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公开(公告)号：US20120222541A1
公开(公告)日：2012-09-06
申请号：US13410622
申请日：2012-03-02
申请人： Fusako ISHIMURA , Takashi KATO , Rento TANASE , Keiichi FUKATSU
发明人： Fusako ISHIMURA , Takashi KATO , Rento TANASE , Keiichi FUKATSU
摘要： An electronic keyboard musical instrument, including: a keyboard; a musical-sound signal generating circuit; at least one speaker for emitting sound in accordance with a generated signal; a speaker accommodating body accommodating the speaker in its inner space; and at least one resonator disposed in the accommodating body, wherein the accommodating body includes a sound emission path by which the sound emitted by the speaker is introduced to an exterior of the accommodating body via the inner space for sound propagation to the exterior, a control point of the resonator is located at a position corresponding to an antinode of a sound pressure in a natural vibration mode at a specific frequency generated in the inner space by driving of the speaker, and the resonator resonates at the specific frequency for adjusting the sound pressure, whereby the sound is emitted from the sound emission path to the exterior.
摘要翻译： 电子键盘乐器，包括：键盘; 音乐声音信号发生电路; 至少一个扬声器，用于根据产生的信号发出声音; 容纳扬声器在其内部空间中的扬声器容纳主体; 以及设置在所述容纳主体中的至少一个谐振器，其中所述容纳主体包括声音发射路径，通过所述声音发射路径，由所述扬声器发出的声音经由用于声音传播到外部的内部空间被引入所述容纳主体的外部， 谐振器的点位于通过扬声器的驱动在内部空间中产生的特定频率处于自然振动模式中的声压的波腹的位置，并且谐振器以特定频率共振以调节声压 从而声音从声音发射路径发射到外部。
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公开(公告)号：US20110127107A1
公开(公告)日：2011-06-02
申请号：US12955318
申请日：2010-11-29
申请人： RENTO TANASE , Keiichi Fukatsu
发明人： RENTO TANASE , Keiichi Fukatsu
IPC分类号： G10K11/172
CPC分类号： F01N1/04 , F01N1/02 , F01N1/023 , F01N2310/10 , F01N2490/15 , F01N2490/155 , G10K11/04
摘要： An acoustic resonator adaptable to a sound chamber is designed to decrease a sound pressure while increasing a particle velocity of medium particles in a low frequency range without increasing the overall size thereof. The acoustic resonator is constituted of a pipe member having one opening end and a resistance member embracing a high resistance region and a low resistance region. The resistance member is inserted into the pipe member such that one end thereof matches the opening end of the pipe member whilst the other end thereof is disposed at a predetermined position inside a hollow cavity of the pipe member. The high resistance region embraces an antinode region of the particle velocity distribution with respect to a standing wave occurred in the hollow cavity at a resonance frequency, thus causing an acoustic phenomenon decreasing the resonance frequency compared to a single unit of the pipe member.
摘要翻译： 适于声音室的声共振器被设计成降低声压同时在不增加其总体尺寸的同时增加中等粒子在低频范围内的粒子速度。 声谐振器由具有一个开口端的管构件和包含高电阻区域和低电阻区域的电阻构件构成。 阻力构件插入到管构件中，使得其一端与管构件的开口端相匹配，同时其另一端设置在管构件的中空腔内的预定位置处。 高电阻区域以谐振频率包围相对于中空腔中发生的驻波的粒子速度分布的波腹区域，从而与管构件的单个单元相比，引起声学现象降低谐振频率。
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公开(公告)号：US09099075B2
公开(公告)日：2015-08-04
申请号：US13275247
申请日：2011-10-17
IPC分类号： G10K11/16 , G10K11/178 , H04S7/00 , H04R3/04
CPC分类号： G10K11/178 , H04R3/04 , H04S7/305
摘要： A standing wave attenuation device is installed in a cabin of a vehicle so as to reduce a standing wave caused by external noise such as road noise. The standing wave attenuation device provides a closed loop including a feedback comb filter with a feedback loop, a microphone, a speaker, and a delay element. The delay element adjusts the phase of the output signal of the feedback comb filter such that the time needed for one-time circulation of a signal through the feedback loop matches a half period of the standing wave. An original sound including the standing wave is picked up by the microphone and subjected to processing so that the speaker produces a sound wave with the inverse phase against the phase of a sound wave constituting the standing wave, so that the standing wave is canceled out by the sound wave emitted from the speaker.
