1975-01-31
1976-09-14
Claffy, Kathleen H.
179 18GF, H04Q 116
Patent
active
039808343
ABSTRACT:
A multi-stage connection switch frame comprising crossbar switch lattices arrayed in at least three stages which are interconnected through links. Two adjacent stages of the multi-stage connection switch frame comprise a plurality of vertical groups each group comprising a plurality of upper part of verticals connected to each other by horizontals thereof in a multi-stage configuration and a plurality of lower part of corresponding verticals in all of the vertical groups being connected to each other by horizontals thereof in a multi-stage configuration, thereby to form the lattices in two stages which are coupled to each other through the verticals.
REFERENCES:
patent: 3529094 (1970-09-01), Erwin et al.
patent: 3539730 (1970-11-01), Imamura
Akiyama Tadahiko
Mochizuki Kenji
Nishigori Shogo
Claffy Kathleen H.
Hitachi , Ltd.
Myers Randall P.
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