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公开(公告)号：US09088854B2
公开(公告)日：2015-07-21
申请号：US13428055
申请日：2012-03-23
CPC分类号： H04S7/302 , H04S1/002 , H04S2420/01
摘要： According to an embodiment, a control filter coefficient is calculated in such a manner that a second spatial average of one or more complex sound pressure ratios at one or more target binaural positions when a first loudspeaker and a second loudspeaker emit a second acoustic signal and a first acoustic signal is approximated to a first spatial average of one or more complex sound pressure ratios at the one or more target binaural positions when a target virtual acoustic source emits the first acoustic signal.
摘要翻译： 根据一个实施例，控制滤波器系数被计算为当第一扬声器和第二扬声器发射第二声信号时在一个或多个目标双耳位置处的一个或多个复合声压比的第二空间平均值， 当目标虚拟声源发射第一声信号时，第一声信号近似于一个或多个目标双耳位置处的一个或多个复合声压比的第一空间平均值。
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公开(公告)号：US20120177238A1
公开(公告)日：2012-07-12
申请号：US13349940
申请日：2012-01-13
CPC分类号： H04R1/2819
摘要： According to one embodiment, an acoustic reproduction device includes a loudspeaker unit, a loudspeaker rear chamber unit, and a port unit. The loudspeaker unit generates a sound wave. The loudspeaker rear chamber unit includes a chamber portion in which the loudspeaker unit is arranged, and at least one of a duct portion and a branch portion. The duct portion and the branch portion each have a volume, a cross-sectional area, and a length different from those of the chamber portion. A port unit is connected to the loudspeaker rear chamber unit and has a port to externally output a rear wave. The duct portion guides the rear wave from the loudspeaker unit up to the port unit.
摘要翻译： 根据一个实施例，声学再现装置包括扬声器单元，扬声器后室单元和端口单元。 扬声器单元产生声波。 扬声器后室单元包括其中布置扬声器单元的腔室部分，以及管道部分和分支部分中的至少一个。 管道部分和分支部分各自具有与腔室部分不同的体积，横截面面积和长度。 端口单元连接到扬声器后室单元，并具有用于从外部输出后波的端口。 导管部分将扬声器单元的后波引导到端口单元。
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公开(公告)号：US09497562B2
公开(公告)日：2016-11-15
申请号：US13357634
申请日：2012-01-25
IPC分类号： H04R5/02 , H04R21/00 , G10K11/16 , H04B3/00 , H04R5/00 , H04S7/00 , H04S1/00 , H04R1/26 , H04R3/12
CPC分类号： H04S7/303 , H04R1/26 , H04R3/12 , H04R2499/15 , H04S1/002 , H04S7/301 , H04S7/305 , H04S7/307 , H04S2400/13 , H04S2420/07
摘要： According to one embodiment, a sound field control apparatus is provided with a control filter and a calculation unit. The filter executes an FIR computation for an acoustic signal using coefficients to output a main signal and control signals. The unit calculates the main coefficient and the coefficients based on Spatial transmission characteristics and a sound increase factor n, to set a composite sound pressure from a main speaker and control speakers to a first area to be n times of a coming sound pressure from only the main speaker, and to set a composite sound pressure from the main speaker and control speakers to a second area to be equal to the coming sound pressure from only the main speaker.
摘要翻译： 根据一个实施例，声场控制装置设置有控制滤波器和计算单元。 滤波器使用系数对声信号执行FIR计算，以输出主信号和控制信号。 该单元基于空间传输特性和声音增加因子n来计算主要系数和系数，以将来自主扬声器和控制扬声器的复合声压设置为仅来自第一区域的即将到来声压的n倍的第一区域 主扬声器，并且将来自主扬声器和控制扬声器的复合声压设置为仅与主扬声器的即将到来的声压相等的第二区域。
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公开(公告)号：US20120328108A1
公开(公告)日：2012-12-27
申请号：US13428055
申请日：2012-03-23
IPC分类号： H04R5/02
CPC分类号： H04S7/302 , H04S1/002 , H04S2420/01
摘要： According to an embodiment, a control filter coefficient is calculated in such a manner that a second spatial average of one or more complex sound pressure ratios at one or more target binaural positions when a first loudspeaker and a second loudspeaker emit a second acoustic signal and a first acoustic signal is approximated to a first spatial average of one or more complex sound pressure ratios at the one or more target binaural positions when a target virtual acoustic source emits the first acoustic signal.
