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公开(公告)号：US08340329B2
公开(公告)日：2012-12-25
申请号：US12863574
申请日：2009-02-02
申请人： Takashi Ogura , Tatsuhiko Tokuda
发明人： Takashi Ogura , Tatsuhiko Tokuda
摘要： A purpose of the invention is to provide a piezoelectric speaker that can serve as an antenna and can be used for frequencies in the MHz band, thereby it is possible to suppress enlarging of the size due to use of the piezoelectric speaker also as the antenna to a minimum level. The antenna (4) is provided on a frame (2a) that is a peripheral edge portion of the diaphragm (2). With this configuration, enlarging of the size can be suppressed to a minimum level while using the piezoelectric speaker also as the antenna, and it is possible to achieve space saving in a miniature electronic apparatus such as a mobile phone or the like when the piezoelectric speaker is adopted to the miniature electronic apparatus. In addition, the antenna (4) is a loop antenna formed in a loop shape. With this configuration, the piezoelectric speaker can be used for frequencies in the MHz band, which is used in, for example, a noncontact IC card technology. Further, a magnetic material sheet (5) is provided on the other face of the frame (2a) so as to oppose to the antenna (4). With this configuration, it is possible to suppress reduction of the reception sensitivity at a time when a metallic material is placed in the vicinity of the antenna (4).
摘要翻译： 本发明的目的是提供一种能够用作天线的压电扬声器，并且可以用于MHz频带中的频率，从而可以抑制由于使用压电扬声器而引起的尺寸的放大，也可以作为天线 最低水平 天线（4）设置在作为隔膜（2）的周缘部的框架（2a）上。 利用这种结构，当将压电扬声器用作天线时，可以将尺寸的扩大抑制到最小水平，并且当压电扬声器等的微型电子装置可以实现节省空间的可能性 被采用于微型电子设备。 此外，天线（4）是形成为环形的环形天线。 利用这种配置，压电扬声器可用于例如用于非接触式IC卡技术的MHz频带中的频率。 此外，在框架（2a）的另一面上设置与天线（4）相对的磁性材料片（5）。 利用这种结构，可以抑制金属材料放置在天线（4）附近时的接收灵敏度的降低。
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公开(公告)号：US20100290650A1
公开(公告)日：2010-11-18
申请号：US12863574
申请日：2009-02-02
申请人： Takashi Ogura , Tatsuhiko Tokuda
发明人： Takashi Ogura , Tatsuhiko Tokuda
摘要： A purpose of the invention is to provide a piezoelectric speaker that can serve as an antenna and can be used for frequencies in the MHz band, thereby it is possible to suppress enlarging of the size due to use of the piezoelectric speaker also as the antenna to a minimum level. The antenna (4) is provided on a frame (2a) that is a peripheral edge portion of the diaphragm (2). With this configuration, enlarging of the size can be suppressed to a minimum level while using the piezoelectric speaker also as the antenna, and it is possible to achieve space saving in a miniature electronic apparatus such as a mobile phone or the like when the piezoelectric speaker is adopted to the miniature electronic apparatus. In addition, the antenna (4) is a loop antenna formed in a loop shape. With this configuration, the piezoelectric speaker can be used for frequencies in the MHz band, which is used in, for example, a noncontact IC card technology. Further, a magnetic material sheet (5) is provided on the other face of the frame (2a) so as to oppose to the antenna (4). With this configuration, it is possible to suppress reduction of the reception sensitivity at a time when a metallic material is placed in the vicinity of the antenna (4).
