Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements
    1.
    发明授权
    Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements 有权
    用于降低非线性滤波器布置中的计算复杂度的方法以及相应的滤波器布置

    公开(公告)号:US07813496B2

    公开(公告)日:2010-10-12

    申请号:US11133119

    申请日:2005-05-19

    IPC分类号: H04M9/08

    摘要: A method for creating a form of a non-linear filter suitable for reducing a computational complexity is proposed. The filter is resolved into polyphase components in such a way that the polyphase components can be interchanged with a conversion of the sampling rate of a signal to be sent to the filter or of a signal to be emitted by the filter. Corresponding filters and filter arrangements are also proposed. In this way, a computational complexity for calculating the signal to be emitted by the filter can be significantly simplified. The invention can be used in echo compensation.

    摘要翻译: 提出了一种用于创建适合于降低计算复杂度的非线性滤波器形式的方法。 滤波器被解析为多相分量,使得多相分量可以与要发送到滤波器的信号的采样速率或由滤波器发射的信号的变换相互交换。 还提出了相应的滤波器和滤波器布置。 以这种方式,可以显着简化用于计算由滤波器发射的信号的计算复杂度。 本发明可用于回波补偿。

    Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements
    2.
    发明申请
    Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements 有权
    用于降低非线性滤波器布置中的计算复杂度的方法以及相应的滤波器布置

    公开(公告)号:US20050286668A1

    公开(公告)日:2005-12-29

    申请号:US11133119

    申请日:2005-05-19

    摘要: A method for creating a form of a non-linear filter suitable for reducing a computational complexity is proposed. The filter is resolved into polyphase components in such a way that the polyphase components can be interchanged with a conversion of the sampling rate of a signal to be sent to the filter or of a signal to be emitted by the filter. Corresponding filters and filter arrangements are also proposed. In this way, a computational complexity for calculating the signal to be emitted by the filter can be significantly simplified. The invention can be used in echo compensation.

    摘要翻译: 提出了一种用于创建适合于降低计算复杂度的非线性滤波器形式的方法。 滤波器被解析为多相分量,使得多相分量可以与要发送到滤波器的信号的采样速率或由滤波器发射的信号的变换相互交换。 还提出了相应的滤波器和滤波器布置。 以这种方式,可以显着简化用于计算由滤波器发射的信号的计算复杂度。 本发明可用于回波补偿。

    METHOD FOR DETERMINING THE FLOW RATE OF FLUIDS USING THE ULTRASONIC TRANSIT TIME METHOD
    3.
    发明申请
    METHOD FOR DETERMINING THE FLOW RATE OF FLUIDS USING THE ULTRASONIC TRANSIT TIME METHOD 有权
    使用超声波传输时间方法确定流体流速的方法

    公开(公告)号:US20140216166A1

    公开(公告)日:2014-08-07

    申请号:US14128360

    申请日:2012-06-19

    IPC分类号: G01F1/66

    摘要: In a method for determining the flow rate of fluids using the ultrasonic transit time method, the flow speed and therefrom the flow rate of the fluid is determined from the transit time of ultrasound signals through the measurement section.In order to take into account the change in the transmission function of the ultrasonic converters, which change acts as a drift of the measurement variable, the transmission function of the measurement section is determined at least approximately, and at least one ultrasonic transit time is corrected by means of a correction value that is determined from the group transit time of the transmission function.

    摘要翻译: 在使用超声波传播时间法测定流体的流量的方法中,根据超声信号通过测量部的传播时间来确定流速和流体的流速。 为了考虑超声波转换器的传输功能的变化,该变化作为测量变量的漂移,测量部分的传输功能至少大约确定并且至少一个超声波传播时间被校正 借助于从发送功能的组渡越时间确定的校正值。

    HOUSING FOR MICROPHONE ARRAYS AND MULTI-SENSOR DEVICES FOR THEIR SIZE OPTIMIZATION
    4.
    发明申请
    HOUSING FOR MICROPHONE ARRAYS AND MULTI-SENSOR DEVICES FOR THEIR SIZE OPTIMIZATION 有权
    用于麦克风阵列的壳体和用于尺寸优化的多传感器装置

    公开(公告)号:US20100329478A1

    公开(公告)日:2010-12-30

    申请号:US12742277

    申请日:2008-11-10

    IPC分类号: H04R3/00

    摘要: A sensor system being is located in an environment composed of a first medium, where waves propagate with a first phase velocity, the sensor system including at least one main enclosure and a sensor array with at least two sensors, said sensor array being arranged inside the main enclosure, wherein the space inside the main enclosure between the sensor array and the inner surface of the main enclosure is filled with a second medium, in which waves propagate with a second phase velocity, the second phase velocity being different from the first velocity.