摘要翻译： 将驻波衰减装置安装在车辆的车厢内，以减少由道路噪声等外部噪声引起的驻波。 驻波衰减装置提供闭环，包括反馈梳状滤波器，反馈回路，麦克风，扬声器和延迟元件。 延迟元件调整反馈梳状滤波器的输出信号的相位，使得通过反馈环路的信号一次循环所需的时间与驻波的一半周期匹配。 包括驻波的原始声音由麦克风拾取并进行处理，使得扬声器产生与组成驻波的声波的相位相反的相位的声波，从而驻波被 从扬声器发出的声波。
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公开(公告)号：US20120097477A1
公开(公告)日：2012-04-26
申请号：US13275247
申请日：2011-10-17
IPC分类号： G10K11/175
CPC分类号： G10K11/178 , H04R3/04 , H04S7/305
摘要： A standing wave attenuation device is installed in a cabin of a vehicle so as to reduce a standing wave caused by external noise such as road noise. The standing wave attenuation device provides a closed loop including a feedback comb filter with a feedback loop, a microphone, a speaker, and a delay element. The delay element adjusts the phase of the output signal of the feedback comb filter such that the time needed for one-time circulation of a signal through the feedback loop matches a half period of the standing wave. An original sound including the standing wave is picked up by the microphone and subjected to processing so that the speaker produces a sound wave with the inverse phase against the phase of a sound wave constituting the standing wave, so that the standing wave is canceled out by the sound wave emitted from the speaker.
摘要翻译： 将驻波衰减装置安装在车辆的车厢内，以减少由道路噪声等外部噪声引起的驻波。 驻波衰减装置提供闭环，包括反馈梳状滤波器，反馈回路，麦克风，扬声器和延迟元件。 延迟元件调整反馈梳状滤波器的输出信号的相位，使得通过反馈环路的信号一次循环所需的时间与驻波的一半周期匹配。 包括驻波的原始声音由麦克风拾取并进行处理，使得扬声器产生与组成驻波的声波的相位相反的相位的声波，从而驻波被 从扬声器发出的声波。
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公开(公告)号：US20110056763A1
公开(公告)日：2011-03-10
申请号：US12876067
申请日：2010-09-03
申请人： Rento Tanase , Hiroshi Nakashima , Yasutaka Nakamura , Keiichi Fukatsu , Atsushi Yoshida , Shinichi Kato
发明人： Rento Tanase , Hiroshi Nakashima , Yasutaka Nakamura , Keiichi Fukatsu , Atsushi Yoshida , Shinichi Kato
IPC分类号： E04B1/82
CPC分类号： B60R13/0815
摘要： An acoustic resonance device is installed in a compartment of a vehicle so as to reduce a low-frequency sound pressure (or noise) dependent upon a natural vibration. Specifically, an acoustic resonance device is a panel/diaphragm resonator, a resonance pipe, or a Helmholtz resonator, the inner space of which communicates with the compartment via an opening. The acoustic resonance device is positioned in proximity to an antinode of sound pressure owing to a natural vibration occurring in a driver/passenger space inside the compartment. Alternatively, the acoustic resonance device increases a particle velocity at a specific natural frequency or decreases sound pressure at an excitation frequency which occurs due to an external condition of the vehicle. The acoustic resonance device can be installed in a roof, a seat, a pillar supporting the roof, or a door of a vehicle.
