利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

25 条记录 (耗时 0.018 秒)

    Real-time planner for design
    11.
    发明授权
    Real-time planner for design 有权
    实时规划设计

    公开(公告)号：US06195594B1

    公开(公告)日：2001-02-27

    申请号：US09345172

    申请日：1999-06-30

    申请人： Sunil C. Shah ,  Pradeep Pandey ,  Thorkell Gudmundsson ,  Mark Erickson

    发明人： Sunil C. Shah ,  Pradeep Pandey ,  Thorkell Gudmundsson ,  Mark Erickson

    IPC分类号： G06F1900

    CPC分类号： G05B17/02 ,  G05B15/02 ,  G06F17/50 ,  G06F2217/10 ,  Y02T10/82

    摘要： A method for computer aided design of a product or process. The method includes the steps of representing a computer-aided design activity as a design cycle. The design cycle is then converted into individual iterations of decisions to be made within the design cycle. The individual iterations of decisions are then mapped into a hierarchical structure of influence diagrams. The decision making process of the influence diagrams are performed and data is collected from the decision process that has been performed. The remaining unexecuted decisions and their posterior probabilities are updated based upon the outcomes of the decision process that was most recently performed.

    摘要翻译： 一种用于产品或过程的计算机辅助设计的方法。 该方法包括将计算机辅助设计活动表示为设计周期的步骤。 然后将设计周期转换为在设计周期内进行的决定的单独迭代。 然后将决策的单独迭代映射到影响图的分层结构中。 执行影响图的决策过程，并从执行的决策过程收集数据。 剩下的未执行的决定及其后验概率根据最近执行的决策过程的结果进行更新。

    PRECISE POSITIONING USING A DISTRIBUTED SENSOR NETWORK
    13.
    发明申请
    PRECISE POSITIONING USING A DISTRIBUTED SENSOR NETWORK 有权
    使用分布式传感器网络进行精密定位

    公开(公告)号：US20110156957A1

    公开(公告)日：2011-06-30

    申请号：US12982723

    申请日：2010-12-30

    申请人： James W. WAITE ,  Thorkell Gudmundsson ,  Dimitar Gargov

    发明人： James W. WAITE ,  Thorkell Gudmundsson ,  Dimitar Gargov

    IPC分类号： G01S5/02 ,  G06F19/00

    CPC分类号： G01S5/0252 ,  G01S5/0221 ,  G01S5/0226 ,  G01S5/0247 ,  G01V3/081

    摘要： A method for determining the location and orientation of a transmitter object by measuring a set of complex electromagnetic field magnitude and phase strengths within a space using one or more receivers is provided. The method includes modeling a set of expected complex electromagnetic strengths to estimated position and orientation of the transmitter object. And estimating parameters related to the transmitter object position based on the residual error between the measured set of complex electromagnetic field values and a set of expected electromagnetic field values. Further embodiments include a method as above including a plurality of receivers with known positions within a limited space including the transmitter object. A sensor network including a plurality of receivers to perform the above method is also provided. The receivers may communicate using a wireless channel.

    摘要翻译： 提供了一种用于通过使用一个或多个接收器测量空间内的一组复杂电磁场幅度和相位强度来确定发射器物体的位置和取向的方法。 该方法包括将一组预期的复杂电磁强度建模到发射器对象的估计位置和取向。 并且基于测量的复合电磁场值集合与一组预期电磁场值之间的残差来估计与发射器对象位置有关的参数。 另外的实施例包括如上所述的方法，包括在包括发射器对象的有限空间内具有已知位置的多个接收器。 还提供了包括用于执行上述方法的多个接收器的传感器网络。 接收机可以使用无线信道进行通信。

    Mitigation of Interference and Crosstalk in Communications Systems
    14.
    发明申请
    Mitigation of Interference and Crosstalk in Communications Systems 有权
    通信系统中干扰和串扰的减轻

    公开(公告)号：US20080239937A1

    公开(公告)日：2008-10-02

    申请号：US11694981

    申请日：2007-03-31

    申请人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    发明人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    IPC分类号： H04J1/12 ,  H04M3/34

