公开(公告)号：US07596495B2

公开(公告)日：2009-09-29

申请号：US11093672

申请日：2005-03-29

申请人： Michiko Kazama ,  Mikio Tohyama ,  Toru Hirai

发明人： Michiko Kazama ,  Mikio Tohyama ,  Toru Hirai

IPC分类号： G10L21/02 ,  G10L19/02

CPC分类号： G10L21/0208

摘要： A method is provided for recurrently estimating a spectrum of noise at each signal observation interval from a sound signal which contains the noise and which is observed at each signal observation interval. In the method, there are acquired an envelope of a previous spectrum of the noise which has been previously estimated from the sound signal observed at a previous signal observation interval, and an envelope of a current spectrum of the sound signal which is observed at a current signal observation interval subsequent to the previous signal observation interval. Then, a value of correlation is computed between the envelop of the previous spectrum of the noise and the envelope of the current spectrum of the sound signal. A current spectrum of the noise contained in the sound signal observed at the current signal observation interval is estimated in accordance with the computed value of the correlation and based on the previous spectrum of the noise and the current spectrum of the sound signal.

摘要翻译： 提供了一种从包含噪声的声音信号在每个信号观测间隔周期性地估计噪声频谱的方法，并且在每个信号观测间隔处观察到噪声频谱。 在该方法中，获取先前根据在先前的信号观察间隔观察到的声音信号估计出的噪声的先前频谱的包络，以及在当前观察到的声音信号的当前频谱的包络 在先前的信号观察间隔之后的信号观察间隔。 然后，在噪声的先前频谱的包络和声音信号的当前频谱的包络之间计算相关值。 根据相关的计算值，并根据噪声的前一频谱和声音信号的当前频谱，估计在当前信号观测间隔处观察到的声音信号中包含的噪声的当前频谱。

公开(公告)号：US06950513B2

公开(公告)日：2005-09-27

申请号：US10141276

申请日：2002-05-08

申请人： Toru Hirai ,  Yoshikazu Honji ,  Mikio Tohyama ,  Aya Togura

发明人： Toru Hirai ,  Yoshikazu Honji ,  Mikio Tohyama ,  Aya Togura

IPC分类号： H04R3/02 ,  H04B3/23 ,  H04M9/08 ,  H04M1/00 ,  H04M9/00

CPC分类号： H04M9/082

摘要： Two signals, which are mutually correlated, are subjected to a principal component analysis and converted into two signals being put in an orthogonal relation, thereby generating two signals being non-correlated. Those two signals are reproduced by speakers, and the voice generated from the speakers are collected by microphones. The cross spectra of a signal as the result of subtracting an echo canceling signal from a voice collected by each microphone, and a voice before it is generated from the speaker, are obtained. Those cross spectra are ensemble-averaged for a predetermined period of time, and inverse Fourier transformed, thereby producing impulse response estimation errors of each filter. Impulse responses of those filters are updated so as to cancel those impulse response estimation errors.

摘要翻译： 相互相关的两个信号经受主分量分析，并转换成两个正交关系的信号，从而产生两个不相关的信号。 这两个信号由扬声器再现，并且由扬声器产生的声音由麦克风收集。 从扬声器产生作为从每个麦克风收集的语音中减去回声消除信号和从其发出的声音的信号的交叉频谱。 这些交叉频谱在预定时间段内进行整体平均，并进行傅立叶逆变换，从而产生每个滤波器的脉冲响应估计误差。 这些滤波器的脉冲响应被更新，以便消除这些脉冲响应估计误差。

公开(公告)号：US20070258579A1

公开(公告)日：2007-11-08

申请号：US11825301

申请日：2007-07-05

申请人： Toru Hirai ,  Mikio Tohyama ,  Hiraku Okumura ,  Yoshikazu Honji ,  Hiroshi Iriyama ,  Koji Niimi

发明人： Toru Hirai ,  Mikio Tohyama ,  Hiraku Okumura ,  Yoshikazu Honji ,  Hiroshi Iriyama ,  Koji Niimi

