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    Method and apparatus for improved active sonar using singular value decomposition filtering
    1.
    发明授权
    Method and apparatus for improved active sonar using singular value decomposition filtering 失效
    使用奇异值分解滤波改进主动声纳的方法和装置

    公开(公告)号：US07929375B2

    公开(公告)日：2011-04-19

    申请号：US11768361

    申请日：2007-06-26

    申请人： Albert H. Nuttall ,  Richard A. Katz

    发明人： Albert H. Nuttall ,  Richard A. Katz

    IPC分类号： G01S15/00

    CPC分类号： G01S15/101 ,  G01S15/582

    摘要： The invention is a method for improved active sonar using a singular value decomposition filtering and a Volterra-Hermite Basis Expansion to model real active sonar measurements. The fitting model minimizes the sum of the squared errors between a measured channel response, z(t), and model response, y(t), which is a fitted Volterra Series solution. The model requires as input an excitation waveform, x(t), to which is fitted the model response, y(t). A contracted broadband cross-ambiguity function is used to correct the excitation waveform for Doppler and range effects. Once completed, the modeled response can be used to determine the linearity or non-linearity of the channel effects. Appropriate measures can be utilized to reduce these effects on the measured channel response.

    摘要翻译： 本发明是使用奇异值分解滤波和Volterra-Hermite Basis扩展来改进主动声纳的方法，以模拟实际的主动声纳测量。 拟合模型最小化测量的通道响应z（t）和模型响应y（t）之间的平方误差之和，这是一个适合的Volterra系列解决方案。 该模型需要作为输入的激励波形x（t），其中拟合模型响应y（t）。 使用合同的宽带交叉模糊函数来校正多普勒和范围效应的激励波形。 一旦完成，建模的响应可以用于确定通道效应的线性或非线性。 可以采用适当的措施来减少对测量的通道响应的影响。

    Signal processing fault detection system
    2.
    发明授权
    Signal processing fault detection system 失效
    信号处理故障检测系统

    公开(公告)号：US07620503B2

    公开(公告)日：2009-11-17

    申请号：US11777564

    申请日：2007-07-13

    申请人： Derke R. Hughes ,  Richard A. Katz ,  Albert H. Nuttall

    发明人： Derke R. Hughes ,  Richard A. Katz ,  Albert H. Nuttall

    IPC分类号： G01B3/52

    CPC分类号： G01M5/0033 ,  G01M5/0066

    摘要： A fault detection system designed to evaluate the structural integrity of a material employs an array of sensors disposed over the material being evaluated. The sensors detect vibrations in the material and the sensor signals are fed to a data processor. The processor employs a method to analyze the linear and nonlinear characteristics of the sensor signals and then determines whether to proceed with a linear signal processing analysis or a nonlinear signal processing analysis of the sensor signals. Once the analysis is completed, the results are compared to baseline results to determine what if any divergence exists between the results and the baseline results. A significant divergence indicates a potential material failure. The fault detection system will indicate such a potential failure through a visual alarm on a graphical user interface.

    摘要翻译： 设计用于评估材料的结构完整性的故障检测系统使用设置在待评估材料上的传感器阵列。 传感器检测材料中的振动，并将传感器信号馈送到数据处理器。 处理器采用一种方法来分析传感器信号的线性和非线性特性，然后确定是否对传感器信号进行线性信号处理分析或非线性信号处理分析。 分析完成后，将结果与基线结果进行比较，以确定结果与基线结果之间是否存在分歧。 显着的分歧表明潜在的物质故障。 故障检测系统将通过图形用户界面上的视觉报警来指示这种潜在故障。

    Chimeric enzyme for promoting targeted integration of foreign DNA into a host genome
    4.
    发明授权
    Chimeric enzyme for promoting targeted integration of foreign DNA into a host genome 失效
    用于促进外源DNA靶向整合到宿主基因组中的嵌合酶

    公开(公告)号：US6150511A

    公开(公告)日：2000-11-21

    申请号：US437317

    申请日：1995-05-09

    申请人： Richard A. Katz ,  Anna Marie Skalka

    发明人： Richard A. Katz ,  Anna Marie Skalka

    IPC分类号： C07K14/245 ,  C12N9/22 ,  C12N15/867 ,  C07H21/02 ,  C07H21/04

    CPC分类号： C12N15/86 ,  C07K14/245 ,  C12N9/22 ,  C07K2319/00 ,  C12N2740/11022 ,  C12N2740/11043

    摘要： The present invention provides novel chimeric and fusion proteins useful for facilitating site-specific integration of foreign DNA into a host genome. The chimeric enzymes of the invention comprise a DNA binding moiety fused to a retroviral integrase moiety, preferably at the precise N- or C-terminus. Nucleic acids encoding these fusion proteins can be incorporated into standard retroviral vectors, or can be provided as purified proteins. They are capable of exerting the activities of a wildtype retroviral integrase, including processing retroviral DNA termini, nicking double-stranded DNA and integrating a DNA molecule with processed retroviral termini into another DNA strand.

