Electronic reverberation device

Details Electronic reverberation device Electronic reverberation device

1977-12-16

1979-06-05

Dahl, Lawrence J.

Amplifiers

Signal feedback

Phase shift means in loop path

84 124, 179 1J, 330109, H03F 136

Patent

active

041575113

ABSTRACT:
An electronic reverberation device comprising an input amplifier and an output amplifier connected in a circuit in which a delay device is connected between an output of the input amplifier and an input of the output amplifier, and a feedback path connects an output of the output amplifier to an input of the input amplifier. In order to render the operation of the device substantially frequency-independent, the delay line is a variable delay line the delay of which can be regulated by a regulator controlled by a control device which derives a control voltage from the output of the input amplifier. Preferably, the delay device is a bucket memory, the regulator a clock, and the control device comprises a diode having one terminal connected to the output of the input amplifier and another that is earth-connected through a capacitor and connected through a resistor to a control input of the clock.

REFERENCES:
patent: 3110771 (1963-11-01), Logan, Jr. et al.
patent: 3157725 (1964-11-01), Wayne, Jr.

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