Apparatus for automatic selective switching and transmission of

Details Apparatus for automatic selective switching and transmission of Apparatus for automatic selective switching and transmission of

1980-03-26

1982-08-31

Pitts, Harold I.

Communications: electrical

Continuously variable indicating

With meter reading

367198, H04Q 300

Patent

active

043475108

ABSTRACT:
Apparatus for automatic selective switching and transmitting of input signals in which switching circuits are provided for respective transmitting systems of a plurality of input signals. The switching circuits undergo opening and closing operations to carry out non-transmitting and transmitting of signals. Input signal detection circuits are supplied with said input signals and detect the same to produce detected signals. A circuit for forming control signals is supplied with the detected signals and forms control signals for closing the switching circuit provided for the transmitting system of an input signal which has arrived and causes the switching circuits of the other transmitting systems to open or to remain opened.

REFERENCES:
patent: 2922084 (1960-01-01), Franz
patent: 3202841 (1965-08-01), Kunzke
patent: 3300758 (1967-01-01), Hawley
patent: 3395394 (1968-07-01), Cottrell
patent: 3922641 (1975-11-01), Gates

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