摘要翻译： 根据一个实施例，控制滤波器系数被计算为当第一扬声器和第二扬声器发射第二声信号时在一个或多个目标双耳位置处的一个或多个复合声压比的第二空间平均值， 当目标虚拟声源发射第一声信号时，第一声信号近似于一个或多个目标双耳位置处的一个或多个复合声压比的第一空间平均值。
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公开(公告)号：US20090085283A1
公开(公告)日：2009-04-02
申请号：US12233740
申请日：2008-09-19
IPC分类号： B65H5/06
CPC分类号： B65H5/062 , B65H2402/40 , B65H2601/521
摘要： In a sheet conveying mechanism, a first bulging space and a second bulging space are provided on a downstream side and an upstream side, respectively, of a conveying path. The second bulging space has a length L1 along the conveying path. The conveying path between the first and second bunging spaces is defined to have a length L2. The lengths L1 and L2 are set to satisfy a predetermined relationship with a frequency of noise propagating through the conveying path. The sheet conveying mechanism can inexpensively reduce noise generated inside the conveying path during sheet conveyance without hindering the conveyance of the sheet.
摘要翻译： 在片材输送机构中，分别在输送路径的下游侧和上游侧设置有第一膨胀空间和第二膨胀空间。 第二凸起空间沿输送路径具有长度L1。 第一和第二捣实空间之间的输送路径被定义为具有长度L2。 长度L1和L2被设定为与通过输送路径传播的噪声的频率成一定的关系。 片材输送机构能够在片材输送期间廉价地减少输送路径内产生的噪音，而不会妨碍纸张的输送。
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公开(公告)号：US20070098183A1
公开(公告)日：2007-05-03
申请号：US11586236
申请日：2006-10-25
申请人： Akihiko Enamito , Takahiro Hiruma
发明人： Akihiko Enamito , Takahiro Hiruma
CPC分类号： H04S3/002
摘要： A reproduction apparatus includes an acoustic signal generator which generates an acoustic signal, first sound pressure detection points located at N points in an audible area to detect sound pressure signals, N+1 control sound wave generators each of which emits a sound wave based on the acoustic signal to generate a control sound, second sound pressure detection points located at M points in a non-audible area to detect sound pressure signals, M sound wave generators each of which emits a sound wave based on the acoustic signal to generate a main sound, and a controller to control an amplitude and a phase of each of the (N+1) control sound wave generators.
摘要翻译： 再现装置包括产生声信号的声信号发生器，位于可听区域N点的第一声压检测点，以检测声压信号，N + 1个控制声波发生器，每个发声基于 声信号以产生控制声音，第二声压检测点位于非听觉区域中的M个点处以检测声压信号，M个声波发生器，每个声波发生器基于声信号发出声波以产生主声音 ，以及控制器，用于控制（N + 1）个控制声波发生器中的每一个的振幅和相位。
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7.发明申请Apparatus, method, and computer program product for reproducing sound by dividing sound field into non-reduction region and reduction region 审中-公开用于通过将声场分割为非还原区域和缩小区域来再现声音的装置，方法和计算机程序产品公开(公告)号：US20060215853A1
公开(公告)日：2006-09-28
申请号：US11363429
申请日：2006-02-27
申请人： Takahiro Hiruma , Akihiko Enamito , Takahiro Suzuki , Rika Hosaka , Takumi Hara
发明人： Takahiro Hiruma , Akihiko Enamito , Takahiro Suzuki , Rika Hosaka , Takumi Hara
CPC分类号： H04S7/30
摘要： A sound reproducing apparatus includes an amplitude and phase adjusting unit that adjusts amplitude and phase of a sound signal which is supplied as an input, and outputs an adjusted sound signal; a first sound source that outputs a first sound based on the sound signal; and a second sound source that outputs a second sound based on the adjusted sound signal, and that has a different distance decay rate from the first sound source, the distance decay rate representing a ratio of attenuation of sound pressure of sound output from a sound source to a distance from the sound source; wherein the amplitude and phase adjusting unit adjusts the amplitude and the phase of the sound signal, so as to restrain a synthesis sound pressure that is a combination of a sound pressure of the first sound which is calculated based on the distance decay rate of the first sound source, and a sound pressure of the second sound which is calculated based on the distance decay rate of the second sound source, at a predetermined distance from the first sound source.
