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1.发明授权公开(公告)号：US07076068B2
公开(公告)日：2006-07-11
申请号：US10231741
申请日：2002-11-25
IPC分类号： H04R5/00
摘要： A three-dimensional sound reproducing apparatus is configured by cascading a sound field effect adding unit and a crosstalk canceling unit. The sound field effect adding unit adds a predetermined three-dimensional sound field effect to an input audio signal, thereby generating audio signals respectively corresponding to left and right channels. The crosstalk canceling unit performs a calculation process on the audio signals of the two channels so that, when the audio signals are respectively generated by two loudspeakers positioned in front of a listener, the audio signals reach the left and right ears of the listener without producing crosstalk. The resulting audio signals are supplied to the loudspeakers, respectively. A sound image localizing unit receives two-channel audio signals which are obtained by encoding a center-channel audio signal, a left-channel audio signal, a right-channel audio signal, and a nonlocalization audio signal, and outputs two-channel audio signals in which sound images are to be respectively localized at virtual loudspeakers.
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2.发明授权公开(公告)号：US07082201B2
公开(公告)日：2006-07-25
申请号：US10232984
申请日：2002-08-30
申请人： Hiromi Sotome , Shigeo Ando , Shinichi Muramatsu , Akio Takahashi
发明人： Hiromi Sotome , Shigeo Ando , Shinichi Muramatsu , Akio Takahashi
IPC分类号： H04R5/00
摘要： A three-dimensional sound reproducing apparatus is configured by cascading a sound field effect adding unit and a crosstalk canceling unit. The sound field effect adding unit adds a predetermined three-dimensional sound field effect to an input audio signal, thereby generating audio signals respectively corresponding to left and right channels. The crosstalk canceling unit performs a calculation process on the audio signals of the two channels so that, when the audio signals are respectively generated by two loudspeakers positioned in front of a listener, the audio signals reach the left and right ears of the listener without producing crosstalk. The resulting audio signals are supplied to the loudspeakers, respectively. A sound image localizing unit receives two-channel audio signals which are obtained by encoding a center-channel audio signal, a left-channel audio signal, a right-channel audio signal, and a nonlocalization audio signal, and outputs two-channel audio signals in which sound images are to be respectively localized at virtual loudspeakers.
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3.发明授权公开(公告)号：US06850621B2
公开(公告)日：2005-02-01
申请号：US08878949
申请日：1997-06-19
申请人： Hiromi Sotome , Shigeo Ando , Shinichi Muramatsu , Akio Takahashi
发明人： Hiromi Sotome , Shigeo Ando , Shinichi Muramatsu , Akio Takahashi
摘要： A three-dimensional sound reproducing apparatus is configured by cascading a sound field effect adding unit and a crosstalk canceling unit. The sound field effect adding unit adds a predetermined three-dimensional sound field effect to an input audio signal, thereby generating audio signals respectively corresponding to left and right channels. The crosstalk canceling unit performs a calculation process on the audio signals of the two channels so that, when the audio signals are respectively generated by two loudspeakers positioned in front of a listener, the audio signals reach the left and right ears of the listener without producing crosstalk. The resulting audio signals are supplied to the loudspeakers, respectively. A sound image localizing unit receives two-channel audio signals which are obtained by encoding a center-channel audio signal, a left-channel audio signal, a right-channel audio signal, and a nonlocalization audio signal, and outputs two-channel audio signals in which sound images are to be respectively localized at virtual loudspeakers.
摘要翻译： 通过级联声场效应添加单元和串扰消除单元来配置三维声音再现设备。 声场效应添加单元将预定的三维声场效果添加到输入音频信号，从而分别产生与左声道和右声道相对应的音频信号。 串扰抵消单元对两个声道的音频信号执行计算处理，使得当音频信号分别由位于收听者前方的两个扬声器产生时，音频信号到达收听者的左耳和右耳，而不产生 相声。 所产生的音频信号分别被提供给扬声器。 声像定位单元接收通过编码中心声道音频信号，左声道音频信号，右声道音频信号和非本地化音频信号而获得的双声道音频信号，并输出双声道音频信号 其中声音图像将分别地定位在虚拟扬声器处。
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公开(公告)号：US20110235848A1
公开(公告)日：2011-09-29
申请号：US13133404
申请日：2009-11-30
申请人： Fumihito Meguro , Tomomi Nakatsuka , Masashi Hori , Hiromi Sotome , Masahiro Iwata , Kuniyuki Kobayashi
发明人： Fumihito Meguro , Tomomi Nakatsuka , Masashi Hori , Hiromi Sotome , Masahiro Iwata , Kuniyuki Kobayashi
IPC分类号： H04R9/06
CPC分类号： H04R7/045 , H04R2440/05
摘要： A flat acoustic transducer (100) includes a permanent magnet (10) and a magnetic member (20), which are arranged adjacent to each other with a predetermined interval, a flat vibrating membrane (30), provided facing the permanent magnet (10) and the magnetic member (20), and at least one coil (40), fixed to the vibrating membrane (30). In the flat acoustic transducer (100), an electrical signal is applied to the coil (40), to obtain vibration force (F) on the vibrating membrane (30) by way of a magnetic flux Φ generated between a magnetic pole face (12) of the permanent magnet (10) and the magnetic member (20), a step (50) is provided between the magnetic pole face (12) and the upper face (22) of the magnetic member (20), while at least part of a winding (42) of the coil (40) at the time of no application of an electrical signal is arranged inside the step (50).
