公开(公告)号：US07693712B2

公开(公告)日：2010-04-06

申请号：US11389286

申请日：2006-03-27

申请人： Michel Gaeta ,  Abderrahman Essebbar

发明人： Michel Gaeta ,  Abderrahman Essebbar

IPC分类号： G10L21/02 ,  G10L15/20

CPC分类号： G10L21/0208 ,  G10L2021/02165

摘要： A pre-processing system of a signal of interest in an automatic speech recognition system in a vehicle, includes an acoustic sensor to sense the signal of interest, a non acoustic sensor to sense a non acoustic noise signal, a pre-processing unit of the signal of interest, comprising a processing section of coherent frequency bands signals for suppressing the noise from the received signal, a processing section of non coherent frequency bands signals, comprising transfer function estimation device of a signal through the vehicle cabin, and a methods selection section for determining the coherence properties of the received signal, and for selecting the processing section of coherent frequency bands signals or the processing section of non coherent frequency bands signals depending on the result of the properties of the received signal.

摘要翻译： 车辆中的自动语音识别系统中感兴趣的信号的预处理系统包括用于感测感兴趣的信号的声学传感器，用于感测非声学噪声信号的非声学传感器，用于检测非声学噪声信号的预处理单元 信号，包括用于抑制来自接收信号的噪声的相干频带信号的处理部分，包括通过车厢的信号的传递函数估计装置的非相干频带信号的处理部分和方法选择部分 用于确定接收信号的相干属性，并且用于根据接收信号的性质的结果来选择相干频带信号的处理部分或非相干频带信号的处理部分。

公开(公告)号：US07817756B2

公开(公告)日：2010-10-19

申请号：US11723675

申请日：2007-03-21

申请人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

发明人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

IPC分类号： H04B1/10

CPC分类号： H04B1/123 ,  H03H17/0294 ,  H03H17/06 ,  H03H2017/0247 ,  H03H2021/007 ,  H03H2021/0074 ,  H03H2218/04 ,  H04L27/06 ,  H04L27/14

摘要： A circuit and method for suppressing interference components in a received signal are provided. The circuit includes an adaptive filter configured to process a first quantity of digital signal samples per unit time when the adaptive filter is operating in a first mode, and a second quantity of digital signal samples per unit time when operating in a second mode, wherein the first quantity is less than the second quantity. The method includes implementing an adaptive filter configured to operate in an adaptive mode and in a second mode having a reduced adaptability compared to the adaptive mode; operating the adaptive filter in the adaptive mode to process a first quantity of digital signal samples per unit time; and operating the adaptive filter in the second mode to process a second quantity of digital signal samples per unit time; wherein the first quantity is less than the second quantity.

摘要翻译： 提供一种用于抑制接收信号中的干扰成分的电路和方法。 该电路包括自适应滤波器，其被配置为当自适应滤波器以第一模式操作时处理每单位时间的第一数量的数字信号样本，以及当以第二模式操作时，每单位时间的第二数量的数字信号样本，其中 第一数量小于第二数量。 该方法包括实现自适应滤波器，其被配置为以与自适应模式相比具有降低的适应性的自适应模式和第二模式操作; 在自适应模式下操作自适应滤波器以处理每单位时间的第一数量的数字信号样本; 以及在所述第二模式中操作所述自适应滤波器以处理每单位时间的第二数量的数字信号样本; 其中所述第一数量小于所述第二数量。

公开(公告)号：US20080013657A1

公开(公告)日：2008-01-17

申请号：US11723675

申请日：2007-03-21

申请人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

发明人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

IPC分类号： H04B1/10 ,  H03D1/24

CPC分类号： H04B1/123 ,  H03H17/0294 ,  H03H17/06 ,  H03H2017/0247 ,  H03H2021/007 ,  H03H2021/0074 ,  H03H2218/04 ,  H04L27/06 ,  H04L27/14

摘要： A circuit and method for suppressing interference components in a received signal are provided. The circuit includes an adaptive filter configured to process a first quantity of digital signal samples per unit time when the adaptive filter is operating in a first mode, and a second quantity of digital signal samples per unit time when operating in a second mode, wherein the first quantity is less than the second quantity. The method includes implementing an adaptive filter configured to operate in an adaptive mode and in a second mode having a reduced adaptability compared to the adaptive mode; operating the adaptive filter in the adaptive mode to process a first quantity of digital signal samples per unit time; and operating the adaptive filter in the second mode to process a second quantity of digital signal samples per unit time; wherein the first quantity is less than the second quantity.

摘要翻译： 提供一种用于抑制接收信号中的干扰成分的电路和方法。 该电路包括自适应滤波器，其被配置为当自适应滤波器以第一模式操作时处理每单位时间的第一数量的数字信号样本，以及当以第二模式操作时，每单位时间的第二数量的数字信号样本，其中 第一数量小于第二数量。 该方法包括实现自适应滤波器，其被配置为以与自适应模式相比具有降低的适应性的自适应模式和第二模式操作; 在自适应模式下操作自适应滤波器以处理每单位时间的第一数量的数字信号样本; 以及在所述第二模式中操作所述自适应滤波器以处理每单位时间的第二数量的数字信号样本; 其中所述第一数量小于所述第二数量。

公开(公告)号：US20060217977A1

公开(公告)日：2006-09-28

申请号：US11389286

申请日：2006-03-27

申请人： Michel Gaeta ,  Abderrahman Essebbar

发明人： Michel Gaeta ,  Abderrahman Essebbar

IPC分类号： G10L15/20

CPC分类号： G10L21/0208 ,  G10L2021/02165

摘要： A pre-processing system of a signal of interest in an automatic speech recognition system in a vehicle, includes an acoustic sensor to sense the signal of interest, a non acoustic sensor to sense a non acoustic noise signal, a pre-processing unit of the signal of interest, comprising a processing section of coherent frequency bands signals for suppressing the noise from the received signal, a processing section of non coherent frequency bands signals, comprising transfer function estimation device of a signal through the vehicle cabin, and a methods selection section for determining the coherence properties of the received signal, and for selecting the processing section of coherent frequency bands signals or the processing section of non coherent frequency bands signals depending on the result of the properties of the received signal.

