Condenser microphone unit and condenser microphone
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United States of America Patent
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Feb 4, 2014
Grant Date -
Oct 4, 2012
app pub date -
Mar 22, 2012
filing date -
Mar 29, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A condenser microphone unit includes a diaphragm, a diaphragm ring, a fixed electrode, a casing unit accommodating the diaphragm ring, the diaphragm, and the fixed electrode. A condenser microphone includes the condenser microphone unit. The diaphragm ring is indirectly fixed to the interior of the unit casing through a fixing ring fixed to the unit casing. The fixing ring has a planar ring portion and a plurality of projections projecting from the internal periphery of the ring portion and provided in a circumferential direction. The plurality of projections urges the diaphragm ring toward the fixed electrode.
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