Hearing aid with feedback compensation

Details Hearing aid with feedback compensation Hearing aid with feedback compensation

1990-08-06

1993-04-06

Ng, Jin F.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 682, 381 93, H04R 2500

Patent

active

052010066

ABSTRACT:
In a hearing aid with feedback compensation by virtue of at least one secondary microphone feeding into a delay unit and an attenuator feeding into one input of a difference amplifier, the other input with opposite polarity of which is connected to the output of the primary microphone receiving the ambient sound to be amplified and fed into the hearing-aid receiver and output duct, at least two secondary signal paths are provided. Each path comprises a secondary microphone with its associated delay unit and attenuator. An operational control unit may select the strongest signal to be used for feedback compensation. This makes it possible to achieve feedback compensation in various situations, such as may arise e.g. with an "in-the-ear" hearing aid when the user is chewing or yawning, creating various possible paths from the output duct past the housing of hearing aid to the primary microphone.

REFERENCES:
patent: 3944944 (1976-03-01), Ellenbecker
patent: 4455675 (1984-06-01), Bose et al.
patent: 4456795 (1984-06-01), Saito
patent: 4485272 (1984-11-01), Duong et al.
patent: 4649565 (1987-03-01), Kaizer et al.
patent: 5003606 (1991-03-01), Bordewijk
patent: 5033090 (1991-07-01), Weinrich

Affiliated with

Also associated with

Rating

Hearing aid with feedback compensation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hearing aid with feedback compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hearing aid with feedback compensation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-542371