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1. 发明申请

US20090003497A1 Digital signal processing device, digital signal processing method, and digital signal processing program 有权
标题翻译：数字信号处理装置，数字信号处理方法和数字信号处理程序
公开(公告)号：US20090003497A1
公开(公告)日：2009-01-01
申请号：US12214082
申请日：2008-06-17
申请人： Yasuyuki Kino , Tokihiko Sawashi
发明人： Yasuyuki Kino , Tokihiko Sawashi
IPC分类号： H04B1/10
CPC分类号： H03G7/007 , G10H7/002 , G10H2250/631 , G10H2250/635 , G10L21/0208
摘要： The present invention provides a digital signal processing device that considerably reduces a return noise generated in a processing result signal in specific signal processing without wastefully increasing the processing load. There is provided a digital signal processing device that executes specific signal processing under which a return noise is generated in a processing result signal which includes an up-sampling processing unit that performs the up-sampling processing for a digital signal with a predetermined up-sampling rate to generate an up-sampling signal, a specific signal processing unit that performs the specific signal processing for the up-sampling signal generated by the up-sampling processing unit to generate the processing result signal, and a down-sampling processing unit that performs the down-sampling processing for the processing result signal generated by the specific signal processing unit with a predetermined down-sampling rate to generate a down-sampling signal.
摘要翻译：本发明提供了一种数字信号处理装置，其在特定信号处理中大大减少了处理结果信号中产生的返回噪声，而不浪费地增加处理负荷。提供了一种数字信号处理装置，其执行特定信号处理，在该处理结果信号中产生返回噪声，处理结果信号包括上行采样处理单元，该上采样处理单元以预定的上采样执行数字信号的上采样处理以产生上采样信号的特定信号处理单元，对由上采样处理单元产生的上采样信号执行特定信号处理以产生处理结果信号的特定信号处理单元，以及执行下采样处理单元由特定信号处理单元以预定的下采样率产生的处理结果信号的下采样处理，以产生下采样信号。

2. 发明申请

US20070104331A1 Multi-channel audio system and method for generating virtual speaker sound 审中-公开
标题翻译：用于产生虚拟扬声器声音的多声道音频系统和方法
公开(公告)号：US20070104331A1
公开(公告)日：2007-05-10
申请号：US11583202
申请日：2006-10-18
申请人： Tokihiko Sawashi , Masahiro Okuno , Koji Kobayashi , Yasuyuki Kino
发明人： Tokihiko Sawashi , Masahiro Okuno , Koji Kobayashi , Yasuyuki Kino
IPC分类号： H04R5/00 , H04R5/02
CPC分类号： H04S7/302 , H04R2499/13 , H04S3/002 , H04S2400/01 , H04S2420/01
摘要： To realize sound output so that a listener does not feel unnaturalness, an audio signal for a center speaker is multiplied by a transfer function for a left speaker and a transfer function for a right speaker, respectively, and an audio component for a left center speaker and an audio component for a right center speaker that correspond to a listening point are generated. An audio signal for the left speaker and an audio signal for the right speaker are synthesized with the audio component for the left center speaker and the audio component for the right center speaker, respectively. Thereby, a sound image can be oriented as if a sound based on the audio signal for the center speaker is emitted from a position at which a center speaker would be set if the system had a center speaker.
摘要翻译：为了实现声音输出，使得收听者不感到不自然，分别将用于中间扬声器的音频信号乘以用于左扬声器的传递函数和用于右扬声器的传递函数，以及左中心扬声器的音频分量并且生成对应于收听点的用于右中心扬声器的音频分量。用于左扬声器的音频信号和用于右扬声器的音频信号分别用于左中心扬声器的音频分量和用于右中扬声器的音频分量。因此，如果系统具有中心扬声器，则声像可以被定向为好像基于用于中心扬声器的音频信号的声音从设置中置扬声器的位置发射。