摘要翻译： 车辆中的自动语音识别系统中感兴趣的信号的预处理系统包括用于感测感兴趣的信号的声学传感器，用于感测非声学噪声信号的非声学传感器，用于检测非声学噪声信号的预处理单元 信号，包括用于抑制来自接收信号的噪声的相干频带信号的处理部分，包括通过车厢的信号的传递函数估计装置的非相干频带信号的处理部分和方法选择部分 用于确定接收信号的相干属性，并且用于根据接收信号的性质的结果来选择相干频带信号的处理部分或非相干频带信号的处理部分。

公开(公告)号：US06704703B2

公开(公告)日：2004-03-09

申请号：US09775458

申请日：2001-02-02

申请人： Mohand Ferhaoul ,  Jean-Francois Rasaminjanahary ,  Stefaan Van Gerven ,  Abderrahman Essebbar

发明人： Mohand Ferhaoul ,  Jean-Francois Rasaminjanahary ,  Stefaan Van Gerven ,  Abderrahman Essebbar

IPC分类号： G10L1912

CPC分类号： G10L19/12

摘要： The excitation in a CELP-like speech coder is recursively calculated. For a given bitrate and a given complexity, the recursive approach described lowers the complexity with minimum impact on speech quality. The excitation signal is a sum of at least three vector terms, each vector term being a product of a codebook vector zk and an associated gain term gk. A first vector term g0z0 is determined that is representative of a target excitation vector x. Each remaining vector term is recursively determined as a vector term gkzk representative of the difference between the target excitation vector x and the sum of previously determined vector terms, ∑ i = 0 k - 1 ⁢ g i ⁢ z i .

摘要翻译： CELP型语音编码器中的激励被递归计算。 对于给定的比特率和给定的复杂度，所描述的递归方法降低了对语音质量的最小影响的复杂性。 激励信号是至少三个矢量项的和，每个矢量项是码本向量zk和相关联的增益项gk的乘积。 确定代表目标激励矢量x的第一矢量项g0z0。 每个剩余的矢量项被递归地确定为表示目标激励矢量x与先前确定的向量项的和之间的差的向量项gkzk，

公开(公告)号：US08238497B2

公开(公告)日：2012-08-07

申请号：US13255764

申请日：2010-03-11

申请人： Abderrahman Essebbar

发明人： Abderrahman Essebbar

IPC分类号： H04B1/10 ,  H03D1/06

CPC分类号： H04B1/1027 ,  H04B17/345

摘要： A device (1) for reducing the interference in a received communication signal. The device includes: an adaptive filter (2) which uses a self-reference signal to remove a coherent and stable interfering signal from the received communication signal; a detection module (3) for detecting the existence of the target signal among the received communication signals; and a demodulation module (7) for demodulating the received communication signal when the target signal is detected. Further, this device includes: a noise-classifying device (5) which detects various interfering signals of the received communication signal and determines the classification of the detected interfering signals; and a switching module (6) for selecting the input signal for the demodulation module on the basis of the determination made by the noise-classifying device and the value when the existence of the target signal is detected.

摘要翻译： 一种用于减少接收到的通信信号中的干扰的装置（1）。 该装置包括：自适应滤波器（2），其使用自参考信号从接收到的通信信号中去除相干和稳定的干扰信号; 检测模块（3），用于检测所接收的通信信号中目标信号的存在; 以及解调模块（7），用于在检测到目标信号时解调所接收的通信信号。 此外，该装置包括：噪声分类装置（5），其检测所接收的通信信号的各种干扰信号，并确定检测到的干扰信号的分类; 以及用于基于由噪声分类装置进行的确定和当检测到目标信号的存在时的值来选择用于解调模块的输入信号的切换模块（6）。

公开(公告)号：US20120027142A1

公开(公告)日：2012-02-02

申请号：US13255764

申请日：2010-03-11

申请人： Abderrahman Essebbar

发明人： Abderrahman Essebbar

IPC分类号： H04B1/10

CPC分类号： H04B1/1027 ,  H04B17/345

摘要： A device (1) for reducing the interference in a received communication signal. The device includes: an adaptive filter (2) which uses a self-reference signal to remove a coherent and stable interfering signal from the received communication signal; a detection module (3) for detecting the existence of the target signal among the received communication signals; and a demodulation module (7) for demodulating the received communication signal when the target signal is detected. Further, this device includes: a noise-classifying device (5) which detects various interfering signals of the received communication signal and determines the classification of the detected interfering signals; and a switching module (6) for selecting the input signal for the demodulation module on the basis of the determination made by the noise-classifying device and the value when the existence of the target signal is detected.

摘要翻译： 一种用于减少接收到的通信信号中的干扰的装置（1）。 该装置包括：自适应滤波器（2），其使用自参考信号从接收到的通信信号中去除相干和稳定的干扰信号; 检测模块（3），用于检测所接收的通信信号中目标信号的存在; 以及解调模块（7），用于在检测到目标信号时解调所接收的通信信号。 此外，该装置包括：噪声分类装置（5），其检测所接收的通信信号的各种干扰信号，并确定检测到的干扰信号的分类; 以及用于基于由噪声分类装置进行的确定和当检测到目标信号的存在时的值来选择用于解调模块的输入信号的切换模块（6）。