    摘要翻译： 本发明提供了可用于促进外源DNA位点特异性整合到宿主基因组中的新型嵌合和融合蛋白。 本发明的嵌合酶包含与逆转录病毒整合酶部分融合的DNA结合部分，优选在精确的N-或C-末端。 编码这些融合蛋白的核酸可以并入标准的逆转录病毒载体中，或者可以作为纯化的蛋白提供。 它们能够发挥野生型逆转录病毒整合酶的活性，包括加工逆转录病毒DNA末端，切口双链DNA并将DNA分子与经加工的逆转录病毒末端整合到另一条DNA链中。

    Method and system for reducing drag on a body moving through a fluid medium
    5.
    发明授权
    Method and system for reducing drag on a body moving through a fluid medium 失效
    用于减少移动通过流体介质的物体上的阻力的方法和系统

    公开(公告)号：US5365490A

    公开(公告)日：1994-11-15

    申请号：US117512

    申请日：1993-09-02

    申请人： Richard A. Katz

    发明人： Richard A. Katz

    IPC分类号： B64C23/00

    CPC分类号： B64C23/00 ,  B64C2230/02 ,  Y02T50/166

    摘要： A method of detecting the onset of turbulence in connection with a body mng through a fluid medium and of reducing body drag and as well reducing the amount of drag noise radiated from the body. First, the body is supplied with sensors each for generating a signal suitable for measuring amplitude of pressure fluctuations of the medium proximate a region of said sidewall of the body in at least a region of the body in which turbulence is expected to occur. During a reference stage during which the body moves through the fluid medium when it is known that turbulence is occurring around at least a portion of said body, the sensors each generate reference temporal pressure data representing fluctuations in pressure of the fluid medium around said body. In response to reference temporal pressure data generated by sensors in a turbulence zone at which turbulence is occurring and sensors in a transition zone between the turbulence zone and a laminar flow zone, method-of-delay phase portraits are generated for a progression of selected delay intervals. During an operational stage, the signals from the sensors are filtered to generate a portion representing the turbulence due to motion of the body through the medium and a portion representing signals from external acoustic signal sources, and the turbulence signal portion is used to generate signals of appropriate phase which are injected into the medium to reduce the turbulence noise signals and thereby reduce drag on the body due to the medium.

    摘要翻译： 一种检测与通过流体介质移动的物体相关的湍流的发生和减少身体阻力以及减少从身体辐射的阻力噪声的量的方法。 首先，向身体提供传感器，每个传感器用于产生适合于在预期发生湍流的身体的至少一个区域中测量靠近身体的所述侧壁的区域的介质的压力波动的幅度的信号。 在已知在所述身体的至少一部分周围发生湍流的参考阶段期间，身体移动通过流体介质，传感器每个生成表示围绕所述身体的流体介质的压力波动的参考时间压力数据。 响应于在湍流发生的湍流区域中的传感器产生的参考时间压力数据和在湍流区域和层流区域之间的过渡区域中的传感器，产生延迟相位画像以用于所选延迟的进展 间隔 在操作阶段期间，来自传感器的信号被过滤以产生表示由身体通过介质的运动引起的湍流的部分和表示来自外部声信号源的信号的部分，并且湍流信号部分用于产生 注入到介质中以减少湍流噪声信号，从而减少由于介质引起的身体上的阻力的适当相位。

    SIGNAL PROCESSING FAULT DETECTION SYSTEM
    6.
    发明申请
    SIGNAL PROCESSING FAULT DETECTION SYSTEM 失效
    信号处理故障检测系统

    公开(公告)号：US20090016597A1

    公开(公告)日：2009-01-15

    申请号：US11777564

    申请日：2007-07-13

    申请人： DERKE R. HUGHES ,  Richard A. Katz ,  Albert H. Nuttall

    发明人： DERKE R. HUGHES ,  Richard A. Katz ,  Albert H. Nuttall

    IPC分类号： G06K9/00

    CPC分类号： G01M5/0033 ,  G01M5/0066

    摘要： A fault detection system designed to evaluate the structural integrity of a material employs an array of sensors disposed over the material being evaluated. The sensors detect vibrations in the material and the sensor signals are fed to a data processor. The processor employs a method to analyze the linear and nonlinear characteristics of the sensor signals and then determines whether to proceed with a linear signal processing analysis or a nonlinear signal processing analysis of the sensor signals. Once the analysis is completed, the results are compared to baseline results to determine what if any divergence exists between the results and the baseline results. A significant divergence indicates a potential material failure. The fault detection system will indicate such a potential failure through a visual alarm on a graphical user interface.