3. 发明授权

US08195317B2 Data reproduction apparatus and data reproduction method 有权
标题翻译：数据再现装置和数据再现方法
公开(公告)号：US08195317B2
公开(公告)日：2012-06-05
申请号：US12038183
申请日：2008-02-27
申请人： Tokihiko Sawashi , Yasuyuki Kino
发明人： Tokihiko Sawashi , Yasuyuki Kino
IPC分类号： G06F17/00 , H04R29/00 , G10L19/00 , G11B20/10
CPC分类号： G11B20/00007 , G11B20/00992 , G11B20/10527 , G11B2020/00028 , G11B2020/00043 , G11B2020/00057
摘要： A data reproduction apparatus includes: arithmetic means for calculating difference data that indicate a difference between left-channel and right-channel data that have been compressed in a predetermined compression format; higher harmonic component generation means for generating a higher harmonic component, which was lost during compression, by performing, when the difference data's signal level exceeds a predetermined threshold, a digital limiter process that suppresses the signal level to the threshold; and adding means for adding the higher harmonic component to the left-channel and right-channel data to reproduce original data before being compressed.
摘要翻译：数据再现装置包括：算术装置，用于计算表示以预定压缩格式被压缩的左声道和右声道数据之间的差的差分数据; 高次谐波分量产生装置，用于通过在差分数据的信号电平超过预定阈值时执行抑制信号电平达阈值的数字限幅器处理，产生在压缩过程中丢失的高次谐波分量; 以及用于将高次谐波分量添加到左声道和右声道数据以在压缩之前再现原始数据的添加装置。

4. 发明申请

US20100135507A1 Clipping prevention device and clipping prevention method 审中-公开
标题翻译：防夹装置和防夹方法
公开(公告)号：US20100135507A1
公开(公告)日：2010-06-03
申请号：US12590618
申请日：2009-11-10
申请人： Yasuyuki Kino , Tokihiko Sawashi
发明人： Yasuyuki Kino , Tokihiko Sawashi
IPC分类号： H03G7/00 , G06F17/00 , G10L19/00
CPC分类号： H03G7/007
摘要： A clipping prevention device, includes: a compression section adapted to compress an input digital audio signal level; a digital-analog conversion section adapted to operate at a predetermined first operating voltage and convert the digital audio signal into an analog audio signal; an electronic volume control adapted to operate at a second operating voltage and amplify or attenuate the analog audio signal with a user-changeable amplification factor; and a control section adapted to calculate a clipping level based on the maximum amplification factor of the electronic volume control and the user-changeable amplification factor, the maximum amplification factor being determined when the analog audio signal at the maximum signal level is amplified to the maximum signal level, and also adapted to control the compression section so that the signal is compressed so as to prevent clipping of the analog audio signal amplified or attenuated by the electronic volume control.
摘要翻译：一种剪辑防止装置，包括：适于压缩输入数字音频信号电平的压缩部分; 数字模拟转换部分，适于在预定的第一操作电压下操作并将数字音频信号转换为模拟音频信号; 电子音量控制，适于在第二工作电压下工作，并以用户可变放大系数放大或衰减模拟音频信号; 以及控制部分，适于基于电子音量控制的最大放大系数和用户可变放大系数来计算限幅电平，当最大信号电平处的模拟音频信号被放大到最大值时确定最大放大系数信号电平，并且还适于控制压缩部分，使得信号被压缩，以便防止由电子音量控制放大或衰减的模拟音频信号的削波。

5. 发明申请

US20080225680A1 DATA REPRODUCTION APPARATUS AND DATA REPRODUCTION METHOD 有权
标题翻译：数据再现设备和数据复制方法
公开(公告)号：US20080225680A1
公开(公告)日：2008-09-18
申请号：US12038183
申请日：2008-02-27
申请人： Tokihiko SAWASHI , Yasuyuki Kino
发明人： Tokihiko SAWASHI , Yasuyuki Kino
IPC分类号： G11B5/027
CPC分类号： G11B20/00007 , G11B20/00992 , G11B20/10527 , G11B2020/00028 , G11B2020/00043 , G11B2020/00057
摘要： A data reproduction apparatus includes: arithmetic means for calculating difference data that indicate a difference between left-channel and right-channel data that have been compressed in a predetermined compression format; higher harmonic component generation means for generating a higher harmonic component, which was lost during compression, by performing, when the difference data's signal level exceeds a predetermined threshold, a digital limiter process that suppresses the signal level to the threshold; and adding means for adding the higher harmonic component to the left-channel and right-channel data to reproduce original data before being compressed.
摘要翻译：数据再现装置包括：算术装置，用于计算表示以预定压缩格式被压缩的左声道和右声道数据之间的差的差分数据; 高次谐波分量产生装置，用于通过在差分数据的信号电平超过预定阈值时执行抑制信号电平达阈值的数字限幅器处理，产生在压缩期间丢失的高次谐波分量; 以及用于将高次谐波分量添加到左声道和右声道数据以在压缩之前再现原始数据的添加装置。

