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1. 发明授权

US10811026B2 Noise suppression method, device, and program 有权
公开(公告)号：US10811026B2
公开(公告)日：2020-10-20
申请号：US12307542
申请日：2007-06-29
申请人： Akihiko Sugiyama
发明人： Akihiko Sugiyama
IPC分类号： G10L21/02 , G10L21/0208 , G10L21/0216
摘要： It is possible to provide a noise suppression method, device, and program capable of realizing a sound image positioning of an output side corresponding to an input side with a small calculation amount. The device includes a common suppression coefficient calculation unit for receiving conversion outputs from a plurality of channels and calculating a suppression coefficient common to the channels.

2. 发明授权

US09613632B2 Signal processing device, signal processing method and signal processing program 有权
公开(公告)号：US09613632B2
公开(公告)日：2017-04-04
申请号：US13878943
申请日：2011-09-26
申请人： Akihiko Sugiyama
发明人： Akihiko Sugiyama
IPC分类号： G10L21/00 , G10L21/0208 , H04M9/08 , G10L21/0216
CPC分类号： G10L21/0208 , G10L2021/02165 , H04M9/082
摘要： To achieve sufficient noise cancellation when a reference signal cannot be captured in the proximity of a noise source.The present invention is characterized by comprising: a first input means for obtaining a first mixed signal in which a first signal and a second signal are mixed; a second input means for obtaining a second mixed signal in which the first signal and the second signal are mixed in a different ratio from the first mixed signal; a delay means for generating a delayed first mixed signal by delaying the first mixed signal with a delay amount based on transmission distance from a generation source of the second signal to the second input means; a subtracting means for outputting an estimated first signal in which a pseudo second signal is subtracted from the delayed first mixed signal; and an adaptive filtering means for generating the pseudo second signal applying coefficients which are updated based on the estimated first signal to the second mixed signal.

3. 发明申请

US20130282370A1 SPEECH PROCESSING APPARATUS, CONTROL METHOD THEREOF, STORAGE MEDIUM STORING CONTROL PROGRAM THEREOF, AND VEHICLE, INFORMATION PROCESSING APPARATUS, AND INFORMATION PROCESSING SYSTEM INCLUDING THE SPEECH PROCESSING APPARATUS 审中-公开
标题翻译：语音处理装置，其控制方法，存储媒体存储控制程序及车辆信息处理装置以及包括语音处理装置的信息处理系统
公开(公告)号：US20130282370A1
公开(公告)日：2013-10-24
申请号：US13978446
申请日：2011-12-03
申请人： Takayuki Arakawa , Akihiko Sugiyama
发明人： Takayuki Arakawa , Akihiko Sugiyama
IPC分类号： G10L21/0208
CPC分类号： G10L21/0208 , G10L15/20 , G10L21/0216 , H04R1/342 , H04R3/005 , H04R2410/05 , H04R2499/11 , H04R2499/13
摘要： An apparatus of this invention is a speech processing apparatus that acquires pseudo speech from a mixture sound including desired speech and noise. The speech processing apparatus includes a first microphone that inputs a first mixture sound including desired speech and noise and outputs a first mixture signal, a second microphone that is opened to the same sound space as that of the first microphone, inputs a second mixture sound including the desired speech and the noise at a ratio different from the first mixture sound, and outputs a second mixture signal, a first sound collector including a concave surface that collects the first mixture sound to the first microphone, a second sound collector including a concave surface that collects the second mixture sound to the second microphone and disposed in a direction different from the first sound collector, and a noise suppression circuit that suppresses an estimated noise signal based on the first mixture signal and the second mixture signal and outputs a pseudo speech signal. With this arrangement, it is possible to, in a single sound space where desired speech and noise mix, collect the desired speech and the noise, correctly estimate the noise, and reconstruct pseudo speech close to the desired speech.
摘要翻译：本发明的装置是从包含所需语音和噪声的混合声音中获取伪语音的语音处理装置。语音处理装置包括第一麦克风，其输入包括所需语音和噪声的第一混合声音并输出第一混合信号，打开到与第一麦克风相同的声音空间的第二麦克风输入包括以与第一混合声音不同的比例的期望语音和噪声，并且输出第二混合信号，包括收集第一混合声音的凹面的第一收音器到第一麦克风，第二声音收集器，包括凹面其将第二混合声音收集到第二麦克风并且设置在与第一声音收集器不同的方向上;噪声抑制电路，其基于第一混合信号和第二混合信号抑制估计的噪声信号，并输出伪语音信号。通过这种布置，可以在需要的语音和噪声混合的单个声音空间中收集所需的语音和噪声，正确地估计噪声，并重建接近期望语音的伪语音。

