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    • 4. 发明申请
    • ELECTROMAGNETIC TRANSDUCER
    • 电磁传感器
    • US20100214047A1
    • 2010-08-26
    • US12675929
    • 2008-10-20
    • Shinichi SakaiSeiki SuzukiKanji Shinkawa
    • Shinichi SakaiSeiki SuzukiKanji Shinkawa
    • H01F7/02
    • H04R9/047
    • Two layers in each of which a plurality of rod-like permanent magnets each having a width Wm, a thickness Tm and a predetermined length are aligned on a plane in such a way that they have opposite magnetic pole orientations alternately and are aligned at a fixed pole pitch τp are arranged to be opposed to each other with the magnetic pole orientation of each magnet in one of the layers being identical to that of the opposing magnet in the other layer, and with the opposing surfaces of the magnets being spaced a distance 2×lg apart from each other, and a vibrating membrane on which coils each having a conductive pattern are arranged is placed in a gap between any two adjacent rod-like permanent magnets in each of the above-mentioned two layers. The arrangement of the rod-like permanent magnets is optimized by using Wm, Tm, τp, and lg.
    • 每个具有宽度Wm,厚度Tm和预定长度的多个棒状永磁体的两层在一个平面上对准,使得它们具有相反的磁极取向交替并且在固定的 极间距τp被布置为彼此相对,其中一个层中的每个磁体的磁极取向与另一层中的相对磁体的磁极取向相同,并且磁体的相对表面间隔开距离2 ×lg,并且在其上布置有各自具有导电图案的线圈的振动膜放置在上述两层中的每一个中的任何两个相邻的棒状永磁体之间的间隙中。 通过使用Wm,Tm,τp和lg优化棒状永磁体的布置。
    • 8. 发明授权
    • Electromagnetic transducer
    • 电磁换能器
    • US08222984B2
    • 2012-07-17
    • US12675929
    • 2008-10-20
    • Shinichi SakaiSeiki SuzukiKanji Shinkawa
    • Shinichi SakaiSeiki SuzukiKanji Shinkawa
    • H01F7/00
    • H04R9/047
    • Two layers of a plurality of rod-like permanent magnets each having a width Wm, a thickness Tm and a predetermined length are aligned on a plane in such a way that they have opposite magnetic pole orientations alternately and are aligned at a fixed pole pitch τp are arranged to be opposed to each other with the magnetic pole orientation of each magnet in one of the layers being identical to that of the opposing magnet in the other layer. The opposing surfaces of the magnets are spaced a distance 2×lg from each other, and a vibrating membrane on which coils each having a conductive pattern are arranged is placed in a gap between any two adjacent rod-like permanent magnets in each of the two layers, where lg is a distance from the vibrating membrane to the surface of a magnet. The arrangement of the rod-like permanent magnets is optimized by using Wm, Tm, τp, and lg.
    • 每个具有宽度Wm,厚度Tm和预定长度的多个棒状永磁体的两层在一个平面上对准,使得它们具有相反的磁极取向并且以固定的极点间距τp 被布置成彼此相对,其中一个层中的每个磁体的磁极取向与另一层中的相对磁体的磁极取向相同。 磁体的相对表面彼此间隔2×lg,并且在其上布置有各自具有导电图案的线圈的振动膜被放置在两个相邻的棒状永久磁铁中的每一个中的间隙中 层,其中lg是从振动膜到磁体表面的距离。 通过使用Wm,Tm,τp和lg优化棒状永磁体的布置。
    • 9. 发明授权
    • Speaker system
    • 扬声器系统
    • US6148088A
    • 2000-11-14
    • US148334
    • 1998-09-04
    • Seiki SuzukiNoboru Kyouno
    • Seiki SuzukiNoboru Kyouno
    • H04R9/04H04R1/28H04R3/00H04R3/14H04R25/00
    • H04R3/007
    • In a speaker system employing a bass reflex or Kelton type cabinet intends to solve deterioration in efficiency of a speaker caused by an increase in impedance otherwise occurring on both sides of the antiresonance frequency, and to improve the sound radiating efficiency. The speaker system comprises a plurality of dual-voice-coil speaker units (20) which are attached to a bass reflex or Kelton type cabinet (50) and made up of first voice coils (21) connected in parallel to each other with the same polarities joined into one terminal and second voice coils (22) connected in parallel to each other with their same polarities joined into one terminal, and one impedance compensation circuit (10) connected in series to the plurality of second voice coils, which are connected in parallel to each other, for thereby keeping constant the input impedance as a parameter of the speaker system.
    • 在采用低音反射或Kelton型机箱的扬声器系统中,旨在解决由于反共振频率两侧出现的阻抗增加引起的扬声器效率的劣化,并且提高了声辐射效率。 扬声器系统包括多个双音圈扬声器单元(20),其连接到低音反射或凯尔顿型机壳(50),并由与之相同并联的第一音圈(21)组成 连接成一个端子的极性和第二音圈(22),其以相同的极性彼此并联连接到一个端子中,以及一个阻抗补偿电路(10),其串联连接到多个第二音圈 彼此平行,从而保持输入阻抗恒定作为扬声器系统的参数。