Active noise control system
    1.
    发明授权
    Active noise control system 失效
    主动噪声控制系统

    公开(公告)号:US5359662A

    公开(公告)日:1994-10-25

    申请号:US875775

    申请日:1992-04-29

    IPC分类号: G10K11/178 G10K11/16

    摘要: A active noise control system is described for attenuating an undesirable noise that containing multiple noise components having different frequencies. The system includes a configuration of signal generators and corresponding paired adaptive filters. Each signal generator produces a generator output signal containing one or more sinusoidal signal components, with each signal component having a frequency corresponding to a respective one of the noise frequency components. Separate signal generators are used to produce those sinusoidal components having frequencies corresponding to noise component that are adjacent with respect to their frequencies. Each adaptive filter operates on the generator output signal produced by its corresponding paired signal generator in accordance with its filtering characteristics to provide a respective filtered output signal. The filtered output signals from each adaptive filter are summed to obtain an output canceling signal, which drives an actuator to produce output canceling waves that are superpositioned with the undesirable noise. An error sensor measures the level of residual noise resulting from the superposition of the canceling waves and the undesirable noise, and provides an error signal for adapting the characteristics of the adaptive filters so as to minimize the level of residual noise.

    摘要翻译: 描述了一种主动噪声控制系统,用于衰减包含具有不同频率的多个噪声分量的不期望的噪声。 该系统包括信号发生器和相应的配对自适应滤波器的配置。 每个信号发生器产生包含一个或多个正弦信号分量的发生器输出信号,每个信号分量具有对应于噪声频率分量中的相应一个的频率。 单独的信号发生器用于产生具有对应于相对于其频率相邻的噪声分量的频率的那些正弦分量。 每个自适应滤波器根据其对应的配对信号发生器根据其滤波特性产生的发生器输出信号进行操作,以提供相应的滤波输出信号。 将来自每个自适应滤波器的经滤波的输出信号相加以获得输出抵消信号,其驱动致动器以产生与不期望的噪声叠加的输出消除波。 误差传感器测量由消除波的叠加和不期望的噪声引起的残余噪声的水平,并且提供用于适应自适应滤波器的特性的误差信号,以便使残余噪声的水平最小化。

    WIRELESS BASE STATION AND METHOD FOR RECEIVING SIGNAL OF WIRELESS BASE STATION
    2.
    发明申请
    WIRELESS BASE STATION AND METHOD FOR RECEIVING SIGNAL OF WIRELESS BASE STATION 审中-公开
    无线基站接收无线基站信号的方法

    公开(公告)号:US20120100801A1

    公开(公告)日:2012-04-26

    申请号:US13339889

    申请日:2011-12-29

    IPC分类号: H04W88/04

    摘要: Embodiments of the present disclosure disclose a wireless base station and a method for receiving a signal of the wireless base station. The wireless base station includes a base station indoor apparatus and a base station outdoor apparatus. The base station outdoor apparatus includes an adapter, a terrestrial service antenna, and a satellite antenna. The terrestrial service antenna is a microwave transmission antenna or a wireless access antenna. The base station indoor apparatus includes a satellite signal processing module configured to obtain a satellite service signal by decoding on a satellite radio-frequency signal received by the satellite antenna. The satellite antenna and the terrestrial service antenna are connected to the adapter. The adapter is configured to couple a signal received by the satellite antenna and a signal received by the terrestrial service antenna, and transfers a coupled signal to the base station indoor apparatus through a first data line.

    摘要翻译: 本公开的实施例公开了一种用于接收无线基站的信号的无线基站和方法。 无线基站包括基站室内机和基站室外机。 基站室外机包括适配器,地面业务天线和卫星天线。 地面业务天线是微波发射天线或无线接入天线。 基站室内机包括:卫星信号处理模块,被配置为通过对由卫星天线接收的卫星射频信号进行解码来获得卫星服务信号。 卫星天线和地面业务天线连接到适配器。 适配器被配置为耦合由卫星天线接收的信号和由地面业务天线接收的信号,并且通过第一数据线将耦合信号传送到基站室内装置。

    Synthesis of polycyclic procyanidins
    3.
    发明授权
    Synthesis of polycyclic procyanidins 有权
    多环原花青素的合成

    公开(公告)号:US08138358B2

    公开(公告)日:2012-03-20

    申请号:US12563909

    申请日:2009-09-21

    IPC分类号: C07D493/18

    CPC分类号: C07D493/18

    摘要: The invention provides compounds that are A-type procyanidins. The compounds can be prepared by reacting flavylium salts with catechins or analogs thereof, for example, under anhydrous conditions in alcohol.

