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    Speaker unit
    3.
    发明授权
    Speaker unit 失效
    扬声器单元

    公开(公告)号：US08687838B2

    公开(公告)日：2014-04-01

    申请号：US13255754

    申请日：2010-03-10

    申请人： Akihito Mitsui ,  Shinichi Yamada

    发明人： Akihito Mitsui ,  Shinichi Yamada

    IPC分类号： H04R1/00

    CPC分类号： H04R1/005 ,  H04R7/04 ,  H04R2307/023

    摘要： A speaker unit is realized which directly drives a vibration plate having a low density, light weight, yet sufficient rigidity with a digital audio signal, and can thereby transmit vibration of a voice coil thereof to a carbonaceous acoustic vibration plate without loss. The present invention provides a digital speaker unit including a speaker body (14) comprising a carbonaceous acoustic vibration plate (25), a delta-sigma modulator (11) and a thermometer code conversion section (12) that convert a multi-value bit digital audio signal supplied from a digital sound source (10) to a digital signal with required bits, a plurality of voice coils (24) that cause to vibrate a plurality of the carbonaceous acoustic vibration plates (25) provided in accordance with the number of digital signal bits and a driver circuit (13) that individually drives each voice coil (24) based on the digital signal.

    摘要翻译： 实现了一种扬声器单元，其直接驱动具有低密度，轻重量，并且具有数字音频信号的足够刚性的振动板，并且因此可以将其音圈的振动传输到碳质振动振动板而没有损失。 本发明提供了一种数字扬声器单元，包括扬声器主体（14），包括碳质振动板（25），Δ-Σ调制器（11）和温度计代码转换部分（12），其转换多值位数字 音频信号从数字声源（10）提供到具有所需位的数字信号;多个音圈（24），其使得根据数字的数量提供的多个碳质振动板（25）振动; 信号位和驱动电路（13），其根据数字信号分别驱动每个音圈（24）。

    Carbonaceous acoustic diaphragm and method for manufacturing the same
    4.
    发明授权
    Carbonaceous acoustic diaphragm and method for manufacturing the same 有权
    碳质隔膜及其制造方法

    公开(公告)号：US08544595B2

    公开(公告)日：2013-10-01

    申请号：US13133360

    申请日：2009-12-08

    申请人： Takeshi Suzuki ,  Atsunori Satake ,  Noboru Kanba ,  Akihito Mitsui ,  Yoshihisa Suda

    发明人： Takeshi Suzuki ,  Atsunori Satake ,  Noboru Kanba ,  Akihito Mitsui ,  Yoshihisa Suda

    IPC分类号： G10K13/00

    CPC分类号： H04R7/02 ,  H04R2307/023 ,  H04R2307/029 ,  H04R2499/11

    摘要： A carbonaceous acoustic diaphragm whose density is reduced while retaining the required stiffness is provided. Carbon nanofibers and spherical particles of PMMA are mixed into a carbon-containing resin such as a polyvinyl chloride resin, and the mixture is carbonized to vaporize the spherical particles of PMMA, thereby forming a porous structure having pores with the carbon nanofibers in a powdered form uniformly dispersed through amorphous carbon. By forming a multilayer structure by combining the porous layer with a layer that does not use PMMA, the density can be further reduced while retaining the stiffness.

    摘要翻译： 提供了一种在保持所需刚度的同时减小密度的碳质隔膜。 将碳纳米纤维和PMMA的球形颗粒混合到诸如聚氯乙烯树脂的含碳树脂中，并将该混合物碳化以蒸发PMMA的球形颗粒，从而形成具有碳纳米纤维的孔的多孔结构，其形式为粉末形式 通过无定形碳均匀分散。 通过将多孔层与不使用PMMA的层组合形成多层结构，可以进一步降低密度同时保持刚度。

