Electric volume controller

Details Electric volume controller Electric volume controller

1997-03-24

1998-05-26

Harvey, Minsun Oh

Electrical audio signal processing systems and devices

Including amplitude or volume control

381 945, H03G 300

Patent

active

057579407

ABSTRACT:
An electronic volume controller includes a resistor circuit receiving an input signal and outputting an output signal and having a variable resistance, a switch control circuit controlling the resistance of the resistor circuit depending on resistance selection signals when activated in response to a select signal, and a mute circuit receiving the output signal of the resistor circuit and producing an output signal. The mute circuit mutes the output signal of the resistor circuit at least during one of times selected from a group consisting of a time when the switch control circuit is activated in response to the select signal to change the resistance of the resistor circuit depending on the resistance selection signals, a time when the switch control circuit is activated in response to the select signal to select a maximum resistance of the resistor circuit depending on the resistance selection signals, and a time when a level of the input signal is approximately zero.

REFERENCES:
patent: 4420694 (1983-12-01), Yokota

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