Demodulation method and apparatus
    1.
    发明授权
    Demodulation method and apparatus 有权
    解调方法和装置

    公开(公告)号:US07482862B2

    公开(公告)日:2009-01-27

    申请号:US11729843

    申请日:2007-03-30

    IPC分类号: H03D1/00 H03D3/00 H04L27/14

    摘要: A demodulation circuit and method are provided. The demodulation circuit includes a transformation circuit which is configured to transform the received signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and a processing circuit which is configured to process the modified signal representation to demodulate the received signal based on the uniform representation. The method includes transforming the signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and processing the modified signal representation to demodulate the signal based on the uniform representation.

    摘要翻译: 提供了解调电路和方法。 解调电路包括变换电路,其被配置为将接收到的信号变换为修改的信号表示,其中将幅度变化信息和频率变化信息都转换为均匀表示; 以及处理电路,被配置为处理所述修改的信号表示以基于所述均匀表示来解调所接收的信号。 该方法包括将信号变换成修改的信号表示,其中幅度变化信息和频率变化信息均被转换为均匀表示; 以及处理所述修改的信号表示以基于所述均匀表示来解调所述信号。

    Demodulation method and apparatus
    2.
    发明申请
    Demodulation method and apparatus 有权
    解调方法和装置

    公开(公告)号:US20070230624A1

    公开(公告)日:2007-10-04

    申请号:US11729843

    申请日:2007-03-30

    IPC分类号: H04L27/00 H03D3/00

    摘要: A demodulation circuit and method are provided. The demodulation circuit includes a transformation circuit which is configured to transform the received signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and a processing circuit which is configured to process the modified signal representation to demodulate the received signal based on the uniform representation. The method includes transforming the signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and processing the modified signal representation to demodulate the signal based on the uniform representation.

    摘要翻译: 提供了解调电路和方法。 解调电路包括变换电路,其被配置为将接收到的信号变换为修改的信号表示,其中将幅度变化信息和频率变化信息都转换为均匀表示; 以及处理电路,被配置为处理所述修改的信号表示以基于所述均匀表示来解调所接收的信号。 该方法包括将信号变换成修改的信号表示,其中幅度变化信息和频率变化信息均被转换为均匀表示; 以及处理所述修改的信号表示以基于所述均匀表示来解调所述信号。

    Circuit and method for suppressing interference components in received signal
    3.
    发明授权
    Circuit and method for suppressing interference components in received signal 有权
    用于抑制接收信号中干扰分量的电路和方法

    公开(公告)号:US07817756B2

    公开(公告)日:2010-10-19

    申请号:US11723675

    申请日:2007-03-21

    IPC分类号: H04B1/10

    摘要: A circuit and method for suppressing interference components in a received signal are provided. The circuit includes an adaptive filter configured to process a first quantity of digital signal samples per unit time when the adaptive filter is operating in a first mode, and a second quantity of digital signal samples per unit time when operating in a second mode, wherein the first quantity is less than the second quantity. The method includes implementing an adaptive filter configured to operate in an adaptive mode and in a second mode having a reduced adaptability compared to the adaptive mode; operating the adaptive filter in the adaptive mode to process a first quantity of digital signal samples per unit time; and operating the adaptive filter in the second mode to process a second quantity of digital signal samples per unit time; wherein the first quantity is less than the second quantity.

    摘要翻译: 提供一种用于抑制接收信号中的干扰成分的电路和方法。 该电路包括自适应滤波器,其被配置为当自适应滤波器以第一模式操作时处理每单位时间的第一数量的数字信号样本,以及当以第二模式操作时,每单位时间的第二数量的数字信号样本,其中 第一数量小于第二数量。 该方法包括实现自适应滤波器,其被配置为以与自适应模式相比具有降低的适应性的自适应模式和第二模式操作; 在自适应模式下操作自适应滤波器以处理每单位时间的第一数量的数字信号样本; 以及在所述第二模式中操作所述自适应滤波器以处理每单位时间的第二数量的数字信号样本; 其中所述第一数量小于所述第二数量。

    Circuit and method for suppressing interference components in received signal
    4.
    发明申请
    Circuit and method for suppressing interference components in received signal 有权
    用于抑制接收信号中干扰分量的电路和方法

