02-01), Baugh et al.
patent: 4340961 (1982-07-01), Capel et al.
patent: 4445116 (1984-04-01), Grow
"Telecommunications and the Computer", James Martin, Prentice-Hall, 1976, pp. 482-486.

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