摘要翻译： 扁平的声学换能器（100）包括以预定的间隔彼此相邻布置的永磁体（10）和磁性构件（20），面向永磁体（10）设置的平坦的振动膜（30） 和所述磁性部件（20）以及固定在所述振动膜（30）上的至少一个线圈（40）。 在扁平声换能器（100）中，通过在磁极面（12）之间产生的磁通φ，向线圈（40）施加电信号，以获得振动膜（30）上的振动力（F） ）和所述磁性构件（20）之间，在所述磁极面（12）与所述磁性构件（20）的上表面（22）之间设置有台阶（50） 在不施加电信号时线圈（40）的绕组（42）布置在台阶（50）的内部。
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公开(公告)号：US4999628A
公开(公告)日：1991-03-12
申请号：US539433
申请日：1990-06-15
申请人： Yuji Kakubo , Hiromi Sotome
发明人： Yuji Kakubo , Hiromi Sotome
IPC分类号： H03M1/18
CPC分类号： H03M1/188
摘要： An analog-to-digital converting unit comprises an analog level varying circuit having a plurality of gains and varying a magnitude of an analog input signal for producing a plurality of analog output signals different in magnitude from one another with the respective gains, a plurality of analog-to-digital converting circuits respectively supplied with the analog output signals and producing a plurality of digital code signals, respectively, a controlling circuit supplied with two of the digital code signals and calculating a difference therebetween for producing a first control signal indicative of varying one of the digital code signals in value so as to be equal in value to the other digital code signal, a calculating circuit responsive to the first control signal and causing one of the digital code signals to be varied in value for producing a candidate of a digital output signal, and an output circuit coupled to one of the analog-to-digital converting circuits and to the calculating circuit and supplying the digital output signal to the output node. Since the value of the input analog signal is retrieved from the digital code signal on the basis of the difference, the analog-to-digital unit is free from any secular changes and any variation of operational ambient.
摘要翻译： 模数转换单元包括具有多个增益并且改变模拟输入信号的大小的模拟电平变化电路，用于产生具有相应增益的彼此大小不同的多个模拟输出信号，多个 分别提供有模拟输出信号并产生多个数字代码信号的模拟 - 数字转换电路，分别提供有两个数字代码信号并计算它们之间的差异的控制电路，以产生指示变化的第一控制信号 所述数字码信号中的一个值与所述另一数字码信号的值相等，所述计算电路响应于所述第一控制信号，并使所述数字码信号中的一个值变化以产生 数字输出信号和耦合到模数转换电路之一和计算的输出电路 并将数字输出信号提供给输出节点。 由于根据差异从数字代码信号中检索输入模拟信号的值，所以模拟 - 数字单元没有任何长期变化和操作环境的任何变化。
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公开(公告)号：US08542862B2
公开(公告)日：2013-09-24
申请号：US13133404
申请日：2009-11-30
申请人： Fumihito Meguro , Tomomi Nakatsuka , Masashi Hori , Hiromi Sotome , Masahiro Iwata , Kuniyuki Kobayashi
发明人： Fumihito Meguro , Tomomi Nakatsuka , Masashi Hori , Hiromi Sotome , Masahiro Iwata , Kuniyuki Kobayashi
CPC分类号： H04R7/045 , H04R2440/05
摘要： A flat acoustic transducer (100) includes a permanent magnet (10) and a magnetic member (20), which are arranged adjacent to each other with a predetermined interval, a flat vibrating membrane (30), provided facing the permanent magnet (10) and the magnetic member (20), and at least one coil (40), fixed to the vibrating membrane (30). In the flat acoustic transducer (100), an electrical signal is applied to the coil (40), to obtain vibration force (F) on the vibrating membrane (30) by way of a magnetic flux Φ generated between a magnetic pole face (12) of the permanent magnet (10) and the magnetic member (20), a step (50) is provided between the magnetic pole face (12) and the upper face (22) of the magnetic member (20), while at least part of a winding (42) of the coil (40) at the time of no application of an electrical signal is arranged inside the step (50).
