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    LOUDSPEAKER WITH REDUCED AUDIO COLORATION CAUSED BY REFLECTIONS FROM A SURFACE
    2.
    发明申请
    LOUDSPEAKER WITH REDUCED AUDIO COLORATION CAUSED BY REFLECTIONS FROM A SURFACE 有权

    公开(公告)号：US20220174399A1

    公开(公告)日：2022-06-02

    申请号：US17651563

    申请日：2022-02-17

    Applicant: Apple, Inc.

    Inventor： Martin E. Johnson ,  Simon K. Porter ,  Suzanne Hardy ,  John H. Sheerin

    IPC: H04R1/28 ,  H04R1/40 ,  H04R1/02 ,  H04R1/26 ,  H04R3/14

    Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

    Loudspeaker with reduced audio coloration caused by reflections from a surface
    3.
    发明授权
    Loudspeaker with reduced audio coloration caused by reflections from a surface 有权

    公开(公告)号：US11290805B2

    公开(公告)日：2022-03-29

    申请号：US16822474

    申请日：2020-03-18

    Applicant: Apple Inc.

    Inventor： Martin E. Johnson ,  Simon K. Porter ,  Suzanne Hardy ,  John H. Sheerin

    IPC: H04R1/28 ,  H04R1/40 ,  H04R1/02 ,  H04R1/26 ,  H04R3/14

    Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

    Loudspeaker with reduced audio coloration caused by reflections from a surface
    6.
    发明授权
    Loudspeaker with reduced audio coloration caused by reflections from a surface 有权

    公开(公告)号：US12192698B2

    公开(公告)日：2025-01-07

    申请号：US18377261

    申请日：2023-10-05

    Applicant: APPLE INC.

    Inventor： Martin E. Johnson ,  Simon K. Porter ,  Suzanne Hardy ,  John H. Sheerin

    IPC: H04R1/28 ,  H04R1/02 ,  H04R1/26 ,  H04R1/40 ,  H04R3/14

    Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

    Compact speaker
    7.
    发明授权
    Compact speaker 有权

    公开(公告)号：US11310585B2

    公开(公告)日：2022-04-19

    申请号：US17067611

    申请日：2020-10-09

    Applicant: Apple Inc.

    Inventor： Jason C. Della Rosa ,  Alexander R. Gould ,  Ethan W. Juhnke ,  John H. Sheerin ,  Glenn K. Trainer ,  Ariel A. Massias ,  Edward V. Anderson ,  Pablo Seoane Vieites ,  Junyi Yang

    IPC: H04R1/28 ,  H04R5/02 ,  H04R1/02 ,  H04R9/06

    Abstract: An electronic speaker comprising: a device housing defining an interior cavity and including a sidewall extending around the interior cavity between an upper portion and a lower portion of the device housing; first and second sound channels formed at opposing locations along the sidewall, each of the first and second sound channels comprising a plurality of openings formed through the sidewall; a passive radiator array comprising first and second passive radiators disposed within the interior cavity, spaced apart from each other in an opposing relationship and aligned to project sound through the first and second sound channels; an active driver disposed in the device housing and configured to generate sound in response to an electrical signal, the active driver comprising driver housing disposed at least partially between the first and second passive radiators, a magnet disposed within the driver housing, a voice coil and a diaphragm facing downwards towards the lower surface of the device housing; and an annular sound channel disposed along the bottom portion of the device housing adjacent to the diaphragm of the active driver.

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