Gain control circuit for noise reduction system

Details Gain control circuit for noise reduction system Gain control circuit for noise reduction system

1980-05-19

1983-01-25

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 24, 360 65, G11B 502, G11B 545, G11B 1502

Patent

active

043706819

ABSTRACT:
A gain control circuit for an audio signal recorder includes a first transmission path having a variable gain amplifier for compressing an audio signal with a first gain characteristic in response to a first control voltage supplied thereto, a second transmission path having a variable gain amplifier for compressing the audio signal with a second gain characteristic different from the first gain characteristic in response to a second control voltage supplied thereto, a control circuit responsive to at least one of the compressed audio signals from the variable gain amplifiers for producing the control signals, and an adding amplifier for adding the compressed audio signals from the first and second transmission paths whereby the compressed audio signal from the first transmission path is effectively transmitted for recording when the level of the audio signal is below a predetermined value and the compressed audio signal from the second transmission path is effectively transmitted for recording when the level of the audio signal is above the predetermined value.

REFERENCES:
patent: 4169219 (1979-09-01), Beard
patent: 4187477 (1980-02-01), Endoh et al.
patent: 4263624 (1981-04-01), Gundry

Affiliated with

Also associated with

Rating

Gain control circuit for noise reduction system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gain control circuit for noise reduction system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gain control circuit for noise reduction system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1627061