Crosspoint circuitry for data packet space division switches

Details Crosspoint circuitry for data packet space division switches Crosspoint circuitry for data packet space division switches

1986-08-06

1989-04-11

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

34082589, H04J 302

Patent

active

048212580

ABSTRACT:
An electronics space-division packet switch is disclosed in which each switch crosspoint includes digital logic capable of resolving simultaneous contentions for the source output buss medium. In particular, a bit-by-bit comparison of priority codes disconnects all switches but the one with the highest priority from the output buss.
This extremely simple crosspoint switch structure makes possible extremely large space-division packet switches in very compact physical form, using large scale integration techniques.

REFERENCES:
patent: Re31319 (1983-07-01), Fraser
patent: 3810160 (1974-05-01), Hedde
patent: 4603416 (1986-07-01), Servel et al.
patent: 4638475 (1987-01-01), Koike
patent: 4679190 (1987-07-01), Dias et al.
patent: 4683564 (1987-07-01), Young et al.
patent: 4701755 (1987-10-01), Nakagawa et al.

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