Feedback noise-eliminating microphone circuit

Details Feedback noise-eliminating microphone circuit Feedback noise-eliminating microphone circuit

1991-10-29

1993-06-08

Isen, Forester W.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 92, 381 93, 381 95, H04R 2700

Patent

active

052186423

ABSTRACT:
A feed-back noise-eliminating microphone circuit is provided. The circuit includes a positive-phase pick-up circuit to pick up sound source signal for amplification through a positive-phase amplifier for further output through a balance adjusting circuit and a power amplifier. The circuit further includes a reverse-phase pick-up circuit to pick up feedback signals from the loudspeaker for amplification through a reverse-phase amplifier, wherein feedback noise from the reverse-phase amplifier is offset at said balance adjusting circuit by the output signal from the positive-phase amplifier.

REFERENCES:
patent: 5033090 (1991-07-01), Weinrich
patent: 5077800 (1991-12-01), Dupret et al.

Affiliated with

Also associated with

Rating

Feedback noise-eliminating microphone circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feedback noise-eliminating microphone circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedback noise-eliminating microphone circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947855