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79 条记录 (耗时 0.03 秒)

    Microphone Non-Uniformity Compensation System
    31.
    发明申请
    Microphone Non-Uniformity Compensation System 有权
    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。

    System for equalizing an acoustic signal
    32.
    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
    33.
    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。

    Background noise reduction system
    34.
    发明授权
    Background noise reduction system 有权
    背景降噪系统

    公开(公告)号：US07930175B2

    公开(公告)日：2011-04-19

    申请号：US11767803

    申请日：2007-06-25

    申请人： Tim Haulick ,  Martin Roessler ,  Klaus Alois Haindl

    发明人： Tim Haulick ,  Martin Roessler ,  Klaus Alois Haindl

    IPC分类号： G10L21/02

    CPC分类号： G10L21/0208

    摘要： A noise reduction system includes a microphone configured to detect an acoustic signal. A first digitizer converts an output of the microphone into a discrete output signal. An acoustic sensor detects structure-borne noise, and a second digitizer converts an output of the acoustic sensor into a discrete acoustic noise reference signal. A noise compensation circuit processes the discrete output signal based on the discrete acoustic noise reference signal.

    摘要翻译： 降噪系统包括被配置为检测声信号的麦克风。 第一数字转换器将麦克风的输出转换为离散输出信号。 声学传感器检测结构噪声，第二数字转换器将声学传感器的输出转换成离散声学噪声参考信号。 噪声补偿电路基于离散噪声参考信号处理离散输出信号。

    System for limiting receive audio
    35.
    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。

    Noise reduction method with self-controlling interference frequency
    36.
    发明授权
    Noise reduction method with self-controlling interference frequency 有权

    公开(公告)号：US07020291B2

    公开(公告)日：2006-03-28

    申请号：US10121180

    申请日：2002-04-12

    申请人： Markus Buck ,  Tim Haulick ,  Klaus Linhard

    发明人： Markus Buck ,  Tim Haulick ,  Klaus Linhard

    IPC分类号： H04R3/00

    CPC分类号： G10L21/0208 ,  G10L2021/02165

    摘要： The present invention relates to a method with which speech is captured in a noisy environment with as high a speech quality as possible. To this end, a compact array of, for example, two single microphones is combined to form one system through signal processing methods consisting of adaptive beam formation and spectral subtraction. Through the combination with a spectral subtraction, the reference signal of the beam former is freed from speech signal components to the extent that a reference signal of the interference is formed and the beam former produces high gains.

    Method of reducing voice signal interference
    37.
    发明授权
    Method of reducing voice signal interference 有权
    降低语音信号干扰的方法

    公开(公告)号：US06687669B1

    公开(公告)日：2004-02-03

    申请号：US09214910

    申请日：1999-11-03

    申请人： Peter Schrögmeier ,  Tim Haulick ,  Klaus Linhard

    发明人： Peter Schrögmeier ,  Tim Haulick ,  Klaus Linhard

    IPC分类号： G10L2102

    CPC分类号： G10L21/0208 ,  G10L21/0264

    摘要： In a method for reducing interferences in a voice signal, a noise reduction method is applied to the voice signal, and spectral psychoacoustic masking is taken into account. A spectral masking curve is determined both for the input signal and the output signal of the noise reduction method. By comparing the signal portions exceeding the respective masking curve, newly-audible portions are detected in the form of interference in the output signal and subsequently damped selectively.

    摘要翻译： 在减少语音信号干扰的方法中，将噪声降低方法应用于语音信号，并考虑频谱心理声学掩蔽。 确定噪声降低方法的输入信号和输出信号的频谱掩蔽曲线。 通过比较超过相应屏蔽曲线的信号部分，以可能的形式在输出信号中检测新的可听见的部分，然后选择性地衰减。