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公开(公告)号：US20130182883A1
公开(公告)日：2013-07-18
申请号：US13825246
申请日：2011-08-23
申请人： Katsu Takeda , Fumiyasu Konno , Rihito Shoji , Susumu Fukushima
发明人： Katsu Takeda , Fumiyasu Konno , Rihito Shoji , Susumu Fukushima
IPC分类号： H04R1/34
CPC分类号： H04R1/345 , H04R1/026 , H04R1/06 , H04R1/323 , H04R5/02 , H04R2201/025 , H04R2217/03 , H04R2499/13
摘要： A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex face, and the second surface has a concave face which can come into contact with the convex face. A curvature of the convex face is set larger than that of the concave face. A direction of emitting a sound wave of the superdirective speaker can be adjusted by making the convex face move along the concave face.
摘要翻译： 声音再现装置包括具有第一表面的超直向扬声器和具有与第一表面相对的第二表面的附接部分。 第一表面具有凸面，第二面具有与凸面接触的凹面。 凸面的曲率设定为大于凹面的曲率。 可以通过使凸面沿着凹面移动来调节发出超声扬声器的声波的方向。
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公开(公告)号：US08861774B2
公开(公告)日：2014-10-14
申请号：US13825246
申请日：2011-08-23
申请人： Katsu Takeda , Fumiyasu Konno , Rihito Shoji , Susumu Fukushima
发明人： Katsu Takeda , Fumiyasu Konno , Rihito Shoji , Susumu Fukushima
CPC分类号： H04R1/345 , H04R1/026 , H04R1/06 , H04R1/323 , H04R5/02 , H04R2201/025 , H04R2217/03 , H04R2499/13
摘要： A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex face, and the second surface has a concave face which can come into contact with the convex face. A curvature of the convex face is set larger than that of the concave face. A direction of emitting a sound wave of the superdirective speaker can be adjusted by making the convex face move along the concave face.
摘要翻译： 声音再现装置包括具有第一表面的超直向扬声器和具有与第一表面相对的第二表面的附接部分。 第一表面具有凸面，第二面具有与凸面接触的凹面。 凸面的曲率设定为大于凹面的曲率。 可以通过使凸面沿着凹面移动来调节发出超声扬声器的声波的方向。
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公开(公告)号：US08750543B2
公开(公告)日：2014-06-10
申请号：US13820441
申请日：2011-07-12
申请人： Katsu Takeda , Fumiyasu Konno , Susumu Fukushima , Rihito Shoji
发明人： Katsu Takeda , Fumiyasu Konno , Susumu Fukushima , Rihito Shoji
IPC分类号： H04R5/02
CPC分类号： H04R5/02 , H04R1/26 , H04R1/323 , H04R2217/03 , H04R2499/15 , H04S2400/01
摘要： Provided is a sound reproduction device including a loudspeaker and a superdirective speaker. The loudspeaker is configured so that a sound pressure of audible sound produced therefrom decreases as the sound travels farther away from the loudspeaker. The superdirective speaker is configured so that a sound pressure of audible sound produced therefrom has a peak at a predetermined distance from the superdirective speaker, and is configured to use an ultrasonic wave as a carrier wave. The loudspeaker and the superdirective speaker are positioned such that a loudspeaker sound field of the audible sound produced from the loudspeaker and a superdirective speaker sound field of the audible sound produced from the superdirective speaker overlap with each other at a position of a listener.
摘要翻译： 提供了包括扬声器和超向量扬声器的声音再现装置。 扬声器被配置为使得由其产生的可听见的声音的声压随着声音越来越远离扬声器而减小。 超声波扬声器被配置为使得从其产生的可听见的声音的声压在距离超声向扬声器预定距离处具有峰值，并且被配置为使用超声波作为载波。 扬声器和超向扬声器被定位成使得从扬声器产生的可听见的声音的扬声器声场和从超声向扬声器产生的可听见的声音的超声向扬声器声场在收听者的位置彼此重叠。
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公开(公告)号：US20130163795A1
公开(公告)日：2013-06-27
申请号：US13820441
申请日：2011-07-12
申请人： Katsu Takeda , Fumiyasu Konno , Susumu Fukushima , Rihito Shoji
发明人： Katsu Takeda , Fumiyasu Konno , Susumu Fukushima , Rihito Shoji
IPC分类号： H04R5/02
CPC分类号： H04R5/02 , H04R1/26 , H04R1/323 , H04R2217/03 , H04R2499/15 , H04S2400/01
摘要： Provided is a sound reproduction device including a loudspeaker and a superdirective speaker. The loudspeaker is configured so that a sound pressure of audible sound produced therefrom decreases as the sound travels farther away from the loudspeaker. The superdirective speaker is configured so that a sound pressure of audible sound produced therefrom has a peak at a predetermined distance from the superdirective speaker, and is configured to use an ultrasonic wave as a carrier wave. The loudspeaker and the superdirective speaker are positioned such that a loudspeaker sound field of the audible sound produced from the loudspeaker and a superdirective speaker sound field of the audible sound produced from the superdirective speaker overlap with each other at a position of a listener.
