Muting device

Details Muting device Muting device

1980-11-03

1983-06-28

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

330281, 330284, H03G 334

Patent

active

043908470

ABSTRACT:
With a muting device according to this invention, an input signal is supplied to a changeover switch, which in turn is connected to an output terminal through an amplifier and muting switching circuit. A terminal from which a switching operation changeover signal is sent forth is connected to a changeover switch, and also to a muting control circuit through a differentiation circuit. The output terminal of the muting control circuit is connected to a muting switching circuit. The differentiation circuit is formed of a series circuit of a resistor and a capacitor. A junction between the differentiation circuit and muting control circuit is connected to a constant input terminal through a resistor. The muting control circuit is provided with a single input terminal.

REFERENCES:
patent: 4095191 (1978-06-01), Shibuya

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