WIRELESS COMMUNICATIONS METHODS AND SYSTEMS FOR LONG-CODE AND OTHER SPREAD SPECTRUM WAVEFORM PROCESSING
    1.
    发明申请
    WIRELESS COMMUNICATIONS METHODS AND SYSTEMS FOR LONG-CODE AND OTHER SPREAD SPECTRUM WAVEFORM PROCESSING 审中-公开
    无线通信的长码和其他频谱波形处理的方法和系统

    公开(公告)号:WO02073937A3

    公开(公告)日:2002-11-07

    申请号:PCT/US0208106

    申请日:2002-03-14

    Inventor: OATES JOHN H

    Abstract: The invention provides improved CDMA, WCDMA or other spread-spectrum communication systems of the type (fig. 1) that processes one or more spread-spectrum waveforms, each representative of a waveform received from a respective user. The improvement is characterized by a first logic element (100) that generates a residual composite spread-spectrum waveform (112) as a function of an arithmetic difference between a composite spread-spectrum waveform for all users and an estimated spread-spectrum waveform for each user. It is further characterized by one or more second logic elements (118, 120) that generates for at least a selected user, a refined spread-spectrum waveform as a function of a sum of the residual composite spread-spectrum waveform and the estimated spread-spectrum waveform for that user.

    Abstract translation: 本发明提供了处理一个或多个扩频波形的类型(图1)类型的改进的CDMA,WCDMA或其他扩频通信系统,每个扩频波形表示从相应用户接收的波形。 该改进的特征在于,产生作为所有用户的复合扩频波形之间的算术差异的函数的残差复合扩频波形(112)的第一逻辑元件(100)和用于所有用户的估计扩频波形 用户。 其进一步的特征在于为至少选择的用户产生的一个或多个第二逻辑元件(118,120),作为残差复合扩频波形和估计扩展频谱波形之和的函数的精细扩频波形, 该用户的频谱波形。

    WIRELESS COMMUNICATIONS METHODS AND SYSTEMS FOR SHORT-CODE AND OTHER SPREAD SPECTRUM WAVEFORM PROCESSING
    4.
    发明申请
    WIRELESS COMMUNICATIONS METHODS AND SYSTEMS FOR SHORT-CODE AND OTHER SPREAD SPECTRUM WAVEFORM PROCESSING 审中-公开
    无线通信短路码和其他频谱波形处理的方法和系统

    公开(公告)号:WO02073230A3

    公开(公告)日:2002-12-27

    申请号:PCT/US0207783

    申请日:2002-03-14

    Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, "gamma matrix") that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, "R-matrix") that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.

    Abstract translation: 本发明提供了用于多用户检测(MUD)处理的方法和装置,其具有例如在改进容量CDMA和其它无线基站中的应用。 本发明的一个方面提供一种用于在CDMA短码频谱波形中检测用户发送符号的多处理器,多用户检测系统。 第一处理元件生成表示与一个用户相关联的短码与与一个或多个其他用户相关联的短码之间的相关性的矩阵(以下称为“伽马矩阵”)。 一组第二处理元件例如从伽马矩阵生成基于它们的幅度和时间滞后的用户波形之间的互相关的矩阵(以下称为“R矩阵”)。 第三处理单元产生作为R矩阵的函数的用户发送符号的估计。

    AIR-FLOW-BY COOLING TECHNOLOGY AND AIR-FLOW-BY CIRCUIT BOARD MODULES
    5.
    发明申请
    AIR-FLOW-BY COOLING TECHNOLOGY AND AIR-FLOW-BY CIRCUIT BOARD MODULES 审中-公开
    空气流冷却技术和空气流通电路板模块

    公开(公告)号:WO2014089076A3

    公开(公告)日:2014-10-30

    申请号:PCT/US2013072869

    申请日:2013-12-03

    CPC classification number: G06F1/20 H05K7/1452 H05K7/20563 H05K7/20572

    Abstract: Various embodiments provide a circuit board module include a primary cover, a secondary cover and a circuit board sandwiched between the primary cover and the secondary cover. A first set of fins or channels may be provided on a surface of the primary cover. The first set of fins or channels guide cooling air flowing on the surface of the primary cover. A second set of fins or channels may be provided on a surface of the second cover. The second set of fins or channels guide the cooling air flowing on the surface of the secondary cover. The second set of fins or channels intermates with the first set of fins or channels to form a sealed casing enclosing the circuit board. The sealed casing forms a Faraday cage to protect the circuit board from electromagnetic interference.

    Abstract translation: 各种实施例提供一种电路板模块,包括主盖,副盖和夹在主盖和次盖之间的电路板。 可以在主盖的表面上设置第一组翅片或通道。 第一组翅片或通道引导在主盖表面上流动的冷却空气。 可以在第二盖的表面上设置第二组翅片或通道。 第二组翅片或通道引导在二次盖的表面上流动的冷却空气。 第二组翅片或通道与第一组翅片或通道相互配合以形成封闭电路板的密封壳体。 密封外壳形成法拉第笼,以保护电路板免受电磁干扰。

    AIR-FLOW-BY COOLING TECHNOLOGY AND AIR-FLOW-BY CIRCUIT BOARD MODULES

    公开(公告)号:CA2893488A1

    公开(公告)日:2014-06-12

    申请号:CA2893488

    申请日:2013-12-03

    Abstract: Various embodiments provide a circuit board module include a primary cover, a secondary cover and a circuit board sandwiched between the primary cover and the secondary cover. A first set of fins or channels may be provided on a surface of the primary cover. The first set of fins or channels guide cooling air flowing on the surface of the primary cover. A second set of fins or channels may be provided on a surface of the second cover. The second set of fins or channels guide the cooling air flowing on the surface of the secondary cover. The second set of fins or channels intermates with the first set of fins or channels to form a sealed casing enclosing the circuit board. The sealed casing forms a Faraday cage to protect the circuit board from electromagnetic interference.

    Optimized implementation of back projection for computed tomography (CT)

    公开(公告)号:AU2012207195A1

    公开(公告)日:2013-09-05

    申请号:AU2012207195

    申请日:2012-01-20

    Abstract: The disclosure relates generally to a method of three dimensional (3D) tomographic volume reconstruction for computed tomography (CT) using vector processors and more specifically to an optimized implementation which pre-computes back projection weights and perspective geometry data associated with a given CT device as down-sampled tables. The down-sampled perspective geometry data and the weight table are interpolated dynamically as part of the volume reconstruction process for an object scanned using the given CT device.

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