公开(公告)号：JP2008122686A

公开(公告)日：2008-05-29

申请号：JP2006306745

申请日：2006-11-13

Applicant: Fps:Kk ,  Inc Engineering Co Ltd ,  Takenaka Komuten Co Ltd ,  Tokkyokiki Corp ,  株式会社アイ・エヌ・シー・エンジニアリング ,  株式会社エフ・ピー・エス ,  株式会社竹中工務店 ,  特許機器株式会社

Inventor： NAKAJIMA TATSUMI ,  SUZUKI KAZUNORI ,  MIYAZAKI TETSUYA ,  KOBAYASHI KUNIYUKI ,  MATSUDA TAKASHI ,  OBA NORIO

IPC: G10K11/178

Abstract: PROBLEM TO BE SOLVED: To provide a noise reduction device capable of always maintaining noise reduction effect at a control point according to sound speed change caused by temperature change, even when a filter characteristic is specified by including a characteristic not affected by the sound speed.
SOLUTION: The noise reduction device includes: a coefficient shift filter circuit 11b for generating the signal of a control speaker 2, which generates control sound for reducing noise at the control point C, according to a noise signal; an initial temperature storage circuit 12 for storing an initial temperature T
0 in which the noise reduction effect becomes maximum at the control point C, when an initial filter coefficient is set to the coefficient shift filter circuit 11b; and a shift number calculation circuit 14 for shifting the filter coefficient by calculating the shift number s of the coefficient shift filter circuit 11b according to time difference between time until noise sound wave reaches a sensor microphone 1 from a noise source S, and time until it reaches the control speaker 2 from the noise source S, according to the initial temperature T
0 and a current temperature T
P .
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种噪声降低装置，其能够根据由温度变化引起的声速变化总是保持控制点的降噪效果，即使当通过包括不受 声速 解决方案：噪声降低装置包括：系数移位滤波器电路11b，用于根据噪声信号产生控制扬声器2的信号，该控制扬声器2产生用于降低控制点C处的噪声的控制声音; 初始温度存储电路12，用于在将初始滤波器系数设定为系数移位滤波器电路11b时，存储在控制点C中降噪效果变为最大的初始温度T 0 以及移位数计算电路14，用于通过根据从噪声源S到噪声声波到达传感器麦克风1的时间之间的时间差计算系数移位滤波器电路11b的移位数s以及直到它的时间来移位滤波器系数 根据初始温度T 0 和当前温度T P 从噪声源S到达控制扬声器2。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008113367A

公开(公告)日：2008-05-15

申请号：JP2006296372

申请日：2006-10-31

Applicant: Fps:Kk ,  株式会社エフ・ピー・エス

Inventor： TORII YOSHIHIKO ,  KOBAYASHI KUNIYUKI

IPC: H04R9/00 ,  H04R7/04 ,  H04R9/02 ,  H04R9/04

Abstract: PROBLEM TO BE SOLVED: To enlarge the amplitude of a vibrating surface in simple configuration.
SOLUTION: Supporting surfaces 52B-52E of a vibrating film 50 are deformed by buckling, so that a vibrating surface 54 is considerably displaced (amplitude). Therefore, an electric signal representing acoustics desired to be generated is electrified to a coil, so that the vibrating film is vibrated in response to the electric signal and an acoustic signal can be generated. Namely, the amplitude of the vibrating surface 54 can be enlarged in simple configuration without increasing the number of components. Thus, sound pressure can be increased. Furthermore, lower-register reproducibility also becomes excellent.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：以简单的结构放大振动面的振幅。 解决方案：振动膜50的支撑表面52B-52E通过弯曲变形，使得振动表面54显着位移（振幅）。 因此，希望产生表示声学的电信号对线圈通电，使得振动膜响应于电信号而振动，并且可以产生声信号。 也就是说，在不增加部件数量的情况下，能够以简单的结构扩大振动面54的振幅。 因此，可以提高声压。 此外，较低寄存器的再现性也变得优异。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2011130361A