    摘要翻译: 传感器系统位于由第一介质组成的环境中,其中波以第一相速度传播,所述传感器系统包括至少一个主外壳和具有至少两个传感器的传感器阵列,所述传感器阵列布置在 主壳体,其中主壳体内部的空间在传感器阵列和主壳体的内表面之间填充有第二介质,其中波以第二相速度传播,第二相速度与第一速度不同。

    JOINT POSITION-PITCH ESTIMATION OF ACOUSTIC SOURCES FOR THEIR TRACKING AND SEPARATION
    5.
    发明申请
    JOINT POSITION-PITCH ESTIMATION OF ACOUSTIC SOURCES FOR THEIR TRACKING AND SEPARATION 有权
    联合位置估计用于跟踪和分离的声源

    公开(公告)号:US20100142327A1

    公开(公告)日:2010-06-10

    申请号:US12602640

    申请日:2007-06-01

    IPC分类号: G01S3/80

    摘要: The invention relates to a method for localizing and tracking acoustic sources (101) in a multi-source environment, comprising the steps of recording audio-signals (103) of at least one acoustic source (101) with at least two recording means (104, 105), creating a two- or multi-channel recording signal, partitioning said recording signal into frames of predefined length (N), calculating for each frame a cross-correlation function as a function of discrete time-lag values (τ) for channel pairs (106, 107) of the recording signal, evaluating the cross-correlation function by calculating a sampling function depending on a pitch parameter (f0) and at least one spatial parameter (φ0), the sampling function assigning a value to every point of a multidimensional space being spanned by the pitch-parameter and the spatial parameters, and identifying peaks in said multidimensional space with respective acoustic sources in the multi-source environment.

    摘要翻译: 本发明涉及一种用于在多源环境中定位和跟踪声源(101)的方法,包括以下步骤:用至少两个记录装置(104)记录至少一个声源(101)的音频信号(103) ,105),创建两通道或多通道记录信号,将所述记录信号划分成预定长度(N)的帧,为每帧计算作为离散时间滞后值(τ)的函数的互相关函数 信道对(106,107),通过计算取决于音调参数(f0)和至少一个空间参数(&phgr; 0)的采样函数来评估互相关函数,该采样函数将值分配给 通过音调参数和空间参数跨越多维空间的每个点,以及在多源环境中用相应声源识别所述多​​维空间中的峰值。

    Method for determining a model for an electrical network and use of the method
    6.
    发明申请
    Method for determining a model for an electrical network and use of the method 有权
    用于确定电网的模型的方法和该方法的使用

    公开(公告)号:US20060264187A1

    公开(公告)日:2006-11-23

    申请号:US11413491

    申请日:2006-04-28

    IPC分类号: H04B1/04 H01Q11/12

    CPC分类号: G06F17/5036

    摘要: An electrical network having a nonlinear transfer response is approximated with a system with memory. The system with memory being approximated in the frequency domain and subsequently being expanded in the time domain. A transfer response of the system being approximated to a transfer response of the electrical network in a range of a system bandwidth corresponding to an input signal bandwidth. The resulting model has adjustable parameters and can readily be implemented in the form of a dynamically linear filter and a static nonlinearity (B2) connected thereto.

    摘要翻译: 具有非线性传递响应的电网被具有存储器的系统近似。 具有存储器的系统在频域中近似,随后在时域中被扩展。 系统的传输响应近似于在与输入信号带宽相对应的系统带宽的范围内的电网的传输响应。 所得到的模型具有可调整的参数,并且可以以动态线性滤波器和与其连接的静态非线性(B 2)的形式容易地实现。

    Method for determining the flow rate of fluids using the ultrasonic transit time method
    7.
    发明授权
    Method for determining the flow rate of fluids using the ultrasonic transit time method 有权
    使用超声波传播时间法确定流体流量的方法

    公开(公告)号:US09354093B2

    公开(公告)日:2016-05-31

    申请号:US14128360

    申请日:2012-06-19

    IPC分类号: G01F1/66 G01F25/00

    摘要: In a method for determining the flow rate of fluids using the ultrasonic transit time method, the flow speed and therefrom the flow rate of the fluid is determined from the transit time of ultrasound signals through the measurement section. In order to take into account the change in the transmission function of the ultrasonic converters, which change acts as a drift of the measurement variable, the transmission function of the measurement section is determined at least approximately, and at least one ultrasonic transit time is corrected by means of a correction value that is determined from the group transit time of the transmission function.

