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    • 71. 发明申请
    • Tetrahedral Loudspeaker
    • 四面体扬声器
    • US20100294587A1
    • 2010-11-25
    • US12454795
    • 2009-05-22
    • Derek W. MeyerAaron T. Emigh
    • Derek W. MeyerAaron T. Emigh
    • H05K5/00H03G5/00H03F99/00H04R1/02
    • H04R1/2884H04R1/2834
    • In some embodiments, a subwoofer enclosure includes a substantially triangular first face, second face, third face, and fourth face, a first corner at an intersection of the first, second and third faces, a second corner at an intersection of the first, second and fourth faces, a third corner at an intersection of the first, third and fourth faces, a fourth corner at an intersection of the second, third and fourth faces, wherein an angle between the first corner and a midpoint between the third corner and the fourth corner, having the second corner as its vertex, is substantially ninety degrees, wherein an angle between the third corner and the fourth corner, having the second corner as its vertex, is substantially ninety degrees, and a subwoofer driver attached to the third face, having a free air resonant frequency less than one hundred Hertz.
    • 在一些实施例中,重低音扬声器外壳包括基本上三角形的第一面,第二面,第三面和第四面,在第一,第二和第三面的相交处的第一角,第一,第二面 和第四面,第一,第三和第四面的相交处的第三角,第二角,第三和第四面的相交处的第四角,其中第一角和第三角与第三角之间的中点之间的角度 具有第二角作为其顶点的第四角基本上为九十度,其中具有第二角作为其顶点的第三角和第四角之间的角度基本上为九十度,以及附接到第三面的重低音扬声器驱动器 具有小于100赫兹的自由空气共振频率。