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CN102113345A 差动麦克风 无效 - 撤回

差动麦克风
摘要：
提供一种差动麦克风。该差动麦克风(110A)具有：框体(611)，其内部形成有第一空间和第二空间；第一振动膜(113A)，其配置在框体(611)的内部。在框体(611)上形成有第一开口部(611A)和第二开口部(611B)，该第一开口部(611A)用于使第一空间与外部相连通，该第二开口部(611B)用于使第二空间与外部相连通。第一开口部(611A)及第二开口部(611B)在第一方向上的尺寸比在第二方向上的尺寸长，该第一方向与通过两个开口部的中心的直线垂直，该第二方向与通过两个开口部的中心的直线平行。
摘要（英）：

Provided is a differential microphone (110A), which includes a case (611) having a first space and a second space arranged inside; and a first oscillation film (113A) arranged inside the case (611). The case (611) has a first opening (611A) for communication between the first space and outside and a second opening (611B) for communication between the second space and outside. A dimension in a first direction which is vertical to the straight line passing through the centers of the two openings (611A, 611B) is longer than a dimension in a second direction which is parallel to the straight line passing through the center of the two openings.

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