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51.发明授权System for processing microphone signals to provide an output signal with reduced interference 有权用于处理麦克风信号的系统，以提供具有减小的干扰的输出信号公开(公告)号：US08189810B2
公开(公告)日：2012-05-29
申请号：US12125298
申请日：2008-05-22
申请人： Tobias Wolff , Markus Buck
发明人： Tobias Wolff , Markus Buck
IPC分类号： H04B15/00
CPC分类号： H04M9/082 , G10L2021/02082 , G10L2021/02166
摘要： A system reduces noise or other external signals that may affect communication. A device converts sound from two or more microphones into an operational signal. Based on one or both signals, a beamformer generates an intermediate signal. Reflected or other undesired signals may be estimated or measured by an echo canceller. Interference may be measured or estimated by processing the echo-reduced signal or estimate by a blocking matrix. An interference canceller may reduce the interference that may modify or disrupt a signal based on the output of the blocking matrix and the intermediate signal.
摘要翻译： 系统减少可能影响通信的噪声或其他外部信号。 设备将来自两个或更多麦克风的声音转换为操作信号。 基于一个或两个信号，波束形成器产生中间信号。 可以通过回波消除器来估计或测量反射或其它不需要的信号。 可以通过处理回波减小信号或通过阻塞矩阵估计来测量或估计干扰。 干扰消除器可以减少可能基于阻塞矩阵和中间信号的输出修改或中断信号的干扰。
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52.发明申请SYSTEM FOR SPEECH SIGNAL ENHANCEMENT IN A NOISY ENVIRONMENT THROUGH CORRECTIVE ADJUSTMENT OF SPECTRAL NOISE POWER DENSITY ESTIMATIONS 有权通过光谱噪声功率密度估计的正确调整，噪声环境中的语音信号增强系统公开(公告)号：US20090063143A1
公开(公告)日：2009-03-05
申请号：US12202147
申请日：2008-08-29
申请人： Gerhard Uwe Schmidt , Tobias Wolff , Markus Buck
发明人： Gerhard Uwe Schmidt , Tobias Wolff , Markus Buck
IPC分类号： G10L15/20
CPC分类号： H04R3/00 , G10L21/0208 , G10L21/0216
摘要： A system estimates the spectral noise power density of an audio signal includes a spectral noise power density estimation unit, a correction term processor, and a combination processor. The spectral noise power density estimation unit may provide a first estimate of the spectral noise power density of the audio signal. The correction term processor may provide a time dependent correction term based, at least in part, on a spectral noise power density estimation error of the actual spectral noise power density. The correction term may be determined so that the spectral noise power density estimation error is reduced. The combination processor may combine the first estimate with the correction term to obtain a second estimate of the spectral noise power density that may be used for subsequent signal processing to enhance a desired signal component of the audio signal.
摘要翻译： 系统估计音频信号的频谱噪声功率密度包括频谱噪声功率密度估计单元，校正项处理器和组合处理器。 频谱噪声功率密度估计单元可以提供音频信号的频谱噪声功率密度的第一估计。 校正项处理器可以至少部分地基于实际频谱噪声功率密度的频谱噪声功率密度估计误差来提供时间相关校正项。 可以确定校正项，使得谱噪声功率密度估计误差降低。 组合处理器可以将第一估计与校正项组合以获得可用于后续信号处理以增强音频信号的期望信号分量的频谱噪声功率密度的第二估计。
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公开(公告)号：US07028526B2
公开(公告)日：2006-04-18
申请号：US10795274
申请日：2004-03-09
申请人： Karl Thudium , Markus Buck , Peter Sommerer
发明人： Karl Thudium , Markus Buck , Peter Sommerer
IPC分类号： B21D43/05
CPC分类号： B30B15/028 , B21D37/14 , B21D43/05
摘要： To accommodate a press tooling carrier without interference, a control arm straight guide having at least one drive, e.g., having motor angular gears (worm gears), cardan shaft or the like is provided. A control arm straight guide permits a very shallow position of the joints in the completely assembled state. A hydraulic cylinder may be used to support startup of the motor, i.e., to move the control arm straight guide out of its bottom dead center position.