摘要翻译： 声学共振装置安装在车辆的隔室中，以便降低取决于自然振动的低频声压（或噪声）。 具体地，声共振装置是面板/隔膜谐振器，共振管或亥姆霍兹共振器，其内部空间经由开口与隔室连通。 由于在隔室内的驾驶员/乘客空间中发生的自然振动，声共振装置位于靠近声压的波腹处。 或者，声共振装置以特定的固有频率增加粒子速度，或者由于车辆的外部状况而产生的激励频率处的声压降低。 声共振装置可以安装在屋顶，座椅，支撑屋顶的支柱或车辆的门上。
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公开(公告)号：US08901404B2
公开(公告)日：2014-12-02
申请号：US13410622
申请日：2012-03-02
申请人： Fusako Ishimura , Takashi Kato , Rento Tanase , Keiichi Fukatsu
发明人： Fusako Ishimura , Takashi Kato , Rento Tanase , Keiichi Fukatsu
摘要： An electronic keyboard musical instrument, including: a keyboard; a musical-sound signal generating circuit; at least one speaker for emitting sound in accordance with a generated signal; a speaker accommodating body accommodating the speaker in its inner space; and at least one resonator disposed in the accommodating body, wherein the accommodating body includes a sound emission path by which the sound emitted by the speaker is introduced to an exterior of the accommodating body via the inner space for sound propagation to the exterior, a control point of the resonator is located at a position corresponding to an antinode of a sound pressure in a natural vibration mode at a specific frequency generated in the inner space by driving of the speaker, and the resonator resonates at the specific frequency for adjusting the sound pressure, whereby the sound is emitted from the sound emission path to the exterior.
摘要翻译： 电子键盘乐器，包括：键盘; 音乐声音信号发生电路; 至少一个扬声器，用于根据产生的信号发出声音; 容纳扬声器在其内部空间中的扬声器容纳主体; 以及设置在所述容纳主体中的至少一个谐振器，其中所述容纳主体包括声音发射路径，通过所述声音发射路径，由所述扬声器发出的声音经由用于声音传播到外部的内部空间被引入所述容纳主体的外部， 谐振器的点位于通过扬声器的驱动在内部空间中产生的特定频率处于自然振动模式中的声压的波腹的位置，并且谐振器以特定频率共振以调节声压 从而声音从声音发射路径发射到外部。
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公开(公告)号：US08439158B2
公开(公告)日：2013-05-14
申请号：US12955318
申请日：2010-11-29
申请人： Rento Tanase , Keiichi Fukatsu
发明人： Rento Tanase , Keiichi Fukatsu
IPC分类号： F01N1/04
CPC分类号： F01N1/04 , F01N1/02 , F01N1/023 , F01N2310/10 , F01N2490/15 , F01N2490/155 , G10K11/04
摘要： An acoustic resonator adaptable to a sound chamber is designed to decrease a sound pressure while increasing a particle velocity of medium particles in a low frequency range without increasing the overall size thereof. The acoustic resonator is constituted of a pipe member having one opening end and a resistance member embracing a high resistance region and a low resistance region. The resistance member is inserted into the pipe member such that one end thereof matches the opening end of the pipe member while the other end thereof is disposed at a predetermined position inside a hollow cavity of the pipe member. The high resistance region embraces an antinode region of the particle velocity distribution with respect to a standing wave occurred in the hollow cavity at a resonance frequency, thus causing an acoustic phenomenon decreasing the resonance frequency compared to a single unit of the pipe member.
摘要翻译： 适于声音室的声共振器被设计成降低声压同时在不增加其总体尺寸的同时增加中等粒子在低频范围内的粒子速度。 声谐振器由具有一个开口端的管构件和包含高电阻区域和低电阻区域的电阻构件构成。 阻力构件插入到管构件中，使得其一端与管构件的开口端相匹配，同时其另一端设置在管构件的中空腔内的预定位置处。 高电阻区域以谐振频率包围相对于中空腔中发生的驻波的粒子速度分布的波腹区域，从而与管构件的单个单元相比，引起声学现象降低谐振频率。
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