DEREVERBERATION APPARATUS, DEREVERBERATION METHOD, DEREVERBERATION PROGRAM, AND RECORDING MEDIUM
    3.
    发明申请
    DEREVERBERATION APPARATUS, DEREVERBERATION METHOD, DEREVERBERATION PROGRAM, AND RECORDING MEDIUM 有权
    DEREVERBERATION装置,DEREVERBERATION方法,DEREVERBERATION程序和记录介质

    公开(公告)号:US20110002473A1

    公开(公告)日:2011-01-06

    申请号:US12919694

    申请日:2009-02-27

    IPC分类号: H04B3/20

    CPC分类号: G10L2021/02082

    摘要: A sound source model storage section stores a sound source model that represents an audio signal emitted from a sound source in the form of a probability density function. An observation signal, which is obtained by collecting the audio signal, is converted into a plurality of frequency-specific observation signals each corresponding to one of a plurality of frequency bands. Then, a dereverberation filter corresponding to each frequency band is estimated by using the frequency-specific observation signal for the frequency band on the basis of the sound source model and a reverberation model that represents a relationship for each frequency band among the audio signal, the observation signal and the dereverberation filter. A frequency-specific target signal corresponding to each frequency band is determined by applying the dereverberation filter for the frequency band to the frequency-specific observation signal for the frequency band, and the resulting frequency-specific target signals are integrated.

    摘要翻译: 声源模型存储部存储以概率密度函数的形式表示从声源发出的音频信号的声源模型。 通过收集音频信号而获得的观测信号被转换为多个频率特定的观测信号,每个频率特定的观测信号对应于多个频带之一。 然后,通过使用基于声源模型的频带的频率特定观察信号和表示音频信号中的每个频带的关系的混响模型来估计与每个频带相对应的混响滤波器, 观察信号和混响滤波器。 通过对频带应用频带的混响除复用滤波器来确定对应于每个频带的频率特定目标信号,并将所得到的频率特定目标信号进行积分。

    Dereverberation apparatus, dereverberation method, dereverberation program, and recording medium
    4.
    发明授权
    Dereverberation apparatus, dereverberation method, dereverberation program, and recording medium 有权
    去混频装置,混响方式,混响程序和记录介质

    公开(公告)号:US08467538B2

    公开(公告)日:2013-06-18

    申请号:US12919694

    申请日:2009-02-27

    IPC分类号: H04B3/20

    CPC分类号: G10L2021/02082

    摘要: A sound source model storage section stores a sound source model that represents an audio signal emitted from a sound source in the form of a probability density function. An observation signal, which is obtained by collecting the audio signal, is converted into a plurality of frequency-specific observation signals each corresponding to one of a plurality of frequency bands. Then, a dereverberation filter corresponding to each frequency band is estimated by using the frequency-specific observation signal for the frequency band on the basis of the sound source model and a reverberation model that represents a relationship for each frequency band among the audio signal, the observation signal and the dereverberation filter. A frequency-specific target signal corresponding to each frequency band is determined by applying the dereverberation filter for the frequency band to the frequency-specific observation signal for the frequency band, and the resulting frequency-specific target signals are integrated.

    摘要翻译: 声源模型存储部存储以概率密度函数的形式表示从声源发出的音频信号的声源模型。 通过收集音频信号而获得的观测信号被转换为多个频率特定的观测信号,每个频率特定的观测信号对应于多个频带之一。 然后,通过使用基于声源模型的频带的频率特定观察信号和表示音频信号中的每个频带的关系的混响模型来估计与每个频带相对应的混响滤波器, 观察信号和混响滤波器。 通过对频带应用频带的混响除复用滤波器来确定对应于每个频带的频率特定目标信号,并将所得到的频率特定目标信号进行积分。

    SIGNAL ENHANCEMENT DEVICE, METHOD THEREOF, PROGRAM, AND RECORDING MEDIUM
    5.
    发明申请
    SIGNAL ENHANCEMENT DEVICE, METHOD THEREOF, PROGRAM, AND RECORDING MEDIUM 有权
    信号增强器件,其方法,程序和记录介质

    公开(公告)号:US20110044462A1

    公开(公告)日:2011-02-24

    申请号:US12920222

    申请日:2009-03-05

    IPC分类号: H04B3/20

    CPC分类号: G10L2021/02082

    摘要: The initial values of parameter estimates are set, including reverberation parameter estimates, which includes a regression coefficient used in a linear convolutional operation for calculating an estimated value of reverberation included in an observed signal, source parameter estimates, which includes estimated values of a linear prediction coefficient and a prediction residual power that identify the power spectrum of a source signal, and noise parameter estimates, which include noise power spectrum estimates. Then, the maximum likelihood estimation is used to alternately repeat processing for updating at least one of the reverberation parameter estimates and the noise parameter estimates and processing for updating the source parameter estimates until a predetermined termination condition is satisfied.