4. 发明申请

US20130191119A1 SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING PROGRAM 有权
标题翻译：信号处理设备，信号处理方法和信号处理程序
公开(公告)号：US20130191119A1
公开(公告)日：2013-07-25
申请号：US13877593
申请日：2011-09-15
申请人： Akihiko Sugiyama
发明人： Akihiko Sugiyama
IPC分类号： G10L21/0208
CPC分类号： G10L21/0208 , G10L21/0224 , G10L2021/02082 , G10L2021/02165 , H03H21/0012 , H03H21/0067 , H03H2021/0072 , H03H2021/0078 , H03H2021/0094 , H04B3/23 , H04M9/082
摘要： From a mixed signal in which a first signal and a second signal are mixed, the second signal is removed at low processing cost and without delay. As a result, an estimated first signal which has low residue of the second signal and low distortion is obtained.An estimated first signal is generated by subtracting a pseudo second signal which is estimated to be mixed in a first mixed signal in which a first signal and a second signal are mixed from the first mixed signal. The pseudo second signal is obtained by a first adaptive filter using a second mixed signal in which the first signal and the second signal are mixed in a different proportion from the first mixed signal. A coefficient update amount of the first adaptive filter is made smaller as compared with a case when the estimated first signal is smaller than the first mixed signal, in case the estimated first signal is larger than the first mixed signal.
摘要翻译：从第一信号和第二信号混合的混合信号中，以低处理成本且没有延迟地去除第二信号。结果，获得具有第二信号的低残差和低失真的估计的第一信号。通过从第一混合信号中减去第一混合信号和第二信号混合的第一混合信号中估计混合的伪第二信号来产生估计的第一信号。伪第二信号通过使用第二混合信号的第一自适应滤波器获得，其中第一信号和第二信号以与第一混合信号不同的比例混合。与估计的第一信号小于第一混合信号的情况相比，在估计的第一信号大于第一混合信号的情况下，使第一自适应滤波器的系数更新量更小。

5. 发明申请

US20130170514A1 LASER MACHINE AND CONTROLLING METHOD OF LASER MACHINE 有权
标题翻译：激光机激光打标机及其控制方法
公开(公告)号：US20130170514A1
公开(公告)日：2013-07-04
申请号：US13816614
申请日：2011-09-05
申请人： Akihiko Sugiyama , Yoshinao Miyamoto , Takahiro Mori
发明人： Akihiko Sugiyama , Yoshinao Miyamoto , Takahiro Mori
IPC分类号： H01S3/041
CPC分类号： H01S3/041 , H01S3/0014 , H01S3/0407 , H01S3/097 , H01S3/2232
摘要： A laser machine includes a laser oscillator, a cooler for cooling the laser oscillator, and a control unit for controlling the laser oscillator and the cooler. The control unit includes a controller that stops base discharge of the laser oscillator at a time when a specified time has elapsed from a stop of laser light emission by the laser oscillator. According to the laser machine, since base discharge of the laser oscillator is stopped after the specified time has elapsed from the stop of laser light emission, wasteful energy (power) consumption of the laser oscillator in a standby state can be restricted.
摘要翻译：激光机包括激光振荡器，用于冷却激光振荡器的冷却器，以及用于控制激光振荡器和冷却器的控制单元。控制单元包括控制器，该控制器在从激光振荡器的激光停止发生指定的时间经过时停止激光振荡器的基本放电。根据激光机，由于从停止激光发光经过规定时间后激光振荡器的基极放电停止，因此可以限制待机状态下的激光振荡器的浪费的能量（功率）消耗。

6. 发明授权

US08477963B2 Method, apparatus, and computer program for suppressing noise 有权
标题翻译：用于抑制噪声的方法，装置和计算机程序
公开(公告)号：US08477963B2
公开(公告)日：2013-07-02
申请号：US13532185
申请日：2012-06-25
申请人： Akihiko Sugiyama , Masanori Katou
发明人： Akihiko Sugiyama , Masanori Katou
IPC分类号： H04B15/00
CPC分类号： G10L21/0208
摘要： A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.
摘要翻译：提供了能够以少量计算来抑制低频范围分量并且可以实现高质量噪声抑制的方法，装置和计算机程序。通过将输入信号转换为频域信号来抑制叠加在输入信号的期望信号中的噪声; 校正频域信号的幅度以获得幅度校正信号; 通过使用振幅校正信号获得估计噪声; 通过使用所估计的噪声和幅度校正信号来确定抑制系数; 并用抑制系数对幅度校正信号进行加权。

7. 发明申请

US20120288115A1 Method, Apparatus, and Computer Program For Suppressing Noise 有权
标题翻译：用于抑制噪声的方法，装置和计算机程序
公开(公告)号：US20120288115A1
公开(公告)日：2012-11-15
申请号：US13532185
申请日：2012-06-25
申请人： Akihiko Sugiyama , Masanori Katou
发明人： Akihiko Sugiyama , Masanori Katou
IPC分类号： H04B15/00
CPC分类号： G10L21/0208
摘要： A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.
摘要翻译：提供了能够以少量计算来抑制低频范围分量并且可以实现高质量噪声抑制的方法，装置和计算机程序。通过将输入信号转换为频域信号来抑制叠加在输入信号的期望信号中的噪声; 校正频域信号的幅度以获得幅度校正信号; 通过使用振幅校正信号获得估计噪声; 通过使用所估计的噪声和幅度校正信号来确定抑制系数; 并用抑制系数对幅度校正信号进行加权。