    SPEAKER UNIT
    5.
    发明申请
    SPEAKER UNIT 失效
    扬声器单元

    公开(公告)号：US20120033837A1

    公开(公告)日：2012-02-09

    申请号：US13255754

    申请日：2010-03-10

    申请人： Akihito Mitsui ,  Shinichi Yamada

    发明人： Akihito Mitsui ,  Shinichi Yamada

    IPC分类号： H04R1/00

    CPC分类号： H04R1/005 ,  H04R7/04 ,  H04R2307/023

    摘要： A speaker unit is realized which directly drives a vibration plate having a low density, light weight, yet sufficient rigidity with a digital audio signal, and can thereby transmit vibration of a voice coil thereof to a carbonaceous acoustic vibration plate without loss. The present invention provides a digital speaker unit including a speaker body (14) comprising a carbonaceous acoustic vibration plate (25), a delta-sigma modulator (11) and a thermometer code conversion section (12) that convert a multi-value bit digital audio signal supplied from a digital sound source (10) to a digital signal with required bits, a plurality of voice coils (24) that cause to vibrate a plurality of the carbonaceous acoustic vibration plates (25) provided in accordance with the number of digital signal bits and a driver circuit (13) that individually drives each voice coil (24) based on the digital signal.

    摘要翻译： 实现了一种扬声器单元，其直接驱动具有低密度，轻重量，并且具有数字音频信号的足够刚性的振动板，并且因此可以将其音圈的振动传输到碳质振动振动板而没有损失。 本发明提供了一种数字扬声器单元，包括扬声器主体（14），包括碳质振动板（25），Δ-Σ调制器（11）和温度计代码转换部分（12），其转换多值位数字 音频信号从数字声源（10）提供到具有所需位的数字信号;多个音圈（24），其使得根据数字的数量提供的多个碳质振动板（25）振动; 信号位和驱动电路（13），其根据数字信号分别驱动每个音圈（24）。

    CARBONACEOUS ACOUSTIC DIAPHRAGM AND METHOD FOR MANUFACTURING THE SAME
    6.
    发明申请
    CARBONACEOUS ACOUSTIC DIAPHRAGM AND METHOD FOR MANUFACTURING THE SAME 有权
    碳酸锂透镜及其制造方法

    公开(公告)号：US20110240401A1

    公开(公告)日：2011-10-06

    申请号：US13133360

    申请日：2009-12-08

    申请人： Takeshi Suzuki ,  Atsunori Satake ,  Noboru Kanba ,  Akihito Mitsui ,  Yoshihisa Suda

    发明人： Takeshi Suzuki ,  Atsunori Satake ,  Noboru Kanba ,  Akihito Mitsui ,  Yoshihisa Suda

    IPC分类号： H04R7/00 ,  C01B31/00 ,  B82Y30/00

    CPC分类号： H04R7/02 ,  H04R2307/023 ,  H04R2307/029 ,  H04R2499/11

    摘要： A carbonaceous acoustic diaphragm whose density is reduced while retaining the required stiffness is provided. Carbon nanofibers and spherical particles of PMMA are mixed into a carbon-containing resin such as a polyvinyl chloride resin, and the mixture is carbonized to vaporize the spherical particles of PMMA, thereby forming a porous structure having pores with the carbon nanofibers in a powdered form uniformly dispersed through amorphous carbon. By forming a multilayer structure by combining the porous layer with a layer that does not use PMMA, the density can be further reduced while retaining the stiffness.

    摘要翻译： 提供了一种在保持所需刚度的同时减小密度的碳质隔膜。 将碳纳米纤维和PMMA的球形颗粒混合到诸如聚氯乙烯树脂的含碳树脂中，并将该混合物碳化以蒸发PMMA的球形颗粒，从而形成具有碳纳米纤维的孔的多孔结构，其形式为粉末形式 通过无定形碳均匀分散。 通过将多孔层与不使用PMMA的层组合形成多层结构，可以进一步降低密度同时保持刚度。