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    Low complexity echo compensation system
    1.
    发明授权
    Low complexity echo compensation system 有权
    低复杂度回波补偿系统

    公开(公告)号：US08194852B2

    公开(公告)日：2012-06-05

    申请号：US11955862

    申请日：2007-12-13

    申请人： Markus Buck ,  Tim Haulick ,  Martin Rössler ,  Gerhard Uwe Schmidt ,  Walter Schnug

    发明人： Markus Buck ,  Tim Haulick ,  Martin Rössler ,  Gerhard Uwe Schmidt ,  Walter Schnug

    IPC分类号： H04M9/08

    CPC分类号： H04M9/082

    摘要： An echo reduction system includes a signal analysis filter that converts an input into sub-band signals. A signal down-sampling circuit down-samples the sub-band signals at a first down-sampling rate. An echo analysis filter converts a loudspeaker signal into echo sub-band signal that are further processed by an echo down-sampling circuit. The circuit down-samples the echo sub-band signals at a second down-sampling rate to generate down-sampled echo sub-band signals. An echo compensation filter folds the down-sampled echo sub-band signals with an estimated impulse response of a loudspeaker-room-input system. A second echo down-sampling circuit down-samples the folded down-sampled echo sub-band signals at a third down-sampling rate to generate estimated echo sub-band signals. The first down-sampling rate is equal to the product of the second and third down-sampling rates.

    摘要翻译： 回波减少系统包括将输入转换为子带信号的信号分析滤波器。 信号下采样电路以第一下采样率对子带信号进行下采样。 回波分析滤波器将扬声器信号转换成由回波下采样电路进一步处理的回波子带信号。 电路以第二次下采样率对回波子带信号进行下采样以产生下采样的回波子带信号。 回波补偿滤波器用扬声器室输入系统的估计的脉冲响应折叠下采样的回波子带信号。 第二回波下采样电路以三次下采样率对折叠的下采样回波子带信号进行下采样，以产生估计的回波子带信号。 第一个下采样率等于第二次和第三次下采样率的乘积。

    LOW COMPLEXITY ECHO COMPENSATION SYSTEM
    2.
    发明申请
    LOW COMPLEXITY ECHO COMPENSATION SYSTEM 有权
    低复杂度ECHO补偿系统

    公开(公告)号：US20080144848A1

    公开(公告)日：2008-06-19

    申请号：US11955862

    申请日：2007-12-13

    申请人： Markus Buck ,  Tim Haulick ,  Martin Rossler ,  Gerhard Uwe Schmidt ,  Walter Schnug

    发明人： Markus Buck ,  Tim Haulick ,  Martin Rossler ,  Gerhard Uwe Schmidt ,  Walter Schnug

    IPC分类号： H04B3/20

    CPC分类号： H04M9/082

    摘要： An echo reduction system includes a signal analysis filter that converts an input into sub-band signals. A signal down-sampling circuit down-samples the sub-band signals at a first down-sampling rate. An echo analysis filter converts a loudspeaker signal into echo sub-band signal that are further processed by an echo down-sampling circuit. The circuit down-samples the echo sub-band signals at a second down-sampling rate to generate down-sampled echo sub-band signals. An echo compensation filter folds the down-sampled echo sub-band signals with an estimated impulse response of a loudspeaker-room-input system. A second echo down-sampling circuit down-samples the folded down-sampled echo sub-band signals at a third down-sampling rate to generate estimated echo sub-band signals. The first down-sampling rate is equal to the product of the second and third down-sampling rates.

    摘要翻译： 回波减少系统包括将输入转换为子带信号的信号分析滤波器。 信号下采样电路以第一下采样率对子带信号进行下采样。 回波分析滤波器将扬声器信号转换成由回波下采样电路进一步处理的回波子带信号。 电路以第二次下采样率对回波子带信号进行下采样以产生下采样的回波子带信号。 回波补偿滤波器用扬声器室输入系统的估计的脉冲响应折叠下采样的回波子带信号。 第二回波下采样电路以三次下采样率对折叠的下采样回波子带信号进行下采样，以产生估计的回波子带信号。 第一个下采样率等于第二次和第三次下采样率的乘积。

    Vehicle communication system
    3.
    发明授权
    Vehicle communication system 有权
    车辆通信系统

