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公开(公告)号：US20020064290A1
公开(公告)日：2002-05-30
申请号：US09993883
申请日：2001-11-27
发明人： David Reynaga , Henry Azima
IPC分类号： H04R023/00
CPC分类号： H04R1/028 , H04R7/045 , H04R9/066 , H04R2499/15
摘要： A loudspeaker/visual display combination comprises a visual display module and a transducer attached to the display module to apply bending wave energy thereto to cause the display module to radiate an acoustic output. Attachment of a transducer directly to the visual display module dispenses with the need for a separate bending wave speaker whilst application of bending wave energy to the module allows satisfactory acoustic performance to be obtained.
摘要翻译： 扬声器/视觉显示组合包括可视显示模块和附接到显示模块的换能器，以向其施加弯曲波能量以使显示模块辐射声输出。 将传感器直接连接到视觉显示模块，免除了单独的弯曲波扬声器的需要，同时向模块施加弯曲波能量可以获得令人满意的声学性能。
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公开(公告)号：US20040244492A1
公开(公告)日：2004-12-09
申请号：US10607487
申请日：2003-06-26
发明人： Viktors Berstis
IPC分类号： H04R001/00 , G01H003/00 , H04R023/00
CPC分类号： G01V7/02
摘要： A mass is levitated with respect to a base, at least one of which is comprised of a diamagnetic material, with the levitated mass also having a permanent magnetic property. A second permanent magnet is optionally configured such that it attracts the levitation mass away from the base to overcome gravitational force on the mass, thereby suspending the mass over the surface of the base. The mass is contained in a nonmagnetic, non-shielding and optionally optically-transparent housing so as to limit its excursion within a range of levitation positions. A position measurement means such as a laser interferometer, capacitance detector, or pickup coil is configured to measure positional deviations of the mass in response to incident pressure wave, the output of which being an electronic signal representing the pressure wave.
摘要翻译： 质量相对于基底悬浮，其中至少一个由抗磁性材料构成，悬浮体也具有永久磁性。 第二永久磁铁任选地构造成使得其将悬浮质量吸引离开基座以克服质量块上的重力，从而将质量悬浮在基体的表面上。 质量包含在非磁性，非屏蔽和可选的光学透明外壳中，以便将其偏移限制在悬浮位置的范围内。 诸如激光干涉仪，电容检测器或拾取线圈的位置测量装置被配置成测量响应入射压力波的质量的位置偏差，其输出是表示压力波的电子信号。
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