摘要翻译： 一种声音再现装置，包括调整作为输入的声音信号的振幅和相位的振幅相位调整部，输出调整后的声音信号; 基于声音信号输出第一声音的第一声源; 以及第二声源，其基于所述调整后的声音信号输出第二声音，并且与所述第一声源具有不同的距离衰减速率，所述距离衰减率表示从声源输出的声音的声压的衰减比 距离声源一段距离; 其中，所述振幅和相位调整单元调整所述声音信号的幅度和相位，以便抑制作为所述第一声音的声压的组合的合成声压，所述合成声压是基于所述第一声音的距离衰减率 声源，以及基于第二声源的距离衰减率计算的第二声音的声压，距离第一声源预定距离。
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公开(公告)号：US20090129604A1
公开(公告)日：2009-05-21
申请号：US12262077
申请日：2008-10-30
申请人： Akihiko Enamito , Takahiro Hiruma
发明人： Akihiko Enamito , Takahiro Hiruma
CPC分类号： H04S7/302 , H04R1/028 , H04R1/406 , H04R2201/023
摘要： Characteristics of spatial transmission from a speaker to a microphone contained in a remote controller and set in a listening area and in a non-listening area are measured. A plurality of different types of sound field control effects is calculated on the basis of the spatial transmission characteristics to predict the plurality of types of sound field control effects. The plurality of types of sound field control effects is displayed and presented to a user. The speaker is driven by using a control sound source corresponding to one sound field control effect selected from the plurality of types of sound field control effects by the user operating the remote controller to perform effective sound field control in the listening area and in the non-listening area.
摘要翻译： 测量从遥控器中包含的扬声器到麦克风的空间传输特性，并设置在收听区域和非聆听区域中。 基于空间传输特性来计算多种不同类型的声场控制效果，以预测多种类型的声场控制效果。 多种类型的声场控制效果被显示并呈现给用户。 扬声器通过使用与由遥控器操作的用户从多种类型的声场控制效果中选择的一种声场控制效果对应的控制声源来驱动，以在收听区域和非声音区域中执行有效的声场控制。 听区
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公开(公告)号：US07828291B2
公开(公告)日：2010-11-09
申请号：US12233740
申请日：2008-09-19
IPC分类号： B65H5/00
CPC分类号： B65H5/062 , B65H2402/40 , B65H2601/521
摘要： In a sheet conveying mechanism, a first bulging space and a second bulging space are provided on a downstream side and an upstream side, respectively, of a conveying path. The second bulging space has a length L1 along the conveying path. The conveying path between the first and second bunging spaces is defined to have a length L2. The lengths L1 and L2 are set to satisfy a predetermined relationship with a frequency of noise propagating through the conveying path. The sheet conveying mechanism can inexpensively reduce noise generated inside the conveying path during sheet conveyance without hindering the conveyance of the sheet.
摘要翻译： 在片材输送机构中，分别在输送路径的下游侧和上游侧设置有第一膨胀空间和第二膨胀空间。 第二凸起空间沿输送路径具有长度L1。 第一和第二捣实空间之间的输送路径被定义为具有长度L2。 长度L1和L2被设定为与通过输送路径传播的噪声的频率成一定的关系。 片材输送机构能够在片材输送期间廉价地减少输送路径内产生的噪音，而不会妨碍纸张的输送。
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公开(公告)号：US07352870B2
公开(公告)日：2008-04-01
申请号：US10400564
申请日：2003-03-28
CPC分类号： G10K11/178 , G10K2210/118 , G10K2210/124 , G10K2210/128 , G10K2210/3214 , G10K2210/3224
摘要： An active sound muffler for reducing a sound to be reduced as emitted from a sound source located at one of the opposite sides of a sound insulating wall and diffracted and transmitted to the other side, the muffler comprises a control loudspeaker arranged at the front end or the other side of the sound insulating wall and adapted to output a control sound with a predetermined amplitude and a predetermined phase, a control microphone arranged above the sound insulating wall and adapted to gauge the sound pressure or the acoustic intensity of the sound to be reduced and that of the control sound and a control circuit for controlling the output of the control loudspeaker so as to minimize the sound pressure or the acoustic intensity, whichever appropriate, based on the outcome of gauging of the control microphone, and the control loudspeaker showing a line sound source characteristic.
摘要翻译： 一种主动声音消音器，用于减少从位于隔音壁的相对侧中的一个声音处发射并被衍射并传播到另一侧的声源被减小的声音消音器，消声器包括设置在前端的控制扬声器或 隔音墙的另一侧，适于输出具有预定振幅和预定相位的控制声音，控制麦克风布置在隔音墙上方，适用于测量声音的声压或声强度。 以及用于控制控制扬声器的输出的控制电路的控制电路，以便基于控制麦克风的测量结果，以最小化声压或声强度（以适当的方式），并且控制扬声器显示为 线声源特征。
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