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    • 42. 发明公开
    • VIBRATION PICKUP MICROPHONE
    • MIKROFON MIT SCHWINGUNGSAUFNAHME
    • EP2129163A1
    • 2009-12-02
    • EP08720290.9
    • 2008-02-28
    • Temco Japan Co., Ltd.
    • FUKUDA, Mikio
    • H04R1/00H04R1/02H04R1/28H04R19/01
    • H04R1/222H04R1/083H04R1/14H04R1/2853H04R1/46H04R19/016H04R2460/13
    • [Problem to be Solved] To provide a high-sensitive compact vibration pickup microphone, suitably used as a talking microphone in high ambient noise environments or as a speech recognition input microphone, with high microphone sensitivity, resistance to sliding noise, and insensitivity to external noise and vibration. [Solution] A vibration pickup microphone comprising a housing 1 provided with a first space 5 and a second space 6, an external diaphragm 2 disposed over the first space 5, and a microphone unit 3 that is contained in a rear end portion of the second space having an air gap 8 maintained 6, wherein by disposing the external diaphragm 2 over it, an air chamber 7 formed in the first space 5 and an air gap 8 formed in the second space 6 are communicated via a thin passageway 4, so that vibration of voice picked up by the external diaphragm 2 is transmitted to the microphone unit 3 as sound waves, and then frequency components higher than voice frequencies within frequency components of the sound waves are attenuated in its transmitting path.
    • [待解决的问题]为了提供高灵敏度的紧凑型振动拾音麦克风,适合用作高环境噪声环境中的通话麦克风或作为语音识别输入麦克风,具有高麦克风灵敏度,抵抗滑动噪声和对外部不敏感 噪音和振动。 解决方案:一种振动拾音麦克风,包括:壳体1,其设置有第一空间5和第二空间6;设置在第一空间5上的外部隔膜2;以及麦克风单元3,其包含在第二空间5的后端部分中 具有保持6的气隙8的空间,其中通过在其上设置外部隔膜2,形成在第一空间5中的空气室7和形成在第二空间6中的气隙8经由薄通道4连通,使得 由外部隔膜2拾取的声音的振动作为声波被传送到麦克风单元3,然后在其发送路径中衰减高于声波的频率分量内的声音频率的频率分量。