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    Speaker
    1.
    外观设计
    Speaker 有权

    公开(公告)号：USD724564S1

    公开(公告)日：2015-03-17

    申请号：US29414629

    申请日：2012-03-01

    申请人： Simon Davies

    设计人： Simon Davies

    Loudspeaker
    6.
    发明授权
    Loudspeaker 有权

    公开(公告)号：US10715921B2

    公开(公告)日：2020-07-14

    申请号：US16165356

    申请日：2018-10-19

    申请人： GP Acoustics International Limited

    发明人： Mark Alexander Dodd ,  Jack Anthony Oclee-Brown ,  Christopher Spear

    IPC分类号： H04R9/06 ,  H04R1/28 ,  H04R1/24 ,  H04R1/02 ,  H04R7/04 ,  H04R9/02

    摘要： Sound emanating from the high-frequency diaphragm of a coaxial speaker will diffract into the annular gap between the tweeter unit and the midrange cone. This results in response irregularities. We therefore disclose a loudspeaker, comprising first and second drivers located substantially coaxially with the first driver located centrally and the second driver located concentrically around the first driver, the loudspeaker being bounded at its radially outer side for at least part of its extent by the voice coil former of the second driver and including a spacing between the outermost extent of the first driver and the innermost extent of the second driver thus defining an annular space, the annular space containing a sound-absorbent material. By placing the sound-absorbing material in the annular space, the resonances within this space are damped, thus alleviating their effect. The annular space can have a lower resonant frequency that is below the passband of the first driver. Essentially, instead of minimising the effect of the annular gap by reducing its size and seeking to seal its outer opening, we propose to enlarge the space so that the fundamental resonant frequency it exhibits drops out of the passband of the high-frequency driver and hence out of the frequency range of interest. This both prevents the fundamental frequency of the cavity from being excited, and also allows sufficient room within the space to accommodate a sound-absorbent material to absorb these undesirable resonances.

    Loudspeaker array with multiple drivers
    8.
    发明授权
    Loudspeaker array with multiple drivers 有权

    公开(公告)号：US11683635B2

    公开(公告)日：2023-06-20

    申请号：US17708804

    申请日：2022-03-30

    申请人： GP Acoustics International Limited

    发明人： Sebastien Degraeve

    IPC分类号： H04R1/24 ,  H04R1/28 ,  H04R1/02 ,  H04R7/12 ,  H04R1/40

    CPC分类号： H04R1/24 ,  H04R1/023 ,  H04R1/288 ,  H04R1/403 ,  H04R7/12 ,  H04R1/025

    摘要： The present invention relates to a loudspeaker array comprising: a high frequency driver and a midrange driver forming a unitary assembly and configured to direct acoustic waves towards a listener in front of the loudspeaker array along an axis in a forward direction; at least one low frequency driver located generally rearwardly of the unitary assembly, and a woofer volume extending along and perpendicular to the axis between the at least one low frequency driver and the unitary assembly, in which the rear of the unitary assembly is configured and acoustically open so as to allow sound from the rear of the midrange driver to radiate rearwardly into the woofer volume.

    Acoustic waveguides
    9.
    发明授权
    Acoustic waveguides 有权

    公开(公告)号：US11626098B2

    公开(公告)日：2023-04-11

    申请号：US17065125

    申请日：2020-10-07

    申请人： GP Acoustics International Limited

    发明人： Jack Anthony Oclee-Brown ,  Mark Alexander Dodd

    IPC分类号： G10K11/18 ,  G10K11/02 ,  H04R1/30 ,  G10K11/32

    摘要： A method of designing an acoustic waveguide in which acoustic waves travelling along the waveguide are treated as exhibiting single parameter behaviour, and in which the waveguide provides a boundary confining the acoustic waves as they travel along the wave propagation path and has two substantially parallel, primary surfaces spaced apart a distance less than a wavelength of a high frequency acoustic wave. The primary surfaces may be planar, curved, or a combination of planar portions and curved portions.

    LOUDSPEAKER ARRAY WITH MULTIPLE DRIVERS
    10.
    发明申请
    LOUDSPEAKER ARRAY WITH MULTIPLE DRIVERS 有权

    公开(公告)号：US20220329931A1

    公开(公告)日：2022-10-13

    申请号：US17708804

    申请日：2022-03-30

    申请人： GP Acoustics International Limited

    发明人： Sebastien Degraeve

    IPC分类号： H04R1/24 ,  H04R1/28 ,  H04R1/02 ,  H04R7/12 ,  H04R1/40

    摘要： The present invention relates to a loudspeaker array comprising: a high frequency driver and a midrange driver forming a unitary assembly and configured to direct acoustic waves towards a listener in front of the loudspeaker array along an axis in a forward direction; at least one low frequency driver located generally rearwardly of the unitary assembly, and a woofer volume extending along and perpendicular to the axis between the at least one low frequency driver and the unitary assembly, in which the rear of the unitary assembly is configured and acoustically open so as to allow sound from the rear of the midrange driver to radiate rearwardly into the woofer volume.