Circuit arrangement with controllable transfer characteristic at

Details Circuit arrangement with controllable transfer characteristic at Circuit arrangement with controllable transfer characteristic at

1981-09-11

1984-05-29

Mullins, James B.

Amplifiers

Signal feedback

Phase shift means in loop path

330282, 330294, H03F 134, H03G 330

Patent

active

044517955

ABSTRACT:
A treble-control circuit which exhibits a particularly low noise level and which can be controlled digitally in a simple manner. The treble control circuit comprises an amplifier having an output connected to the arrangement of a capacitor in series with a resistor chain. The tappings of said resistor chain are connected to an inverting input of the amplifier via a first switch and to the output of the treble control circuit via a second switch.

REFERENCES:
patent: 3177350 (1965-04-01), Abbott
patent: 4099134 (1978-07-01), Schroder
patent: 4107622 (1978-08-01), Toyomaki
patent: 4262260 (1981-04-01), Tamura
patent: 4363001 (1982-12-01), Suzuki et al.

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