Audio signal transmission system with noise suppression network

Details Audio signal transmission system with noise suppression network Audio signal transmission system with noise suppression network

1989-05-18

1990-09-04

Mullins, James B.

Amplifiers

Hum or noise or distortion bucking introduced into signal...

330 53, 381 94, 381120, H03F 126

Patent

active

049547879

ABSTRACT:
In an audio signal transmission system comprising an interface circuit is connected across the output terminals of an audio signal source or across the input terminals of an audio signal transmission cable coupled to the source. The interface circuit comprises either a discrete capacitance or a distributed capacitance in series with a discrete resistor. The value of the capacitance and the resistance in the interface circuit is chosen such that the time constant of the cable with the interface circuit produces in response to noise a signal having a frequency which is above the audio frequency spectrum but within the passband of the amplifier to which it is coupled.

REFERENCES:
patent: 4177431 (1979-12-01), Polk, Jr.
patent: 4483016 (1984-11-01), Hochstein et al.
patent: 4649565 (1987-03-01), Kaizer et al.

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