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    • 2. 发明公开
    • Portable communication apparatus and microphone device for the apparatus
    • TragbaresKommunikationsgerätund Mikrofonanordnungdafür
    • EP1298889A2
    • 2003-04-02
    • EP02021197.5
    • 2002-09-24
    • MITSUBISHI DENKI KABUSHIKI KAISHAHOSIDEN CORPORATION
    • Sugino, ShigeruSaitou, KoujiInubushi, ToshiyaNoda, ShushinNasu, KojiKamimura, Tomohiko
    • H04M1/02H04M1/19
    • H04M1/19H04M1/0214
    • The invention relates to a portable communication apparatus and a microphone device for the apparatus. In the portable communication apparatus of the invention, an openable/closable member (2) is attached in an openable and closable manner to a main unit (1) of the portable apparatus. The openable/closable member (2) incorporates a bidirectional close-talking microphone (5). An inner sound hole (26) and an outer sound hole (27) are opened in an inner wall (22) and an outer wall (24) of the openable/closable member (2), respectively. The inner wall (22) faces the front face of a diaphragm of the close-talking microphone (5) via a sound path (64), and the outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). The inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2). The portable communication apparatus of the invention can obtain a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.
    • 本发明涉及一种用于该装置的便携式通信装置和麦克风装置。 在本发明的便携式通信装置中,可打开/关闭的构件(2)以可打开和关闭的方式附接到便携式设备的主单元(1)。 可打开/关闭的构件(2)包括双向密闭式麦克风(5)。 分别在可打开/关闭构件(2)的内壁(22)和外壁(24)中分别打开内音孔(26)和外音孔(27)。 内壁(22)通过声音路径(64)面对致密麦克风(5)的隔膜的前面,外部声孔(27)面对紧密通话的隔膜的后表面 麦克风(5)通过声音路径(65)。 内部声音孔26被偏置地位于靠近可开启/关闭构件(2)的自由端的位置,外部声音孔(27)被偏置地位于接近中心的位置 可打开/关闭构件(2)的打开和关闭运动的位置。 本发明的便携式通信装置可以在打开可打开/关闭部件(2)的情况下以及关闭部件的情况下以基本相同的程度获得非常高的S / N比的语音质量。