Sound radiation system
    1.
    发明授权
    Sound radiation system 失效
    声辐射系统

    公开(公告)号:US3862366A

    公开(公告)日:1975-01-21

    申请号:US27951572

    申请日:1972-08-10

    CPC分类号: H04R1/323 H04R1/26

    摘要: A sound radiator comprising at least four high frequency loudspeakers with their axes intersecting in zigzag relationship, and a single low frequency loudspeaker whose center is at a distance not more than 1.5 times the diameter of the low frequency loudspeaker from the center of that high frequency loudspeaker which is farthest from the low frequency loudspeaker. The wave length of the crossover frequency of the low frequency and high frequency loudspeakers is not more than the smallest dimension of the housing for the unit measured in a plane perpendicular to the axis of the low frequency loudspeaker. A perforated obstacle is disposed in front of part of the high frequency loudspeakers.

    摘要翻译: 一种声辐射器,包括至少四个高度相对于之字形关联的高频扬声器的扬声器,以及单个低频扬声器,其中心距离该高频扬声器中心的低频扬声器的直径不超过1.5倍 它距离低频扬声器最远。 低频和高频扬声器的交叉频率的波长不大于在与低频扬声器的轴垂直的平面中测量的单元的壳体的最小尺寸。 穿孔障碍物设置在部分高频扬声器的前面。

    Sound radiator
    2.
    发明授权
    Sound radiator 失效
    声音散热器

    公开(公告)号:US3648801A

    公开(公告)日:1972-03-14

    申请号:US3648801D

    申请日:1970-02-25

    IPC分类号: H04R1/32 G10K13/00 H04R1/28

    CPC分类号: H04R1/323

    摘要: A series of at least three loud speakers is set one in each of at least three walls forming alternately oppositely opening dihedral angles with each other. The center-to-center distance between the loud speakers is less than 10 times the wavelength of the upper limiting frequency of the sound frequency band. The loud speakers are excited by the same signal source, and a stronger interference field is produced than if the sound emanated from a planar or spherical surface.

    摘要翻译: 一系列至少三个扬声器在至少三个壁中的每一个中设置成彼此交替地相反地开放的二面角。 扬声器之间的中心到中心距离小于声频带上限频率波长的10倍。 扬声器由相同的信号源激发,并且产生比从平面或球面发出的声音更强的干涉场。