8. 发明申请

US20120033828A1 Signal Processing Method and Apparatus, and Recording Medium in Which a Signal Processing Program is Recorded 有权
标题翻译：信号处理方法和装置以及记录信号处理程序的记录介质
公开(公告)号：US20120033828A1
公开(公告)日：2012-02-09
申请号：US13273322
申请日：2011-10-14
申请人： Akihiko Sugiyama , Masanori Kato
发明人： Akihiko Sugiyama , Masanori Kato
IPC分类号： H04B15/00
CPC分类号： G10L21/0208 , G10L19/265
摘要： A signal processing method for converting a signal received via a transmission path or read from a storage medium into a first audible signal, and suppressing a noise other than a desired signal contained in the first audible signal based on predetermined audio quality adjustment information, comprising steps of: in suppressing a noise other than a desired signal contained in the first audible signal to generate an enhanced signal, receiving audio quality adjustment information for adjusting audio quality; and adjusting audio quality of the enhanced signal using the audio quality adjustment information
摘要翻译：一种信号处理方法，用于将经由传输路径接收的信号或从存储介质读取的信号转换为第一可听信号，并且基于预定的音频质量调整信息抑制除了包含在第一可听信号中的期望信号之外的噪声，信号处理方法包括步骤：在抑制除了包含在第一可听信号中的期望信号之外的噪声以产生增强信号，接收用于调节音频质量的音频质量调整信息; 以及使用音频质量调整信息来调整增强信号的音频质量

9. 发明申请

US20110176688A1 SIGNAL PROCESSING METHOD, SIGNAL PROCESSING DEVICE, AND SIGNAL PROCESSING PROGRAM 有权
标题翻译：信号处理方法，信号处理装置和信号处理程序
公开(公告)号：US20110176688A1
公开(公告)日：2011-07-21
申请号：US13120777
申请日：2009-09-15
申请人： Akihiko Sugiyama
发明人： Akihiko Sugiyama
IPC分类号： H04B3/20
CPC分类号： H04M9/082 , H03H21/0012 , H03H21/0043 , H04B3/23 , H04M3/56 , H04N7/15 , H04R3/02
摘要： Provided is a signal processing method which receives a plurality of reception signals and subtracts pseudo-echoes generated by a plurality of adaptive filters which input the reception signals, from a plurality of echoes generated by the reception signals, thereby reducing the echoes. The method delays two or more of the reception signals so as to generate delayed reception signals and inputs the reception signals and the delayed reception signals to the adaptive filters so as to generate pseudo-echoes.
摘要翻译：提供一种信号处理方法，其从接收信号产生的多个回波中接收多个接收信号并减去由输入接收信号的多个自适应滤波器生成的伪回波，从而减少回波。该方法延迟两个或更多个接收信号，以产生延迟的接收信号，并将接收信号和延迟的接收信号输入到自适应滤波器，以便产生伪回波。

10. 发明申请

US20100198990A1 MULTI-POINT CONNECTION DEVICE, SIGNAL ANALYSIS AND DEVICE, METHOD, AND PROGRAM 有权
标题翻译：多点连接设备，信号分析和设备，方法和程序
公开(公告)号：US20100198990A1
公开(公告)日：2010-08-05
申请号：US12666827
申请日：2008-06-26
申请人： Osamu Shimada , Toshiyuki Nomura , Akihiko Sugiyama , Osamu Houshuyama
发明人： Osamu Shimada , Toshiyuki Nomura , Akihiko Sugiyama , Osamu Houshuyama
IPC分类号： G06F15/16
CPC分类号： H04N7/152 , G10L19/008 , H04M3/56
摘要： Provided is a multi-point connection device including: a first signal receiving unit which receives a first signal containing a plurality of constituent elements and first analysis information expressing the relationship between the constituent elements contained in the first signal; a second signal receiving unit which receives a second signal containing a plurality of constituent elements and second analysis information expressing the relationship between the constituent elements contained in the second signal; a signal mixing unit which mixes the first signal and the second signal; and an analysis information mixing unit which mixes the first analysis information and the second analysis information.
摘要翻译：提供一种多点连接装置，包括：第一信号接收单元，其接收包含多个构成要素的第一信号和表示包含在第一信号中的构成要素之间的关系的第一分析信息; 第二信号接收单元，其接收包含多个构成要素的第二信号和表示包含在第二信号中的构成要素之间的关系的第二分析信息; 混合第一信号和第二信号的信号混合单元; 以及混合第一分析信息和第二分析信息的分析信息混合单元。

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