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    MICRO-ELECTROMECHANICAL UNIT, LOUDSPEAKER AND MICROPHONE THEREOF
    4.
    发明公开
    MICRO-ELECTROMECHANICAL UNIT, LOUDSPEAKER AND MICROPHONE THEREOF 审中-公开

    公开(公告)号：EP4175319A1

    公开(公告)日：2023-05-03

    申请号：EP21205567.7

    申请日：2021-10-29

    申请人： Epinovatech AB

    发明人： OLSSON, Martin Andreas

    IPC分类号： H04R3/00 ,  H04R7/10 ,  H04R17/02 ,  H04R19/00 ,  H04R19/04

    摘要： A micro-electromechanical unit (100) is provided. The micro-electromechanical unit (100) comprises a diaphragm (10) having a planar extension. The diaphragm (10) comprises a semiconductor structure (20) comprising a first (22) and a second (24) layer, each layer extending in the planar extension. The first layer (22) comprises AI(1-x)Ga(x)N, wherein 0.2 ≤ x ≤ 0.4, and the second layer (24) comprises GaN. The micro-electromechanical unit (214) further comprises a support structure (30) supporting the diaphragm (10), and an electrode arranged (50) on a surface of the diaphragm (10). Also, a loudspeaker device (200) and a microphone device (300) comprising the micro-electromechanical unit (100) are disclosed.

    DYNAMIC LOUDSPEAKER DRIVER, LOUDSPEAKER AND MOBILE DEVICE COMPRISING A LOUDSPEAKER
    10.
    发明公开
    DYNAMIC LOUDSPEAKER DRIVER, LOUDSPEAKER AND MOBILE DEVICE COMPRISING A LOUDSPEAKER 审中-公开
    动态扬声器驱动器，扬声器和包含扬声器的移动设备

    公开(公告)号：EP3300390A1

    公开(公告)日：2018-03-28

    申请号：EP16190753.0

    申请日：2016-09-27

    申请人： Sound Solutions International Co., Ltd.

    发明人： OTTO, Gustav ,  REINING, Friedrich ,  WOHLGENANNT, Michael

    IPC分类号： H04R7/02 ,  H04R7/04 ,  H04R7/06 ,  H04R7/10 ,  H04R7/12 ,  H04R9/02 ,  H04R9/06 ,  H04R9/10

    CPC分类号： H04R9/06 ,  H04R7/10 ,  H04R7/20 ,  H04R9/025 ,  H04R9/045 ,  H04R31/00 ,  H04R2307/025 ,  H04R2307/027 ,  H04R2307/207 ,  H04R2499/11

    摘要： The invention relates to a dynamic loudspeaker driver (42) which comprises a magnet-system (42), a membrane and a voice coil (45). The membrane comprises a semi-rigid diaphragm (43) and a flexible annulus (44) surrounding the diaphragm (43). The diaphragm (43) is movably mounted with respect to the magnet-system (42) by means of the annulus (44) and comprises a substrate (50) which comprises a first surface (51) and a second surface (52) being opposite to the first surface (51), a first layer (61) attached to and continuously covering the first surface (51), and a second layer (62) attached to and covering the second surface (52). The second layer (62) comprises a plurality of holes (63) having a predefined pattern. The voice coil (45) is attached to the diaphragm (43) and is operatively coupled with the magnet-system (42).

    摘要翻译： 本发明涉及一种动态扬声器驱动器（42），其包括磁体系统（42），隔膜和音圈（45）。 隔膜包括半刚性隔膜（43）和围绕隔膜（43）的柔性环形件（44）。 所述隔膜（43）借助所述环形空间（44）相对于所述磁体系统（42）可移动地安装并且包括衬底（50），所述衬底包括相对的第一表面（51）和第二表面（52） 到第一表面（51）的第一表面（61），附着于并连续覆盖第一表面（51）的第一层（61）以及附着并覆盖第二表面（52）的第二层（62）。 第二层（62）包括具有预定图案的多个孔（63）。 音圈（45）附接到隔膜（43）并且可操作地与磁体系统（42）耦合。