ACTIVE NOISE CANCELLATION IN AN EAR-WEARABLE DEVICE USING A VIBRATION SENSOR
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Sep 20, 2024
filing date -
Sep 20, 2024
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Abstract
An ear-wearable device includes a receiver that produces sound into an ear canal and an inward-facing microphone determining sound pressure resulting from: the sound reproduced by the receiver into the ear canal; and acoustical noise leaking into the ear canal. A structural vibration sensor is coupled to detect at least one of body-induced vibrations and receiver-induced vibrations and produce a sensed vibration signal in response. A sound processor of the ear-wearable device is operable to determine an error signal from the inward-facing microphone and determine an active noise cancellation (ANC) signal based on the error signal. The vibration signal is used to reduce the impacts of vibrations on ANC processing within the ear-wearable device.
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