Hot standby communications system

Details Hot standby communications system Hot standby communications system

1985-05-30

1987-10-13

Smith, Jerry

Excavating

34082501, 455 8, 370 16, H04L 122, G06F 1116

Patent

active

047003480

ABSTRACT:
A communications system of the type having a normal operating system and a back-up standby system includes a branching circuit which supplies an output signal at a high power and at a lower power, respectively. The high power signal is supplied to the system which is presently operating as the normal operating system. Controlled switching means are provided to direct the high power signal to the back-up system when the back-up system is to operate as the normal operating system, and to couple the output of the back-up system to the communications system output upon this occurrence.

REFERENCES:
patent: 3305791 (1967-02-01), Wolfe
patent: 3451042 (1969-06-01), Jensen
patent: 3487393 (1969-12-01), Medlinski
patent: 4317180 (1982-02-01), Lies
patent: 4385392 (1983-05-01), Angell
patent: 4437154 (1984-03-01), Eisele
patent: 4570219 (1986-02-01), Shibukawa

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