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公开(公告)号：US09668058B2
公开(公告)日：2017-05-30
申请号：US14790058
申请日：2015-07-02
Inventor： Toshiyuki Matsumura , Shuji Saiki
CPC classification number: H04R7/18 , H04R31/003 , H04R2307/204 , H04R2307/207 , H04R2499/11 , H04R2499/13
Abstract: A speaker diaphragm includes: a vibrator; and a suspension adhered to an outer peripheral part of the vibrator and supporting the vibrator so that the vibrator can vibrate, at least part of the suspension including a top surface member constituting a top surface part of the suspension, a rear surface member constituting a rear surface part of the suspension, and an intermediate member between the top surface member and the rear surface member, these members being stacked, the intermediate member having a rigidity lower than that of at least one of the top surface member and the rear surface member, the top surface member having one or more first holes, the rear surface member having one or more second holes, and at least some of the first holes and second holes being dispose so as to overlap across the intermediate member in a direction in which the members are stacked.
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公开(公告)号：US09432773B2
公开(公告)日：2016-08-30
申请号：US14566704
申请日：2014-12-10
Inventor： Atsushi Sakaguchi , Shuji Saiki , Toshiyuki Matsumura
CPC classification number: H04R9/06 , H04R1/10 , H04R9/027 , H04R9/046 , H04R9/10 , H04R25/00 , H04R2499/11 , H04R2499/13
Abstract: A speaker includes a diaphragm and a magnetic circuit, a plurality of acoustic paths that provide connection between a space formed on a side including the magnetic circuit with respect to the diaphragm and a space exterior to the speaker are formed in the magnetic circuit, and the plurality of acoustic paths include a first acoustic path and a second acoustic path that differs in acoustic impedance from the first acoustic path.
Abstract translation: 扬声器包括隔膜和磁路，在磁路中形成有多个在相对于隔膜包括磁路的一侧形成的空间和扬声器外部之间形成连接的声学路径，并且 多个声学路径包括声学阻抗与第一声学路径不同的第一声学路径和第二声学路径。
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3.发明授权Loudspeaker, inner-ear headphone including loudspeaker, and hearing aid including loudspeaker 有权扬声器，包括扬声器的内耳式耳机，以及包括扬声器的助听器公开(公告)号：US09094750B2
公开(公告)日：2015-07-28
申请号：US14003466
申请日：2013-01-30
Inventor： Akiko Fujise , Shuji Saiki , Sawako Kano , Toshiyuki Matsumura , Atsushi Sakaguchi
IPC: H04R1/00 , H04R9/06 , H04R11/02 , H04R9/02 , H04R7/20 , H04R25/00 , H04R7/12 , H04R1/10 , H04R1/24 , H04R7/04 , H04R7/26
CPC classification number: H04R9/027 , H04R1/1016 , H04R1/1075 , H04R1/225 , H04R1/24 , H04R7/04 , H04R7/12 , H04R7/127 , H04R7/20 , H04R7/26 , H04R9/06 , H04R25/00 , H04R25/604
Abstract: A loudspeaker includes: a frame; a yoke fixed to the frame; a magnet fixed to the yoke; a plate fixed to an upper surface of the magnet which is opposite to a surface of the magnet which is fixed to the yoke; a vibratable voice coil arranged in a first magnetic gap formed between the yoke and the plate; a diaphragm having an outer-edge portion joined to the voice coil; and a support member supporting the diaphragm in a vibratable manner, and composed of edges, one end of each edge being fixed to the frame. The plate is composed of: a flat-plate part fixed to the upper surface of the magnet, and having, at an upper surface thereof, a planar portion extending from the outer-edge portion up to a predetermined distance; and a protruding part disposed on the flat-plate part excluding the planar portion, and protruding toward the diaphragm.
