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1. 发明申请

US20110015931A1 PERIODIC SIGNAL PROCESSING METHOD,PERIODIC SIGNAL CONVERSION METHOD,PERIODIC SIGNAL PROCESSING DEVICE, AND PERIODIC SIGNAL ANALYSIS METHOD 有权
标题翻译：周期信号处理方法，周期信号转换方法，周期信号处理装置和周期信号分析方法
公开(公告)号：US20110015931A1
公开(公告)日：2011-01-20
申请号：US12669533
申请日：2008-07-18
申请人： Hideki Kawahara , Masanori Morise , Toru Takahashi , Toshio Irino
发明人： Hideki Kawahara , Masanori Morise , Toru Takahashi , Toshio Irino
IPC分类号： G10L13/00
CPC分类号： G10L21/00 , G10L13/033 , G10L13/04 , G10L25/00 , G10L25/90
摘要： The invention relates to a periodic signal processing method, a periodic signal conversion method, and a periodic signal processing device capable of reducing the influence of periodicity without using a spectral model. Time windows are arranged such that a center of each of the time windows is at a division position which divides a fundamental frequency in a temporal direction into fractions 1/n (where n is an integer equal to or larger than 2) so as to extract a plurality of portions of different ranges from a signal having periodicity. A power spectrum for the plurality of portions extracted by the respective time windows is calculated, and the calculated power spectrum is added with a same ratio.
摘要翻译：本发明涉及周期性信号处理方法，周期信号转换方法以及能够在不使用频谱模型的情况下减少周期影响的周期信号处理装置。时间窗被布置成使得每个时间窗口的中心处于将时间方向上的基本频率划分为分数1 / n（其中n是等于或大于2的整数）的分割位置，以便提取与具有周期性的信号的不同范围的多个部分。计算由各个时间窗口提取的多个部分的功率谱，并且以相同的比率添加所计算的功率谱。

2. 发明授权

US06675140B1 Mellin-transform information extractor for vibration sources 有权
标题翻译：用于振动源的Mellin变换信息提取器
公开(公告)号：US06675140B1
公开(公告)日：2004-01-06
申请号：US09493661
申请日：2000-01-28
申请人： Toshio Irino , Roy D. Patterson
发明人： Toshio Irino , Roy D. Patterson
IPC分类号： G10L2100
CPC分类号： G06F17/14
摘要： The signal processing method includes the steps of: wavelet-transforming an input signal in a computer; and extracting features of the signal by Mellin-transforming the output of the wavelet transform step in synchrony with the input signal in a computer.
摘要翻译：信号处理方法包括以下步骤：对计算机中的输入信号进行小波变换; 以及通过与计算机中的输入信号同步地对小波变换步骤的输出进行Mellin变换来提取信号的特征。

3. 发明授权

US08781819B2 Periodic signal processing method, periodic signal conversion method, periodic signal processing device, and periodic signal analysis method 有权
标题翻译：周期信号处理方法，周期信号转换方法，周期信号处理装置和周期信号分析方法
公开(公告)号：US08781819B2
公开(公告)日：2014-07-15
申请号：US12669533
申请日：2008-07-18
申请人： Hideki Kawahara , Masanori Morise , Toru Takahashi , Toshio Irino
发明人： Hideki Kawahara , Masanori Morise , Toru Takahashi , Toshio Irino
IPC分类号： G10L25/00
CPC分类号： G10L21/00 , G10L13/033 , G10L13/04 , G10L25/00 , G10L25/90
摘要： The invention relates to a periodic signal processing method, a periodic signal conversion method, and a periodic signal processing device capable of reducing the influence of periodicity without using a spectral model. Time windows are arranged such that a center of each of the time windows is at a division position which divides a fundamental frequency in a temporal direction into fractions 1/n (where n is an integer equal to or larger than 2) so as to extract a plurality of portions of different ranges from a signal having periodicity. A power spectrum for the plurality of portions extracted by the respective time windows is calculated, and the calculated power spectrum is added with a same ratio.
摘要翻译：本发明涉及周期性信号处理方法，周期信号转换方法以及能够在不使用频谱模型的情况下减少周期影响的周期信号处理装置。时间窗被布置成使得每个时间窗口的中心处于将时间方向上的基本频率划分为分数1 / n（其中n是等于或大于2的整数）的分割位置，以便提取与具有周期性的信号的不同范围的多个部分。计算由各个时间窗口提取的多个部分的功率谱，并且以相同的比率添加所计算的功率谱。