摘要翻译： 提供了包括扬声器和超向量扬声器的声音再现装置。 扬声器被配置为使得由其产生的可听见的声音的声压随着声音越来越远离扬声器而减小。 超声波扬声器被配置为使得从其产生的可听见的声音的声压在距离超声向扬声器预定距离处具有峰值，并且被配置为使用超声波作为载波。 扬声器和超向扬声器被定位成使得从扬声器产生的可听见的声音的扬声器声场和从超声向扬声器产生的可听见的声音的超声向扬声器声场在收听者的位置彼此重叠。
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公开(公告)号：US09253578B2
公开(公告)日：2016-02-02
申请号：US14237481
申请日：2012-08-28
申请人： Fumiyasu Konno , Katsu Takeda
发明人： Fumiyasu Konno , Katsu Takeda
CPC分类号： H04R17/00 , H04R1/323 , H04R1/403 , H04R7/20 , H04R2307/027 , H04R2307/204 , H04R2307/207
摘要： In a directional loudspeaker, an audible sound signal that is modulated with a carrier wave in the ultrasonic wave band is input to a piezoelectric element, and thereby a diaphragm having the piezoelectric element is vibrated and a sound wave is generated. In such a directional loudspeaker, the diaphragm is fixed to a fixed part via a plurality of beams disposed along the outer circumference of the diaphragm.
摘要翻译： 在定向扬声器中，在超声波波段中用载波调制的声音信号被输入到压电元件，由此使具有压电元件的隔膜振动并产生声波。 在这种定向扬声器中，隔膜通过沿隔膜的外圆周设置的多个光束固定到固定部分。
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公开(公告)号：US08666106B2
公开(公告)日：2014-03-04
申请号：US13616224
申请日：2012-09-14
申请人： Fumiyasu Konno , Katsu Takeda
发明人： Fumiyasu Konno , Katsu Takeda
IPC分类号： H04R1/02
CPC分类号： H04R1/323 , H04R5/02 , H04R27/00 , H04R2201/025 , H04R2217/03 , H04R2499/15 , H04S7/303
摘要： A sound reproducing device includes parametric speakers disposed to a display, a loudspeaker, drivers, a human-body sensor, and a controller. The loudspeaker has a wider directivity than the parametric speakers. The drivers change directions of the parametric speakers, respectively. The parametric speakers and the drivers constitute at least two parametric speaker units each composed of respective one of the parametric speakers and respective one of the drivers. The controller reproduces sound information based the number of persons in front of the display detected from an output from the human-body senor. The sound reproducing device reduces the possibility for a number of persons to hear the sound noisily, and allows drawing more attention to the content, e.g. an advertisement.
摘要翻译： 声音再现装置包括设置在显示器上的参数扬声器，扬声器，驱动器，人体传感器和控制器。 扬声器具有比参数扬声器更宽的方向性。 驱动程序分别改变了参数扬声器的方向。 参数扬声器和驱动器构成至少两个参数扬声器单元，每个扬声器单元由相应的一个参数扬声器和相应的驱动器组成。 控制器根据来自人体传感器的输出检测到的显示器的人数再现声音信息。 声音再现装置降低了许多人听到声音的可能性，并且允许更多地关注内容，例如， 一个广告。
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公开(公告)号：US20130077803A1
公开(公告)日：2013-03-28
申请号：US13616224
申请日：2012-09-14
申请人： Fumiyasu KONNO , Katsu Takeda
发明人： Fumiyasu KONNO , Katsu Takeda
CPC分类号： H04R1/323 , H04R5/02 , H04R27/00 , H04R2201/025 , H04R2217/03 , H04R2499/15 , H04S7/303
摘要： A sound reproducing device includes parametric speakers disposed to a display, a loudspeaker, drivers, a human-body sensor, and a controller. The loudspeaker has a wider directivity than the parametric speakers. The drivers change directions of the parametric speakers, respectively. The parametric speakers and the drivers constitute at least two parametric speaker units each composed of respective one of the parametric speakers and respective one of the drivers. The controller reproduces sound information based the number of persons in front of the display detected from an output from the human-body senor. The sound reproducing device reduces the possibility for a number of persons to hear the sound noisily, and allows drawing more attention to the content, e.g. an advertisement.
