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    • 66. 发明申请
    • MICROPHONE UNIT
    • 麦克风单元
    • US20100142742A1
    • 2010-06-10
    • US12617837
    • 2009-11-13
    • Fuminori TanakaRyusuke HoribeTakeshi InodaMasatoshi OnoRikuo TakanoToshimi Fukuoka
    • Fuminori TanakaRyusuke HoribeTakeshi InodaMasatoshi OnoRikuo TakanoToshimi Fukuoka
    • H04R1/02H04R11/04
    • H04R19/00H04R1/38
    • A microphone unit includes: a housing; a diaphragm which is disposed in the inside of the housing; and an electric circuit portion which processes an electric signal that is generated based on a vibration of the diaphragm. In the housing, a first sound guide space which guides a sound outside the housing to a first surface of the diaphragm via a first sound hole and a second sound guide space which guides a sound outside the housing to a second surface, that is, an opposite surface of the diaphragm via a second sound hole are formed. The electric circuit portion is disposed in either one of the first sound guide space and the second sound guide space; and an acoustic resistance portion which adjusts at least one of a frequency characteristic of the first sound guide space and a frequency characteristic of the second sound guide space is formed.
    • 麦克风单元包括:壳体; 隔膜,其设置在所述壳体的内部; 以及电路部分,其处理基于所述振膜的振动而产生的电信号。 在壳体中,第一声音引导空间,其经由第一声孔将壳体外部的声音引导到隔膜的第一表面,以及将外壳外部的声音引导到第二表面的第二声音引导空间,即, 通过第二声孔形成隔膜的相对表面。 电路部分设置在第一声音引导空间和第二声音引导空间中的任一个中; 并且形成了调节第一声音引导空间的频率特性和第二声音引导空间的频率特性中的至少一个的声阻部分。