H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04L 12/64 (2006.01)
Patent
CA 1260585
LINK SWITCH FOR A BURST-SWITCHING COMMUNICATIONS SYSTEM 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 system 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 routing 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.
513744
Amstutz Stanford R.
Eliscu Mark
Haselton E. Fletcher
Gte Laboratories Incorporated
R. William Wray & Associates
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