公开(公告)号：US20090262951A1

公开(公告)日：2009-10-22

申请号：US12360213

申请日：2009-01-27

申请人： Taro Togawa ,  Takeshi Otani ,  Kaori Endo ,  Yasuji Ota

发明人： Taro Togawa ,  Takeshi Otani ,  Kaori Endo ,  Yasuji Ota

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/3032

摘要： An active noise control apparatus that controls by a control sound a noise which is output from a noise source, includes: a control sound generating section which inputs a control signal, and produce the control sound; a residual noise detecting section which detects, as a residual noise signal, a noise remaining after the noise control by the control sound; a control signal generating section which inputs, as a reference signal, a signal concerning the noise or the generation state of the noise, and generates the control signal; and a controlling section which inputs the control signal and the residual noise signal, detects the components that cannot be identified in the control signal generating section, and controls the generation of the control signal in the control signal generating section.

摘要翻译： 一种主动噪声控制装置，其通过控制声音控制从噪声源输出的噪声，包括：控制声音产生部，其输入控制信号，并产生控制声; 剩余噪声检测部分，通过控制声音检测噪声控制之后剩余的噪声作为残余噪声信号; 控制信号生成部，其输入与噪声或噪声的生成状态有关的信号作为参考信号，生成控制信号; 以及输入控制信号和残留噪声信号的控制部，检测在控制信号生成部中不能识别的成分，并控制控制信号生成部中的控制信号的生成。

公开(公告)号：US20080208598A1

公开(公告)日：2008-08-28

申请号：US11967403

申请日：2007-12-31

申请人： Kaori Endo ,  Yasuji Ota ,  Chikako Matsumoto

发明人： Kaori Endo ,  Yasuji Ota ,  Chikako Matsumoto

IPC分类号： G10L21/02

CPC分类号： G10L25/90 ,  G10L19/005

摘要： When there are missing voice-transmission-signals, a repetition-section calculating unit sets a plurality of repetition sections of different lengths that are determined to be similar to the voice-transmission-signals preceding the missing voice-transmission-signal, the repetition sections being determined with respect to stationary voice-transmission-signals stored in a normal signal storage unit, the stationary voice-transmission-signals being selected from the previously input voice-transmission-signals. A controller generates a concealment signal using the repetition sections.

摘要翻译： 当缺少语音传输信号时，重复部分计算单元设置确定为类似于丢失语音传输信号之前的语音传输信号的不同长度的多个重复部分，重复部分 相对于存储在正常信号存储单元中的固定语音传输信号来确定，所述固定语音传输信号是从先前输入的语音传输信号中选择的。 控制器使用重复部分产生隐藏信号。

公开(公告)号：US20070265840A1

公开(公告)日：2007-11-15

申请号：US11826122

申请日：2007-07-12

申请人： Mitsuyoshi Matsubara ,  Takeshi Otani ,  Kaori Endo ,  Yasuji Ota

发明人： Mitsuyoshi Matsubara ,  Takeshi Otani ,  Kaori Endo ,  Yasuji Ota

IPC分类号： G10L19/14 ,  G10L21/00

CPC分类号： G10L21/0208 ,  G10L25/48 ,  G10L25/78

摘要： In a signal processing method and device which enhance a following speed of an estimated noise in a steep rise section of a noise level and generate little estimation error of a noise spectrum due to an influence of voice in a voice section, a time domain signal that is sampled data of an input signal is extracted, the time domain signal is converted into a frequency domain signal per frame, and an input spectrum is calculated. Furthermore, a minimum value of the input spectrum is acquired, so that a noise spectrum that is a frequency domain signal of a noise component included in the input voice signal is estimated. Moreover, the input spectrum is compared with the noise spectrum, so that whether a section is in a noise section or a mixed section where voice and noise are mixed is determined.