IPC分类号： H04M9/08

CPC分类号： H04R3/02 ,  H04M9/082

摘要： Stereo sound signals are reproduced directly from loudspeakers (SP(L), SP(R)). By using a sum signal and a difference signal of the stereo sound signals as a reference signal, and according to a cross spectrum calculation of the reference signal with a microphone-collected sound signal, calculation is performed to obtain transfer functions of four sound transfer systems between the loudspeakers (SP(L), SP(R)) and microphones (MC(L), MC(R)). The transfer functions obtained are subjected to inverse Fourier transform to obtain impulse responses, which are set in filter means (40-1 to 40-4) to create echo cancel signals and perform echo canceling. This solves the problem of an indefinite coefficient in the echo cancel technique of a multi-channel sound signal.

摘要翻译： 立体声信号直接从扬声器（SP（L），SP（R））再现。 通过使用立体声信号的和信号和差分信号作为参考信号，并且根据具有麦克风收集的声音信号的参考信号的交叉频谱计算，执行计算以获得四个声音传送系统的传递函数 扬声器（SP（L），SP（R））和麦克风（MC（L），MC（R））之间。 所获得的传递函数进行傅里叶逆变换以获得脉冲响应，其被设置在滤波器装置（40-1至40-4）中以产生回波消除信号并执行回波消除。 这解决了多声道声音信号的回波消除技术中不确定系数的问题。

公开(公告)号：US20070258578A1

公开(公告)日：2007-11-08

申请号：US11825270

申请日：2007-07-05

申请人： Toru Hirai ,  Mikio Tohyama ,  Hiraku Okumura ,  Yoshikazu Honji ,  Hiroshi Iriyama ,  Koji Niimi

发明人： Toru Hirai ,  Mikio Tohyama ,  Hiraku Okumura ,  Yoshikazu Honji ,  Hiroshi Iriyama ,  Koji Niimi

IPC分类号： H04M9/08

CPC分类号： H04R3/02 ,  H04M9/082

摘要： Stereo sound signals are reproduced directly from loudspeakers (SP(L), SP(R)). By using a sum signal and a difference signal of the stereo sound signals as a reference signal, and according to a cross spectrum calculation of the reference signal with a microphone-collected sound signal, calculation is performed to obtain transfer functions of four sound transfer systems between the loudspeakers (SP(L), SP(R)) and microphones (MC(L), MC(R)). The transfer functions obtained are subjected to inverse Fourier transform to obtain impulse responses, which are set in filter means (40-1 to 40-4) to create echo cancel signals and perform echo canceling. This solves the problem of an indefinite coefficient in the echo cancel technique of a multi-channel sound signal.

公开(公告)号：US20060012469A1

公开(公告)日：2006-01-19

申请号：US11178604

申请日：2005-07-12

申请人： Toru Hirai

发明人： Toru Hirai

IPC分类号： B60C23/00 ,  G08B21/00

CPC分类号： B60C23/0416 ,  B60C23/061

摘要： A tire air pressure monitoring system is provided that comprises a transmitting device, a receiving device, and a tire identification number registration device. The transmitting device is mounted on a wheel of a vehicle, and configured and arranged to wirelessly transmit a signal indicative of at least tire air pressure information of a tire coupled to the wheel and a tire identification number assigned to the wheel. The receiving device is mounted on the vehicle, and configured and arranged to receive the signal transmitted from the transmitting device. The tire identification number registration device is configured to estimate a position of the wheel with respect to the vehicle based on correlation information corresponding to an extent of a correlation between strength of the signal and a tire rotational angle of the wheel, and to register the tire identification number with the position of the wheel.