    CPC分类号： H04L25/03006 ,  H04L25/0246 ,  H04L2025/03426

    摘要： Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

    摘要翻译： 多通道，受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器（DFD）提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出（MIMO）处理矩阵和DFD参数。 然后将QR分解（即，分解成正交和三角矩阵）施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数，然后在实时数据传输期间进行调整。

    Mitigation of interference and crosstalk in communications systems
    18.
    发明授权
    Mitigation of interference and crosstalk in communications systems 有权
    减轻通信系统中的干扰和串扰

    公开(公告)号：US07978591B2

    公开(公告)日：2011-07-12

    申请号：US11694981

    申请日：2007-03-31

    申请人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    发明人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    IPC分类号： H04J1/12 ,  H04J3/10

    CPC分类号： H04L25/03006 ,  H04L25/0246 ,  H04L2025/03426

    摘要： Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

    摘要翻译： 多通道，受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器（DFD）提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出（MIMO）处理矩阵和DFD参数。 然后将QR分解（即，分解成正交和三角矩阵）施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数，然后在实时数据传输期间进行调整。

    Precise location of buried metallic pipes and cables in the presence of signal distortion
    19.
    发明授权
    Precise location of buried metallic pipes and cables in the presence of signal distortion 有权
    在存在信号失真的情况下，埋藏金属管道和电缆的精确位置

    公开(公告)号：US07356421B2

    公开(公告)日：2008-04-08

    申请号：US11100696

    申请日：2005-04-06

    申请人： Thorkell Gudmundsson ,  Jim Waite ,  Johan Överby ,  Stevan Polak ,  Niklas Lindstrom

    发明人： Thorkell Gudmundsson ,  Jim Waite ,  Johan Överby ,  Stevan Polak ,  Niklas Lindstrom

    IPC分类号： G01V3/15

    CPC分类号： G01V3/081

    摘要： A new approach for locating an underground line described herein remains accurate in the face of bleedover by including both amplitude and phase from at least two magnetic field strength sensors in the measurement set. A numerical optimization step is introduced to deduce the positions and currents of each of several cables, of which one is the targeted cable and the others are termed bleedover cables. Furthermore, some embodiments of the method accounts for practical problems that exist in the field that relate to reliable estimation of cable positions, like the phase transfer function between transmitter and receiver, the estimation of confidence bounds for each estimate, and the rejection of false positive locates due to the presence of noise and interference.

    摘要翻译： 通过在测量组中包括来自至少两个磁场强度传感器的振幅和相位两者来确定泄漏面的新方法，用于定位本文所述的地下线路的方法仍然是准确的。 引入数值优化步骤来推导出几根电缆的位置和电流，其中一条是目标电缆，其他电缆称为放电电缆。 此外，该方法的一些实施例解决了现场存在的与电缆位置的可靠估计相关的实际问题，如发射机和接收机之间的相位传递函数，每个估计的置信界限的估计以及假阳性的拒绝 由于噪声和干扰的存在而定位。

    Apparatus for computer-aided design of a product or process
    20.
    发明授权
    Apparatus for computer-aided design of a product or process 失效
    用于产品或过程的计算机辅助设计的装置

    公开(公告)号：US06889101B1

    公开(公告)日：2005-05-03

    申请号：US09707490

    申请日：2000-11-06

    申请人： Thorkell Gudmundsson ,  Mark Erickson ,  Sunil C. Shah

    发明人： Thorkell Gudmundsson ,  Mark Erickson ,  Sunil C. Shah

    IPC分类号： G05B17/02 ,  G06F17/50 ,  G06F19/00

    CPC分类号： G06F17/50 ,  G05B17/02

    摘要： An apparatus for computer-aided design of a product or process is described. The apparatus includes a template module for storing a plurality of tasks and a plurality of rules for designing the product. The apparatus further includes a processing module coupled to the template module and being configured by the plurality of rules, for executing the plurality of tasks.

    摘要翻译： 描述了用于产品或过程的计算机辅助设计的装置。 该装置包括用于存储多个任务的模板模块和用于设计产品的多个规则。 该装置还包括耦合到模板模块并由多个规则配置的处理模块，用于执行多个任务。