Telephonic communications – Centralized switching system – Switching controlled in response to called station...
Patent
1993-09-29
1994-12-06
Dwyer, James L.
Telephonic communications
Centralized switching system
Switching controlled in response to called station...
379268, 379335, H04Q 100
Patent
active
053717864
ABSTRACT:
Disclosed is a cross-connect system, such as a feeder distribution interface for telecommunications. User and feeder wires are each coupled to two sides of the matrix in order to provide flexibility in the electrical path. The switches, which are of the double-pole, double-throw variety, are employed at selected crosspoints of the switch matrix in such a manner as to reduce the number of switches required.
REFERENCES:
patent: 4605928 (1986-09-01), Georgia
patent: 4833708 (1989-05-01), Goodrich
patent: 4931802 (1990-06-01), Assal et al.
A. E. Joel, Jr., "On Permutation Switching Networks," Bell System Technical Journal, vol. 47, (1968), pp. 813-822.
AT&T Bell Corp.
Birnbaum Lester H.
Dwyer James L.
Hunter Daniel
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