摘要翻译： 在噪声电平的急剧上升部分中增强估计噪声的跟随速度的信号处理方法和装置中，由于语音部分中的语音的影响而产生的噪声频谱的估计误差很小，时域信号 提取输入信号的采样数据，将时域信号每帧转换成频域信号，并计算输入频谱。 此外，获取输入频谱的最小值，从而估计作为包括在输入语音信号中的噪声成分的频域信号的噪声谱。 此外，将输入频谱与噪声频谱进行比较，从而确定是否在噪声部分或混合声音和噪声的混合部分中。

公开(公告)号：US20070232257A1

公开(公告)日：2007-10-04

申请号：US11727062

申请日：2007-03-23

申请人： Takeshi Otani ,  Mitsuyoshi Matsubara ,  Kaori Endo ,  Yasuji Ota

发明人： Takeshi Otani ,  Mitsuyoshi Matsubara ,  Kaori Endo ,  Yasuji Ota

IPC分类号： H04Q7/20

CPC分类号： G10L21/0208 ,  G10L25/18

摘要： A noise suppressor includes a frequency division part dividing an input signal into bands and outputting band signals; an amplitude calculation part determining amplitude components of the band signals; a noise estimation part estimating an amplitude component of noise contained in the input signal and determining an estimated noise amplitude component for each band; a weighting factor generation part generating a different weighting factor for each band; an amplitude smoothing part determining smoothed amplitude components that are the amplitude components of the band signals temporally smoothed using the weighting factors; a suppression calculation part determining a suppression coefficient from the smoothed amplitude component and the estimated noise amplitude component for each band; a noise suppression part suppressing the band signals based on the suppression coefficients; and a frequency synthesis part synthesizing and outputting the band signals of the bands after the noise suppression output from the noise suppression part.

摘要翻译： 噪声抑制器包括将输入信号划分为频带并输出频带信号的分频部分; 振幅计算部，确定所述频带信号的振幅分量; 噪声估计部，估计输入信号中包含的噪声的幅度分量，并确定每个频带的估计噪声振幅分量; 为每个频带产生不同加权系数的加权因子产生部分; 确定作为使用所述加权因子暂时平滑的所述频带信号的幅度分量的平滑幅度分量的振幅平滑部分; 抑制计算部分，根据平滑的振幅分量和每个频带的估计噪声振幅分量确定抑制系数; 基于抑制系数抑制频带信号的噪声抑制部; 以及频率合成部，其合成并输出从噪声抑制部输出的噪声抑制之后的频带的频带信号。

公开(公告)号：US06490554B2

公开(公告)日：2002-12-03

申请号：US10112470

申请日：2002-03-28

申请人： Kaori Endo ,  Yasuji Ota

发明人： Kaori Endo ,  Yasuji Ota

IPC分类号： G10L1102

CPC分类号： G10L25/69 ,  G10L25/78

摘要： The invention relates to a voice activity detecting device and a voice activity detecting method. An object of the invention is to adapt to various characteristics of noise which may possibly be superimposed on an aural signal to thereby reliably discriminate between an active voice segment and a non-active voice segment. For this purpose, the voice activity detecting device comprises: a speech-segment inferring section 11 for determining the probability that each of active voice frames given in order of time sequence belongs to the active voice segment, based on the statistical characteristic of the aural signal; a quality monitoring section 12 for monitoring the quality of the aural signal for each active voice frame, and a speech-segment determining section 13 for weighting the determined probability with the above quality to obtain for each active voice frame the accuracy that the active voice frame belongs to the active voice segment.

