Feedback compensation device and method, and hearing aid...

Details Feedback compensation device and method, and hearing aid... Feedback compensation device and method, and hearing aid...

2005-08-16

2005-08-16

Ni, Suhan (Department: 2643)

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

C381S093000, C381S318000

Reexamination Certificate

active

06931137

ABSTRACT:
A feedback compensator for a hearing aid device has a filter arrangement that splits a signal path, to implement an adaptive feedback compensation with only one buffer memory, two splitting nodes, and two addition nodes. The feedback compensation ensues only in the feedback-susceptible frequency range of the input signal. In addition to the filtering of the input signal, it is advantageous to feed to the adaptive feedback compensation filter a bandwidth-limited signal that is taken from the amplified output signal.

REFERENCES:
patent: 6539091 (2003-03-01), Schertler
patent: 6606391 (2003-08-01), Brennan et al.
patent: 6618481 (2003-09-01), Schmidt
patent: 197 14 966 (1999-04-01), None
patent: 198 05 942 (1999-08-01), None

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