Damper for hearing aid

Details Damper for hearing aid Damper for hearing aid

1998-09-22

2000-04-04

Le, Huyen

Electrical audio signal processing systems and devices

Hearing aids, electrical

Programming interface circuitry

381312, 381320, 381321, H04R 2500

Patent

active

060470755

ABSTRACT:
A hearing aid is set forth that includes one or more hearing aid components that introduce an undesired undamped peak into the frequency response of the hearing aid. An electronic damping filter is utilized to compensate for the undamped peak. The electronic damping filter has a notch filter response that includes an inverse peak across the frequency range of the undamped peak thereby electronically damping the frequency response so that the hearing aid output is generally unaffected by the undesired characteristics of the inverse peak.
The electronic damping filter may be programmable to vary the magnitude and/or shift the frequency of the inverse peak. A method is set forth that exploits this programmability and allows the same circuit topology to be used in two different hearing aids respectively having two different undamped peaks. A further method allows handling two or more peaks.

REFERENCES:
patent: 5812679 (1998-09-01), Killion et al.

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