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    • 7. 发明申请
    • ULTRASONIC TRANSDUCERS
    • 超声波传感器
    • WO2017053716A1
    • 2017-03-30
    • PCT/US2016/053328
    • 2016-09-23
    • POMPEI, Frank Joseph
    • POMPEI, Frank Joseph
    • H04R17/10H04R7/12H04R7/14H04R7/16H04R7/24
    • H04R19/013H04R7/24H04R2217/03
    • Ultrasonic transducers that include membrane films and perforated baseplates. An ultrasonic transducer includes a baseplate having a conductive surface with a plurality of apertures, openings, or perforations formed thereon or therethrough, and a membrane film having a conductive surface. The membrane film is positioned adjacent to the apertures, openings, or perforations formed on or through the baseplate. By applying a voltage between the conductive surface of the membrane film and the conductive surface of the baseplate, an electrical force of attraction can be created between the membrane film and the baseplate. Varying this applied voltage can cause the membrane film to undergo vibrational motion. The dimensions corresponding to the size and/or shape of the apertures, openings, or perforations formed on or through the baseplate can be varied so that different regions of the baseplate produce different frequency responses, allowing the net bandwidth of the ultrasonic transducer to be increased.
    • 超声波换能器,包括膜膜和穿孔基板。 超声波换能器包括具有导电表面的基板,所述导电表面具有形成在其上或穿过其中的多个孔,开口或穿孔,以及具有导电表面的膜膜。 膜膜邻近形成在基板上或通过基板上的孔,开口或穿孔定位。 通过在膜膜的导电表面和基板的导电表面之间施加电压,可以在膜膜和基板之间产生吸引力。 改变施加的电压可导致膜膜经历振动。 可以改变对应于形成在基板上或通过基板上的孔,开口或穿孔的尺寸和/或形状的尺寸,使得基板的不同区域产生不同的频率响应,允许增加超声换能器的净带宽 。
    • 10. 发明申请
    • STABILIZER FOR MICROPHONE DIAPHRAGM
    • 麦克风胶片稳定剂
    • WO2014194222A4
    • 2015-02-12
    • PCT/US2014040280
    • 2014-05-30
    • SHURE ACQUISITION HOLDINGS INC
    • GRINNIP ROGER STEPHEN
    • H04R7/00H04R7/16
    • H04R7/20
    • A stabilizer for use in stabilizing a diaphragm of an audio device, such as a microphone transducer or a speaker driver. The stabilizer is configured to be attached to the diaphragm to provide stability to the diaphragm, which may be in the form of one or more of counteraction to asymmetric movement about the center of mass of the voice coil; counteraction to rotation in a direction perpendicular to the desired axial motion of the diaphragm; and additional nonlinear stiffness for mechanical limiting of the diaphragm in the axial direction, which may assist in preventing large excursions of the diaphragm from atypical sources, such as drop, shock, etc.
    • 用于稳定音频设备的隔膜的稳定器,例如麦克风换能器或扬声器驱动器。 稳定器构造成附接到隔膜以提供对隔膜的稳定性,其可以是围绕音圈质心的不对称运动的一种或多种的反作用形式; 与垂直于隔膜的期望轴向运动的方向的旋转相反; 以及用于在轴向方向上机械限制隔膜的额外的非线性刚度,其可以有助于防止隔膜从非典型源例如下落,冲击等的大的偏移。