Sound filtering system
    47.
    发明授权

    公开(公告)号:US09913029B2

    公开(公告)日:2018-03-06

    申请号:US15308607

    申请日:2016-05-18

    Inventor: Doo Sik Shin

    Abstract: Provided is an earset. The earset includes an internal microphone provided inside an earphone worn on a user's ear, and configured to receive a first sound transferred from the user's mouth through an external auditory meatus via an Eustachian tube and convert the first sound into a first sound signal, at least one external microphone provided outside the earphone, and configured to receive a second sound provided from the user's mouth and convert the second sound into a second sound signal, and a controller configured to filter a noise of the second sound signal based on the first sound signal, remove the noise, and generate a third sound signal.

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