Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
Reexamination Certificate
2007-02-06
2007-02-06
Ni, Suhan (Department: 2615)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Noise compensation circuit
C381S312000
Reexamination Certificate
active
11015163
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.
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Arndt Georg-Erwin
Weidner Tom
Ni Suhan
Schiff & Hardin LLP
Siemens Audiologische Technik GmbH
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