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165 条记录 (耗时 0.039 秒)

    Unified closed loop SU/MU-MIMO signaling and codebook design
    51.
    发明授权
    Unified closed loop SU/MU-MIMO signaling and codebook design 有权
    统一闭环SU / MU-MIMO信令和码本设计

    公开(公告)号：US08254486B2

    公开(公告)日：2012-08-28

    申请号：US11904867

    申请日：2007-09-28

    申请人： Jun Shi ,  Qinghua Li ,  Xintian E. Lin

    发明人： Jun Shi ,  Qinghua Li ,  Xintian E. Lin

    IPC分类号： H04B7/04

    CPC分类号： H04L25/03343 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639 ,  H04L1/0693 ,  H04L5/0023 ,  H04L2025/03426 ,  H04L2025/03802

    摘要： A multi-resolution codebook is used to provide quantization for channel related information in a wireless network that supports both single-user MIMO and multi-user MIMO. The multi-resolution codebook may include a higher resolution “fine” codebook for use with MU-MIMO subscriber stations and a lower resolution “coarse” codebook for use with SU-MIMO subscriber stations. A tracking codebook may also be used to provide quantization for updates to channel related information. In at least one embodiment, the tracking codebook includes a number of unit vectors (or orthogonal matrices) disposed upon a sphere cap.

    摘要翻译： 多分辨率码本用于在支持单用户MIMO和多用户MIMO的无线网络中提供信道相关信息的量化。 多分辨率码本可以包括与MU-MIMO用户站一起使用的更高分辨率的“精细”码本和与SU-MIMO用户站一起使用的较低分辨率的“粗略”码本。 跟踪码本还可用于提供用于信道相关信息更新的量化。 在至少一个实施例中，跟踪码本包括设置在球帽上的多个单位向量（或正交矩阵）。

    Segmented ceramic matrix composite turbine airfoil component
    52.
    发明授权
    Segmented ceramic matrix composite turbine airfoil component 有权
    分段陶瓷基体复合涡轮机翼型件

    公开(公告)号：US08251651B2

    公开(公告)日：2012-08-28

    申请号：US12361192

    申请日：2009-01-28

    申请人： Tracy A. Propheter-Hinckley ,  Jun Shi

    发明人： Tracy A. Propheter-Hinckley ,  Jun Shi

    IPC分类号： F01D9/02

    CPC分类号： F01D5/284 ,  F01D5/3015 ,  F05D2240/80 ,  Y02T50/672 ,  Y02T50/673

    摘要： A segmented component for use with a gas turbine engine comprises a radially extending gas path portion. The gas path portion is for interacting with gas flow from the gas turbine engine. The component is divided into axially aligned segments comprising a forward segment, an aft segment, and a plurality of middle segments disposed between the forward segment and the aft segment. The middle segments comprise radially elongate ceramic matrix composite material plates. In one embodiment, the gas path portion comprises an airfoil for a turbine blade. In another embodiment, the gas path portion comprises a removable platform for a turbine blade. In another embodiment, the gas path portion comprises an airfoil for a turbine vane.

    摘要翻译： 用于燃气涡轮发动机的分段部件包括径向延伸的气体路径部分。 气体路径部分用于与来自燃气涡轮发动机的气体流相互作用。 该部件被分成轴向对准的段，其包括前段，后段和设置在前段和后段之间的多个中段。 中间段包括径向细长的陶瓷基复合材料板。 在一个实施例中，气体路径部分包括用于涡轮机叶片的翼型件。 在另一个实施例中，气体通道部分包括用于涡轮叶片的可移除平台。 在另一个实施例中，气体通道部分包括用于涡轮叶片的翼型件。

    SYSTEM AND METHOD FOR TRANSMTTING AND RECEIVING SIGNAL WITH QUASI-PERIODIC PULSE SEQUENCE
    55.
    发明申请
    SYSTEM AND METHOD FOR TRANSMTTING AND RECEIVING SIGNAL WITH QUASI-PERIODIC PULSE SEQUENCE 有权
    用定期脉冲序列传输和接收信号的系统和方法

    公开(公告)号：US20110292972A1

    公开(公告)日：2011-12-01

    申请号：US12887101

    申请日：2010-09-21

    申请人： Petru Cristian Budianu ,  Jun Shi ,  David Jonathan Julian

    发明人： Petru Cristian Budianu ,  Jun Shi ,  David Jonathan Julian

    IPC分类号： H03K9/04 ,  H04B1/69

    CPC分类号： H04L25/49 ,  H04B1/7174 ,  H04B1/7183 ,  H04B2001/6908

    摘要： System and method are disclosed for synchronization of a transmitting device and a receiving device that communicate with each other via pulse modulation. The synchronization technique entails the transmitting device sending one or more quasi-periodic pulse sequences to the receiving device. A quasi-periodic pulse sequence is based on a substantially periodic pulse sequence, and may include some non-periodic pulses or not include some periodic pulses. The transmitting device may transmit frames each including a preamble that comprises one or more quasi-periodic pulse sequences, and a data payload that may comprise data. The receiving device receives the signal, generates samples of the signal, and detects the quasi-periodic pulse sequences in the received signal by analyzing samples based on a sample associated with a pulse and the period associated with the substantially periodic pulse sequence. The receiving device is further able to detect frames based on the detection of the sequence, and extract data therefrom.