    公开(公告)号:US20080013657A1

    公开(公告)日:2008-01-17

    申请号:US11723675

    申请日:2007-03-21

    IPC分类号: H04B1/10 H03D1/24

    摘要: A circuit and method for suppressing interference components in a received signal are provided. The circuit includes an adaptive filter configured to process a first quantity of digital signal samples per unit time when the adaptive filter is operating in a first mode, and a second quantity of digital signal samples per unit time when operating in a second mode, wherein the first quantity is less than the second quantity. The method includes implementing an adaptive filter configured to operate in an adaptive mode and in a second mode having a reduced adaptability compared to the adaptive mode; operating the adaptive filter in the adaptive mode to process a first quantity of digital signal samples per unit time; and operating the adaptive filter in the second mode to process a second quantity of digital signal samples per unit time; wherein the first quantity is less than the second quantity.

    摘要翻译: 提供一种用于抑制接收信号中的干扰成分的电路和方法。 该电路包括自适应滤波器,其被配置为当自适应滤波器以第一模式操作时处理每单位时间的第一数量的数字信号样本,以及当以第二模式操作时,每单位时间的第二数量的数字信号样本,其中 第一数量小于第二数量。 该方法包括实现自适应滤波器,其被配置为以与自适应模式相比具有降低的适应性的自适应模式和第二模式操作; 在自适应模式下操作自适应滤波器以处理每单位时间的第一数量的数字信号样本; 以及在所述第二模式中操作所述自适应滤波器以处理每单位时间的第二数量的数字信号样本; 其中所述第一数量小于所述第二数量。

    Powerline control interface in CENELEC (EU) A-D bands frequency and amplitude modulation transmitter
    5.
    发明授权
    Powerline control interface in CENELEC (EU) A-D bands frequency and amplitude modulation transmitter 有权
    CENELEC(EU)A-D频段和幅度调制发射机的电力线控制接口

    公开(公告)号:US08699586B2

    公开(公告)日:2014-04-15

    申请号:US13492797

    申请日:2012-06-08

    IPC分类号: H04B3/54

    摘要: An apparatus is disclosed where a Powerline interface is used to transmit data into the powerline grid network, where the powerline interface is pulling the required transmit energy from the power grid network, where the powerline interface is transmitting data using standard narrow band modulation such as ASK, FSK, S-FSK, where the transmitted data are passed on to the powerline interface by the use of an “Input signal” adapation stage, where an error calculation and a comparison to a “Triangle” signal is performed to create a command signal used to enable the transmission of data by providing enough voltage to polarize the Transistor (i.e: MOS FET) used in the powerline path.

    摘要翻译: 公开了一种装置,其中使用电力线接口将数据传输到电力线网格网络中,其中电力线接口从电网网络拉取所需的发射能量,其中电力线接口使用诸如ASK的标准窄带调制来发送数据 ,FSK,S-FSK,其中通过使用“输入信号”适配级将发送的数据传递到电力线接口,其中执行误差计算和与“三角形”信号的比较以产生命令信号 用于通过提供足够的电压来极化用于电力线路径中的晶体管(即:MOS FET)来实现数据传输。

    Powerline Control Interface in Photovoltaic Environment for Frequency and Amplitude Modulation Transmitter
    6.
    发明申请
    Powerline Control Interface in Photovoltaic Environment for Frequency and Amplitude Modulation Transmitter 有权
    用于频率和幅度调制发射机的光伏环境中的电力线控制接口

    公开(公告)号:US20120314747A1

    公开(公告)日:2012-12-13

    申请号:US13492798

    申请日:2012-06-08

    摘要: An apparatus is disclosed where a Maximum power point tracking (MPPT) circuit is used to transmit data into the photovoltaic network, where the PLC communication is pulling the required transmit energy from the photovoltaic network, where the transmit chain is using the MPPT transistor of the photovoltaic DC Optimizer, where the transmit chain is transmitting data using Standard modulation such as ASK, FSK, S-FSK, BPSK, OFDM, etc. . . . where the transmitted data are passed on to the powerline network by the use of an “Input signal” adaptation stage, where signals summation is performed to create a command signal used to control the transmission of data by providing enough voltage to polarize the Transistor (i.e: MOS FET) used in the powerline path.