6. 发明授权

US08180002B2 Digital signal processing device, digital signal processing method, and digital signal processing program 有权
标题翻译：数字信号处理装置，数字信号处理方法和数字信号处理程序
公开(公告)号：US08180002B2
公开(公告)日：2012-05-15
申请号：US12214082
申请日：2008-06-17
申请人： Yasuyuki Kino , Tokihiko Sawashi
发明人： Yasuyuki Kino , Tokihiko Sawashi
IPC分类号： H04B1/10
CPC分类号： H03G7/007 , G10H7/002 , G10H2250/631 , G10H2250/635 , G10L21/0208
摘要： The present invention provides a digital signal processing device that considerably reduces a return noise generated in a processing result signal in specific signal processing without wastefully increasing the processing load. There is provided a digital signal processing device that executes specific signal processing under which a return noise is generated in a processing result signal which includes an up-sampling processing unit that performs the up-sampling processing for a digital signal with a predetermined up-sampling rate to generate an up-sampling signal, a specific signal processing unit that performs the specific signal processing for the up-sampling signal generated by the up-sampling processing unit to generate the processing result signal, and a down-sampling processing unit that performs the down-sampling processing for the processing result signal generated by the specific signal processing unit with a predetermined down-sampling rate to generate a down-sampling signal.
摘要翻译：本发明提供了一种数字信号处理装置，其在特定信号处理中大大减少了处理结果信号中产生的返回噪声，而不浪费地增加处理负荷。提供了一种数字信号处理装置，其执行特定信号处理，在该处理结果信号中产生返回噪声，处理结果信号包括上行采样处理单元，该上采样处理单元以预定的上采样执行数字信号的上采样处理以产生上采样信号的特定信号处理单元，对由上采样处理单元产生的上采样信号执行特定信号处理以产生处理结果信号的特定信号处理单元，以及执行下采样处理单元由特定信号处理单元以预定的下采样率产生的处理结果信号的下采样处理，以产生下采样信号。

7. 发明授权

US08175303B2 Electronic apparatus for vehicle, and method and system for optimally correcting sound field in vehicle 失效
标题翻译：用于车辆的电子设备，以及用于车辆最佳校正声场的方法和系统
公开(公告)号：US08175303B2
公开(公告)日：2012-05-08
申请号：US11717059
申请日：2007-03-13
申请人： Tokihiko Sawashi , Yasuyuki Kino , Toshiaki Kobayashi
发明人： Tokihiko Sawashi , Yasuyuki Kino , Toshiaki Kobayashi
IPC分类号： H04R5/02 , H04B1/00 , H04R29/00 , H04R5/00
CPC分类号： H04S7/302 , H04R2499/13
摘要： A sound field in a vehicle can be further readily and optimally corrected without forcing a user to do troublesome work. As an embodiment of the present invention, a measurement sound emitted through a left speaker or a right speaker at a further position in a view from a driver's listening point that was assumed on the head touching surface of the headrest of the driver's seat or the passenger seat is picked up, with a microphone provided as buried on a front panel of a head unit to be attached to the almost center position between the driver's seat and the passenger seat in the vehicle. And the frequency characteristic of the above sound is corrected, based on a tendency that the frequency characteristic of an audio sound reaching from the left speaker or the right speaker to the microphone is almost approximate to the virtual frequency characteristic of an audio sound that will reach from the left speaker or the right speaker to the driver's listening point assumed on the head touching surface.
摘要翻译：车辆中的声场可以进一步容易地和最佳地校正，而不会强迫用户做麻烦的工作。作为本发明的一个实施例，在驾驶员座椅的头枕接触表面上假定的驾驶员的收听点上的另一个位置处，通过左扬声器或右扬声器发出的测量声音座椅被拾取，麦克风被提供为埋在头单元的前面板上以附接到驾驶员座椅和车辆中的乘客座椅之间的几乎中心位置。并且，基于从左扬声器或右扬声器到麦克风到达的音频声音的频率特性几乎接近将达到的音频声音的虚拟频率特性的趋势来校正上述声音的频率特性从左扬声器或右扬声器到头部接触表面上的驾驶员监听点。

8. 发明申请

US20100226498A1 Audio apparatus and audio processing method 审中-公开
标题翻译：音频设备和音频处理方法
公开(公告)号：US20100226498A1
公开(公告)日：2010-09-09
申请号：US12660401
申请日：2010-02-25
申请人： Yasuyuki Kino , Takeshi Momose , Tokihiko Sawashi
发明人： Yasuyuki Kino , Takeshi Momose , Tokihiko Sawashi
IPC分类号： H04R5/00
CPC分类号： G11B20/10527 , G11B2020/10601 , H04S3/008
摘要： The present invention provides an audio apparatus including: a decoding device configured to decode results of channel-by-channel reproduction of a multichannel sound source made up of at least a left channel, a right channel, and a center channel, and to down-mix the decoded results of channel-by-channel reproduction in accordance with the number of speakers configured in a speaker system without a center speaker corresponding to the center channel; an audio processing device configured to perform predetermined audio processing on the decoded results having undergone the down-mixing by the decoding device, and to get the processed results output from the speaker system; and a control device configured to control the audio processing device.
摘要翻译：本发明提供一种音频装置，包括：解码装置，被配置为解码由至少左声道，右声道和中心声道构成的多声道声源的逐个频道再现的结果，根据在扬声器系统中配置的扬声器的数量而不使中心扬声器对应于中心声道来混合逐个通道再现的解码结果; 音频处理装置，被配置为对已经经过解码装置的下混合的解码结果执行预定音频处理，并获得从扬声器系统输出的处理结果; 以及控制装置，被配置为控制音频处理装置。

