Adaptive switching apparatus for multi-stage networks

Details Adaptive switching apparatus for multi-stage networks Adaptive switching apparatus for multi-stage networks

1992-09-17

1994-09-06

Olms, Douglas W.

Communications: electrical

Continuously variable indicating

With meter reading

370 54, H04Q 100

Patent

active

053452291

ABSTRACT:
Disclosed is a method and apparatus for improving the performance and connection establishing capability of multi-stage switching networks by providing additional intelligent features in the individual switching apparatus devices at each stage of the network. The invention method is particularly effective in asynchronous circuit-switched networks. The most important feature to be added is adaptivity of the switching apparatus; where adaptivity means the ability of each switching element to determine for itself which of several optional alternate paths to try at each stage of the network based on availability. This is a better approach because it brings the decision directly to the switching apparatus involved, which has the data required to make an intelligent path selection decision to circumvent blocking in the multi-stage network.

REFERENCES:
patent: 4965788 (1990-10-01), Newman
patent: 4974224 (1990-11-01), Boone
patent: 4984237 (1991-01-01), Franaszek
patent: 5175733 (1992-12-01), Nugent
patent: 5198808 (1993-03-01), Kudo
IBM TDB vol. 33, No. 5, Oct., 1990, "Asynchronous Digital Video Switching System", by Farrell et al, pp. 227-233.

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