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    Speaker diaphragm molded from poly-biphenol phthalate type resin film
    2.
    发明授权
    Speaker diaphragm molded from poly-biphenol phthalate type resin film 失效
    扬声器隔膜由聚邻苯二甲酸双苯酚型树脂膜成型

    公开(公告)号：US4173701A

    公开(公告)日：1979-11-06

    申请号：US836734

    申请日：1977-09-26

    申请人： Kosaku Murata ,  Satoshi Takayama ,  Hirotoshi Niguchi

    发明人： Kosaku Murata ,  Satoshi Takayama ,  Hirotoshi Niguchi

    IPC分类号： H04R7/02

    CPC分类号： H04R7/02

    摘要： A speaker diaphragm molded from a poly-bisphenol phthalate type plastic film having ester linkages prepared from an aromatic dicarboxylic acid such as isophthalic acid or terephthalic acid or a mixture thereof and a bifunctional phenol such as bisphenol A. This speaker diaphragm has an excellent low-pitched sound reproducing performance and is further featured by the flat acoustic pressure-frequency characteristic and improved transduce efficiency.

    摘要翻译： 由具有由芳族二羧酸如间苯二甲酸或对苯二甲酸或其混合物和双官能苯酚如双酚A制备的酯键的聚双酚邻苯二甲酸酯型塑料膜模制的扬声器隔膜。该扬声器隔膜具有优异的低分子量 具有声音再现性能，并具有平面声压特性和转换效率的特点。

    Speaker system
    3.
    发明授权
    Speaker system 有权
    扬声器系统

    公开(公告)号：US06739424B2

    公开(公告)日：2004-05-25

    申请号：US10054339

    申请日：2002-01-22

    申请人： Takashi Ogura ,  Kosaku Murata

    发明人： Takashi Ogura ,  Kosaku Murata

    IPC分类号： H05K500

    CPC分类号： H04R9/063 ,  H04R1/403 ,  H04R17/00

    摘要： A speaker system includes a first speaker; a second speaker; and a first spacer for separating the first speaker and the second speaker from each other so that the first speaker and the second speaker face each other. The first speaker and the second speaker are located so that opposing faces of the first speaker and the second speaker output sounds of an identical phase. The first speaker, the second speaker and the first spacer form a first sound path through which the sounds output from the opposing faces of the first speaker and the second speaker pass. The speaker system according to the present invention includes n number speakers and (n−1) number of spacers and can be arranged so that the opposing faces of even-numbered speakers and odd-numbered speakers output sounds of an identical phase.

    摘要翻译： 扬声器系统包括：第一扬声器; 第二个发言者 以及用于将第一扬声器和第二扬声器彼此分离以使得第一扬声器和第二扬声器彼此面对的第一间隔件。 第一扬声器和第二扬声器被定位成使得第一扬声器和第二扬声器的相对面输出相同相位的声音。 第一扬声器，第二扬声器和第一间隔件形成第一声道，通过该第一声道从第一扬声器和第二扬声器的相对面输出的声音通过。 根据本发明的扬声器系统包括n个扬声器和（n-1）个隔片，并且可以布置成使得偶数扬声器和奇数扬声器的相对面输出相同相位的声音。

    Speaker system with image projection screen
    4.
    发明授权
    Speaker system with image projection screen 失效
    带影像投影屏的扬声器系统

    公开(公告)号：US5025474A

    公开(公告)日：1991-06-18

    申请号：US249954

    申请日：1988-09-27

    申请人： Tsuneo Tanaka ,  Kazue Sato ,  Hiroyuki Takewa ,  Akira Kurozuka ,  Tadashi Tamura ,  Katsuji Hattori ,  Satoshi Takayama ,  Kosaku Murata ,  Katsuaki Satoh ,  Mituhiko Serikawa ,  Youichi Kimura ,  Shuichi Obata