9. 发明授权

US07769184B2 Apparatus and method for measuring sound field 有权
标题翻译：用于测量声场的装置和方法
公开(公告)号：US07769184B2
公开(公告)日：2010-08-03
申请号：US11496474
申请日：2006-08-01
申请人： Yasuyuki Kino , Akira Sakamoto , Tokihiko Sawashi , Koji Kobayashi , Masahiro Okuno
发明人： Yasuyuki Kino , Akira Sakamoto , Tokihiko Sawashi , Koji Kobayashi , Masahiro Okuno
IPC分类号： H04R29/00 , H04B15/00 , H03G5/00
CPC分类号： H04S7/30 , G01H5/00 , H04R29/00 , H04R2499/13 , H04S7/307
摘要： A sound field measurement apparatus includes a signal generating unit for outputting a burst signal, a driving unit for driving a speaker using the burst signal, a microphone for picking up an audio output from the speaker, an analog-digital converter for performing analog-digital conversion processing on an output signal from the microphone and outputting picked-up audio data, a filtering unit for performing filtering processing on the picked-up audio data, and an analyzing unit for determining a propagation time of the audio output from the speaker to the microphone in accordance with data output from the filtering unit. In this sound field measuring apparatus, the filtering unit is an IIR filter configured to filter the picked-up audio data forward and then backward along a time axis, or an IIR filter configured to filter the picked-up audio data backward and then forward along the time axis.
摘要翻译：声场测量装置包括用于输出脉冲串信号的信号产生单元，用于使用脉冲串信号驱动扬声器的驱动单元，用于拾取来自扬声器的音频输出的麦克风，用于执行模拟数字对来自麦克风的输出信号进行转换处理并输出拾取音频数据;滤波单元，用于对所拾取的音频数据进行滤波处理;以及分析单元，用于确定从扬声器输出的音频的传播时间麦克风根据过滤单元输出的数据。在该声场测量装置中，滤波单元是被配置为沿着时间轴向前，然后向后过滤所拾取的音频数据的IIR滤波器，或者被配置为向后过滤所拾取的音频数据然后向前沿时间轴。

10. 发明申请

US20070036364A1 Sound field compensating apparatus and sound field compensating method 审中-公开
标题翻译：声场补偿装置和声场补偿方法
公开(公告)号：US20070036364A1
公开(公告)日：2007-02-15
申请号：US11496511
申请日：2006-08-01
申请人： Masahiro Okuno , Yasuyuki Kino , Tokihiko Sawashi , Koji Kobayashi
发明人： Masahiro Okuno , Yasuyuki Kino , Tokihiko Sawashi , Koji Kobayashi
IPC分类号： H04R29/00
CPC分类号： H04R29/00
摘要： The sound field compensating apparatus includes a section that generates sound-volume regulating test signal; a driving section that drives a speaker; a microphone that receives the output from the speaker; and a control section that processes an output signal of the microphone and that controls operations of respective sections. The sound-volume regulating test signal is a sum signal representative of the sum of single-frequency sinusoidal wave signals whose frequencies are set to the relationship of an integer ratio. The control section causes the driving section to drive the speaker by using the sound-volume regulating test signal to thereby detect signal levels of frequency components of the sinusoidal wave signals from output signals of the microphone. In accordance with an average value of the signal levels, the control section sets a measuring sound volume when the speaker is driven by using the measuring test signal.
摘要翻译：声场补偿装置包括产生音量调节测试信号的部分; 驱动扬声器的驱动部分; 接收来自扬声器的输出的麦克风; 以及控制部分，其处理麦克风的输出信号并且控制各个部分的操作。音量调节测试信号是代表其频率被设置为整数比的关系的单频正弦波信号之和的和信号。控制部使驱动部通过使用音量调节测试信号来驱动扬声器，从而从麦克风的输出信号检测正弦波信号的频率成分的信号电平。根据信号电平的平均值，控制部分通过使用测量测试信号来设定扬声器被驱动时的测量音量。

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