摘要翻译： 本发明涉及语音活动检测装置和语音活动检测方法。 本发明的目的是适应可能叠加在听觉信号上的噪声的各种特性，从而可靠地区分有效语音段和非活动语音段。 为此，语音活动检测装置包括：语音段推断部分11，用于基于听觉信号的统计特性来确定按时间顺序给出的每个活动语音帧属于活动语音段的概率 ; 用于监视每个活动语音帧的听觉信号的质量的质量监测部分12以及用于以上述质量对所确定的概率进行加权的语音段确定部分13，以获得每个活动语音帧的有效语音帧 属于主动语音段。

公开(公告)号：US4849345A

公开(公告)日：1989-07-18

申请号：US851207

申请日：1986-04-14

申请人： Yasuhisa Asano ,  Akiko Nakazawa ,  Shiro Terashima ,  Kiyosi Kondo ,  Kaori Endo ,  Kenji Hirai ,  Naganori Numao

发明人： Yasuhisa Asano ,  Akiko Nakazawa ,  Shiro Terashima ,  Kiyosi Kondo ,  Kaori Endo ,  Kenji Hirai ,  Naganori Numao

IPC分类号： C12N9/06 ,  C12P1/00 ,  C12P13/04

CPC分类号： C12N9/0018 ,  C12N9/0028 ,  C12P1/00 ,  C12P13/04 ,  Y10S435/822 ,  Y10S435/832

摘要： New L-phenylalanine dehydrogenases produced by a microorganism belonging to the genus Sporosarcina or Bacillus, new microorganisms capable of l-phenylalanine dehydrogenase and belonging to the genus Sporosarcina or Bacillus, a process for production of L-phenylalanine dehydrogenase using the microorganisms, and processes for production of L-amino acids using the enzymes or the microorganisms.

公开(公告)号：US09070372B2

公开(公告)日：2015-06-30

申请号：US13072992

申请日：2011-03-28

申请人： Kaori Endo ,  Takeshi Otani ,  Hitoshi Sasaki ,  Mitsuyoshi Matsubara ,  Rika Nishiike ,  Kaoru Chujo

发明人： Kaori Endo ,  Takeshi Otani ,  Hitoshi Sasaki ,  Mitsuyoshi Matsubara ,  Rika Nishiike ,  Kaoru Chujo

IPC分类号： G10L19/00 ,  G10L21/00 ,  G10L21/02 ,  G10L21/038 ,  G10L21/0232 ,  G10L21/0208

CPC分类号： G10L21/038 ,  G10L21/02 ,  G10L21/0208 ,  G10L21/0232

摘要： A voice processing apparatus includes a voice signal acquiring unit that acquires a voice signal converted to plural frequency bands from an input signal having a narrowed band; an expanding unit that generates based on a narrowband component of the voice signal acquired by the voice signal acquiring unit, an expansion band component expanding the band of the voice signal; a correcting unit that corrects the power of the expansion band component by a correction amount determined based on a noise component included in the voice signal acquired by the voice signal acquiring unit; and an output unit that outputs the voice signal of which the band has been expanded based on the expansion band component corrected by the correcting unit and based on the narrowband component of the voice signal acquired by the voice signal acquiring unit.

摘要翻译： 语音处理装置包括语音信号获取单元，其从具有变窄频带的输入信号中获取被转换成多个频带的语音信号; 扩展单元，其基于由语音信号获取单元获取的语音信号的窄带分量生成扩展频带分量，扩展语音信号的频带; 校正单元，其通过基于由语音信号获取单元获取的语音信号中包括的噪声分量确定的校正量校正扩展频带分量的功率; 以及输出单元，其基于由所述校正单元校正的所述扩展频带分量，并且基于由所述语音信号获取单元获取的所述语音信号的窄带分量来输出已经扩展了所述频带的语音信号。

公开(公告)号：US08560308B2

公开(公告)日：2013-10-15

申请号：US12382905

申请日：2009-03-26

申请人： Kaori Endo ,  Yasuji Ota ,  Takeshi Otani ,  Taro Togawa

发明人： Kaori Endo ,  Yasuji Ota ,  Takeshi Otani ,  Taro Togawa

IPC分类号： G10L21/02 ,  G10L25/78 ,  G10L15/20

CPC分类号： G10L25/78 ,  G10L15/20 ,  G10L21/0208 ,  G10L21/0264 ,  G10L21/0364 ,  G10L2021/02165 ,  H03G3/32 ,  H04R3/04 ,  H04R2430/03

