Multiplex communications – Wide area network – Packet switching
Patent
1991-05-21
1993-09-21
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
370 943, H04L 1256
Patent
active
052475131
ABSTRACT:
A novel packet-oriented multiple path self-routing switching network for switching asynchronous time-division multiplexed packets is characterized in that each switch unit of at least one upstream stage of the switching network includes means for defining an available state in which the downstream switch unit is available for routing packet traffic and for transmitting availability status information to upstream switch units when the downstream switch unit is in that available state, and is further characterized in that each upstream switch unit includes means for receiving availability status information for those outputs leading to a switch unit in the available state, and for prohibiting access to any output for which such availability status information is not received.
REFERENCES:
patent: 5008878 (1991-04-01), Ahmadi et al.
patent: 5020052 (1991-05-01), DePrycker et al.
Turner, "Design of a Broadcast Packet Switching Network", I.E.E.E. Transactions on Communications, vol. 36, No. 6, Jun. 1988, pp. 734-743.
U.S. patent application 07/776,337; Henrion et al, filed Dec. 13, 1991.
French Patent Application 90 03 246, filed Mar. 14, 1990.
Henrion Michel A.
Verhille Henri
ALCATEL N.V.
Safourek Benedict V.
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