    摘要翻译: 公开了一种装置,其中使用最大功率点跟踪(MPPT)电路将数据传输到光伏网络中,其中PLC通信正在从光伏网络拉取所需的发射能量,其中发射链使用MPPT晶体管 光伏DC优化器,其中发射链使用诸如ASK,FSK,S-FSK,BPSK,OFDM等的标准调制来发送数据。 。 。 其中通过使用输入信号适配级将传输的数据传递到电力线网络,其中执行信号求和以产生用于通过提供足够的电压来极化晶体管(即:MOS)来创建用于控制数据传输的命令信号 FET)用于电力线路径。

    Continuous speech processing using heterogeneous and adapted transfer function
    7.
    发明授权
    Continuous speech processing using heterogeneous and adapted transfer function 有权
    使用异构和适应传递函数的连续语音处理

    公开(公告)号:US07693712B2

    公开(公告)日:2010-04-06

    申请号:US11389286

    申请日:2006-03-27

    IPC分类号: G10L21/02 G10L15/20

    摘要: A pre-processing system of a signal of interest in an automatic speech recognition system in a vehicle, includes an acoustic sensor to sense the signal of interest, a non acoustic sensor to sense a non acoustic noise signal, a pre-processing unit of the signal of interest, comprising a processing section of coherent frequency bands signals for suppressing the noise from the received signal, a processing section of non coherent frequency bands signals, comprising transfer function estimation device of a signal through the vehicle cabin, and a methods selection section for determining the coherence properties of the received signal, and for selecting the processing section of coherent frequency bands signals or the processing section of non coherent frequency bands signals depending on the result of the properties of the received signal.

    摘要翻译: 车辆中的自动语音识别系统中感兴趣的信号的预处理系统包括用于感测感兴趣的信号的声学传感器,用于感测非声学噪声信号的非声学传感器,用于检测非声学噪声信号的预处理单元 信号,包括用于抑制来自接收信号的噪声的相干频带信号的处理部分,包括通过车厢的信号的传递函数估计装置的非相干频带信号的处理部分和方法选择部分 用于确定接收信号的相干属性,并且用于根据接收信号的性质的结果来选择相干频带信号的处理部分或非相干频带信号的处理部分。

    Suppressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal
    8.
    发明授权
    Suppressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal 有权
    抑制无线接收的干扰和与处理频移键控信号相关的改进

    公开(公告)号:US07957496B2

    公开(公告)日:2011-06-07

    申请号:US12610444

    申请日:2009-11-02

    IPC分类号: H04B1/10

    摘要: A communications receiver may include an adaptive filter unit for removing coherent interference components from a received signal. In the absence of a signal of interest, the filter may adapt dynamically to remove current interference components. When a signal of interest is detected, the filter may be controlled to stop (or at least reduce) its adaptation, to prevent removal of the signal of interest. The received signal may be down-converted to a complex baseband by conditioning circuitry. A detector may detect the signal of interest, and control the filter. Autocorrelation may be used to estimate a characteristic of the signal of interest in the complex baseband. The detector may include hysteresis to react quickly to the start of signal of interest, and more slowly to an end of the signal of interest. The signal of interest may be a frequency shift keyed (FSK) signal. A demodulator may demodulate FSK components based on the autocorrelation result. The characteristic of the signal of interest used for detection and/or demodulation may be a directional characteristic of a vector representing the complex baseband signal in complex space.