公开(公告)日：2011-06-30

申请号：JP2009289439

申请日：2009-12-21

Applicant: Fps:Kk ,  株式会社エフ・ピー・エス

Inventor： KOBAYASHI KUNIYUKI ,  HORI MASASHI

IPC: H04R9/06 ,  B60R11/02 ,  H04R1/02 ,  H04R7/04 ,  H04R9/02

CPC classification number: H04R3/02

Abstract: PROBLEM TO BE SOLVED: To provide a composite speaker which can obtain a voice output larger than a prior art plate or planar speaker when voice signals having the same intensity are input.
SOLUTION: The composite speaker includes a single magnet or a plurality of magnets arranged to be spaced at a predetermined interval from each other, a yoke forming a magnetic circuit having a magnetic gap between the magnets, voice coils each arranged in each gap between the magnets and the yoke to be intersected with the magnetic circuit, a diaphragm with one surface fixed to the voice coils, a frame for supporting the diaphragm at the peripheral edge of the diaphragm and accommodating the magnets and the yoke, a speaker base for fixing the frame at one side opposed to the diaphragm supporting side for the frame, and a phase rotational member provided between the speaker base and the yoke as an elastic member. A voice is issued from both of the diaphragm and the speaker base.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供当输入具有相同强度的语音信号时，可以获得比现有技术的板或平面扬声器更大的语音输出的复合扬声器。 解决方案：复合扬声器包括以预定间隔彼此隔开布置的单个磁体或多个磁体，形成磁体之间具有磁隙的磁轭，每个间隔布置的音圈 在与磁路相交的磁体和磁轭之间，具有一个表面固定在音圈上的隔膜，用于在隔膜的周边边缘处支撑隔膜并容纳磁体和磁轭的框架，用于 在与框架的隔膜支撑侧相对的一侧固定框架，以及设置在扬声器基座和轭架之间的相位旋转构件作为弹性构件。 从隔膜和扬声器座两者发出声音。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2013224531A

公开(公告)日：2013-10-31

申请号：JP2012096539

申请日：2012-04-20

Applicant: Fps:Kk ,  株式会社エフ・ピー・エス

Inventor： HORI MASASHI ,  KOBAYASHI KUNIYUKI ,  NAKABAYASHI TORU

IPC: E01F9/011

Abstract: PROBLEM TO BE SOLVED: To provide an oncoming vehicle warning system for surely communicating a warning even to a vehicle under high speed traveling, and for reducing a noise pollution to neighborhoods.SOLUTION: The oncoming vehicle warning system includes: a plane sound source speaker 51 installed at the upper part of the center of a road lane for emitting a plane wave obliquely downward toward a vehicle traveling on a road lane; a speed sensor 52 for measuring the speed of a vehicle traveling toward the plane sound source speaker 51 on the road lane; a control board 55 and an amplifier 56 for generating a voice signal, and for inputting the voice signal to the plane sound source speaker; and the control board 55 to which the measurement result of the speed sensor 52 is input for, when the vehicle speed is a predetermined speed or more, driving the control board 55 to make the plane sound source speaker 51 sound.

Abstract translation: 要解决的问题：提供即将到来的车辆警报系统，即使对高速行驶的车辆进行通知，也可以减少对社区的噪音污染。解决方案：迎面而来的车辆警告系统包括：平面声源扬声器51 安装在道路车道中心的上部，以向道路车辆行驶的车辆倾斜地向下射出平面波; 速度传感器52，用于测量在道路车道上朝向平面声源扬声器51行驶的车辆的速度; 用于产生语音信号的控制板55和放大器56，并且用于将声音信号输入到平面声源扬声器; 以及当车速为预定速度以上时输入速度传感器52的测量结果的控制板55，驱动控制板55使平面声源扬声器51发声。

公开(公告)号：JP2011109336A

公开(公告)日：2011-06-02

申请号：JP2009261182

申请日：2009-11-16

Applicant: Fps:Kk ,  Waseda Educational Engineering:Kk ,  株式会社エフ・ピー・エス ,  株式会社早稲田エデュケイショナル・エンジニアリング

Inventor： KOBAYASHI KUNIYUKI ,  HORI MASASHI ,  NAGANO MOMOKO

IPC: H04R9/06 ,  H04N5/60 ,  H04R1/02 ,  H04R1/34 ,  H04R7/04 ,  H04R9/02 ,  H04R9/04

Abstract: PROBLEM TO BE SOLVED: To provide a linear sound source loudspeaker effectively generating cylindrical waves, and to provide an audio/image display including the same.
SOLUTION: The linear sound source loudspeaker includes: three or more magnets arranged on a line; a diaphragm arranged to extend along the arrangement direction of the magnets and face one-side magnetic poles of the magnets; yokes provided for the respective magnets, abutting on the other side magnetic poles of the magnets, and bent to surround the magnets toward the diaphragm; a frame for holding the magnets and the yokes and supporting the diaphragm in an edge part; and three or more voice coils arranged corresponding to the respective magnets, and fixed to a surface of the diaphragm on the side facing the magnets to interlink with magnetic flux formed by the magnets and the yokes.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供有效产生圆柱波的线性声源扬声器，并提供包括其的音频/图像显示器。 线性声源扬声器包括：排列在一条线上的三个或更多个磁体; 隔膜，其布置成沿着磁体的排列方向延伸并面对磁体的一侧磁极; 设置用于各个磁体的磁轭，抵靠在磁体的另一侧磁极上，并弯曲成围绕磁体朝向隔膜; 用于保持磁体和磁轭并将膜片支撑在边缘部分中的框架; 以及对应于各个磁体布置的三个或更多个音圈，并且在与磁体相对的一侧的表面上固定到膜片的表面，以与由磁体和磁轭形成的磁通相互连接。 版权所有（C）2011，JPO＆INPIT