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    Valve for acoustic port
    1.
    发明授权
    Valve for acoustic port 有权

    公开(公告)号：US10469940B2

    公开(公告)日：2019-11-05

    申请号：US15499775

    申请日：2017-04-27

    Applicant: Apple Inc.

    Inventor： Martin D. Taylor ,  Hongdan Tao ,  Claudio Notarangelo ,  Suzanne C. Brown ,  Benjamin J. Pope ,  Scott P. Porter ,  Tang Y. Tan ,  Christopher Wilk

    IPC: H04R29/00 ,  H04R1/28 ,  H04R3/00

    Abstract: A portable electronic device including an enclosure having an enclosure wall that forms an interior chamber. A speaker module is positioned within the interior chamber and includes a speaker and a module wall forming a back volume chamber of the speaker. The back volume chamber includes an acoustic vent port formed through the module wall to acoustically couple the back volume chamber to the interior chamber. The device further including an electromechanical valve for regulating the acoustic coupling of the back volume chamber to the interior chamber. The electromechanical valve is operable to transition between an open configuration in which the acoustic vent port is open to the interior chamber and a closed configuration in which the acoustic vent port is closed off from the interior chamber.

    FRONT PORT RESONATOR FOR A SPEAKER ASSEMBLY
    3.
    发明申请
    FRONT PORT RESONATOR FOR A SPEAKER ASSEMBLY 审中-公开

    公开(公告)号：US20190082252A1

    公开(公告)日：2019-03-14

    申请号：US15701335

    申请日：2017-09-11

    Applicant: Apple Inc.

    Inventor： Anthony P. Grazian ,  Christopher Wilk ,  Claudio Notarangelo ,  Hongdan Tao ,  Michael J. Newman ,  Onur I. llkorur ,  Thomas H. Tsang

    IPC: H04R1/28 ,  H04R9/06

    Abstract: A micro-speaker assembly including an enclosure having an enclosure wall separating a surrounding environment from an encased space, wherein the enclosure wall defines an acoustic port from the encased space to the surrounding environment; a sound radiating surface positioned within the encased space and dividing the encased space into a front volume chamber and a back volume chamber, wherein the front volume chamber is acoustically coupled to a first surface of the sound radiating surface and the acoustic port, and the back volume chamber acoustically coupled to a second surface of the sound radiating surface; and a resonator acoustically coupled to the front volume chamber, wherein the resonator comprises a neck acoustically coupled to an acoustic cavity, and an opening to the neck is positioned at a distance from the acoustic port that corresponds to a quarter wavelength resonance of the front volume chamber.

    ACOUSTIC CHAMBERS DAMPED WITH PLURAL RESONANT CHAMBERS, AND RELATED SYSTEMS AND METHODS
    5.
    发明申请
    ACOUSTIC CHAMBERS DAMPED WITH PLURAL RESONANT CHAMBERS, AND RELATED SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20190281381A1

    公开(公告)日：2019-09-12

    申请号：US15917426

    申请日：2018-03-09

    Applicant: Apple Inc.

    Inventor： Hongdan Tao ,  Anthony P. Grazian ,  Christopher Wilk ,  Matthew A. Donarski ,  Michael J. Newman ,  Onur I. Ilkorur

    IPC: H04R1/28 ,  H04R1/02

    Abstract: An acoustic enclosure has a housing at least partially defining an acoustic chamber for an acoustic radiator. The housing defines an acoustic port from the acoustic chamber to a surrounding environment. An acoustic resonator has a first resonant chamber and a second resonant chamber. The acoustic resonator also has a first duct to acoustically couple the first resonant chamber with the acoustic chamber and a second duct to acoustically couple the second resonant chamber with the first resonant chamber. An electronic device can have an electro-acoustic transducer. Circuitry in the electronic device can drive the electro-acoustic transducer to emit sound over a selected frequency bandwidth. Damping provided by the first and the second resonant chambers can de-emphasize one or more frequencies and/or extend a frequency response of the acoustic enclosure to improve perceived sound quality emitted by the electronic device.

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