摘要翻译： 为了容纳冲压工具载体而没有干扰，提供了具有至少一个驱动装置（例如具有马达角齿轮（蜗轮），万向轴等）的控制臂直引导件。 控制臂直线导轨允许接头处于完全组装状态的非常浅的位置。 可以使用液压缸来支持马达的启动，即将控制臂直的导轨移出其下止点位置。
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54.发明授权Method for determining a signal component for reducing noise in an input signal 有权用于确定用于降低输入信号中的噪声的信号分量的方法公开(公告)号：US08705759B2
公开(公告)日：2014-04-22
申请号：US12749136
申请日：2010-03-29
CPC分类号： G10L21/02
摘要： The invention provides a method for determining a signal component for reducing noise in an input signal, which comprises a noise component, comprising the steps of: estimating the noise component in the input signal, estimating a reverberation component in the noise component, and removing the estimated reverberation component from the estimated noise component to obtain a modified estimate of the noise component.
摘要翻译： 本发明提供一种确定用于降低输入信号中的噪声的信号分量的方法，包括噪声分量，包括以下步骤：估计输入信号中的噪声分量，估计噪声分量中的混响分量，以及去除 从估计的噪声分量估计混响分量，以获得噪声分量的修正估计。
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公开(公告)号：US08660274B2
公开(公告)日：2014-02-25
申请号：US12504333
申请日：2009-07-16
申请人： Tobias Wolff , Markus Buck , Gerhard Schmidt
发明人： Tobias Wolff , Markus Buck , Gerhard Schmidt
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , H04R2430/20 , H04R2430/23
摘要： Embodiments of the present invention relate to methods, systems, and computer program products for signal processing. A first plurality of microphone signals is obtained by a first microphone array. A second plurality of microphone signals is obtained by a second microphone array different from the first microphone array. The first plurality of microphone signals is beamformed by a first beamformer comprising beamforming weights to obtain a first beamformed signal. The second plurality of microphone signals is beamformed by a second beamformer comprising the same beamforming weights as the first beamformer to obtain a second beamformed signal. The beamforming weights are adjusted such that the power density of echo components and/or noise components present in the first and second plurality of microphone signals is substantially reduced.
摘要翻译： 本发明的实施例涉及用于信号处理的方法，系统和计算机程序产品。 第一麦克风信号由第一麦克风阵列获得。 通过与第一麦克风阵列不同的第二麦克风阵列获得第二多个麦克风信号。 第一组多个麦克风信号由包括波束成形权重的第一波束形成器波束形成，以获得第一波束形成信号。 第二组麦克风信号由包括与第一波束形成器相同的波束形成权重的第二波束形成器波束形成，以获得第二波束形成信号。 调整波束成形权重使得第一和第二多个麦克风信号中存在的回波分量和/或噪声分量的功率密度显着降低。
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公开(公告)号：US20130179163A1
公开(公告)日：2013-07-11
申请号：US13346854
申请日：2012-01-10
申请人： Tobias Herbig , Markus Buck , Meik Pfeffinger
发明人： Tobias Herbig , Markus Buck , Meik Pfeffinger
CPC分类号： H04R3/12 , G10L21/0208 , G10L25/84 , G10L2021/02082 , H04M9/082 , H04R1/406 , H04R3/005 , H04R3/02 , H04R5/02 , H04R27/00 , H04R2201/403 , H04R2227/001 , H04R2227/009 , H04R2410/05 , H04R2420/01 , H04R2499/13
摘要： An In-Car Communication (ICC) system supports the communication paths within a car by receiving the speech signals of a speaking passenger and playing it back for one or more listening passengers. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in a vehicle having multiple acoustic zones includes a plurality of microphone In-Car Communication (Mic-ICC) instances coupled and a plurality of loudspeaker In-Car Communication (Ls-ICC) instances. The system further includes a dynamic audio routing matrix with a controller and coupled to the Mic-ICC instances, a mixer coupled to the plurality of Mic-ICC instances and a distributor coupled to the Ls-ICC instances.