    摘要翻译: 设置参数估计的初始值,包括混响参数估计,其包括在线性卷积运算中使用的回归系数,用于计算包括在观察信号中的混响的估计值,源参数估计,其包括线性预测的估计值 系数和识别源信号的功率谱的预测剩余功率,以及包括噪声功率谱估计的噪声参数估计。 然后,使用最大似然估计来交替地重复用于更新混响参数估计和噪声参数估计中的至少一个的处理,以及用于更新源参数估计的处理,直到满足预定的终止条件。

    Fluorinated urethane compounds and compositions containing the same
    6.
    发明申请
    Fluorinated urethane compounds and compositions containing the same 有权
    氟化氨基甲酸酯化合物和含有它们的组合物

    公开(公告)号:US20060091351A1

    公开(公告)日:2006-05-04

    申请号:US10523518

    申请日:2003-08-05

    IPC分类号: D06M15/263 C07C271/20

    摘要: A fluorine-containing urethane compound of the general formula: [Rf-A1-(X1(OH))—(Y1)a—OC(═O)NH—]m I [—NHC(═O)O—Y2]n[—NHC(═O)O—((ClCH2—)X2O)b—R1]k   (1) wherein I is a group remaining after an isocyanate group is removed from a polyisocyanate compound, Rf is a perfluoroalkyl group having 2 to 21 carbon atoms, A1 is a direct bond or a divalent organic group having 1 to 21 carbon atoms, X1 and X2 are trivalent linear or branched aliphatic group having 2 to 5 carbon atoms, Y1 is a divalent organic group having 0 to 5 carbon atoms and 0 to 2 nitrogen atoms (provided that at least one carbon atom or nitrogen atom is present) and at least one hydrogen atom, Y2 is a monovalent organic group optionally having a hydroxyl group, and R1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, can impart high water- and oil-repellency.

    摘要翻译: 具有以下通式的含氟氨基甲酸酯化合物:<?in-line-formula description =“In-line formula”end =“lead”?> [Rf-A 1 - (X “end =”tail“?>其中I是在从异氰酸酯化合物除去异氰酸酯基后残留的基团,Rf是具有2至21个碳原子的全氟烷基,A 1是直接键 或具有1至21个碳原子的二价有机基团,X 1和X 2是具有2至5个碳原子的三价直链或支链脂族基团,Y 1 是具有0至5个碳原子和0至2个氮原子的二价有机基团(条件是存在至少一个碳原子或氮原子)和至少一个氢原子,Y 2 O >是一价有机g 任选具有羟基的醇,R 1是氢原子或具有1-10个碳原子的烷基,可以赋予高斥水斥油性。

    Signal enhancement device, method thereof, program, and recording medium
    7.
    发明授权
    Signal enhancement device, method thereof, program, and recording medium 有权
    信号增强装置,方法,程序和记录介质

    公开(公告)号:US08848933B2

    公开(公告)日:2014-09-30

    申请号:US12920222

    申请日:2009-03-05

    IPC分类号: H04B3/20

    CPC分类号: G10L2021/02082

    摘要: The initial values of parameter estimates are set, including reverberation parameter estimates, which includes a regression coefficient used in a linear convolutional operation for calculating an estimated value of reverberation included in an observed signal, source parameter estimates, which includes estimated values of a linear prediction coefficient and a prediction residual power that identify the power spectrum of a source signal, and noise parameter estimates, which include noise power spectrum estimates. Then, the maximum likelihood estimation is used to alternately repeat processing for updating at least one of the reverberation parameter estimates and the noise parameter estimates and processing for updating the source parameter estimates until a predetermined termination condition is satisfied.

