Method and apparatus to reduce entrainment-related artifacts...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit

Reexamination Certificate

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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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