    摘要翻译: 本发明提供了A型原花青素的化合物。 这些化合物可以通过使黄烷基盐与儿茶素或其类似物反应,例如在无水条件下在醇中反应来制备。

    SYNTHESIS OF POLYCYCLIC PROCYANIDINS
    4.
    发明申请
    SYNTHESIS OF POLYCYCLIC PROCYANIDINS 有权
    多环芳烃的合成

    公开(公告)号:US20070173543A1

    公开(公告)日:2007-07-26

    申请号:US11275756

    申请日:2006-01-26

    申请人: George Kraus Yi Yuan

    发明人: George Kraus Yi Yuan

    IPC分类号: A61K31/353 C07D493/14

    CPC分类号: C07D493/18

    摘要: A method for preparing A-type procyanidins is provided by reacting flavylium salts with catechins and analogs thereof, under anhydrous conditions in alcohol.

    摘要翻译: 通过在无水条件下在醇中将黄烷鎓盐与儿茶素类及其类似物反应来提供A型原花青素的方法。

    SYNTHESIS OF POLYCYCLIC PROCYANIDINS
    5.
    发明申请
    SYNTHESIS OF POLYCYCLIC PROCYANIDINS 有权
    多环芳烃的合成

    公开(公告)号:US20100010240A1

    公开(公告)日:2010-01-14

    申请号:US12563909

    申请日:2009-09-21

    IPC分类号: C07D493/18 C07D493/08

    CPC分类号: C07D493/18

    摘要: The invention provides compounds that are A-type procyanidins. The compounds can be prepared by reacting flavylium salts with catechins or analogs thereof, for example, under anhydrous conditions in alcohol.

    摘要翻译: 本发明提供了A型原花青素的化合物。 这些化合物可以通过使黄烷基盐与儿茶素或其类似物反应,例如在无水条件下在醇中反应来制备。

    Active noise control system for attenuating engine generated noise
    6.
    发明授权
    Active noise control system for attenuating engine generated noise 失效
    主动噪声控制系统,用于衰减发动机产生的噪音

    公开(公告)号:US5321759A

    公开(公告)日:1994-06-14

    申请号:US875897

    申请日:1992-04-29

    申请人: Yi Yuan

    发明人: Yi Yuan

    摘要: An active noise control (ANC) system is disclosed for attenuating engine generated noise that contains at least one sinusoidal noise component having an amplitude and frequency that vary with changes in engine rotational speed. The ANC system includes a means for generating at least one generator output signal that contains one or more sinusoidal signal components, where the frequency of each signal component corresponds to the frequency of a respective noise component. A separate control signal having an amplitude that varies with engine rotational speed is generated to correspond with each generator output signal. Each generator output signal is then multiplied by its respective control signal to produce a corresponding filter input signal. Each filter input signal passes to a respective adaptive filter, where it is filtered to produce a corresponding filter output signal according to the adjustable filtering characteristics of the adaptive filter. Noise canceling waves are generated by a noise canceling actuator in response to each filter output signal, and the canceling waves are superimposed with the undesirable noise generated by the engine. The level of residual noise resulting from this superposition is sensed, and an error signal is developed to represent the residual noise level. The filtering characteristics of each adaptive filter are adaptively adjusted based upon the error signal to minimize the residual noise level. In the preferred embodiment, each control signal has its amplitude determined in accordance with a respective predetermined function based upon the sensed engine rotational speed, and each predetermined function is correlative of the amplitude behavior of those noise components corresponding to the signal components contained in the generator output signal that is multiplied by the respective control signal.

    摘要翻译: 公开了一种用于衰减发动机产生的噪声的有源噪声控制(ANC)系统,其包含随着发动机转速的变化而变化的振幅和频率的至少一个正弦噪声分量。 ANC系统包括用于产生包含一个或多个正弦信号分量的至少一个发生器输出信号的装置,其中每个信号分量的频率对应于各个噪声分量的频率。 产生具有随着发动机转速而变化的振幅的单独的控制信号,以对应于每个发电机输出信号。 然后将每个发生器输出信号乘以其相应的控制信号以产生相应的滤波器输入信号。 每个滤波器输​​入信号传递到相应的自适应滤波器,其中它被滤波以根据自适应滤波器的可调滤波特性产生相应的滤波器输出信号。 噪声消除波由响应于每个滤波器输​​出信号的噪声消除致动器产生,并且抵消波与由发动机产生的不期望的噪声叠加。 感测到由该叠加产生的残余噪声的电平,并且产生误差信号以表示残余噪声电平。 基于误差信号自适应地调整每个自适应滤波器的滤波特性,以使残余噪声水平最小化。 在优选实施例中,每个控制信号具有根据感测的发动机转速根据相应的预定功能确定的振幅,并且每个预定功能与对应于包含在发电机中的信号分量的那些噪声分量的振幅特性相关 输出信号乘以相应的控制信号。

