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    • 21. 发明授权
    • Loudspeakers
    • 扬声器
    • US06278787B1
    • 2001-08-21
    • US09417052
    • 1999-10-13
    • Henry Azima
    • Henry Azima
    • H04R2500
    • H04R7/045G07F9/02H04R1/24H04R5/02H04R7/20H04R9/04H04R2499/15
    • A mid/high frequency loudspeaker drive unit comprising a stiff lightweight resonant panel form member, a housing to which the panel fog member is mounted, a resilient suspension connected between the edges of the panel form member and the housing, the arrangement being such that the housing and the panel for member together define a closed cavity, and an electrodynamic exciter for applying bending wave energy to the panel form member to cause it to resonate to produce an acoustic output, the exciter comprising a magnet assembly rigidly fixed to the housing and defining an annular gap, and a voice coil and coil former assembly disposed in the annular gap and rigidly fixed to the panel form member near to the geometric center thereof, wherein only the resilient suspension centers the voice coil and coil former assembly in the annular gap.
    • 一种中/高频扬声器驱动单元,包括刚性轻质谐振板形成部件,安装有面板雾部件的壳体,连接在面板形成部件的边缘与壳体之间的弹性悬架,该装置使得 壳体和用于构件的面板一起限定了一个闭合腔体,以及一个电动激励器,用于将弯曲波能量施加到面板形成部件,以使其共振以产生声学输出,激励器包括刚性地固定到壳体上的磁体组件, 环形间隙,以及设置在所述环形间隙中并且刚性地固定到所述面板模构件的音圈和线圈架组件,靠近其几何中心,其中只有弹性悬架将音圈和线圈架组件居中在环形间隙中。
    • 24. 发明授权
    • Bending wave loudspeaker
    • 弯曲波扬声器
    • US06826285B2
    • 2004-11-30
    • US09920322
    • 2001-08-02
    • Henry Azima
    • Henry Azima
    • H04R2500
    • H04R7/18H04R7/045H04R7/20H04R2440/01
    • A loudspeaker comprising a panel which is sufficiently stiff to support bending waves, the panel having a boundary, a transducer mounted to the panel to apply bending wave energy in the form of dispersive travelling waves thereto at a first location in response to an electrical signal applied to the transducer to cause the panel to vibrate and radiate an acoustic output, the loudspeaker having a frequency range extending from a lower frequency to a higher frequency and the panel having a stiffness giving a coincidence frequency above the lower frequency. Means on or associated with the panel at a second location attenuates travelling bending waves in the panel to prevent or at least substantially to moderate panel resonance.
    • 一种扬声器,包括足够坚固以支撑弯曲波的面板,所述面板具有边界,安装到面板的换能器,以响应于施加的电信号在第一位置以分散行波的形式施加弯曲波能量 到所述换能器以使所述面板振动并辐射声输出,所述扬声器具有从较低频率延伸到较高频率的频率范围,并且所述面板具有给出高于所述较低频率的重合频率的刚度。 在第二位置处或与面板相关联的装置衰减面板中的行进弯曲波,以防止或至少基本上平息面板共振。
    • 25. 发明授权
    • Acoustic device
    • 声学装置
    • US06546106B2
    • 2003-04-08
    • US09280854
    • 1999-03-30
    • Henry Azima
    • Henry Azima
    • H04R2500
    • H04R7/045H04R1/24H04R7/22H04R2499/15
    • Acoustic device comprising a member relying on bending wave action with beneficial distribution of resonant modes thereof, wherein the member has its acoustically active area at least partly bounded by means having a substantially restraining nature in relation to bending wave vibration. Operation can be below coincidence, or above if desired for active acoustic device further having beneficial location of bending wave transducer means determined with reference to and taking account of such bounding means.
    • 声学装置包括依靠弯曲波作用的部件,其谐振模式有利的分布,其中该部件具有至少部分地由具有相对于弯曲波振动的约束性质的手段限定的声学有效面积。 如果需要有效的声学装置进一步具有参考并考虑到这种边界装置确定的弯曲波传感器装置的有利位置,则操作可以在一致以下。
    • 27. 发明授权
    • Acoustic devices
    • 声学装置
    • US06442282B2
    • 2002-08-27
    • US09935576
    • 2001-08-24
    • Henry AzimaMartin CollomsNeil Harris
    • Henry AzimaMartin CollomsNeil Harris
    • H04R2500
    • H04R5/02G07F9/02H04R1/24H04R7/045H04R2440/07H04R2499/15
    • Acoustic devices have members extending transversely of thickness and capable of sustaining bending waves causing consequential acoustic action by reason of areal distribution of resonant modes of natural bending wave vibration consonant with required achievable acoustic action of said member over a desired operative acoustic frequency range, Areal distribution of stiffness including variation(s) therein is used to get desired locations for bending wave transducers and/or good resonant mode acoustic action from inherently unfavourable shapes of members. Members with combined pistonic active drive and bending wave excitement at centers of mass and geometry are featured.
    • 声学装置具有横向厚度延伸的构件,并且能够承受弯曲波,由于在所需操作声频范围内由所述构件的所需可实现的声学作用引起的自然弯曲波振动辅助谐振模的面分布,从而产生相应的声音作用。 的刚度包括其中的变化用于获得用于弯曲波传感器的所需位置和/或从固有不利的构件形状的良好谐振模式声学作用。 具有在质量和几何中心组合的活塞主动驱动和弯曲波兴奋的构件。
    • 28. 发明授权
    • Acoustic devices
    • 声学装置
    • US06427016B1
    • 2002-07-30
    • US09246967
    • 1999-02-09
    • Henry AzimaNeil HarrisBijan Djahansouzi
    • Henry AzimaNeil HarrisBijan Djahansouzi
    • H04R2500
    • H04R29/001H04R7/045H04R2440/07
    • Acoustic devices rely on bending wave action in a panel member, particularly distribution of resonant modes of such bending wave action and related acoustically significant surface vibration over area of said panel member favourable to desired or at least acceptable acoustic device performance. The devices comply with selecting parameters of said panel member affecting said distribution, including configuration/geometry and/or bending stiffness(es), and/or location(s) of bending wave transducer(s) in said area of said panel member; the selecting being in accordance with analytical assessment of power transfer related characteristic(s) of said panel member thus said acoustic device concerned and desiderata therefor correlating with achieving said acoustic device performance.
    • 声学装置依赖于面板构件中的弯曲波动作用,特别是在所述面板构件的面积上的这种弯曲波作用和相关的声学显着表面振动的共振模式的分布有利于期望的或至少可接受的声学装置性能。 所述装置符合选择影响所述分配的所述面板构件的参数,包括所述面板构件的所述区域中的构造/几何形状和/或弯曲刚度和/或弯曲波换能器的位置; 所述选择是根据所述面板构件的功率传递相关特性的分析评估,因此所述声学装置及其所需的设备与实现所述声学装置性能相关。