摘要翻译： 提供了一种轮胎气压监测系统，其包括发送装置，接收装置和轮胎识别号码登记装置。 发送装置安装在车辆的车轮上，并且被构造和布置成无线地传送指示至少轮胎联接到轮胎的轮胎气压信息的信号和分配给车轮的轮胎识别号码。 接收装置安装在车辆上，并且被配置和布置成接收从发送装置发送的信号。 轮胎识别号登记装置被配置为基于与信号的强度和车轮的轮胎旋转角度之间的相关程度相对应的相关信息来估计车轮相对于车辆的位置，并且将轮胎 识别号码与车轮的位置。

公开(公告)号：US20050220292A1

公开(公告)日：2005-10-06

申请号：US11093800

申请日：2005-03-30

申请人： Hiraku Okumura ,  Toru Hirai

发明人： Hiraku Okumura ,  Toru Hirai

IPC分类号： H04M1/60 ,  G10K11/175 ,  H04B3/23 ,  H04M1/20 ,  H04M9/08

CPC分类号： H04M9/082

摘要： An apparatus is designed for processing a first audio signal at transmission and a second audio signal upon receipt so as to determine whether the second audio signal is provided under a double-talk state or a single-talk state. In the apparatus, a storage section stores the first audio signal. A convolution section convolutes the stored first audio signal with a variable coefficient to produce a reference signal. The variable coefficient is updated by an update addition value. A subtraction section subtracts the reference signal from the second audio signal to provide an error signal. A computation section computes the update addition value for the variable coefficient on the basis of the error signal and the first audio signal. A determination section determines whether the second audio signal is provided under the double-talk state or the single-talk state on the basis of the update addition value.

摘要翻译： 设计用于在传输时处理第一音频信号和在接收时处理第二音频信号，以便确定第二音频信号是在双方通话状态还是单通话状态下提供。 在该装置中，存储部存储第一音频信号。 卷积部分将所存储的第一音频信号与可变系数进行卷积以产生参考信号。 可变系数由更新加法值更新。 减法部分从第二音频信号中减去参考信号以提供误差信号。 计算部根据误差信号和第一音频信号计算可变系数的更新相加值。 确定部分基于更新相加值确定在双方通话状态或单通话状态下是否提供第二音频信号。

公开(公告)号：US5001118A

公开(公告)日：1991-03-19

申请号：US131399

申请日：1987-12-10

申请人： Yuji Maeda ,  Hideyuki Yamato ,  Toru Hirai ,  Masanori Ikuzawa ,  Mikio Matsuki ,  Masanori Togawa ,  Eiji Inoguchi ,  Sinji Nakajima ,  Tadaaki Kato ,  Chikao Yoshikumi

发明人： Yuji Maeda ,  Hideyuki Yamato ,  Toru Hirai ,  Masanori Ikuzawa ,  Mikio Matsuki ,  Masanori Togawa ,  Eiji Inoguchi ,  Sinji Nakajima ,  Tadaaki Kato ,  Chikao Yoshikumi

IPC分类号： A61K31/59

CPC分类号： A61K31/59

摘要： Disclosed herein is a method for preventing senescence and increasing bone mass namely, bone volume and bone strength which method comprises administering 24,25-dihydroxy cholecalciferol in a pharmaceutically effective amount, and also use of 24,25-dihydroxy cholecalciferol for preparing anti-senescent compositions and compositions for increasing bone mass.

公开(公告)号：US07925006B2

公开(公告)日：2011-04-12

申请号：US11825270

申请日：2007-07-05

申请人： Toru Hirai ,  Mikio Tohyama ,  Hiraku Okumura ,  Yoshikazu Honji ,  Hiroshi Iriyama ,  Koji Niimi

发明人： Toru Hirai ,  Mikio Tohyama ,  Hiraku Okumura ,  Yoshikazu Honji ,  Hiroshi Iriyama ,  Koji Niimi

IPC分类号： H04M9/08

CPC分类号： H04R3/02 ,  H04M9/082

摘要： Stereo sound signals are reproduced directly from loudspeakers (SP(L), SP(R)). By using a sum signal and a difference signal of the stereo sound signals as a reference signal, and according to a cross spectrum calculation of the reference signal with a microphone-collected sound signal, calculation is performed to obtain transfer functions of four sound transfer systems between the loudspeakers (SP(L), SP(R)) and microphones (MC(L), MC(R)). The transfer functions obtained are subjected to inverse Fourier transform to obtain impulse responses, which are set in filter means (40-1 to 40-4) to create echo cancel signals and perform echo canceling. This solves the problem of an indefinite coefficient in the echo cancel technique of a multi-channel sound signal.