    摘要翻译： 公开了用于通过脉冲调制相互通信的发送设备和接收设备的同步的系统和方法。 同步技术需要发送设备向接收设备发送一个或多个准周期脉冲序列。 准周期性脉冲序列基于基本上周期性的脉冲序列，并且可以包括一些非周期脉冲或不包括一些周期脉冲。 发送设备可以发送各自包括包括一个或多个准周期性脉冲序列的前同步码的帧和可以包括数据的数据有效载荷。 接收装置接收信号，产生信号样本，并且通过基于与脉冲相关联的样本和与基本周期性脉冲序列相关联的周期来分析样本来检测接收信号中的准周期脉冲序列。 接收装置还能够根据序列的检测来检测帧，并从中提取数据。

    Delay compensation for transmit/receive chain calibration and multiuser MIMO
    57.
    发明授权
    Delay compensation for transmit/receive chain calibration and multiuser MIMO 有权
    发送/接收链校准和多用户MIMO的延迟补偿

    公开(公告)号：US08005131B2

    公开(公告)日：2011-08-23

    申请号：US11903488

    申请日：2007-09-21

    申请人： Qinghua Li ,  Jun Shi

    发明人： Qinghua Li ,  Jun Shi

    IPC分类号： H04B1/38 ,  H04L5/16

    CPC分类号： H04B7/0452 ,  H04B7/0421 ,  H04B17/373

    摘要： Compensation is provided for errors in channel information that can result when there is a delay between the measurement of the channel information and the subsequent use of the channel information. In one embodiment, downlink channel prediction is performed within a user device, in a system employing closed loop MIMO with implicit feedback, to reduce the occurrence of errors during the calculation of a calibration parameter within an associated base station. In another embodiment, channel prediction is used to predict a downlink channel state for a user device at a future time when a multi-user MIMO data transfer is to occur between a base station and a number of selected user devices.

    摘要翻译： 当频道信息的测量和频道信息的后续使用之间存在延迟时，可提供频道信息的错误补偿。 在一个实施例中，在采用具有隐式反馈的闭环MIMO的系统中，在用户设备内执行下行链路信道预测，以减少在相关联的基站期间计算校准参数期间的错误的发生。 在另一实施例中，当在基站和多个所选择的用户设备之间进行多用户MIMO数据传输时，信道预测用于预测用户设备的下行链路信道状态。

    Method of process trend matching for identification of process variable
    58.
    发明授权
    Method of process trend matching for identification of process variable 失效
    流程变量识别过程趋势匹配方法

    公开(公告)号：US07813893B2

    公开(公告)日：2010-10-12

    申请号：US11655024

    申请日：2007-01-18

    申请人： Kien Hoong Fong ,  Wei Fu ,  Jun Shi

    发明人： Kien Hoong Fong ,  Wei Fu ,  Jun Shi

    IPC分类号： G05B13/04

    CPC分类号： G05B13/048

    摘要： A method that involves matching the trend of process outcome with the trend of process variables to identify the variables that have an impact on the process outcome is disclosed. The method for process trend matching comprises processing of raw data of process outcome and of process variables using an outlier filtering method, smoothing these data using common smoothing algorithm like Kernel, dividing smoothed raw data equally into time intervals, computing the gradients of the points at both ends of the time intervals, and translating the gradients into a scale based on the magnitude of the gradients. The following steps comprise comparing the process outcome and each process variable independently for same time frame, and assigning a score for both outcome and variable. The sum of the scores is then computed which is used to determine the quality of fit. A real-time monitoring system is then set up to monitor these variables for any drifts. When a drift is detected, troubleshooting activity will be triggered and actions taken to resolve the drift, after which monitoring of the variable will be restarted.

    摘要翻译： 公开了一种将过程结果趋势与过程变量趋势相匹配的方法，以确定对过程结果有影响的变量。 过程趋势匹配的方法包括使用异常值滤波方法处理过程结果的原始数据和过程变量，使用常规的平滑算法（如内核）平滑这些数据，将平滑的原始数据平均分为时间间隔，计算点的梯度 时间间隔的两端，并且基于梯度的幅度将梯度转换成刻度。 以下步骤包括在相同时间框架下独立地比较过程结果和每个过程变量，并为结果和变量分配分数。 然后计算得分的总和，其用于​​确定拟合质量。 然后建立一个实时监控系统来监测任何漂移的这些变量。 当检测到漂移时，将触发故障排除活动，并采取措施来解决漂移，然后重新启动对变量的监视。