    摘要翻译： 设计用于评估材料的结构完整性的故障检测系统使用设置在待评估材料上的传感器阵列。 传感器检测材料中的振动，并将传感器信号馈送到数据处理器。 处理器采用一种方法来分析传感器信号的线性和非线性特性，然后确定是否对传感器信号进行线性信号处理分析或非线性信号处理分析。 分析完成后，将结果与基线结果进行比较，以确定结果与基线结果之间是否存在分歧。 显着的分歧表明潜在的物质故障。 故障检测系统将通过图形用户界面上的视觉报警来指示这种潜在故障。

    System and method for processing an underwater acoustic signal by identifying nonlinearity in the underwater acoustic signal
    8.
    发明授权
    System and method for processing an underwater acoustic signal by identifying nonlinearity in the underwater acoustic signal 失效
    通过识别水下声信号中的非线性来处理水下声信号的系统和方法

    公开(公告)号：US06411566B1

    公开(公告)日：2002-06-25

    申请号：US09912655

    申请日：2001-07-25

    申请人： Richard A. Katz ,  Azizul H. Quazi

    发明人： Richard A. Katz ,  Azizul H. Quazi

    IPC分类号： H04B106

    CPC分类号： H04B11/00 ,  G01S3/8006 ,  H04B13/02

    摘要： A nonlinear signal processing system and method is used to identify nonlinearity (e.g., chaos) in underwater acoustic signals, such as sonar signals. The system and method detects the underwater acoustic signal and digitizes the underwater acoustic signal to produce an acoustic time series. The acoustic time series is reconstructed using a phase space embedding algorithm to generate a phase space embedded acoustic signal. A differential radius signal is generated from the phase space embedded acoustic signal using chaotic radius computations and differential radius computations. Thresholds can be detected in the differential radius signal to reveal nonlinear or chaotic events hidden in the underwater acoustic signal.

    摘要翻译： 非线性信号处理系统和方法用于识别水声信号（例如声纳信号）中的非线性（例如混沌）。 该系统和方法检测水声信号，并对水声信号进行数字化，产生声学时间序列。 使用相空间嵌入算法重建声学时间序列，以产生相位空间嵌入声信号。 使用混沌半径计算和微分半径计算从相位空间嵌入声信号产生差分半径信号。 可以在差分半径信号中检测阈值，以揭示隐藏在水下声信号中的非线性或混沌事件。

    Method and apparatus for diagnosing sleep breathing disorders
    9.
    发明授权
    Method and apparatus for diagnosing sleep breathing disorders 失效
    用于诊断睡眠呼吸障碍的方法和装置

    公开(公告)号：US5769084A

    公开(公告)日：1998-06-23

    申请号：US687098

    申请日：1996-07-10

    申请人： Richard A. Katz ,  Michael S. Lawee ,  A. Kief Newman

    发明人： Richard A. Katz ,  Michael S. Lawee ,  A. Kief Newman

    IPC分类号： A61B5/113 ,  A61B5/0472

    CPC分类号： A61B5/4818 ,  A61B5/113

    摘要： An apparatus and method for identifying the timing of the onset of and duion of an event characteristic of sleep breathing disorder. Chaotic processing techniques analyze data concerning one or more cardio-respiratory functions such as nasal air flow, chest wall effort, oxygen saturation, heart rate and heart activity. Excursions of the resulting signal beyond a threshold provide markers for the timing of such an event that is useful in the diagnosis of obstructed sleep apnea and other respiratory dysfunctions.

    摘要翻译： 一种用于识别睡眠呼吸障碍特征的发作时间和持续时间的装置和方法。 混沌处理技术分析关于一种或多种心脏呼吸功能的数据，例如鼻气流量，胸壁力，氧饱和度，心率和心脏活动。 所产生的信号超出阈值的偏移提供了用于诊断阻塞性睡眠呼吸暂停和其他呼吸功能障碍的这种事件的时间的标记。