Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
Reexamination Certificate
2004-05-27
2010-10-05
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Noise compensation circuit
C381S093000, C381S071110
Reexamination Certificate
active
07809150
ABSTRACT:
A system providing method and apparatus to detect occurrence of an entrainment artifact and address it. The system analyzing a feedback canceller filter for certain characteristics that are associated with an entrained filter. When an entrained filter is detected, the feedback canceller filter is reset to a good filter that ideally represents the current approximate external acoustic feedback path without the characteristics of the entraining signal.
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Kindred Jon S.
Natarajan Harikrishna P.
Chin Vivian
Kurr Jason R
Schwegman Lundberg & Woessner, P.A.
Starkey Laboratories, Inc.
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