摘要翻译： 扁平的声学换能器（100）包括以预定的间隔彼此相邻布置的永磁体（10）和磁性构件（20），面向永磁体（10）设置的平坦的振动膜（30） 和所述磁性部件（20）以及固定在所述振动膜（30）上的至少一个线圈（40）。 在扁平声换能器（100）中，通过在磁极面（12）之间产生的磁通量Phi向线圈（40）施加电信号，以获得振动膜（30）上的振动力（F） ）和所述磁性构件（20）之间，在所述磁极面（12）与所述磁性构件（20）的上表面（22）之间设置有台阶（50） 在不施加电信号时线圈（40）的绕组（42）布置在台阶（50）的内部。
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公开(公告)号：US06731765B1
公开(公告)日：2004-05-04
申请号：US08935476
申请日：1997-09-24
申请人： Hiromi Sotome
发明人： Hiromi Sotome
IPC分类号： H04R2500
CPC分类号： H04R5/02 , H04R2205/022
摘要： A loudspeaker device includes left and right channel loudspeaker units which are disposed on left and right sides in close proximity to each other, and a partition member projecting forwardly in the direction of propagation of sound from the loudspeaker units by a predetermined distance from a position between the loudspeaker units on a plane of a baffle on which the loudspeaker units are mounted.
摘要翻译： 扬声器装置包括左右声道扬声器单元，其布置在彼此靠近的左侧和右侧;以及分隔构件，其沿着声音从扬声器单元传播的方向向前突出预定距离， 扬声器单元在其上安装有扬声器单元的挡板的平面上。
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公开(公告)号：US5365468A
公开(公告)日：1994-11-15
申请号：US121212
申请日：1993-09-14
申请人： Yuji Kakubo , Shigeki Kimura , Hiromi Sotome , Koji Niimi
发明人： Yuji Kakubo , Shigeki Kimura , Hiromi Sotome , Koji Niimi
CPC分类号： H03H17/0628 , G06F17/17
摘要： A sampling frequency converter includes an oversampling circuit for oversampling an input sample train, a Random Access Memory (RAM), a write control circuit for writing oversampled data in the RAM with a clock synchronized with the oversampled data, a sampling frequency ratio measuring circuit for measuring a frequency ratio of a sampling frequency of the input sample train and a sampling frequency of an output sample train, a read control circuit for reading from the RAM the oversampled data used for obtaining interpolation data at two points before and after an output sample value which realizes the measured sampling frequency ratio by a polynomial interpolation, a polynomial interpolation circuit for obtaining the interpolation data at the two points by the polynomial interpolation on the basis of the oversampled data read from the RAM by the read control circuit, and a linear interpolation circuit for linear-interpolating between the polynomial interpolation data at the two points and thereby obtaining the output sample value realizing the sampling frequency ratio. The sampling frequency ratio measuring circuit may include a counter and a count outputting circuit which measures a count for plural word periods of the output sample and outputs this count as the measured value of the sampling frequency ratio.
摘要翻译： 采样频率转换器包括用于对输入采样串进行过采样的过采样电路，随机存取存储器（RAM），用于以与过采样数据同步的时钟在RAM中写入过采样数据的写控制电路，采样频率比测量电路， 测量输入样本列的采样频率和输出样本列的采样频率的频率比，读取控制电路，用于从RAM读取用于在输出采样值之前和之后的两点处获得插值数据的过采样数据 其通过多项式插值来实现测量的采样频率比;多项式插值电路，用于通过多项式插值，根据由读取控制电路从RAM读出的过采样数据，获得两点处的插值数据;以及线性插值 在两点之间的多项式插值数据之间进行线性插值的电路 从而获得实现采样频率比的输出采样值。 采样频率比测量电路可以包括计数器和计数输出电路，其测量输出采样的多个字周期的计数，并将该计数作为采样频率比的测量值输出。
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公开(公告)号：US5146507A
公开(公告)日：1992-09-08
申请号：US482826
申请日：1990-02-21
申请人： Yuji Satoh , Hiromi Sotome , Yoshiki Fukazawa , Kiyoto Kuroiwa
发明人： Yuji Satoh , Hiromi Sotome , Yoshiki Fukazawa , Kiyoto Kuroiwa
摘要： An audio reproduction characteristic control device reproduces various sound fields by producing reflected sounds of a reproduced source signal. Frequency response characteristic correction parameters for correcting a frequency response characteristic which varies with a reproduction environment to a standard characteristic or other predetermined characteristic is prestored in a memory and one of these parameters is read out in accordance with a designated reproduction environment and, if necessary, additionally with a designated sound field whereby the frequency response characteristic is corrected. In another aspect of the invention, reflected sound signals for front left, front right, rear left and rear right positions of a designated sound field are generated by operating input source signals with reflected sound characteristic parameters and these reflected sound signals are added to the source signals to be propagated from four directions in a space inside of an automobile. An impression of presence in the automobile thereby is improved.
摘要翻译： 音频再现特性控制装置通过产生再现的源信号的反射声音再现各种声场。 用于将根据再现环境变化到标准特性或其它预定特性的频率响应特性的频率响应特性校正参数预先存储在存储器中，并且根据指定的再现环境读出这些参数中的一个，并且如果需要， 另外具有指定的声场，由此校正频率响应特性。 在本发明的另一方面中，通过用反射的声音特征参数操作输入源信号来产生指定声场的前左，前右，后左和后右位置的反射声音信号，并将这些反射的声音信号添加到源 信号从汽车内的空间中的四个方向传播。 从而改善了在汽车中的存在印象。
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