OPEN WEARABLE ACOUSTIC DEVICE AND ACTIVE NOISE REDUCTION METHOD

    公开(公告)号:US20250006169A1

    公开(公告)日:2025-01-02

    申请号:US18885719

    申请日:2024-09-15

    Abstract: An open wearable acoustic device and an active noise reduction method are provided. The acoustic device includes a first sound sensor module, a speaker, and a noise reduction circuit. A first sound signal captured by the first sound sensor module includes an ambient noise signal of ambient noise and a leakage signal from the speaker. The noise reduction circuit may first generate a quasi-ambient noise signal by reducing components of the leakage signal in the first sound signal, and then generate a first noise cancellation signal based on the quasi-ambient noise signal. Then the speaker converts the first noise cancellation signal into a first noise cancellation audio, so that the first noise cancellation audio cancels at least a part of ambient noise in a space at and near an eardrum, thereby achieving noise reduction. Therefore, a noise reduction effect of active noise reduction can be improved.

    SYSTEMS AND METHODS FOR SUPPRESSING SOUND LEAKAGE

    公开(公告)号:US20230232167A1

    公开(公告)日:2023-07-20

    申请号:US18187693

    申请日:2023-03-22

    CPC classification number: H04R1/2849 H04R1/288 H04R1/345

    Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

    SYSTEMS AND METHODS FOR SUPPRESSING SOUND LEAKAGE

    公开(公告)号:US20220295193A1

    公开(公告)日:2022-09-15

    申请号:US17804611

    申请日:2022-05-31

    Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

    OPEN WEARABLE ACOUSTIC DEVICE AND ACTIVE NOISE REDUCTION METHOD

    公开(公告)号:US20250037695A1

    公开(公告)日:2025-01-30

    申请号:US18910944

    申请日:2024-10-09

    Abstract: An open wearable acoustic device and an active noise reduction method are provided. The acoustic device includes a first sound sensor module, a speaker, and a noise reduction circuit. The noise reduction circuit may obtain a first sound signal from the first sound sensor module, select a target noise reduction mode from a plurality of noise reduction modes based on the first sound signal, and execute the target noise reduction mode. This solution can adaptively adjust a noise reduction mode based on a noise condition of an external environment of the acoustic device, so that an active noise reduction process of the acoustic device is more in line with the noise condition of a current environment, thereby improving a noise reduction effect of the acoustic device.

    SYSTEMS, METHODS, APPARATUS, AND STORAGE MEDIUM FOR PROCESSING A SIGNAL

    公开(公告)号:US20240386900A1

    公开(公告)日:2024-11-21

    申请号:US18787018

    申请日:2024-07-29

    Abstract: The present disclosure provides systems and methods for processing a signal. The system for processing a signal may include at least one microphone and at least one vibration sensor. The at least one microphone may be configured to collect a sound signal, and the sound signal may include at least one of user voice and environmental noise. The at least one vibration sensor may be configured to collect a vibration signal, and the vibration signal may include at least one of the user voice and the environmental noise. The system for processing a signal may also comprise a processor. The processor may be configured to determine a relationship between a noise component in the sound signal and a noise component in the vibration signal, and obtain a target vibration signal by performing, based at least on the relationship, noise reduction processing on the vibration signal.

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