摘要： A disclosed speech sound enhancement device includes an SNR calculation unit for calculating an SNR which is a ratio of received speech sound to ambient noise; a first-frequency-range enhancement magnitude calculation unit for calculating, based on the SNR and frequency-range division information indicating a first and a second frequency range, enhancement magnitude of the first frequency range, the first frequency range contributing to an improvement of subjective intelligibility of the received speech sound, the second frequency range contributing to an improvement of subjective articulation of the received speech sound; a second-frequency-range enhancement magnitude calculation unit for calculating enhancement magnitude of the second frequency range based on the enhancement magnitude of the first frequency range; and a spectrum processing unit for processing spectra of the received speech sound using the enhancement magnitude of the first frequency range, the enhancement magnitude of the second frequency range and the frequency-range division information.

摘要翻译： 所公开的语音增强装置包括：SNR计算单元，用于计算作为接收到的语音与环境噪声的比率的SNR; 第一频率范围增强量计算单元，用于基于指示第一和第二频率范围的SNR和频率范围分割信息，计算第一频率范围的增强幅度，有助于主观改善的第一频率范围 接收到的语音的可懂度，第二频率范围有助于改善接收到的语音的主观发音; 第二频率范围增强量计算单元，用于基于第一频率范围的增强幅度来计算第二频率范围的增强幅度; 以及频谱处理单元，用于使用第一频率范围的增强幅度，第二频率范围的增强幅度和频率范围分割信息来处理接收到的语音的频谱。

公开(公告)号：US08438035B2

公开(公告)日：2013-05-07

申请号：US11967403

申请日：2007-12-31

申请人： Kaori Endo ,  Yasuji Ota ,  Chikako Matsumoto

发明人： Kaori Endo ,  Yasuji Ota ,  Chikako Matsumoto

IPC分类号： G10L21/02

CPC分类号： G10L25/90 ,  G10L19/005

摘要： When there are missing voice-transmission-signals, a repetition-section calculating unit sets a plurality of repetition sections of different lengths that are determined to be similar to the voice-transmission-signals preceding the missing voice-transmission-signal, the repetition sections being determined with respect to stationary voice-transmission-signals stored in a normal signal storage unit, the stationary voice-transmission-signals being selected from the previously input voice-transmission-signals. A controller generates a concealment signal using the repetition sections.

摘要翻译： 当缺少语音传输信号时，重复部分计算单元设置确定为类似于丢失语音传输信号之前的语音传输信号的不同长度的多个重复部分，重复部分 相对于存储在正常信号存储单元中的固定语音传输信号来确定，所述固定语音传输信号是从先前输入的语音传输信号中选择的。 控制器使用重复部分产生隐藏信号。

公开(公告)号：US08364475B2

公开(公告)日：2013-01-29

申请号：US12631050

申请日：2009-12-04

申请人： Taro Togawa ,  Takeshi Otani ,  Kaori Endo ,  Yasuji Ota

发明人： Taro Togawa ,  Takeshi Otani ,  Kaori Endo ,  Yasuji Ota

IPC分类号： G10L19/12

CPC分类号： G10L21/02 ,  G10L2021/0575

摘要： A voice processing apparatus, which processes a first voice signal, includes: an acoustic analysis part which analyzes a feature quantity of an input second voice signal; a reference range calculation part which calculates a reference range based on the feature quantity; a comparing part which compares the feature quantity and the reference range and outputs a comparison result; and a voice processing part which processes and outputs the input first voice signal based on the comparison result.

摘要翻译： 处理第一语音信号的语音处理装置包括：声学分析部分，分析输入的第二语音信号的特征量; 参考范围计算部，其基于特征量计算基准范围; 比较部分，比较特征量和参考范围，并输出比较结果; 以及语音处理部，其基于比较结果来处理输出所述输入的第一语音信号。