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61. 发明授权

US08483406B2 System for detecting and reducing noise via a microphone array 有权
公开(公告)号：US08483406B2
公开(公告)日：2013-07-09
申请号：US12843632
申请日：2010-07-26
申请人： Markus Buck , Tim Haulick
发明人： Markus Buck , Tim Haulick
IPC分类号： H04R3/00
CPC分类号： H04R29/005 , G10L21/0216 , G10L21/0232 , G10L2021/02166 , H04R3/005 , H04R2410/07 , H04R2430/20
摘要： A system for detecting noise in a signal received by a microphone array and a method for detecting noise in a signal received by a microphone array is disclosed. The system also provides for the reduction of noise in a signal received by a microphone array and a method for reducing noise in a signal received by a microphone array. The signal to noise ratio in handsfree systems may be improved, particularly in handsfree systems present in a vehicular environment.

62. 发明授权

US08238575B2 Determination of the coherence of audio signals 有权
标题翻译：确定音频信号的相干性
公开(公告)号：US08238575B2
公开(公告)日：2012-08-07
申请号：US12636432
申请日：2009-12-11
申请人： Markus Buck , Timo Matheja
发明人： Markus Buck , Timo Matheja
IPC分类号： H04B15/00
CPC分类号： G10L25/78 , G10L2021/02165
摘要： Embodiments of the invention disclose computer-implemented methods, systems, and computer program products for estimating signal coherence. First, a sound generated by a sound source is detected by a first microphone to obtain a first microphone signal and by a second microphone to obtain a second microphone signal. The first microphone signal is filtered by a first adaptive finite impulse response filter to obtain a first filtered signal. The second microphone signal is filtered by a second adaptive finite impulse response filter, to obtain a second filtered signal. The coherence of the first filtered signal and the second filtered signal is determined based upon the filtered signals. The first and the second microphone signals are filtered such that the difference between the acoustic transfer function for the transfer of the sound from the sound source to the first microphone and the transfer of the sound from the sound source to the second microphone is compensated in the first and second filtered signals.
摘要翻译：本发明的实施例公开了用于估计信号一致性的计算机实现的方法，系统和计算机程序产品。首先，由第一麦克风检测由声源产生的声音以获得第一麦克风信号，并由第二麦克风检测第二麦克风信号。第一麦克风信号被第一自适应有限脉冲响应滤波器滤波以获得第一滤波信号。第二麦克风信号被第二自适应有限脉冲响应滤波器滤波，以获得第二滤波信号。基于经滤波的信号确定第一滤波信号和第二滤波信号的相干性。第一麦克风信号和第二麦克风信号被滤波，以便在声音传输到第一麦克风的声音传递功能与声音从声源传输到第二麦克风之间的差异被补偿在第一和第二滤波信号。

63. 发明授权

US08194872B2 Multi-channel adaptive speech signal processing system with noise reduction 有权
标题翻译：具有降噪功能的多声道自适应语音信号处理系统
公开(公告)号：US08194872B2
公开(公告)日：2012-06-05
申请号：US11234837
申请日：2005-09-23
申请人： Markus Buck , Tim Haulick , Phillip A. Hetherington , Pierre Zakarauskas
发明人： Markus Buck , Tim Haulick , Phillip A. Hetherington , Pierre Zakarauskas
IPC分类号： A61F11/06 , H04B15/00 , H04R1/40
CPC分类号： G10L21/0208 , G10L21/0216 , G10L2021/02166 , H04R3/005 , H04R2430/25
摘要： An adaptive signal processing system eliminates noise from input signals while retaining desired signal content, such as speech. The resulting low noise output signal delivers improved clarity and intelligibility. The low noise output signal also improves the performance of subsequent signal processing systems, including speech recognition systems. An adaptive beamformer in the signal processing system consistently updates beamforming signal weights in response to changing microphone signal conditions. The adaptive weights emphasize the contribution of high energy microphone signals to the beamformed output signal. In addition, adaptive noise cancellation logic removes residual noise from the beamformed output signal based on a noise estimate derived from the microphone input signals.
摘要翻译：自适应信号处理系统消除来自输入信号的噪声，同时保留期望的信号内容，例如语音。所产生的低噪声输出信号提供了更好的清晰度和清晰度。低噪声输出信号还提高了后续信号处理系统的性能，包括语音识别系统。信号处理系统中的自适应波束形成器响应于变化的麦克风信号状况持续更新波束成形信号权重。自适应权重强调高能麦克风信号对波束形成的输出信号的贡献。此外，自适应噪声消除逻辑基于从麦克风输入信号导出的噪声估计，从波束形成的输出信号中去除残余噪声。

