Nanoporous diaphragm for electromagentic transducer
    2.
    发明申请
    Nanoporous diaphragm for electromagentic transducer 审中-公开
    用于电磁传感器的纳米孔膜

    公开(公告)号:US20050089187A1

    公开(公告)日:2005-04-28

    申请号:US10693108

    申请日:2003-10-24

    摘要: An electromagnetic transducer such as a tweeter audio speaker, having a very low density diaphragm constructed of a nanoporous material such as aerogel or the like. The solid aerogel diaphragm has improved rigidity and reduced susceptibility to breakup modes. The aerogel may be provided with a skin of e.g. metal, plastic, or oxide to protect it, and it may be built by filling a conventional cone. The skin may encapsulate part or all of the aerogel body's surface, and it may further encapsulate the bobbin, or even the entire voice coil assembly. The nanoporous material comprises a very large percentage of the diaphragm's overall volume, giving the diaphragm a very low overall mass density with respect to conventional diaphragms. This allows diaphragm configurations, such as solid filled spheres, which have excellent stiffness without suffering from the large mass that such shapes would mandate if constructed from conventional materials.

    摘要翻译: 诸如高音扬声器的电磁换能器,具有由诸如气凝胶等纳米多孔材料构成的非常低密度的隔膜。 固体气凝胶隔膜具有改善的刚性和降低的分解模式的易感性。 气凝胶可以具有例如皮肤的皮肤。 金属,塑料或氧化物以保护它,并且可以通过填充常规锥体来构建。 皮肤可以封装部分或全部气凝胶体表面,并且其可以进一步封装线轴,甚至整个音圈组件。 纳米多孔材料包括隔膜整体体积的非常大的百分比,给予隔膜相对于常规膜片的非常低的总质量密度。 这允许隔膜配置,例如固体填充的球体,其具有优异的刚度,而不会受到如此由常规材料构成的这种形状所要求的大质量。

    Bessel array with full amplitude signal to half amplitude position transducers
    3.
    发明申请
    Bessel array with full amplitude signal to half amplitude position transducers 审中-公开
    贝塞尔阵列具有全幅度信号到半幅度位置传感器

    公开(公告)号:US20060159289A1

    公开(公告)日:2006-07-20

    申请号:US11358880

    申请日:2006-02-21

    IPC分类号: H04R3/00 H04R1/02

    摘要: A Bessel Array loudspeaker in which identical transducers are fed full amplitude signals. The half amplitude output at some Bessel positions can be achieved by angling those transducers to the side or up/down. The half amplitude transducers can be coupled to separate cabinets which can be rotated left/right with respect to the full amplitude transducers' cabinet, and the rotation can automatically reconfigure the wiring of the half amplitude transducers. The half amplitude output can alternatively be achieved by driving only half of the voice coil windings of the half amplitude transducers. The other half of their voice coil windings can optionally be driven via a low pass filter, to achieve an Improved Bessel with increased bass output and sensitivity.

    摘要翻译: 贝塞尔阵列扬声器,其中相同的换能器被馈送全幅度信号。 某些贝塞尔位置的半幅度输出可以通过将这些传感器倾斜到侧面或上/下来实现。 半幅度传感器可以耦合到可相对于全幅度传感器柜左右旋转的独立机柜,旋转可以自动重新配置半幅度传感器的接线。 可以通过仅驱动半幅度传感器的一半音圈绕组来实现半幅度输出。 其另一半的音圈绕组可以选择性地通过低通滤波器驱动,以实现改进的贝塞尔,增加低音输出和灵敏度。

    Bessel dipole loudspeaker
    4.
    发明申请
    Bessel dipole loudspeaker 审中-公开
    贝塞尔偶极扬声器

    公开(公告)号:US20060159288A1

    公开(公告)日:2006-07-20

    申请号:US11358864

    申请日:2006-02-21

    IPC分类号: H04R3/00 H04R1/40

    摘要: A dipole loudspeaker in which the oppositely oriented transducers each is a Bessel Array. Optionally, Improved or Super Bessel Arrays are used, and their half-amplitude end position transducers may be shared and aimed in a perpendicular—typically vertical—orientation. The Bessel Dipole is especially useful as a surround channel loudspeaker; for the same effective radiating area and/or sound production, the Bessel Dipole has a narrower cabinet than a conventional two-transducer dipole loudspeaker.

    摘要翻译: 一个偶极扬声器,其中相反方向的换能器各自是贝塞尔阵列。 可选地,使用改进的或超级贝塞尔阵列,并且它们的半幅度终端位置传感器可以被共享并且以垂直于垂直方向定向。 贝塞尔偶极子特别适用于环绕声扬声器; 对于相同的有效辐射面积和/或声音产生,Bessel Dipole具有比传统双传感器偶极扬声器更窄的机柜。

    Bessel array
    7.
    发明申请
    Bessel array 审中-公开
    贝塞尔阵列

    公开(公告)号:US20060018490A1

    公开(公告)日:2006-01-26

    申请号:US11220935

    申请日:2005-09-06

    IPC分类号: H04R1/02 H03G5/00

    摘要: An improved Bessel array of electromagnetic transducers, in which the Bessel coefficients (phase and/or magnitude) are applied only in the useful high frequency range, where off-axis interference patterns between the outputs of respective transducers cause undesirable acoustic results. One improvement is in using an all-pass filter or the like in lieu of an inverter in the inverting Bessel coefficient path, to provide an in-phase signal in low frequencies and an opposite-phase signal in high frequencies. This achieves the improved off-axis result of a conventional Bessel array, with improved low-frequency maximum sound pressure and efficiency. Another improvement is in using a frequency-dependent voltage divider, such as a shelf circuit, in the half-strength Bessel coefficient paths, to provide full-strength signals in low frequencies and half-strength signals in high frequencies. This achieves even more improved low-frequency maximum sound pressure. Yet another improvement is in using a high-pass filter in front of the inverting Bessel coefficient path, to provide a zero signal in low frequencies and an opposite phase signal in high frequencies.

    摘要翻译: 一种改进的贝塞尔电磁换能器阵列,其中贝塞尔系数(相位和/或幅度)仅应用于有用的高频范围,其中各个换能器的输出之间的离轴干涉图形导致不期望的声学结果。 一个改进是在反相贝塞尔系数路径中使用全通滤波器等来代替逆变器,以提供低频的同相信号和高频的相位相位信号。 这实现了常规贝塞尔阵列的改进的离轴结果,具有改进的低频最大声压和效率。 另一个改进是在半强度贝塞尔系数路径中使用频率依赖的分压器,例如搁架电路,以提供高频下的全强度信号和高频率的半强度信号。 这实现了更加改进的低频最大声压。 另一个改进是在反相贝塞尔系数路径前面使用高通滤波器,在低频中提供零信号和在高频率下提供相反的相位信号。