Sorting unit for a switching node comprising a plurality of digi

Details Sorting unit for a switching node comprising a plurality of digi Sorting unit for a switching node comprising a plurality of digi

1988-09-22

1990-02-27

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04Q 1104, H04J 326

Patent

active

049052241

ABSTRACT:
A sorting unit for a switching node comprising a plurality of digital switching matrix networks for fast, asynchronous packet switching networks, which switching node comprises a multi-stage, mixed connection structure based, for example, on a banyan tree structure, that forms a complete truck group, such that every input of the switching node is connectable to every output thereof. The digital switching matrix networks are fashioned as self-controlling (self-routing) sorting units that are a multi-stage circuit switching arrangement comprising 2m-1 beta element columns of m beta elements (.alpha.) each, whereby 2m is equal to the number of inputs and equal to the number of outputs of the sorting unit, and m is a power to two. The sorting unit is divided into a first sub-unit comprising m columns that functions as a distribution unit and a second sub-unit comprising m-1 columns that functions as a correction unit.

REFERENCES:
patent: 3428946 (1969-02-01), Batcher
patent: 4516238 (1985-05-01), Huang et al.
patent: 4550397 (1985-10-01), Turner et al.
patent: 4701906 (1987-10-01), Ransom et al.
patent: 4734907 (1988-03-01), Turner

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