System zur Rückkopplungsverhinderung in einer Ohrbenutzbaren Vorrichtung

Details

Veröffentlichungs-Nr.

EP4801059

Anmeldetag

27. Februar 2026

Veröffentlichung

2. September 2026

Rechtsraum

EP

Abstract

An ear-wearable device includes a receiver that outputs an acoustic signal in response to a drive signal, a source device that provides a reference audio signal, and an inward facing microphone that converts in-ear acoustic sound to an error signal. The device includes an active noise controller that provides a noise control signal based on the error signal and a processing block that provides an amplified hearing signal based on the reference audio signal. The device includes an instability detector configured to: determine a transform function that represents an approximation of an inverse of the active noise controller; apply the transform function to the drive signal to determine an inverse filter signal; apply a filter to the error signal. The filter compensates for deficiencies in the transform function. The active noise controller is disabled when an anomalous similarity between filtered error signal and the inverse filter signal is detected.

Anmelder

Firma

Starkey Laboratories, Inc.

Land

🇺🇸 USA