64. 发明申请

US20110026732A1 System for Detecting and Reducing Noise via a Microphone Array 有权
标题翻译：通过麦克风阵列检测和降低噪声的系统
公开(公告)号：US20110026732A1
公开(公告)日：2011-02-03
申请号：US12843632
申请日：2010-07-26
申请人： Markus Buck , Tim Haulick
发明人： Markus Buck , Tim Haulick
IPC分类号： H04R3/00
CPC分类号： H04R29/005 , G10L21/0216 , G10L21/0232 , G10L2021/02166 , H04R3/005 , H04R2410/07 , H04R2430/20
摘要： A system for detecting noise in a signal received by a microphone array and a method for detecting noise in a signal received by a microphone array is disclosed. The system also provides for the reduction of noise in a signal received by a microphone array and a method for reducing noise in a signal received by a microphone array. The signal to noise ratio in handsfree systems may be improved, particularly in handsfree systems present in a vehicular environment.
摘要翻译：公开了一种用于检测由麦克风阵列接收的信号中的噪声的系统和用于检测由麦克风阵列接收的信号中的噪声的方法。该系统还提供了降低由麦克风阵列接收的信号中的噪声以及用于降低由麦克风阵列接收的信号中的噪声的方法。免提系统中的信噪比可以得到改善，特别是在车辆环境中的免提系统中。

65. 发明申请

US20090125311A1 VEHICULAR VOICE CONTROL SYSTEM 审中-公开
标题翻译：车用语音控制系统
公开(公告)号：US20090125311A1
公开(公告)日：2009-05-14
申请号：US11865930
申请日：2007-10-02
申请人： Tim Haulick , Markus Buck , Marcus Hennecke
发明人： Tim Haulick , Markus Buck , Marcus Hennecke
IPC分类号： G10L11/00
CPC分类号： B60R16/0373
摘要： A vehicular voice control system includes a first and a second microphone located on a vehicle external to a vehicle cabin. The microphones receive audio signals from an audio source external to the vehicle and generate microphone output signals. A signal processor processes the microphone output signals, generates a processed signal, and determines a location of the audio source. A speech recognition system receives the processed signal and obtains a recognition result. A controller controls one or more vehicular elements based on the recognition result and the determined location of the audio source.
摘要翻译：车辆语音控制系统包括位于车辆外部的车辆上的第一和第二麦克风。麦克风从车辆外部的音频源接收音频信号，并产生麦克风输出信号。信号处理器处理麦克风输出信号，产生经处理的信号，并确定音频源的位置。语音识别系统接收经处理的信号并获得识别结果。控制器基于识别结果和确定的音频源的位置来控制一个或多个车辆元件。

66. 发明申请

US20080031466A1 Multi-channel echo compensation system 有权
标题翻译：多通道回波补偿系统
公开(公告)号：US20080031466A1
公开(公告)日：2008-02-07
申请号：US11787348
申请日：2007-04-16
申请人： Markus Buck , Tim Haulick , Martin Roessler , Gerhard Schmidt
发明人： Markus Buck , Tim Haulick , Martin Roessler , Gerhard Schmidt
IPC分类号： H04B3/20
CPC分类号： H04M9/082 , H04R3/02 , H04R2499/13
摘要： The invention is directed to a multi-channel echo compensation system, comprising two loudspeaker input channels, each loudspeaker input channel being connected to a loud-speaker for providing a loudspeaker input signal to be emanated by the loudspeaker, a microphone output channel being connected to at least one microphone for receiving a microphone output signal from the at least one microphone, wherein each microphone is configured to acquire a signal emanating from the loudspeakers, a compensation channel for each loudspeaker input channel, each compensation channel connecting a respective loudspeaker input channel and the microphone output channel, an adaptive compensation filter for each compensation channel, wherein each adaptive compensation filter is configured to filter a signal on the respective compensation channel such that a compensation output signal is provided to compensate a microphone output signal for a signal emanating from the loudspeakers, a pre-processing means for pre-processing loudspeaker input signals on the compensation channels, the pre-processing means being configured to determine a correlation value of the loudspeaker input signals for the two loudspeakers according to a pre-determined criterion and to de-activate one of the adaptive compensation filters if the determined correlation value passes a pre-determined threshold.
摘要翻译：本发明涉及一种多通道回波补偿系统，包括两个扬声器输入通道，每个扬声器输入通道连接到扬声器，用于提供由扬声器发出的扬声器输入信号;麦克风输出通道连接到至少一个麦克风，用于从所述至少一个麦克风接收麦克风输出信号，其中每个麦克风被配置为获取从扬声器发出的信号，每个扬声器输入通道的补偿通道，每个补偿通道连接相应的扬声器输入通道和麦克风输出通道，用于每个补偿通道的自适应补偿滤波器，其中每个自适应补偿滤波器被配置为对相应补偿通道上的信号进行滤波，使得提供补偿输出信号以补偿麦克风输出信号，以产生从扬声器，预处理手段用于在补偿通道上预处理扬声器输入信号，预处理装置被配置为根据预定准则确定两个扬声器的扬声器输入信号的相关值，并且去激活自适应补偿中的一个如果确定的相关值通过预定阈值，则滤波器。

