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    • 5. 发明申请
    • Multi-channel echo compensation system
    • 多通道回波补偿系统
    • US20080031466A1
    • 2008-02-07
    • US11787348
    • 2007-04-16
    • Markus BuckTim HaulickMartin RoesslerGerhard Schmidt
    • Markus BuckTim HaulickMartin RoesslerGerhard Schmidt
    • H04B3/20
    • H04M9/082H04R3/02H04R2499/13
    • 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.
    • 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。
    • 9. 发明申请
    • Automatic control of adjustable elements associated with a vehicle
    • 自动控制与车辆相关的可调元件
    • US20070038444A1
    • 2007-02-15
    • US11362286
    • 2006-02-23
    • Markus BuckGerhard SchmidtTim Haulick
    • Markus BuckGerhard SchmidtTim Haulick
    • H04R3/00G10L15/26
    • B60R16/0373G10L2021/02165
    • A system for automatic adjustment of at least one element provided with at least one actuator and provided inside or outside a vehicular cabin is provided. The system includes at least one microphone array for detecting utterances of at least one speaker and for obtaining microphone signals corresponding to the utterances. A localization detector is configured to determine the position of the speaker on the basis of the microphone signals. The localization detector outputs a localization signal to a controller. The controller is configured to receive the localization signal and automatically controls the actuator of the element on the basis of the localization signal. A method for automatically adjusting at least one element provided with at least one actuator and provided inside or outside a vehicular cabin is also provided. The method includes detecting utterances of a speaker by a microphone array and obtaining microphone signals corresponding to the utterances. The method further includes determining the position of the speaker on the basis of the microphone signals and automatically controlling the actuator of the element on the basis of the determined position of the speaker to adjust the element.
    • 提供了一种用于自动调节至少一个设置有至少一个致动器并且设置在车厢内部或外部的元件的系统。 该系统包括至少一个麦克风阵列,用于检测至少一个扬声器的话语,并且用于获得对应于话语的麦克风信号。 定位检测器被配置为基于麦克风信号确定扬声器的位置。 定位检测器向控制器输出定位信号。 控制器被配置为接收定位信号并且基于定位信号自动地控制元件的致动器。 还提供一种用于自动调节至少一个设置有至少一个致动器并且设置在车厢内部或外部的元件的方法。 该方法包括通过麦克风阵列检测扬声器的话语并获得对应于话语的麦克风信号。 该方法还包括基于麦克风信号来确定扬声器的位置,并且基于所确定的扬声器的位置来自动控制元件的致动器以调整元件。
    • 10. 发明授权
    • Method for determining a time delay for time delay compensation
    • 用于确定时间延迟补偿的时间延迟的方法
    • US08238574B2
    • 2012-08-07
    • US12636160
    • 2009-12-11
    • Markus BuckTobias WolffGerhard SchmidtTim Haulick
    • Markus BuckTobias WolffGerhard SchmidtTim Haulick
    • H04R3/00
    • G01S3/807G10L21/02H04M9/082H04R1/406H04R3/005H04R3/02H04R2410/01H04R2430/23H04R2430/25H04R2499/13H04S1/00H04S3/00
    • The invention provides a computer-implemented method for determining a time delay for time delay compensation of a microphone signal from a microphone array in a beamformer arrangement. For a given time, an instantaneous estimate of a position of a wanted sound source and/or of a direction of arrival of a signal originating from the wanted sound source is determined. The computer system then determines whether the instantaneous estimate deviates from a preset estimate of a position of the wanted sound source and/or of a direction of arrival of a signal originating from the wanted sound source according to a predetermined criterion. The predetermined criterion comprises a check whether the instantaneous estimate deviates from the preset estimate by at least a predetermined deviation threshold. If the predetermined criterion is fulfilled, the instantaneous estimate for the given time is set by the computer system as the preset estimate, and the computer system determines the time delay for time delay compensation of the microphone signal based on the instantaneous estimate.
    • 本发明提供了一种计算机实现的方法,用于确定来自波束形成器布置中的麦克风阵列的麦克风信号的时间延迟的时间延迟。 对于给定时间,确定所需声源的位置和/或源自所需声源的信号的到达方向的瞬时估计。 计算机系统然后根据预定标准确定瞬时估计是否偏离预期的所需声源的位置的预设估计和/或源自所需声源的信号的到达方向。 预定标准包括检查瞬时估计是否偏离预设估计至少预定的偏差阈值。 如果满足预定标准,则由计算机系统将给定时间的瞬时估计值设置为预设估计,并且计算机系统基于瞬时估计确定麦克风信号的时间延迟补偿的时间延迟。