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    System for limiting receive audio
    1.
    发明授权
    System for limiting receive audio 有权
    限制接收音频的系统

    公开(公告)号：US07894598B2

    公开(公告)日：2011-02-22

    申请号：US11012079

    申请日：2004-12-14

    申请人： Gerhard Uwe Schmidt ,  Tim Haulick ,  Clarence Chu ,  David Giesbrecht

    发明人： Gerhard Uwe Schmidt ,  Tim Haulick ,  Clarence Chu ,  David Giesbrecht

    IPC分类号： H04M9/08

    CPC分类号： H04M9/082

    摘要： A system for limiting a received audio signal in a communication system is provided. The receive audio signal is limited prior to being played over a loudspeaker to insure that the loudspeaker output will not be clipped when picked up by a nearby microphone associated with the communication system. By preventing clipping of the loudspeaker output at the microphone, the transfer function of the loudspeaker-enclosure-microphone system remains linear, facilitating accurate echo cancellation in the communication system.

    摘要翻译： 提供了一种用于限制通信系统中接收到的音频信号的系统。 接收音频信号在通过扬声器播放之前受到限制，以确保当与通信系统相关联的附近的麦克风拾取时扬声器输出将不被削波。 通过防止麦克风上的扬声器输出的削波，扬声器 - 麦克风系统的传输功能保持线性，便于在通信系统中进行精确的回波消除。

    System for limiting receive audio
    2.
    发明申请
    System for limiting receive audio 有权
    限制接收音频的系统

    公开(公告)号：US20060126822A1

    公开(公告)日：2006-06-15

    申请号：US11012079

    申请日：2004-12-14

    申请人： Gerhard Schmidt ,  Tim Haulick ,  Clarence Chu ,  David Giesbrecht

    发明人： Gerhard Schmidt ,  Tim Haulick ,  Clarence Chu ,  David Giesbrecht

    IPC分类号： H04M9/08

    CPC分类号： H04M9/082

    摘要： A system for limiting a received audio signal in a communication system is provided. The receive audio signal is limited prior to being played over a loudspeaker to insure that the loudspeaker output will not be clipped when picked up by a nearby microphone associated with the communication system. By preventing clipping of the loudspeaker output at the microphone, the transfer function of the loudspeaker-enclosure-microphone system remains linear, facilitating accurate echo cancellation in the communication system.

    摘要翻译： 提供了一种用于限制通信系统中接收到的音频信号的系统。 接收音频信号在通过扬声器播放之前受到限制，以确保当与通信系统相关联的附近的麦克风拾取时扬声器输出将不被削波。 通过防止麦克风上的扬声器输出的削波，扬声器 - 麦克风系统的传输功能保持线性，便于在通信系统中进行精确的回波消除。

    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。

    Indoor communication system for a vehicular cabin
    6.
    发明授权
    Indoor communication system for a vehicular cabin 有权
    车厢内室内通讯系统

    公开(公告)号：US08081776B2

    公开(公告)日：2011-12-20

    申请号：US11118092

    申请日：2005-04-29

    申请人： Tim Haulick ,  Gerhard Uwe Schmidt

    发明人： Tim Haulick ,  Gerhard Uwe Schmidt

    IPC分类号： H03G5/00

    CPC分类号： H03G5/165 ,  H04R3/02 ,  H04R5/02 ,  H04R29/001 ,  H04R2499/13

    摘要： A system automatically determines an equalizing filter characteristic for a communication system within a vehicle. The communication system includes a loudspeaker and a microphone or microphone array. The system transmits a predetermined test signal through the loudspeaker and receive the test signal through the microphone or microphone array. Based on the predetermined test signal and the received test signal, a transfer function is developed. The equalizing filter characteristic is then developed from the transfer function.

    摘要翻译： 系统自动确定车辆内的通信系统的均衡滤波器特性。 通信系统包括扬声器和麦克风或麦克风阵列。 系统通过扬声器发送预定的测试信号，并通过麦克风或麦克风阵列接收测试信号。 基于预定的测试信号和接收到的测试信号，开发传递函数。 然后从传递函数开发均衡滤波器特性。