Abstract translation: 扬声器包括：一个框架; 固定在框架上的轭; 固定在磁轭上的磁铁; 固定在磁体的上表面上的板，其与固定在磁轭上的磁体的表面相对; 布置在形成在所述轭和所述板之间的第一磁隙中的可振动音圈; 隔膜，其具有接合到所述音圈的外缘部; 以及支撑构件，其以可振动的方式支撑所述隔膜，并且由边缘构成，每个边缘的一端固定到所述框架。 该板由以下部分组成：平板部分固定在磁体的上表面上，并在其上表面具有从外边缘部分延伸到预定距离的平面部分; 以及设置在除了平面部分之外的平板部分上并且朝向隔膜突出的突出部分。
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公开(公告)号：US09414151B2
公开(公告)日：2016-08-09
申请号：US14687945
申请日：2015-04-16
Inventor： Sawako Kano , Toshiyuki Matsumura , Shuji Saiki
CPC classification number: H04R1/28 , H04R1/2811 , H04R1/2857 , H04R3/04 , H04R3/08 , H04R2201/029
Abstract: A speaker system includes a speaker cabinet that has an opening, a first speaker including a first diaphragm, and at least one acoustic tube opened at both ends. When an amplitude of vibration of the first diaphragm vibrated by applying a correction AC signal together with the first AC signal to the first speaker is equalized to the amplitude of vibration of the second diaphragm, a sound pressure reproduced by vibration of the first diaphragm is equal to or lower than a sound pressure reproduced by vibration of the second diaphragm of the second speaker. This is accomplished by applying a third AC signal having a frequency equal to or higher than a minimum resonance frequency of the closed type cabinet determined by the internal volume of the closed type cabinet and the caliber of the second speaker is applied to the second speaker.
Abstract translation: 扬声器系统包括具有开口的扬声器箱，包括第一隔膜的第一扬声器和在两端开口的至少一个声管。 当通过将校正AC信号与第一AC信号一起施加到第一扬声器而振动的振动幅度与第二振动膜的振动幅度相等时，由第一振动膜的振动再现的声压相等 达到或低于由第二扬声器的第二隔膜的振动再现的声压。 这是通过施加频率等于或高于由封闭式机柜的内部容积确定的封闭式机壳的最小谐振频率的第三AC信号，并且将第二扬声器的口径应用于第二扬声器来实现的。
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公开(公告)号：US09247349B2
公开(公告)日：2016-01-26
申请号：US13927332
申请日：2013-06-26
Inventor： Shuji Saiki , Hiroyuki Takewa
CPC classification number: H04R9/027 , H04R7/04 , H04R7/20 , H04R7/24 , H04R9/022 , H04R9/043 , H04R9/047 , H04R9/06 , H04R2231/003 , H04R2307/207
Abstract: A loudspeaker includes a diaphragm that vibrates back and forth to emit a sound, a magnetic circuit that is provided on a rear side of the diaphragm and has a magnetic gap on a diaphragm side, and a voice coil that is directly or indirectly joined to the diaphragm and disposed within the magnetic gap. A magnetic fluid is loaded within the magnetic gap. Also, a plurality of first edge pieces are provided at different positions in an outer circumferential portion of the diaphragm for vibratably supporting the diaphragm, each of the first edge pieces having a non-linear cross-sectional shape.
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Patent Agency Ranking
公开(公告)号：US20200374613A1
公开(公告)日：2020-11-26
申请号：US16635326
申请日：2018-08-01
Inventor： Shuji Saiki , Yuji Matsuo , Kazuyuki Kosuda , Yuichi Kobayashi , Yasuhiro Makino
Abstract: A loudspeaker including: a magnetic circuit, a voice coil, a vibration plate, a housing, and a magnetic fluid disposed between a plate and the voice coil in a magnetic gap. The magnetic circuit includes a first flow path which passes from a vibration plate side to a rear surface. The housing includes a second flow path which extends the first flow path, and a third flow path which passes through from the vibration plate side to the second flow path. A proportion of a second area to a first area matches with a proportion of an outer area to an inner area, which is an area of the vibration plate corresponding to an inner side with respect to the voice coil.