摘要翻译： 本发明的目的是提供一种能够用作天线的压电扬声器，并且可以用于MHz频带中的频率，从而可以抑制由于使用压电扬声器而引起的尺寸的放大，也可以作为天线 最低水平 天线（4）设置在作为隔膜（2）的周缘部的框架（2a）上。 利用这种结构，当将压电扬声器用作天线时，可以将尺寸的扩大抑制到最小水平，并且当压电扬声器等的微型电子装置可以实现节省空间的可能性 被采用于微型电子设备。 此外，天线（4）是形成为环形的环形天线。 利用这种配置，压电扬声器可用于例如用于非接触式IC卡技术的MHz频带中的频率。 此外，在框架（2a）的另一面上设置与天线（4）相对的磁性材料片（5）。 利用这种结构，可以抑制金属材料放置在天线（4）附近时的接收灵敏度的降低。
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公开(公告)号：US20110069855A1
公开(公告)日：2011-03-24
申请号：US12994121
申请日：2009-01-27
申请人： Tatsuhiko Tokuda , Tomoya Kimura , Teruyasu Sada
发明人： Tatsuhiko Tokuda , Tomoya Kimura , Teruyasu Sada
IPC分类号： H04R1/02
CPC分类号： H04M1/18 , H04M1/03 , H04R1/028 , H04R1/086 , H04R2499/11
摘要： Disclosed is an electronic apparatus which can ensure waterproofness or dustproofness when a rectangular electroacoustic transducer is employed, and can prevent both distortion of voice and leakage of sound at the same time. A first casing (101) of the electronic apparatus has sound holes (110). A film member (103) is substantially circular and provided between the sound holes (110) and an electroacoustic transducer (107). A planar member (105) is provided between the film member (103) and the electroacoustic transducer (107) and has second sound holes (111). The electroacoustic transducer (107) is substantially rectangular and generates voice.
摘要翻译： 公开了一种电子设备，其可以在使用矩形电声换能器时确保防水性或防尘性，并且可以同时防止声音的失真和声音的泄漏。 电子设备的第一壳体（101）具有音孔（110）。 膜构件（103）基本上是圆形的并且设置在声孔（110）和电声换能器（107）之间。 平面构件（105）设置在薄膜构件（103）和电声换能器（107）之间并具有第二声孔（111）。 电声换能器（107）基本上是矩形并产生声音。
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公开(公告)号：US20070297637A1
公开(公告)日：2007-12-27
申请号：US11572499
申请日：2005-07-29
申请人： Shinya Sugiyama , Tatsuhiko Tokuda , Yukinari Inoue , Masaki Amie
发明人： Shinya Sugiyama , Tatsuhiko Tokuda , Yukinari Inoue , Masaki Amie
CPC分类号： H04R1/025 , H04M1/03 , H04M1/035 , H04R2400/03 , H04R2499/11
摘要： Provided is a speaker unit, which is enabled by a simple constitution to retain characteristics such as a satisfactory output sound pressure. The speaker unit 100 has a frame including a first casing 11 and a second casing 14. A sound hole 12 is formed at the center of the upper face of the first casing 11, and a fixing portion 13 is formed on the inner face side. Between the fixing portion 13 and the second casing 14, there is interposed a vibration absorbing member 15. This vibration absorbing member 15 stabilizes the arrangement of a speaker 10, and absorbs the mechanical vibrations to be generated from the speaker 10 at the action time of the speaker 10, thereby to vibrate the speaker 10, the first casing 11 and the fixing portion 13 homogeneously. As a result, the sound to be emitted from the speaker 10 through the sound hole 12 and the sound to be emitted by the mechanical vibrations transmitted from the speaker 10, through the first casing 11 are efficiently emitted.
摘要翻译： 提供了一种扬声器单元，其能够通过简单的构造来保持诸如令人满意的输出声压的特性。 扬声器单元100具有包括第一壳体11和第二壳体14的框架。在第一壳体11的上表面的中心处形成有声孔12，并且在内表面侧形成有固定部13。 在固定部分13和第二壳体14之间设置有一个振动吸收部件15.该振动吸收部件15使扬声器10的布置稳定，并且在扬声器10的动作时刻吸收从扬声器10产生的机械振动 扬声器10，从而使扬声器10，第一壳体11和固定部13均匀地振动。 结果，有效地发射从扬声器10通过声孔12发出的声音和通过第一壳体11从扬声器10传递的机械振动而发出的声音。
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