    摘要翻译: 在使用超声波传播时间法测定流体的流量的方法中,根据超声信号通过测量部的传播时间来确定流速和流体的流速。 为了考虑超声波转换器的传输功能的变化,该变化作为测量变量的漂移,测量部分的传输功能至少大约确定并且至少一个超声波传播时间被校正 借助于从发送功能的组渡越时间确定的校正值。

    Model network of a nonlinear circuitry
    8.
    发明授权
    Model network of a nonlinear circuitry 有权
    非线性电路的模型网络

    公开(公告)号:US07561857B2

    公开(公告)日:2009-07-14

    申请号:US11512635

    申请日:2006-08-30

    IPC分类号: H04B17/00

    CPC分类号: H03F1/3258

    摘要: A model network of a nonlinear circuitry includes one or more static nonlinear elements and a plurality of linear filters with transfer functions. A method for determining the model network includes performing an input amplitude-to-output amplitude measurement of the nonlinear circuitry and performing an input amplitude-to-output phase measurement of the nonlinear circuitry. The transfer functions are calculated on the basis of results of the input amplitude-to-output amplitude measurement and input amplitude-to-output phase measurement.

    摘要翻译: 非线性电路的模型网络包括一个或多个静态非线性元件和具有传递函数的多个线性滤波器。 用于确定模型网络的方法包括执行非线性电路的输入幅度 - 输出幅度测量并且执行非线性电路的输入幅度 - 输出相位测量。 基于输入幅度 - 输出幅度测量和输入幅度 - 输出相位测量的结果计算传递函数。

    Housing for microphone arrays and multi-sensor devices for their size optimization
    9.
    发明授权
    Housing for microphone arrays and multi-sensor devices for their size optimization 有权
    适用于麦克风阵列和多传感器设备的尺寸优化

    公开(公告)号:US08767993B2

    公开(公告)日:2014-07-01

    申请号:US12742277

    申请日:2008-11-10

    摘要: A sensor system is located in an environment composed of a first medium, where waves propagate with a first phase velocity, the sensor system including at least one main enclosure and a sensor array with at least two sensors, said sensor array being arranged inside the main enclosure, wherein the space inside the main enclosure between the sensor array and the inner surface of the main enclosure is filled with a second medium, in which waves propagate with a second phase velocity, the second phase velocity being different from the first velocity.

    摘要翻译: 传感器系统位于由第一介质组成的环境中,其中波以第一相速度传播,传感器系统包括至少一个主外壳和具有至少两个传感器的传感器阵列,所述传感器阵列布置在主体内 其中所述主外壳内的所述主外壳内的空间在所述传感器阵列和所述主机壳的内表面之间填充有第二介质,其中波以第二相速度传播,所述第二相速度与所述第一速度不同。

    Joint position-pitch estimation of acoustic sources for their tracking and separation
    10.
    发明授权
    Joint position-pitch estimation of acoustic sources for their tracking and separation 有权
    用于跟踪和分离的声源的关节位置 - 俯仰估计

    公开(公告)号:US08107321B2

    公开(公告)日:2012-01-31

    申请号:US12602640

    申请日:2007-06-01

    IPC分类号: G01S3/80

    摘要: The invention relates to a method for localizing and tracking acoustic sources (101) in a multi-source environment, comprising the steps of recording audio-signals (103) of at least one acoustic source (101) with at least two recording means (104, 105), creating a two- or multi-channel recording signal, partitioning said recording signal into frames of predefined length (N), calculating for each frame a cross-correlation function as a function of discrete time-lag values (τ) for channel pairs (106, 107) of the recording signal, evaluating the cross-correlation function by calculating a sampling function depending on a pitch parameter (f0) and at least one spatial parameter (φ0), the sampling function assigning a value to every point of a multidimensional space being spanned by the pitch-parameter and the spatial parameters, and identifying peaks in said multidimensional space with respective acoustic sources in the multi-source environment.

    摘要翻译: 本发明涉及一种用于在多源环境中定位和跟踪声源(101)的方法,包括以下步骤:用至少两个记录装置(104)记录至少一个声源(101)的音频信号(103) ,105),创建两通道或多通道记录信号,将所述记录信号划分成预定长度(N)的帧,为每帧计算作为离散时间滞后值(τ)的函数的互相关函数 信道对(106,107),通过计算取决于音调参数(f0)和至少一个空间参数(&phgr; 0)的采样函数来评估互相关函数,该采样函数将值分配给 通过音调参数和空间参数跨越多维空间的每个点,以及在多源环境中用相应声源识别所述多​​维空间中的峰值。