Multiplex communications – Wide area network – Packet switching
Patent
1985-08-02
1987-10-06
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04Q 1104
Patent
active
046987991
ABSTRACT:
A high-speed link switch for a distributed-control burst-switching communications system. The switch provides fully integrated voice and data services and processing capacity sufficient to support T1 or higher transmission rates. A communications systems may include a plurality of switches interconnected by time-division multiplexed links. In a preferred embodiment, a link switch comprises a central memory coupled with a link-input processor, a link-output processor, a port-input processor, a port-output processor, and a memory manager. The link switch includes switching intelligence for routing a burst through the switch toward its destination port in the system. A burst is a plurality of bytes which may represent, for example, a block of data or a spurt of voice energy as sensed by silence/voice detectors located at voice ports. Within an outgoing communications link, a burst is transmitted by a switch one byte at a time in an assigned channel of sequential frames of the time-division multiplexed link. The routine intelligence employs dynamic allocation of bursts to channels within communications links such that any channel of a communications link is allocated only when a burst is being transmitted therein and such channel is otherwise available for transmission of another burst.
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Amstutz Stanford R.
Eliscu Mark
Haselton E. Fletcher
Chin Wellington
GTE Laboratories Incorporated
Keay David M.
Olms Douglas W.
Romanow Joseph S.
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