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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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公开(公告)号：US20140161278A1
公开(公告)日：2014-06-12
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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公开(公告)号：US20110188672A1
公开(公告)日：2011-08-04
申请号：US13058060
申请日：2009-10-02
申请人： Masaki Tada , Katsu Takeda , Masashi Minakuchi , Fumiyasu Konno
发明人： Masaki Tada , Katsu Takeda , Masashi Minakuchi , Fumiyasu Konno
IPC分类号： H03G5/00
CPC分类号： H04R17/00
摘要： A sound reproduction apparatus reproduces a sound wave at a listening position. The sound reproduction apparatus includes a compensation processing unit for compensating an audible band signal having an audible band frequency, a carrier signal oscillator for generating a carrier signal, a modulator for outputting a modulated signal obtained by modulating the carrier signal based on the audible band signal compensated by the compensation processing unit, and a sound emission unit for outputting a sound wave depending on the modulated signal output from the modulator. The compensation processing unit compensates the audible band signal based on a distance from the sound emission unit to the listening position. This sound reproduction apparatus can reproduce the original audible band signal with a high fidelity regardless of the listening position.
摘要翻译： 声音再现装置在收听位置再现声波。 声音再现装置包括用于补偿具有可听频带频率的可听频带信号的补偿处理单元，用于产生载波信号的载波信号振荡器，用于输出基于可听频带信号调制载波信号而获得的调制信号的调制器 由补偿处理单元补偿，以及声音发射单元，用于根据从调制器输出的调制信号输出声波。 补偿处理单元基于从声音发射单元到收听位置的距离补偿可听频带信号。 这种声音再现装置可以以高保真度再现原始可听频带信号，而不管收听位置如何。
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14.发明授权Sound reproducing apparatus for sound reproduction using an ultrasonic transducer via mode-coupled vibration 有权用于通过模式耦合振动使用超声波换能器进行声音再现的声音再现装置公开(公告)号：US09100755B2
公开(公告)日：2015-08-04
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
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：US07136495B1
公开(公告)日：2006-11-14
申请号：US10089884
申请日：2000-08-07
申请人： Hidekazu Tanaka , Fumiyasu Konno
发明人： Hidekazu Tanaka , Fumiyasu Konno
摘要： A loudspeaker device comprising a power amplifier (13) to which an input signal is delivered via a subtracter (6), a speaker unit (1) for reproducing output signals delivered from the power amplifier (13), an acoustic pipe (2) coupled in front of the speaker unit for guiding the sound waves, a microphone (4) for detecting an acoustic outputs radiated from the speaker unit, a microphone amplifier (5) for amplifying an acoustic output signals detected by the microphone, and a negative feedback circuit. Output signals of the microphone amplifier are delivered to the subtracter, at the same time the same output signal is connected to a high-pass filter (7) to be delivered to the subtracter. Thus the negative feedback circuit is formed to suppress peaks and dips for providing a flattened sound pressure frequency characteristic.
摘要翻译： 一种扬声器装置，包括功率放大器（13），输入信号通过减法器（6）传送到其上;扬声器单元（1），用于再现从功率放大器（13）传送的输出信号;声管（2） 在用于引导声波的扬声器单元的前面，用于检测从扬声器单元辐射的声输出的麦克风（4），用于放大由麦克风检测的声输出信号的麦克风放大器（5）和负反馈电路 。 麦克风放大器的输出信号被传送到减法器，同时相同的输出信号连接到高通滤波器（7）以被传送到减法器。 因此，形成负反馈电路以抑制用于提供扁平的声压频率特性的峰值和下降。
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公开(公告)号：US20050184891A1
公开(公告)日：2005-08-25
申请号：US11058177
申请日：2005-02-16
申请人： Toshiya Nakagaki , Fumiyasu Konno
发明人： Toshiya Nakagaki , Fumiyasu Konno
摘要： A digital signal processing amplifier to produce substantially no digital clipping is disclosed, the amplifier including an A/D converter provided with an overflow detecting function and a controller for communicating with external equipment and adapted such that an overflow of an input signal is detected and thereby an output level of a head unit serving as a source of the analog input signal is controlled.
摘要翻译： 公开了一种基本上不产生数字限幅的数字信号处理放大器，放大器包括具有溢出检测功能的A / D转换器和用于与外部设备通信的控制器，并且适于使得检测到输入信号的溢出 控制用作模拟输入信号的源的头单元的输出电平。
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公开(公告)号：US5508663A
公开(公告)日：1996-04-16
申请号：US309185
申请日：1994-09-20
申请人： Fumiyasu Konno
发明人： Fumiyasu Konno
CPC分类号： H03F3/217 , H03F2200/351
摘要： In a pulse width modulation amplifier use for audio devices, an input side of an operational amplifier of a pulse width modulation amplifier is used as an alternating current amplifier by grounding its negative terminal through a series circuit formed with a resistor and a capacitor. The direct current gain of the operational amplifier becomes 1, and the offset voltage decreases to the inherent offset voltage of the operational amplifier. The operational amplifier has no direct current coupling with next amplifying stage and hence, the offset voltage is not increased after leaving the operational amplifier. Also, the pulse width modulation amplifier includes negative feedback circuits connecting a final output stage to the input of the operational amplifier including a low-pass filter, each low-pass filter having a grounded capacitor, wherein the negative feedback signal is transmitted through another capacitor to the input of the operational amplifier to provide an alternating current coupling to reduce the influence of the carrier and its higher harmonics and other noises leaked to the operational amplifier through the feedback circuit.