    发明人： Tsuneo Tanaka ,  Kazue Sato ,  Hiroyuki Takewa ,  Akira Kurozuka ,  Tadashi Tamura ,  Katsuji Hattori ,  Satoshi Takayama ,  Kosaku Murata ,  Katsuaki Satoh ,  Mituhiko Serikawa ,  Youichi Kimura ,  Shuichi Obata

    IPC分类号： G03B21/56 ,  H04R1/02 ,  H04R7/04 ,  H04R9/06

    CPC分类号： H04R1/02 ,  G03B21/565 ,  H04R7/04 ,  H04R9/063

    摘要： A speaker system has an acoustic diaphragm and an image projection screen provided on a surface of the diaphragm integrally therewith so as to enable the user to enjoy both realistic image on the screen and powerful sound reproduced through the diaphragm. The rear surface of the diaphragm is closed at a peripheral portion thereof while the central portion of the rear surface of the diaphragm is opened to the exterior, so that the speaker system can provide a high level of reproduced sound pressure in low-pitched region, while the thickness of the speaker is reduced remarkably. The diaphgram can be driven by a plurality of driving units so that the speaker system can operate only with an ordinary stereophonic amplifier. The diaphragm can be composed of a pair of diaphragm elements capable of vibrating independently of each other and the screen may be integrally and commonly attached to the surfaces of these diaphragm elements in such a manner as to allow the diaphragm elements to vibrate independently of each other, whereby the speaker system can operate in stereophonic mode. Any variation in the acoustic characteristic attributable to variation in the condition of installation is compensated for by a change in the ratio of the opened area of the rear surface of the diaphragm to the whole effective vibration area or by a selective provision of a sound absorbing member on the rear side of the cabinet.

    摘要翻译： 扬声器系统具有隔膜和与其一体地设置在隔膜表面上的图像投影屏幕，以使用户能够欣赏屏幕上的逼真图像和通过隔膜再现的强大声音。 隔膜的后表面在其周边部分封闭，同时隔膜的后表面的中心部分向外开放，从而扬声器系统可以在低音区域提供高水平的再现声压， 而扬声器的厚度显着降低。 可以通过多个驱动单元来驱动该图像，使得扬声器系统只能用普通的立体声放大器操作。 隔膜可以由能够彼此独立地振动的一对隔膜元件构成，并且屏幕可以一体地并且共同地附接到这些隔膜元件的表面，以允许隔膜元件彼此独立地振动 由此扬声器系统可以以立体声模式操作。 通过改变隔膜后表面的开口面积与整个有效振动面积之间的比例，或通过选择性地设置吸音构件来补偿由于安装条件的变化引起的声学特性的任何变化 在机柜的后侧。

    Diaphragm for acoustic equipment
    5.
    发明授权
    Diaphragm for acoustic equipment 失效
    声学设备隔膜

    公开(公告)号：US4273900A

    公开(公告)日：1981-06-16

    申请号：US55780

    申请日：1979-07-09

    申请人： Kosaku Murata ,  Satoshi Takayama ,  Mitsuru Ieki

    发明人： Kosaku Murata ,  Satoshi Takayama ,  Mitsuru Ieki

    IPC分类号： C08G63/672 ,  C08J5/00 ,  G10K13/00 ,  H04R7/02 ,  C08L67/02

    CPC分类号： G10K13/00 ,  C08G63/672 ,  H04R7/02 ,  Y10T428/31786

    摘要： A diaphragm for acoustic equipment molded from a composition mainly consisting of a polyester-polyether block copolymer prepared by condensing a polytetramethylene-terephthalate with a poly(tetramethyleneoxide)glycol or any other polyester-polyether block copolymer. This diaphragm for acoustic equipment has an excellent low-pitched sound reproducing performance and flat acoustic pressure-frequency characteristics.

    摘要翻译： 用于由主要由聚四亚甲基对苯二甲酸乙二醇酯缩合聚四亚甲基对苯二甲酸酯或其它聚酯 - 聚醚嵌段共聚物制备的聚酯 - 聚醚嵌段共聚物组成的组合物模制的声学设备隔膜。 用于声学设备的隔膜具有优异的低音声音再现性能和平坦的声压频率特性。