摘要翻译： 声音再现装置包括设置在显示器上的参数扬声器，扬声器，驱动器，人体传感器和控制器。 扬声器具有比参数扬声器更宽的方向性。 驱动程序分别改变了参数扬声器的方向。 参数扬声器和驱动器构成至少两个参数扬声器单元，每个扬声器单元由相应的参数扬声器和相应的一个驱动器组成。 控制器根据来自人体传感器的输出检测到的显示器的人数再现声音信息。 声音再现装置降低了许多人听到声音的可能性，并且允许更多地关注内容，例如， 一个广告。
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公开(公告)号：US20110170712A1
公开(公告)日：2011-07-14
申请号：US13061762
申请日：2009-09-17
申请人： Katsu Takeda , Masaki Tada , Masashi Minakuchi , Fumiyasu Konno
发明人： Katsu Takeda , Masaki Tada , Masashi Minakuchi , Fumiyasu Konno
IPC分类号： H03G5/00
CPC分类号： H04R17/10 , H04R2217/03
摘要： In a sound reproducing apparatus, part of a frequency band where mode-coupled vibration can be excited is regarded as a carrier frequency. A frequency of mode coupling, with a low rate of change in vibration displacement with respect to the frequency, is regarded as a carrier signal so that a signal in an audible band which is outputted from an audible band signal source can be demodulated and reproduced with stable sound pressure in a broad frequency band.
摘要翻译： 在声音再现装置中，可以激励模式耦合振动的频带的一部分被认为是载波频率。 将振动位移相对于频率的低变化率的模式耦合的频率视为载波信号，使得从可听频带信号源输出的可听频带中的信号可以被解调和再现， 在宽频带内稳定的声压。
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公开(公告)号：US20140153750A1
公开(公告)日：2014-06-05
申请号：US14237481
申请日：2012-08-28
申请人： Fumiyasu Konno , Katsu Takeda
发明人： Fumiyasu Konno , Katsu Takeda
IPC分类号： H04R17/00
CPC分类号： H04R17/00 , H04R1/323 , H04R1/403 , H04R7/20 , H04R2307/027 , H04R2307/204 , H04R2307/207
摘要： In a directional loudspeaker, an audible sound signal that is modulated with a carrier wave in the ultrasonic wave band is input to a piezoelectric element, and thereby a diaphragm having the piezoelectric element is vibrated and a sound wave is generated. In such a directional loudspeaker, the diaphragm is fixed to a fixed part via a plurality of beams disposed along the outer circumference of the diaphragm.
摘要翻译： 在定向扬声器中，在超声波波段中用载波调制的声音信号被输入到压电元件，由此使具有压电元件的隔膜振动并产生声波。 在这种定向扬声器中，隔膜通过沿隔膜的外圆周设置的多个光束固定到固定部分。
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公开(公告)号：US09565496B2
公开(公告)日：2017-02-07
申请号：US14233974
申请日：2012-08-28
申请人： Fumiyasu Konno , Katsu Takeda
发明人： Fumiyasu Konno , Katsu Takeda
CPC分类号： H04R3/04 , H04R5/04 , H04R17/10 , H04R2217/03
摘要： A sound reproduction device includes a modulator having an output terminal for outputting a modulated carrier wave signal obtained by modulating a carrier wave signal in a ultrasonic band with an audible sound signal, a super-directivity loudspeaker connected to the output terminal, a capacitor connected between a ultrasonic wave source and a ground, first and second current detectors for detecting currents flowing through the super-directivity loudspeaker and the capacitor, a high-pass filter for outputting a filtered signal obtained by eliminating a low-frequency band component of the current detected by the first current detector, and a differential amplifier unit for outputting a signal corresponding to a difference between the filtered signal and the current detected by the second current detector. The ultrasonic wave source is configured to output the carrier wave signal such that the signal output from the differential amplifier unit is constant.
摘要翻译： 声音再现装置包括具有输出端子的调制器，该输出端子用于输出通过用可听见的声音信号调制超声频带中的载波信号而得到的调制载波信号，连接到输出端子的超方向性扬声器， 超声波源和接地的第一和第二电流检测器，用于检测流过超方向性扬声器和电容器的电流;高通滤波器，用于输出通过消除检测到的电流的低频带分量而获得的滤波信号 以及差分放大器单元，用于输出对应于滤波信号和由第二电流检测器检测的电流之间的差值的信号。 超声波波长源被配置为输出载波信号，使得从差分放大器单元输出的信号是恒定的。
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