4. 发明申请

US20080025521A1 Impulse Response Measurement Method and Device 审中-公开
标题翻译：脉冲响应测量方法和装置
公开(公告)号：US20080025521A1
公开(公告)日：2008-01-31
申请号：US11658099
申请日：2005-07-12
申请人： Masanori Morise , Toshio Irino , Hideki Kawahara , Hideki Banno
发明人： Masanori Morise , Toshio Irino , Hideki Kawahara , Hideki Banno
IPC分类号： H04R29/00
CPC分类号： H04R29/00 , G01H3/00 , G01H15/00
摘要： A method, device, system, program and recording medium for impulse response measurement which can improve a measurement accuracy without lowering the S/N ratio over the whole range, from lower frequencies to higher frequencies, of a measuring signal are provided. A signal generation unit (21) of a device for impulse response measurement (10-1) generates a W-TSP signal (x(t)) having characteristics of a TSP signal and a Log-TSP signal. A D/A conversion unit (22) converts the digital signal (x(t)) into an analog signal (x(t)) and outputs the converted signal to a headphone (2) or a speaker (5). An A/D conversion unit (23) inputs an analog signal (y(t)) received by a microphone (3) or a microphone (6) and converts the inputted signal into a digital signal (y(t)). An inverse signal generation unit (24) generates an inverse W-TSP signal (x(t)). A convolution unit (25) convolutes the signal (y(t)) and the inverse W-TSP signal (x−1(t)) thereby to calculate an impulse response (g(t)).
摘要翻译：提供了用于脉冲响应测量的方法，装置，系统，程序和记录介质，其可以在不降低测量信号的低频到更高频率的整个范围上的S / N比的情况下提高测量精度。用于脉冲响应测量（10-1）的装置的信号产生单元（21）产生具有TSP信号和Log-TSP信号特性的W-TSP信号（x（t））。 D / A转换单元（22）将数字信号（x（t））转换为模拟信号（x（t）），并将转换的信号输出到耳机（2）或扬声器（5）。 A / D转换单元（23）输入由麦克风（3）或麦克风（6）接收的模拟信号（y（t）），并将输入的信号转换为数字信号（y（t））。逆信号生成单元（24）生成逆W-TSP信号（x（t））。卷积单元（25）对信号（y（t））和逆W-TSP信号（x ^{-1（t））进行卷积，从而计算脉冲响应（g（t））。}

5. 发明授权

US07085721B1 Method and apparatus for fundamental frequency extraction or detection in speech 有权
标题翻译：语音中基频提取或检测的方法和装置
公开(公告)号：US07085721B1
公开(公告)日：2006-08-01
申请号：US09786642
申请日：2000-07-05
申请人： Hideki Kawahara , Toshio Irino
发明人： Hideki Kawahara , Toshio Irino
IPC分类号： G10L13/00 , G10L19/06
CPC分类号： G10L25/90 , G10L25/18
摘要： An object is to provide a method of extracting sound-source information, which method enables the characteristics of fixed points of mapping from filter center frequency to output instantaneous frequency to be detected from instantaneous data, as a value which can be interpreted quantitatively. In a method of extracting sound-source information by use of fixed points of mapping from frequency to instantaneous frequency, instantaneous frequency of each filter (2), (9) is partial-differentiated with respect to frequency by an instantaneous-frequency frequency differentiation circuit (3), (10) to thereby obtain a first value; output of each filter is partial-differentiated with respect to frequency and then with respect to time by an instantaneous-frequency time-frequency differentiation circuit (4), (11) to thereby obtain a second value; and proper weights are imparted to the first and second values and short-time weighted integration with respect to time is performed by a carrier-to-noise-ratio calculation circuit (5), (12) to estimate a carrier-to-noise ratio of each filter. Thus, a carrier-to-noise ratio is obtained, and an estimated value of evaluation value is obtained.
摘要翻译：本发明的目的是提供一种提取声源信息的方法，该方法使得能够将来自滤波器中心频率的固定点的特征从瞬时数据输出到要检测的瞬时频率，作为可定量解释的值。在通过使用从频率到瞬时频率的映射的固定点提取声源信息的方法中，每个滤波器（2），（9）的瞬时频率相对于频率被瞬时频率频率微分电路部分微分（3），（10），从而获得第一值; 每个滤波器的输出相对于频率偏微分，然后相对于时间由瞬时频率时频微分电路（4），（11）进行偏微分，从而获得第二值; 并且通过载波噪声比计算电路（5），（12）执行相对于时间的适当权重并且相对于时间的短时加权积分来估计载波噪声比的每个过滤器。因此，获得载波噪声比，并且获得评估值的估计值。

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