    摘要翻译: 设置参数估计的初始值,包括混响参数估计,其包括在线性卷积运算中使用的回归系数,用于计算包括在观察信号中的混响的估计值,源参数估计,其包括线性预测的估计值 系数和识别源信号的功率谱的预测剩余功率,以及包括噪声功率谱估计的噪声参数估计。 然后,使用最大似然估计来交替地重复用于更新混响参数估计和噪声参数估计中的至少一个的处理,以及用于更新源参数估计的处理,直到满足预定的终止条件。

    Signal distortion elimination apparatus, method, program, and recording medium having the program recorded thereon
    8.
    发明授权
    Signal distortion elimination apparatus, method, program, and recording medium having the program recorded thereon 有权
    信号失真消除装置,方法,程序和记录有程序的记录介质

    公开(公告)号:US08494845B2

    公开(公告)日:2013-07-23

    申请号:US11913241

    申请日:2007-02-16

    CPC分类号: G10L2021/02082

    摘要: Provided is a signal distortion elimination apparatus comprising: an inverse filter application means that outputs the signal obtained by applying an inverse filter to an observed signal as a restored signal when a predetermined iteration termination condition is met and outputs the signal obtained by applying the inverse filter to the observed signal as an ad-hoc signal when the predetermined iteration termination condition is not met; a prediction error filter calculation means that segments the ad-hoc signal into frames and outputs a prediction error filter of each frame obtained by performing linear prediction analysis of the ad-hoc signal of each frame; an inverse filter calculation means that calculates an inverse filter such that a concatenation of innovation estimates of the respective frames becomes mutually independent among their samples, where the innovation estimate of a single frame (an innovation estimate) is the signal obtained by applying the prediction error filter of the corresponding frame to the ad-hoc signal of the corresponding frame, and outputs the inverse filter; and a control means that iteratively executes the inverse filter application means, the prediction error filter calculation means and the inverse filter calculation means until the iteration termination condition is met.

    摘要翻译: 提供了一种信号失真消除装置,包括:逆滤波器应用装置,当满足预定的迭代终止条件时,将通过对观测信号应用反相滤波器获得的信号作为恢复信号输出,并输出通过应用逆滤波器获得的信号 当不满足预定的迭代终止条件时,将观测信号作为ad-hoc信号; 预测误差滤波器计算装置,将所述自组织信号分割为帧,并输出通过对每帧的自组织信号进行线性预测分析获得的每帧的预测误差滤波器; 反向滤波器计算意味着计算逆滤波器,使得各帧的创新估计的级联在其样本之间变得相互独立,其中单个帧(创新估计)的创新估计是通过应用预测误差获得的信号 对相应帧的ad-hoc信号进行相应帧的滤波,并输出逆滤波器; 以及在满足迭代终止条件之前,迭代地执行逆滤波器应用装置,预测误差滤波器计算装置和逆滤波器计算装置的控制装置。

    Fluorinated urethane compounds and compositions containing the same
    9.
    发明授权
    Fluorinated urethane compounds and compositions containing the same 有权
    氟化氨基甲酸酯化合物和含有它们的组合物

    公开(公告)号:US07388104B2

    公开(公告)日:2008-06-17

    申请号:US10523518

    申请日:2003-08-05

    IPC分类号: C07C271/00 D06M15/19

    摘要: A fluorine-containing urethane compound of the general formula: [Rf-A1-(X1(OH))—(Y1)a—OC(═O)NH—]mI[—NHC(═O)O—Y2]n[—NHC(═O)O—((ClCH2—)X2O)b—R1]k   (1) wherein I is a group remaining after an isocyanate group is removed from a polyisocyanate compound, Rf is a perfluoroalkyl group having 2 to 21 carbon atoms, A1 is a direct bond or a divalent organic group having 1 to 21 carbon atoms, X1 and X2 are trivalent linear or branched aliphatic group having 2 to 5 carbon atoms, Y1 is a divalent organic group having 0 to 5 carbon atoms and 0 to 2 nitrogen atoms (provided that at least one carbon atom or nitrogen atom is present) and at least one hydrogen atom, Y2 is a monovalent organic group optionally having a hydroxyl group, and R1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, can impart high water- and oil-repellency.

    摘要翻译: 具有以下通式的含氟氨基甲酸酯化合物:<?in-line-formula description =“In-line formula”end =“lead”?> [Rf-A 1 - (X “end =”tail“?>其中I是在从异氰酸酯化合物除去异氰酸酯基后残留的基团,Rf是具有2至21个碳原子的全氟烷基,A 1是直接键 或具有1至21个碳原子的二价有机基团,X 1和X 2是具有2至5个碳原子的三价直链或支链脂族基团,Y 1 是具有0至5个碳原子和0至2个氮原子的二价有机基团(条件是存在至少一个碳原子或氮原子)和至少一个氢原子,Y 2 O >是一种单价有机基团o 具有羟基,R 1是氢原子或具有1-10个碳原子的烷基,可以赋予高斥水斥油性。