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    • 5. 发明申请
    • MICROPHONE UNIT
    • 麦克风单元
    • US20110158450A1
    • 2011-06-30
    • US12866794
    • 2009-02-06
    • Fuminori TanakaRyusuke HoribeTakeshi InodaRikuo TakanoKiyoshi SugiyamaToshimi FukuokaMasatoshi Ono
    • Fuminori TanakaRyusuke HoribeTakeshi InodaRikuo TakanoKiyoshi SugiyamaToshimi FukuokaMasatoshi Ono
    • H04R1/02
    • H04R1/38H04R2499/11
    • To provide a downsized microphone unit in which a differential microphone is densely mounted thereon.The microphone unit has a cover portion 30 and a microphone substrate 10, in which a first substrate internal space 15 is communicated with a cover portion internal space 32 via a first substrate opening 11 and a cover portion opening 31, and is communicated with the outside via a second substrate opening 12, a second substrate internal space 16 is communicated with the cover portion internal space 32 via a third substrate opening 13 and a cover portion opening 31, and is communicated with the outside via a fourth substrate opening 14, a partition portion 20 covers a communication aperture between the first substrate opening 11 and the cover portion opening 31, and a diaphragm 22 covers at least a part of the communication aperture between the first substrate opening 11 and the cover portion opening 31.
    • 为了提供其中密集安装差分麦克风的小型麦克风单元。 麦克风单元具有盖部30和麦克风基板10,第一基板内部空间15经由第一基板开口11和盖部开口31与盖部内部空间32连通,并与外部连通 通过第二基板开口12,第二基板内部空间16经由第三基板开口13和盖部开口31与盖部内部空间32连通,并且经由第四基板开口14与外部连通,隔板 部分20覆盖第一基板开口11和盖部分开口31之间的连通孔,并且隔膜22覆盖第一基板开口11和盖部开口31之间的连通孔的至少一部分。