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公开(公告)号：US10462553B2
公开(公告)日：2019-10-29
申请号：US15901898
申请日：2018-02-22
Inventor： Toshiyuki Matsumura , Akihisa Kawamura , Shuji Saiki
Abstract: A speaker device includes a first speaker unit, a first cabinet that houses the first speaker unit, and an annular portion defining a sound path that guides sound radiated from the first speaker unit to outside the first cabinet, the annular portion being positioned on a sound radiation side of the first speaker unit and arranged so as to sound a diaphragm in the first speaker unit. The speaker device also includes a second cabinet arranged inside the annular portion and spaced apart from the sound path, the sound path being annular, and a second speaker unit that radiates sound in a direction in which the first speaker unit radiates sound and that is stored in the second cabinet. The speaker device further includes a resonant portion having an aperture communicating with the sound path and defining a resonant space.
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公开(公告)号：US09820047B2
公开(公告)日：2017-11-14
申请号：US15246933
申请日：2016-08-25
Inventor： Akihisa Kawamura , Toshiyuki Matsumura , Isao Kakuhari , Shuji Saiki , Satoshi Takayama , Kazuki Honda , Takafumi Yuasa
CPC classification number: H04R3/04 , H03G5/165 , H04R1/08 , H04R3/12 , H04R29/001 , H04R29/002
Abstract: A method is provided for causing a processor included in a speaker system to execute operations. The operations include acquiring, using a measurement microphone, reflected sound information regarding an effect of sounds that are played back by a plurality of speakers having predetermined directivity and that are reflected off an object, where the plurality of speakers are included in the speaker system. The operations also include calculating correction coefficients used to correct acoustic characteristics of the plurality of speakers on the basis of the acquired reflected sound information. The operations further include correcting the acoustic characteristics of the plurality of speakers using the calculated correction coefficients.
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公开(公告)号：US09774935B2
公开(公告)日：2017-09-26
申请号：US15246958
申请日：2016-08-25
Inventor： Toshiyuki Matsumura , Akihisa Kawamura , Kazuki Honda , Takafumi Yuasa , Shuji Saiki , Satoshi Takayama
CPC classification number: H04R1/025 , H04R1/26 , H04R1/2819 , H04R1/2865 , H04R1/2896 , H04R1/345 , H04R1/403 , H04R7/127 , H04R7/18 , H04R9/025 , H04R9/046 , H04R9/06 , H04R2499/13 , H04R2499/15
Abstract: A speaker device for reproducing an audio signal includes a first speaker including a first diaphragm and a first magnetic circuit that drives the first diaphragm, where the first diaphragm reproduces an audio signal including a predetermined frequency range, a second speaker including a second diaphragm and a second magnetic circuit that drives the second diaphragm, where the second diaphragm reproduces an audio signal including a frequency range substantially the same as the predetermined frequency range, and at least one cabinet having the first speaker and the second speaker mounted therein so that radiation directions of sounds are opposite to each other. At least part of a space formed between the first speaker and the second speaker communicates with the outside of the cabinet. When the speaker device reproduces the audio signal, the first diaphragm and the second diaphragm vibrate in opposite directions.
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公开(公告)号：US09319767B2
公开(公告)日：2016-04-19
申请号：US14003892
申请日：2013-01-29
Inventor： Atsushi Sakaguchi , Shuji Saiki , Toshiyuki Matsumura , Sawako Kano , Akiko Fujise
CPC classification number: H04R1/10 , H04R1/1016 , H04R1/2811 , H04R9/027 , H04R25/02 , H04R25/48
Abstract: An earphone includes: a loudspeaker unit; a sound conductive tube which is connected to a front surface having a diaphragm included in the loudspeaker unit, and has a hole through which a sound generated from the loudspeaker unit is emitted; a housing which is connected to a back surface of the loudspeaker unit so that a space is formed between the housing and the back surface of the loudspeaker unit, and has a first air hole connecting the space to external air; a first braking part which closes a sound hole of the loudspeaker unit; and a second braking part which closes the first air hole.
Abstract translation: 耳机包括：扬声器单元; 连接到具有包括在扬声器单元中的隔膜的前表面的导电管，并且具有从扬声器单元产生的声音被发射的孔; 连接到所述扬声器单元的后表面的壳体，使得在所述壳体和所述扬声器单元的后表面之间形成空间，并且具有将所述空间连接到外部空气的第一空气孔; 闭合扬声器单元的声孔的第一制动部; 以及关闭第一空气孔的第二制动部。
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