Rugged crosspoints for communication systems

Details Rugged crosspoints for communication systems Rugged crosspoints for communication systems

1977-08-15

1978-12-05

Robinson, Thomas A.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307315, 340166R, H04Q 352

Patent

active

041287428

ABSTRACT:
A bilateral solid-state crosspoint for use in a telecommunications switching network is disclosed comprising a pair of Darlington connected pairs of transistors connected in a complementary relationship. The transmission path in each direction through the crosspoint comprises a Darlington connected pair of transistors and one additional semiconductor junction. A control circuit provides base drive to the transistors to close the crosspoint.

REFERENCES:
patent: 3828314 (1974-08-01), Bradbery et al.
patent: 3872439 (1975-03-01), Salam
patent: 3886369 (1975-05-01), Porter
patent: 4032892 (1977-06-01), Matsuyama et al.

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