摘要翻译： 立体声信号直接从扬声器（SP（L），SP（R））再现。 通过使用立体声信号的和信号和差分信号作为参考信号，并且根据具有麦克风收集的声音信号的参考信号的交叉频谱计算，执行计算以获得四个声音传送系统的传递函数 扬声器（SP（L），SP（R））和麦克风（MC（L），MC（R））之间。 所获得的传递函数进行傅里叶逆变换以获得脉冲响应，其被设置在滤波器装置（40-1至40-4）中以产生回波消除信号并执行回波消除。 这解决了多声道声音信号的回波消除技术中不确定系数的问题。

公开(公告)号：US20050256705A1

公开(公告)日：2005-11-17

申请号：US11093672

申请日：2005-03-29

申请人： Michiko Kazama ,  Mikio Tohyama ,  Toru Hirai

发明人： Michiko Kazama ,  Mikio Tohyama ,  Toru Hirai

IPC分类号： G10L15/20 ,  G01R23/16 ,  G01R29/26 ,  G10L11/00 ,  G10L21/02 ,  H04B1/10

CPC分类号： G10L21/0208

摘要： A method is provided for recurrently estimating a spectrum of noise at each signal observation interval from a sound signal which contains the noise and which is observed at each signal observation interval. In the method, there are acquired an envelope of a previous spectrum of the noise which has been previously estimated from the sound signal observed at a previous signal observation interval, and an envelope of a current spectrum of the sound signal which is observed at a current signal observation interval subsequent to the previous signal observation interval. Then, a value of correlation is computed between the envelop of the previous spectrum of the noise and the envelope of the current spectrum of the sound signal. A current spectrum of the noise contained in the sound signal observed at the current signal observation interval is estimated in accordance with the computed value of the correlation and based on the previous spectrum of the noise and the current spectrum of the sound signal.

摘要翻译： 提供了一种从包含噪声的声音信号在每个信号观测间隔周期性地估计噪声频谱的方法，并且在每个信号观测间隔处观察到噪声频谱。 在该方法中，获取先前根据在先前的信号观察间隔观察到的声音信号估计出的噪声的先前频谱的包络，以及在当前观察到的声音信号的当前频谱的包络 在先前的信号观察间隔之后的信号观察间隔。 然后，在噪声的先前频谱的包络和声音信号的当前频谱的包络之间计算相关值。 根据相关的计算值，并根据噪声的前一频谱和声音信号的当前频谱，估计在当前信号观测间隔处观察到的声音信号中包含的噪声的当前频谱。

公开(公告)号：US4294677A

公开(公告)日：1981-10-13

申请号：US74826

申请日：1979-09-12

申请人： Teruo Sakagami ,  Tadaaki Kato ,  Toru Hirai ,  Naohiro Murayama

发明人： Teruo Sakagami ,  Tadaaki Kato ,  Toru Hirai ,  Naohiro Murayama

IPC分类号： C25D13/04 ,  C25B1/12 ,  C25B7/00 ,  C25D1/18 ,  C25D1/20

CPC分类号： C25B7/00 ,  Y02E60/366

摘要： A method for electrodepositing a protein by electrophoresis onto an ion-exchange membrane from a liquid in which the protein is dissolved or is dispersed in suspension, and an apparatus for the electrodepositing are disclosed.

摘要翻译： 通过电泳将蛋白质电解沉积在离子交换膜上，从蛋白质溶解或分散在悬浮液中的液体以及电沉积装置的方法。