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6 条记录 (耗时 0.008 秒)

    Speaker
    1.
    发明公开
    Speaker 失效
    Lautsprecher。

    公开(公告)号：EP0260705A2

    公开(公告)日：1988-03-23

    申请号：EP87113677.6

    申请日：1987-09-18

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Satoh, Katsuaki ,  Sato, Kazue ,  Murata, Kousaku ,  Tanaka, Tsuneo ,  Saiki, Shuji ,  Takayama, Satoshi ,  Takewa, Hiroyuki ,  Serikawa, Mitsuhiko ,  Ishikawa, Seiichi ,  Usuki, Sawako ,  Kimura, Yoichi ,  Obata, Shuichi

    IPC分类号： H04R1/34 ,  H04R7/04

    CPC分类号： H04R1/2834 ,  H04R1/345 ,  H04R7/04

    摘要： A speaker which is thin but which is capable of providing high-fidelity reproduction and ensuring a suitable revel of sound pressure even when it is brought close to a wall. A closed chamber is formed in the rear of a part of a diaphragm mounted in an enclosure, and an open chamber is formed in the rear of the other part of the diaphragm. The phase difference between sounds radiated from the front and rear surfaces of the diaphragm is increased as large as possible by using an acoustic duct for the sound radiated through the open cavity, thereby minimizing cancellation of sounds and improving the sound pressure level.

    摘要翻译： 扬声器是薄的，但是能够提供高保真的再现并且即使当靠近墙壁也能确保适当的声压水平。 闭合室形成在安装在外壳中的隔膜的一部分的后部，并且在隔膜的另一部分的后部形成开放室。 通过使用用于通过开放空腔辐射的声音的声导管，尽可能地增大从隔膜的前表面和后表面辐射的声音之间的相位差，从而最小化声音的消除和提高声压级。

    Sound reproducing apparatus for use in vehicle
    4.
    发明公开
    Sound reproducing apparatus for use in vehicle 失效
    Schallwiedergabe-Apparat zur Anwendung在einem Fahrzeug。

    公开(公告)号：EP0252522A2

    公开(公告)日：1988-01-13

    申请号：EP87110010.3

    申请日：1987-07-10

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Terai, Kenichi ,  Saiki, Shuji ,  Murata, Kosaku ,  Satoh, Katsuaki ,  Kimura, Yoichi ,  Nakama, Yasutoshi ,  Ogawa, Michiko ,  Obata, Shuichi

    IPC分类号： H04R1/28 ,  B60R11/02

    CPC分类号： H04R1/2857 ,  H04R1/2842 ,  H04R1/2865

    摘要： A sound reproducing apparatus for use in a vehicle having a speaker system constituted by at least one acoustic duct and a speaker unit disposed at a throat of the acoustic duct, an opening formed at the other end of the acoustic duct facing the passenger compartment of a vehicle. The apparatus is arranged such that, F0 and Fs are substantially equal to each other. Where Fs is the lowest frequency in a frequency range within which the imaginary part of the acoustic impedance at the sound radiating surface of the speaker system in the direction of the space within the passenger compartment is zero and F0 is the low-range resonance frequency of the speaker system itself in the free space.

    摘要翻译： 一种用于具有扬声器系统的车辆的声音再现装置，所述扬声器系统由设置在所述声学管道的喉部处的至少一个声学导管和扬声器单元构成，所述扬声器系统在所述声学导管的另一端形成， 车辆。 该装置被布置成使得F0和Fs彼此基本相等。 其中Fs是在扬声器系统的声辐射表面上的声阻抗的虚部在乘客室内的空间方向上为零的频率范围内的最低频率，F0是低频共振频率 扬声器系统本身在自由空间。