67. 发明申请

US20060222184A1 Multi-channel adaptive speech signal processing system with noise reduction 有权
标题翻译：具有降噪功能的多声道自适应语音信号处理系统
公开(公告)号：US20060222184A1
公开(公告)日：2006-10-05
申请号：US11234837
申请日：2005-09-23
申请人： Markus Buck , Tim Haulick , Phillip Hetherington , Pierre Zakarauskas
发明人： Markus Buck , Tim Haulick , Phillip Hetherington , Pierre Zakarauskas
IPC分类号： A61F11/06 , G10K11/16 , H03B29/00
CPC分类号： G10L21/0208 , G10L21/0216 , G10L2021/02166 , H04R3/005 , H04R2430/25
摘要： An adaptive signal processing system eliminates noise from input signals while retaining desired signal content, such as speech. The resulting low noise output signal delivers improved clarity and intelligibility. The low noise output signal also improves the performance of subsequent signal processing systems, including speech recognition systems. An adaptive beamformer in the signal processing system consistently updates beamforming signal weights in response to changing microphone signal conditions. The adaptive weights emphasize the contribution of high energy microphone signals to the beamformed output signal. In addition, adaptive noise cancellation logic removes residual noise from the beamformed output signal based on a noise estimate derived from the microphone input signals.
摘要翻译：自适应信号处理系统消除来自输入信号的噪声，同时保留期望的信号内容，例如语音。所产生的低噪声输出信号提供了更好的清晰度和清晰度。低噪声输出信号还提高了后续信号处理系统的性能，包括语音识别系统。信号处理系统中的自适应波束形成器响应于变化的麦克风信号状况持续更新波束成形信号权重。自适应权重强调高能麦克风信号对波束形成的输出信号的贡献。此外，自适应噪声消除逻辑基于从麦克风输入信号导出的噪声估计，从波束形成的输出信号中去除残余噪声。

68. 发明申请

US20130179163A1 IN-CAR COMMUNICATION SYSTEM FOR MULTIPLE ACOUSTIC ZONES 有权
标题翻译：多声道区域的车内通信系统
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
IPC分类号： G10L15/20 , H04B1/00
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。

69. 发明申请

US20120106749A1 Microphone Non-Uniformity Compensation System 有权
标题翻译：麦克风不均匀性补偿系统
公开(公告)号：US20120106749A1
公开(公告)日：2012-05-03
申请号：US13273816
申请日：2011-10-14
申请人： Markus Buck , Tim Haulick
发明人： Markus Buck , Tim Haulick
IPC分类号： H04B3/20 , H04R3/00
CPC分类号： H04R3/005 , H04R2430/25
摘要： A microphone compensation system responds to changes in the characteristics of individual microphones in an array of microphones. The microphone compensation system provides a communication system with consistent performance despite microphone aging, widely varying environmental conditions, and other factors that alter the characteristics of the microphones. Furthermore, lengthy, complex, and costly measurement and analysis phases for determining initial settings for filters in the communication system are eliminated.
摘要翻译：麦克风补偿系统可以响应麦克风阵列中各个麦克风的特性变化。麦克风补偿系统提供了具有一致性能的通信系统，尽管麦克风老化，广泛变化的环境条件以及改变麦克风特性的其它因素。此外，消除了用于确定通信系统中的滤波器的初始设置的冗长，复杂且昂贵的测量和分析阶段。

70. 发明授权

US08160262B2 Method for dereverberation of an acoustic signal 有权
标题翻译：声信号的混响方法
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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