Switching node for switching data signals transmitted in data pa

Details Switching node for switching data signals transmitted in data pa Switching node for switching data signals transmitted in data pa

1988-11-10

1990-05-01

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, H04L 1120

Patent

active

049224883

ABSTRACT:
To the switching node belongs at least one coupling element which has n input lines and n output lines optionally connectable to them via a space switch. To each of the input lines a buffer store is assigned in which k data packets are storable and which has m.ltoreq.k output terminals via which m data packets are simultaneously suppliable to the space switch having m.times.n input terminals and n output terminals. The storage addresses, under which the data packets to be routed are stored in the individual stores, are stored in accordance with the address signals contained in the data packets and stored in queue buffer stores assigned to the output lines. The queue buffer stores are cyclically accessible by a central control device for making available storage addresses. On the basis of storage addresses made available in such manner the central control device, on the one hand, controls the setting of the space switch and, on the other hand, the output of data packets from the buffer stores.

REFERENCES:
patent: 4491945 (1985-01-01), Turner
patent: 4603416 (1986-07-01), Servel et al.
patent: 4782478 (1988-11-01), Day, Jr. et al.
Dieudonne et al.; Switching Techniques for Asynchronous Time Division Multiplexing; Intl. Switching Symp.; Mar. 1987; pp. 367-372.
Boyer et al.; Time Transparency Evaluation of an Asynchronous Time-Division Network; Intl. Switching Symp.; Mar. 1987; pp. 974-978.
Knorpp et al.; Switching Node for Switching Data Signals Transmitted in Data Packets; U.S. Pat. Appln. No.: 07/269,519; filed 11/10/88.

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