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    Speaker system for multichannel stereosignal reproduction
    2.
    发明授权
    Speaker system for multichannel stereosignal reproduction 失效
    用于多声道立体声信号再现的扬声器系统

    公开(公告)号：US3892917A

    公开(公告)日：1975-07-01

    申请号：US29461372

    申请日：1972-10-03

    Applicant: NIPPON MUSICAL INSTRUMENTS MFG

    Inventor： SOTOME HIROMI

    IPC: H04R5/00 ,  H04R5/02

    CPC classification number: H04R5/00 ,  H04R5/02

    Abstract: This invention relates to a multichannel stereosignal reproduction system in which a pair of speaker devices each comprising at least two speakers in a speaker box are provided. Left and right signals are applied to the two speakers, respectively, in such manner that the left and right signals are mutually in opposite phase between the speakers in one of the speaker devices and speakers in the other of the speaker devices, and wherein sound wave outputs from these speakers are composed spatially. Further the signal from one of said two speakers which is opposite in phase to the signal from the other of said two speakers may be adjusted in terms of the level of its antiphase component. Further, the speakers within each speaker device to be supplied with signals opposite in phase to each other may be placed opposite to each other in a spaced relationship and by providing a sound wave reflector within the space between these opposed speakers, sound wave outputs from the speakers can be composed spatially. In this case the composite output will be radiated uniformly, with directivity being thus eliminated.

    Abstract translation: 本发明涉及一种多声道立体声信号再现系统，其中提供了一个在扬声器箱中包括至少两个扬声器的扬声器装置。 左右信号分别以这样的方式施加到两个扬声器，使得左和右信号在扬声器装置中的一个扬声器和另一个扬声器装置中的扬声器之间的扬声器之间相互相反，并且其中声波 来自这些扬声器的输出由空间组成。 此外，可以根据其反相分量的水平来调节来自与所述两个扬声器中的另一个的信号相位相反的所述两个扬声器之一的信号。

    Loudspeaker having annular diaphragm with double voice coil
    3.
    发明授权
    Loudspeaker having annular diaphragm with double voice coil 失效
    具有双重声音线圈的环形透镜的扬声器

    公开(公告)号：US3665124A

    公开(公告)日：1972-05-23

    申请号：US3665124D

    申请日：1969-12-23

    Applicant: NIPPON MUSICAL INSTRUMENTS MFG

    Inventor： SOTOME HIROMI

    IPC: H04R9/06

    CPC classification number: H04R9/063

    Abstract: A loudspeaker comprising an annular diaphragm including a vibrating portion having an arcuate shape in cross section, such as a shape of a fraction of a circle or an ellipse, and inner and outer peripheral support portions, voice coils attached to borders between said vibrating portion and said inner and outer support portions of the diaphragm and magnetic circuit means having concentric gaps for receiving said voice coils, respectively, to drive the diaphragm in phase with said voice coils.

    Loudspeaker
    6.
    发明授权
    Loudspeaker 失效

    公开(公告)号：US3578104A

    公开(公告)日：1971-05-11

    申请号：US3578104D

    申请日：1969-05-12

    Applicant: NIPPON MUSICAL INSTRUMENTS MFG

    Inventor： SOTOME HIROMI

    IPC: H04R7/26 ,  G10K13/00

    CPC classification number: H04R7/26

    Abstract: In a loudspeaker including a cap made of relatively rigid foamed plastics such as foamed polystyrene, an improvement comprising a small piece of rubberlike elastomer having relatively high specific gravity adhered to a central portion of said cap, thereby improving its frequency characteristic especially in a high frequency sound range.

    Loudspeaker
    7.
    发明授权
    Loudspeaker 失效
    喇叭

    公开(公告)号：US3645356A

    公开(公告)日：1972-02-29

    申请号：US3645356D

    申请日：1970-12-23

    Applicant: NIPPON MUSICAL INSTRUMENTS MFG

    Inventor： SOTOME HIROMI

    IPC: H04R7/20 ,  G10K13/00 ,  H04R7/00

    CPC classification number: H04R7/20 ,  H04R2307/207

    Abstract: A loudspeaker including a diaphragm, means for driving said diaphragm, an annular suspension member of rubberlike elastic material attached to the marginal edge of said diaphragm and a supporting frame to which said suspension member is fixed, characterized in that said suspension member has a relatively large radial width and a tapered thickness which gradually decreases from the outer peripheral portion to the inner peripheral portion, and said member is fixedly connected at said outer peripheral portion to the supporting frame and at said inner peripheral portion to said marginal edge of the diaphragm.

    Abstract translation: 包括隔膜的扬声器，用于驱动所述隔膜的装置，附接到所述隔膜的边缘的橡胶状弹性材料的环形悬挂构件和固定有所述悬挂构件的支撑框架，其特征在于，所述悬挂构件具有相对大的 径向宽度和从外周部分到内周部分逐渐减小的锥形厚度，并且所述构件在所述外周部分处固定地连接到支撑框架，并且在所述内周部分处连接到所述隔膜的所述边缘。

    Loudspeaker
    8.
    发明授权
    Loudspeaker 失效

    公开(公告)号：US3603427A

    公开(公告)日：1971-09-07

    申请号：US3603427D

    申请日：1969-05-05

    Applicant: NIPPON MUSICAL INSTRUMENTS MFG

    Inventor： SOTOME HIROMI

    IPC: H04R7/02 ,  H04R7/20 ,  H04R7/26 ,  G01K13/00 ,  H04R7/00

    CPC classification number: H04R7/26 ,  H04R7/02 ,  H04R7/20 ,  H04R2307/201

    Abstract: A loudspeaker including a diaphragm of rigid, self-supporting, foamed plastic material clamped at its peripheral portion to a speaker frame, without providing increased compliance at said peripheral portion, to generate sound by bending motion of said diaphragm, said diaphragm having a soft material such as foamed or unfoamed rubberlike material (e.g. natural rubber, synthetic rubber or rubberlike plastic material) applied on at least a part of the peripheral portion at at least one side thereof, said soft material having relatively high specific gravity sufficient to suppress divided vibration of the diaphragm in low frequency sound range.

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