摘要翻译： 在用于音频装置的脉冲宽度调制放大器中，脉冲宽度调制放大器的运算放大器的输入侧通过使用由电阻器和电容器形成的串联电路使负极端子接地而用作交流放大器。 运算放大器的直流增益为1，偏移电压降低到运算放大器的固有偏移电压。 运算放大器与下一个放大级没有直流耦合，因此在离开运算放大器之后，偏移电压不会增加。 此外，脉宽调制放大器包括将最终输出级与包括低通滤波器的运算放大器的输入连接的负反馈电路，每个低通滤波器具有接地电容器，其中负反馈信号通过另一电容器 到运算放大器的输入以提供交流耦合，以减少载波的影响及其通过反馈电路泄漏到运算放大器的高次谐波和其他噪声。
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公开(公告)号：US08139798B2
公开(公告)日：2012-03-20
申请号：US11668108
申请日：2007-01-29
IPC分类号： H04R5/02
CPC分类号： H04S7/302 , H04R2499/13
摘要： A sound reproducing apparatus is provided with a circuit comprising a first secondary phase shifter in a front stage of at least one of channels among a first power amplifier, a second power amplifier and a third power amplifier, and a second secondary phase shifter and an adder in at least one of remaining channels for providing an output by adding output signals of a music signal source and the second secondary phase shifter. The apparatus of this structure eliminates phase interferences between a center speaker and right and left speakers by controlling sound waves generated by the center speaker, thereby achieving excellent reproduction of music.
摘要翻译： 声音再现装置具有电路，该电路包括在第一功率放大器，第二功率放大器和第三功率放大器中的至少一个通道的前级中的第一辅助移相器，以及第二辅助移相器和加法器 在用于通过添加音乐信号源和第二辅助移相器的输出信号来提供输出的剩余通道中的至少一个。 该结构的装置通过控制由中心扬声器产生的声波来消除中间扬声器与左右扬声器之间的相位干扰，从而实现音乐的优异再现。
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19.发明授权公开(公告)号：US08116488B2
公开(公告)日：2012-02-14
申请号：US11911282
申请日：2006-04-06
IPC分类号： H04R5/02
CPC分类号： H04S7/30 , H04R3/00 , H04R2499/13 , H04S3/002
摘要： The sound reproducing apparatus for use with a signal source comprises, a first output unit connected to the signal source via a first power amplifier, a first phase shifter connected to the signal source, a second output unit connected to the first phase shifter via a second power amplifier, a second phase shifter connected to the signal source, a third output unit connected to the second phase shifter via a third power amplifier, a fourth phase shifter connected to a third phase shifter, and a fourth output unit connected to the fourth phase shifter via a fourth power amplifier, wherein the first output unit and the second output unit are in right and left relation with each other, the third output unit and the fourth output unit are in right and left relation with each other, a group of the first output unit and the second output unit and a group of the third output unit and the fourth output unit are in front and rear relation with each other. The vehicle is equipped with the sound reproducing apparatus. In this way, it is possible to obtain a sound reproducing apparatus improved in sound quality and a vehicle using the sound reproducing apparatus.
摘要翻译： 与信号源一起使用的声音再现装置包括：经由第一功率放大器连接到信号源的第一输出单元，连接到信号源的第一移相器，经由第二输出单元连接到第一移相器的第二输出单元 功率放大器，连接到信号源的第二移相器，经由第三功率放大器连接到第二移相器的第三输出单元，连接到第三移相器的第四移相器，以及连接到第四相位的第四输出单元 移位器经由第四功率放大器，其中所述第一输出单元和所述第二输出单元彼此处于右侧和左侧关系，所述第三输出单元和所述第四输出单元彼此处于右侧和左侧的关系中， 第一输出单元和第二输出单元以及第三输出单元和第四输出单元的组彼此处于前后关系。 车辆配备有声音再现装置。 以这种方式，可以获得提高音质的声音再现装置和使用声音再现装置的车辆。
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公开(公告)号：US07024015B2
公开(公告)日：2006-04-04
申请号：US10380043
申请日：2002-07-17
申请人： Akinori Hasegawa , Fumiyasu Konno
发明人： Akinori Hasegawa , Fumiyasu Konno
IPC分类号： H04R25/00
摘要： The speaker disclosed in this invention comprises: (a) a central cap fixed on voice coil bobbin; (b) a shaft fixed in the center of the central cap; and (c) a bearing filled with lubricating fluid and fixed in a through-hole disposed in the center of a magnetic circuit. The speaker has excellent characteristics without sliding noise or harmful rolling phenomena but with reduced harmonic distortion due to the introduction of a magnetic fluid or a lubricant used as a lubricating fluid.
摘要翻译： 本发明公开的扬声器包括：（a）固定在音圈架上的中央盖; （b）固定在中心帽中心的轴; 和（c）填充有润滑流体并固定在设置在磁路中心的通孔中的轴承。 扬声器具有优异的特性，无滑动噪声或有害的滚动现象，但是由于引入用作润滑流体的磁性流体或润滑剂，谐波失真减小。
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