    Synthesis of polycyclic procyanidins
    7.
    发明授权
    Synthesis of polycyclic procyanidins 有权
    多环原花青素的合成

    公开(公告)号:US08415489B2

    公开(公告)日:2013-04-09

    申请号:US13292812

    申请日:2011-11-09

    IPC分类号: C07D407/14

    CPC分类号: C07D493/18

    摘要: The invention provides compounds that are A-type procyanidins. The compounds can be prepared by reacting flavylium salts with catechins or analogs thereof, for example, under anhydrous conditions in alcohol.

    摘要翻译: 本发明提供了A型原花青素的化合物。 这些化合物可以通过使黄烷基盐与儿茶素或其类似物反应,例如在无水条件下在醇中反应来制备。

    SYNTHESIS OF POLYCYCLIC PROCYANIDINS
    8.
    发明申请
    SYNTHESIS OF POLYCYCLIC PROCYANIDINS 有权
    多环芳烃的合成

    公开(公告)号:US20120059175A1

    公开(公告)日:2012-03-08

    申请号:US13292812

    申请日:2011-11-09

    IPC分类号: C07D493/16 C07D493/06

    CPC分类号: C07D493/18

    摘要: The invention provides compounds that are A-type procyanidins. The compounds can be prepared by reacting flavylium salts with catechins or analogs thereof, for example, under anhydrous conditions in alcohol.

    摘要翻译: 本发明提供了A型原花青素的化合物。 这些化合物可以通过使黄烷基盐与儿茶素或其类似物反应,例如在无水条件下在醇中反应来制备。

    Implementing automatic access control list validation using automatic categorization of unstructured text
    9.
    发明授权
    Implementing automatic access control list validation using automatic categorization of unstructured text 有权
    使用非结构化文本的自动分类实现自动访问控制列表验证

    公开(公告)号:US08739279B2

    公开(公告)日:2014-05-27

    申请号:US13007867

    申请日:2011-01-17

    CPC分类号: G06F21/562

    摘要: A method, system and computer program product are provided for implementing automatic access control list validation using automatic categorization of unstructured text. Automatic categorization of unstructured text is performed on a plurality of documents of an access control list for determining an average term vector. Each of the documents is scored against the average term vector to identify a dissimilar document, flagged as a possible security risk. Automatic categorization of unstructured text is performed on user information of a plurality of members of a candidate access control list for determining a typical term vector. A similarity score is determined by user information and the typical term vector, members of an access control list that are dissimilar from other members of the access control list are identified.

    摘要翻译: 提供了一种方法,系统和计算机程序产品,用于使用非结构化文本的自动分类实现自动访问控制列表验证。 对用于确定平均项目向量的访问控制列表的多个文档执行非结构化文本的自动分类。 每个文档都被对准平均术语向量,以识别不同的文档,标记为可能的安全风险。 对候选访问控制列表的多个成员的用户信息执行非结构化文本的自动分类,以确定典型的术语向量。 相似性得分由用户信息确定,并且识别与访问控制列表的其他成员不相似的访问控制列表的典型术语向量的成员。

    Synthesis of polycyclic procyanidins
    10.
    发明授权
    Synthesis of polycyclic procyanidins 有权
    多环原花青素的合成

    公开(公告)号:US07615649B2

    公开(公告)日:2009-11-10

    申请号:US11275756

    申请日:2006-01-26

    IPC分类号: C07D493/18 C07D493/08

    CPC分类号: C07D493/18

    摘要: A method for preparing A-type procyanidins is provided by reacting flavylium salts with catechins and analogs thereof, under anhydrous conditions in alcohol.

    摘要翻译: 通过在无水条件下在醇中将黄烷鎓盐与儿茶素类及其类似物反应来提供A型原花青素的方法。