    摘要翻译: 通信接收机可以包括用于从接收信号中去除相干干扰分量的自适应滤波器单元。 在没有感兴趣的信号的情况下,滤波器可以动态地适应以去除电流干扰分量。 当检测到感兴趣的信号时,可以控制滤波器以停止(或至少减小)其适配,以防止感兴趣的信号的去除。 接收的信号可以通过调节电路被下变频成复基带。 检测器可以检测感兴趣的信号,并控制滤波器。 可以使用自相关来估计复基带中的感兴趣信号的特性。 检测器可以包括滞后以快速响应于感兴趣的信号的开始,并且更慢地到感兴趣的信号的结束。 感兴趣的信号可以是频移键控(FSK)信号。 解调器可以基于自相关结果来解调FSK分量。 用于检测和/或解调的感兴趣信号的特征可以是表示复杂空间中的复基带信号的矢量的方向特性。

    Supressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal
    9.
    发明申请
    Supressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal 失效
    抑制无线接收的干扰以及与处理频移键控信号相关的改进

    公开(公告)号:US20070201588A1

    公开(公告)日:2007-08-30

    申请号:US11374306

    申请日:2004-06-29

    IPC分类号: H03D1/04

    摘要: A communications receiver may include an adaptive filter unit for removing coherent interference components from a received signal. In the absence of a signal of interest, the filter may adapt dynamically to remove current interference components. When a signal of interest is detected, the filter may be controlled to stop (or at least reduce) its adaptation, to prevent removal of the signal of interest. The received signal may be down-converted to a complex baseband by conditioning circuitry. A detector may detect the signal of interest, and control the filter. Autocorrelation may be used to estimate a characteristic of the signal of interest in the complex baseband. The detector may include hysteresis to react quickly to the start of signal of interest, and more slowly to an end of the signal of interest. The signal of interest may be a frequency shift keyed (FSK) signal. A demodulator may demodulate FSK components based on the autocorrelation result. The characteristic of the signal of interest used for detection and/or demodulation may be a directional characteristic of a vector representing the complex baseband signal in complex space.

    摘要翻译: 通信接收机可以包括用于从接收信号中去除相干干扰分量的自适应滤波器单元。 在没有感兴趣的信号的情况下,滤波器可以动态地适应以去除电流干扰分量。 当检测到感兴趣的信号时,可以控制滤波器以停止(或至少减小)其适配,以防止感兴趣的信号的去除。 接收的信号可以通过调节电路被下变频成复基带。 检测器可以检测感兴趣的信号,并控制滤波器。 可以使用自相关来估计复基带中的感兴趣信号的特性。 检测器可以包括滞后以快速响应于感兴趣的信号的开始,并且更慢地到感兴趣的信号的结束。 感兴趣的信号可以是频移键控(FSK)信号。 解调器可以基于自相关结果来解调FSK分量。 用于检测和/或解调的感兴趣信号的特征可以是表示复杂空间中的复基带信号的矢量的方向特性。

    Powerline control interface in photovoltaic environment for frequency and amplitude modulation transmitter
    10.
    发明授权
    Powerline control interface in photovoltaic environment for frequency and amplitude modulation transmitter 有权
    光伏环境中的电力线控制接口用于频率和幅度调制发射机

    公开(公告)号:US08923373B2

    公开(公告)日:2014-12-30

    申请号:US13492798

    申请日:2012-06-08

    IPC分类号: H04B17/00 H04L25/49 H04B3/54

    摘要: An apparatus is disclosed where a Maximum power point tracking (MPPT) circuit is used to transmit data into the photovoltaic network, where the PLC communication is pulling the required transmit energy from the photovoltaic network, where the transmit chain is using the MPPT transistor of the photovoltaic DC Optimizer, where the transmit chain is transmitting data using Standard modulation such as ASK, FSK, S-FSK, BPSK, OFDM, etc. . . . where the transmitted data are passed on to the powerline network by the use of an “Input signal” adaptation stage, where signals summation is performed to create a command signal used to control the transmission of data by providing enough voltage to polarize the Transistor (i.e: MOS FET) used in the powerline path.

    摘要翻译: 公开了一种装置,其中使用最大功率点跟踪(MPPT)电路将数据传输到光伏网络中,其中PLC通信正在从光伏网络拉取所需的发射能量,其中发射链使用MPPT晶体管 光伏DC优化器,其中发射链使用诸如ASK,FSK,S-FSK,BPSK,OFDM等的标准调制来发送数据。 。 。 其中通过使用“输入信号”适配级将发送的数据传递到电力线网络,其中执行信号求和以产生用于通过提供足够的电压来极化晶体管的数据传输来创建用于控制数据传输的命令信号(即 :MOS FET)用于电力线路径。