    公开(公告)号：US08483775B2

    公开(公告)日：2013-07-09

    申请号：US13240424

    申请日：2011-09-22

    申请人： Markus Buck ,  Tim Haulick ,  Gerhard Uwe Schmidt ,  Michael Tropp

    发明人： Markus Buck ,  Tim Haulick ,  Gerhard Uwe Schmidt ,  Michael Tropp

    IPC分类号： H04M1/00

    CPC分类号： H04M1/6083 ,  H04M9/001 ,  H04M2250/02 ,  H04R2420/07 ,  H04R2499/13 ,  H04W4/04 ,  H04W88/02

    摘要： A vehicle communication system detects the presence of a passenger wearable communication device. The system receives audio signals from multiple sources inside or outside of a vehicle. The system processes the signals before routing the signals to multiple destinations. The destinations may include wearable personal communication devices, front and/or rear speakers, and/or a remote mobile device.

    摘要翻译： 车辆通信系统检测乘客可穿戴通信设备的存在。 该系统从车辆内部或外部的多个源接收音频信号。 在将信号路由到多个目的地之前，系统处理信号。 目的地可以包括穿戴式个人通信设备，前置和/或后置扬声器和/或远程移动设备。

    System for equalizing an acoustic signal
    5.
    发明授权
    System for equalizing an acoustic signal 有权
    用于均衡声信号的系统

    公开(公告)号：US08098848B2

    公开(公告)日：2012-01-17

    申请号：US11749678

    申请日：2007-05-16

    申请人： Tim Haulick ,  Gerhard Uwe Schmidt ,  Markus Buck

    发明人： Tim Haulick ,  Gerhard Uwe Schmidt ,  Markus Buck

    IPC分类号： H03G5/00

    CPC分类号： H03G3/32 ,  H03G5/16 ,  H04R3/04 ,  H04R2499/13

    摘要： An equalization system enhances the quality of communications between a remote party and a local party. The equalization system includes an equalization filter that equalizes an acoustic signal received from the remote party. The equalized acoustic signal is transmitted to a speaker based on the equalized acoustic signal. A device converts sound into electrical signals. The electrical signals are transmitted to an echo compensation filter that compensates for reflected sound. Filter characteristics of the equalization filter are based on filter characteristics of the echo compensation filter.

    摘要翻译： 均衡系统提高了远程方与本地方之间的通信质量。 均衡系统包括均衡滤波器，其均衡从远程方接收的声信号。 均衡的声信号基于均衡的声信号被发送到扬声器。 设备将声音转换为电信号。 电信号被传送到补偿反射声音的回波补偿滤波器。 均衡滤波器的滤波特性基于回波补偿滤波器的滤波特性。

    DETECTING BARGE-IN IN A SPEECH DIALOGUE SYSTEM
    9.
    发明申请
    DETECTING BARGE-IN IN A SPEECH DIALOGUE SYSTEM 有权
    检测语音对话系统中的边界

    公开(公告)号：US20090254342A1

    公开(公告)日：2009-10-08

    申请号：US12415927

    申请日：2009-03-31

    申请人： Markus Buck ,  Franz Gerl ,  Tim Haulick ,  Tobias Herbig ,  Gerhard Uwe Schmidt ,  Matthias Schulz

    发明人： Markus Buck ,  Franz Gerl ,  Tim Haulick ,  Tobias Herbig ,  Gerhard Uwe Schmidt ,  Matthias Schulz

    IPC分类号： G10L17/00 ,  G10L15/20

    CPC分类号： G10L25/78 ,  G10L15/222 ,  G10L17/00 ,  G10L2025/786

    摘要： A method for detecting barge-in in a speech dialogue system comprising determining whether a speech prompt is output by the speech dialogue system, and detecting whether speech activity is present in an input signal based on a time-varying sensitivity threshold of a speech activity detector and/or based on speaker information, where the sensitivity threshold is increased if output of a speech prompt is determined and decreased if no output of a speech prompt is determined. If speech activity is detected in the input signal, the speech prompt may be interrupted or faded out. A speech dialogue system configured to detect barge-in is also disclosed.

    摘要翻译： 一种用于检测语音对话系统中的插入的方法，包括确定语音对话系统是否输出语音提示，以及基于语音活动检测器的时变灵敏度阈值来检测语音活动是否存在于输入信号中 和/或基于说话者信息，其中如果确定了语音提示的输出，则在不确定语音提示的输出的情况下确定并减小了灵敏度阈值。 如果在输入信号中检测到语音活动，语音提示可能被中断或淡出。 还公开了一种配置成检测插入的语音对话系统。