摘要翻译： 车载通信（ICC）系统通过接收说话的乘客的语音信号并且为一个或多个听力乘客返回来支持汽车内的通信路径。 信号处理任务分为麦克风相关部分和扬声器相关部分。 适用于具有多个声学区域的车辆的声音处理系统包括耦合的多个麦克风车载通信（Mic-ICC）实例和多个扬声器车载通信（Ls-ICC）实例。 该系统还包括具有控制器并耦合到Mic-ICC实例的动态音频路由矩阵，耦合到多个Mic-ICC实例的混合器和耦合到Ls-ICC实例的分配器。
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57.发明授权System for processing an acoustic input signal to provide an output signal with reduced noise 有权用于处理声输入信号以提供具有降低的噪声的输出信号的系统公开(公告)号：US08199928B2
公开(公告)日：2012-06-12
申请号：US12118205
申请日：2008-05-09
IPC分类号： H04B15/00
CPC分类号： G10L21/0208 , G10L21/0232 , G10L2021/02168
摘要： An apparatus processes an acoustic input signal to provide an output signal with reduced noise. The apparatus weights the input signal based on a frequency-dependent weighting function. A frequency-dependent threshold function bounds the weighting function from below.
摘要翻译： 一种装置处理声输入信号以提供具有降低的噪声的输出信号。 该装置基于频率依赖加权函数对输入信号进行加权。 频率相关阈值函数从下面界定加权函数。
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公开(公告)号：US08194500B2
公开(公告)日：2012-06-05
申请号：US12547681
申请日：2009-08-26
CPC分类号： G01S3/8083
摘要： A method of locating a sound source based on sound received at an array of microphones comprises the steps of determining a correlation function of signals provided by microphones of the array and establishing a direction in which the sound source is located based on at least one eigenvector of a matrix having matrix elements which are determined based on the correlation function. The correlation function has first and second frequency components associated with a first and second frequency band, respectively. The first frequency component is determined based on signals from microphones having a first distance, and the second frequency component is determined based on signals from microphones having a second distance different from the first distance.
摘要翻译： 基于在麦克风阵列处接收到的声音来定位声源的方法包括以下步骤：确定由阵列的麦克风提供的信号的相关函数，并基于至少一个本征向量建立声源所在的方向 具有基于相关函数确定的矩阵元素的矩阵。 相关函数分别具有与第一和第二频带相关联的第一和第二频率分量。 基于来自具有第一距离的麦克风的信号确定第一频率分量，并且基于来自具有不同于第一距离的第二距离的麦克风的信号来确定第二频率分量。
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公开(公告)号：US08160262B2
公开(公告)日：2012-04-17
申请号：US12263227
申请日：2008-10-31
申请人： Markus Buck , Arthur Wolf
发明人： Markus Buck , Arthur Wolf
IPC分类号： H04B1/38
CPC分类号： G10L2021/02082
摘要： A method is provided for estimating a reverberation signal component of an acoustic signal detected by a microphone where the acoustic signal is comprised of a direct sound component and a reverberation signal component. A method for dereverberation of an acoustic signal is further provided.
摘要翻译： 提供一种用于估计由麦克风检测到的声信号的混响信号分量的方法，其中声信号由直接声音分量和混响信号分量组成。 还提供了一种用于声信号的混响的方法。
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60.发明申请Method for Determining a Signal Component for Reducing Noise in an Input Signal 有权确定用于降低输入信号噪声的信号分量的方法公开(公告)号：US20100246844A1
公开(公告)日：2010-09-30
申请号：US12749136
申请日：2010-03-29
IPC分类号： H04B3/20
CPC分类号： G10L21/02
摘要： The invention provides a method for determining a signal component for reducing noise in an input signal, which comprises a noise component, comprising the steps of: estimating the noise component in the input signal, estimating a reverberation component in the noise component, and removing the estimated reverberation component from the estimated noise component to obtain a modified estimate of the noise component.
摘要翻译： 本发明提供一种确定用于降低输入信号中的噪声的信号分量的方法，包括噪声分量，包括以下步骤：估计输入信号中的噪声分量，估计噪声分量中的混响分量，以及去除 从估计的噪声分量估计混响分量，以获得噪声分量的修正估计。
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