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15 条记录 (耗时 0.009 秒)

    INFORMATION TERMINAL DEVICE
    2.
    发明公开
    INFORMATION TERMINAL DEVICE 审中-公开
    INFORMATIONSENDGERÄTEINRICHTUNG

    公开(公告)号：EP1641313A4

    公开(公告)日：2009-05-20

    申请号：EP05710054

    申请日：2005-02-10

    申请人： PANASONIC CORP

    发明人： TOMOEDA SHIGERU ,  SUMIYAMA MASAHIDE ,  NAKANO MASANORI

    IPC分类号： H04R5/02 ,  H04R1/02

    CPC分类号： H04R1/025 ,  H04R5/02 ,  H04R2499/11 ,  H04R2499/15

    摘要： An information terminal device (10) includes a main body case (50), a rectangular video display unit (60) arranged at the front face of the main body case (50), and audio output units (81, 82) arranged at a predetermined angle with respect to the video display unit (60) and having an external shape which is rectangular, elliptic, or track form. The audio output units (81, 82) are arranged symmetrically against the center line (61) of the video display unit (60) and the longer side or the longer diameter of the external shape of the respective audio output units (81, 82) is arranged in the vicinity of the opposing longer side or the shorter side of the video display unit (60).

    LOUDSPEAKER
    6.
    发明公开
    LOUDSPEAKER 审中-公开
    LAUTSPRECHER

    公开(公告)号：EP1799011A4

    公开(公告)日：2009-08-05

    申请号：EP06712566

    申请日：2006-01-30

    申请人： PANASONIC CORP

    发明人： YANO HIROSHI ,  HONDA KAZUKI ,  SUMIYAMA MASAHIDE

    IPC分类号： H04R9/04 ,  H04R1/28 ,  H04R9/02

    CPC分类号： H04R9/06 ,  H04R1/225 ,  H04R9/025 ,  H04R9/045 ,  H04R31/006

    摘要： A loudspeaker includes a frame connected to a magnetic circuit having a magnetic gap and a diaphragm having an outer circumference connected to the frame and connected around a voice coil embedded into the magnetic gap. A communication groove is provided for communicating a void portion formed between the rear surface of the diaphragm and the inner part of the voice coil, with outside. Thus, it is possible to shorten the air flow route on the diaphragm rear surface so as to reduce the air flow resistance and accordingly, to increase the reproduction sound pressure of the low range.

    摘要翻译： 扬声器包括连接到具有磁隙的磁路的框架和具有连接到框架的外周并且围绕嵌入到磁隙中的音圈连接的振动膜。 连通槽设置用于将形成在振动膜的后表面和音圈的内部之间的空隙部分与外部连通。 因此，可以缩短膜片后表面上的气流路径，从而减小气流阻力，并因此增加低频段的再现声压。

    ELECTRO-ACOUSTIC CONVERTER AND ELECTRONIC DEVICE USING THE SAME
    9.
    发明公开
    ELECTRO-ACOUSTIC CONVERTER AND ELECTRONIC DEVICE USING THE SAME 审中-公开
    电声转换器和电子设备

    公开(公告)号：EP1744587A4

    公开(公告)日：2009-01-21

    申请号：EP05751577

    申请日：2005-06-17

    申请人： PANASONIC CORP

    发明人： HONDA KAZUKI ,  YANO HIROSHI ,  SHIMOKAWATOKO TAKESHI ,  YAMASAKI KAZUYA ,  KUBO KAZUTAKA ,  SUMIYAMA MASAHIDE

    IPC分类号： H04R1/02 ,  H04R9/02

    CPC分类号： H04R9/02

    摘要： An electro-acoustic converter (35) such as a loudspeaker includes: a frame (26) connected to a magnetic circuit member (24); a diaphragm (27) connected to the frame (26); a voice coil (28) connected to the diaphragm (27) and having a part arranged in a magnetic gap (25) of the magnetic circuit member (24); a terminal (30) made of a metal plate which has been subjected to a bending processing and utilizing the spring pressure of the metal plate to bring it into contact with the power supply unit of the electronic device mounted; and a stopper (29) regulating the bending of the metal plate constituting the terminal (30) within a reversible limit value of the metal material.