Volume control circuit

Details Volume control circuit Volume control circuit

1991-06-14

1993-06-22

Isen, Forester W.

Electrical audio signal processing systems and devices

Including amplitude or volume control

Remote

381123, 381 77, 381 28, 369 2, 369 6, H03G 300

Patent

active

052221504

ABSTRACT:
A volume control circuit in a system including a tuner and a deck which are prepared as separate components and combined together. The tuner has a control purpose audio input terminal, an audio output terminal, and an audio output level variable circuit provided between the control purpose audio input terminal and the audio output terminal. The tuner further includes a controller for setting the gain of the audio output level variable circuit. The deck has an audio output terminal connected to the control purpose audio input terminal of the tuner so as to issue an audio signal from the audio output terminal of the tuner. The controller of the tuner controls the gain of the audio output level variable circuit to vary the output volume.

REFERENCES:
patent: 3398240 (1968-08-01), Owens
patent: 3493681 (1970-02-01), Richards
patent: 4334242 (1982-06-01), Mangold
patent: 4527204 (1985-07-01), Kozakai et al.
patent: 4751581 (1988-06-01), Ishiguro et al.
patent: 4864550 (1989-09-01), Kawanaka

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