Line connection reversing circuits

Details Line connection reversing circuits Line connection reversing circuits

1976-09-02

1977-11-29

Robinson, Thomas A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340166R, H04Q 352

Patent

active

040606996

ABSTRACT:
In a line connection reversing circuit of the type having a first set of a plurality of paired transmission lines, and a second set of a plurality of paired transmission lines crossing the set of paired transmission lines to form a matrix, there are provided four bidirectional semiconductor switching elements at each crosspoint of the matrix. Each semiconductor switching element is connected between conductors of two paired transmission lines of the first and second sets. The four semiconductor switching elements are grouped into two pairs, and the two pairs are controlled oppositely.

REFERENCES:
patent: 3260996 (1966-07-01), Muller
patent: 3535692 (1970-10-01), Papke
patent: 3550088 (1970-12-01), Jones
patent: 3657616 (1972-04-01), Mizushima et al.

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