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    Minimum coverage area of wireless base station determination
    1.
    发明授权
    Minimum coverage area of wireless base station determination 有权
    无线基站测定的最小覆盖面积

    公开(公告)号：US08478280B1

    公开(公告)日：2013-07-02

    申请号：US13555932

    申请日：2012-07-23

    申请人： Zhengrong Ji ,  Michael Jesse Chu ,  Adel Amin Youssef ,  Arunesh Mishra ,  Steven John Lee ,  Ravi Jain

    发明人： Zhengrong Ji ,  Michael Jesse Chu ,  Adel Amin Youssef ,  Arunesh Mishra ,  Steven John Lee ,  Ravi Jain

    IPC分类号： H04W40/00

    CPC分类号： H04W24/00

    摘要： Systems and methods for estimating the minimum geographic coverage of a wireless base station. In an embodiment, the present invention estimates coverage by (1) receiving real-time wireless base station information from the mobile device; (2) extracting a set of location points and system specific information based on the real-time wireless base station information; (3) determining a coverage area based on the set of location points and the system specific information; (4) adjusting for errors based on various factors (5) storing the determined coverage area.

    摘要翻译： 用于估计无线基站的最小地理覆盖的系统和方法。 在一个实施例中，本发明通过（1）从移动设备接收实时无线基站信息来估计覆盖范围; （2）基于实时无线基站信息提取一组位置点和系统特定信息; （3）基于位置集合和系统特定信息确定覆盖区域; （4）基于各种因素（5）调整误差，存储确定的覆盖区域。

    Accuracy analysis of wireless base station location
    3.
    发明授权
    Accuracy analysis of wireless base station location 有权
    无线基站位置的精度分析

    公开(公告)号：US08219112B1

    公开(公告)日：2012-07-10

    申请号：US12324486

    申请日：2008-11-26

    申请人： Adel Amin Youssef ,  Zhengrong Ji ,  Michael Jesse Chu ,  Ravi Jain ,  Steven John Lee

    发明人： Adel Amin Youssef ,  Zhengrong Ji ,  Michael Jesse Chu ,  Ravi Jain ,  Steven John Lee

    IPC分类号： H04W24/00 ,  G01S19/00

    CPC分类号： G01S5/0242 ,  H04W64/003

    摘要： A method and system for accuracy analysis of wireless base station location is provided. In one embodiment, data from a set of mobile devices using a wireless base station is collected. A location of a wireless base station is estimated based on locations of the mobile devices (i.e. points) in the collected set. To provide a more accurate location estimation for the wireless base station, the estimated location is analyzed for accuracy based on the collected data. A confidence score is calculated using a weight function with weights for the collected data based on factors, such as, collection size, platform types of the mobile devices, quality, temporal diversity and/or spatial diversity of points corresponding to the mobile devices, etc. An estimated location of the wireless base station may be adjusted based on the calculated confidence score. An estimated coverage region of the wireless base station may be also estimated and adjusted.

    摘要翻译： 提供了无线基站位置精度分析的方法和系统。 在一个实施例中，收集来自使用无线基站的一组移动设备的数据。 基于收集集中的移动设备（即，点）的位置来估计无线基站的位置。 为了为无线基站提供更准确的位置估计，基于收集的数据来分析估计位置的准确性。 使用权重函数计算置信度分数，该权重函数基于收集数据的权重，例如收集大小，移动设备的平台类型，与移动设备相对应的点的质量，时间分集和/或空间分集等因素 可以基于所计算的置信度得分来调整无线基站的估计位置。 还可以估计和调整无线基站的估计覆盖区域。

    Wireless base station location estimation
    4.
    发明授权
    Wireless base station location estimation 有权
    无线基站位置估计

    公开(公告)号：US08219116B1

    公开(公告)日：2012-07-10

    申请号：US12323622

    申请日：2008-11-26

    申请人： Zhengrong Ji ,  Adel Amin Youssef ,  Michael Jesse Chu ,  Steven John Lee ,  Ravi Jain

    发明人： Zhengrong Ji ,  Adel Amin Youssef ,  Michael Jesse Chu ,  Steven John Lee ,  Ravi Jain

    IPC分类号： H04W24/00 ,  H04W36/00

    CPC分类号： H04W64/003

    摘要： A wireless base station allows a mobile device to communicate with a wireless network. An estimate of the location of the wireless base station may allow a location based service to determine the location of a mobile device. In an embodiment, location may be estimated using a collection of data samples obtained from a mobile device. These data samples may contain carrier related timing information, for example GSM (Global System for Mobile Communications) timing information and received signal strength indication (RSSI). Data from the GSM timing information and RSSI may be analyzed to estimate a distance of a mobile device from a wireless base station. In another embodiment, a centroid of the data samples is computed. The centroid may then be used to estimate the direction of a cell phone tower relative to the centroid. In this way, using an estimate of distance and direction, location of wireless base station may be estimated.

    摘要翻译： 无线基站允许移动设备与无线网络进行通信。 对无线基站的位置的估计可以允许基于位置的服务来确定移动设备的位置。 在一个实施例中，可以使用从移动设备获得的数据样本的集合来估计位置。 这些数据样本可以包含载波相关的定时信息，例如GSM（全球移动通信系统）定时信息和接收信号强度指示（RSSI）。 可以分析来自GSM定时信息和RSSI的数据以估计移动设备与无线基站的距离。 在另一个实施例中，计算数据样本的质心。 然后可以使用质心来估计手机塔相对于重心的方向。 以这种方式，可以估计使用距离和方向的估计，无线基站的位置。

    Disambiguation of Wireless Data Clusters Using Preclassification
    5.
    发明申请
    Disambiguation of Wireless Data Clusters Using Preclassification 审中-公开
    使用预分类消除无线数据集群

    公开(公告)号：US20150189464A1

    公开(公告)日：2015-07-02

    申请号：US12324474

    申请日：2008-11-26

    申请人： Michael Jesse Chu ,  Adel Amin Youssef ,  Zhengrong Ji ,  Steven John Lee ,  Ravi Jain

    发明人： Michael Jesse Chu ,  Adel Amin Youssef ,  Zhengrong Ji ,  Steven John Lee ,  Ravi Jain

    IPC分类号： H04W64/00 ,  G01S5/02 ,  H04W8/02

    CPC分类号： H04W4/029 ,  G01S5/02

    摘要： Systems and methods for determining the geographic location of a user based on limited and ambiguous information available from the user's mobile electronic communication device are provided. In an embodiment, a computer-based system estimates a device's physical location based on partial identification information collected from the device such as the local area code and cell identification number, and numerous non-locational attributes. When the system determines that the collected information from the device corresponds to more than one single geographic location the system may use additional techniques of iterative disambiguation and filtering to determine a predicted location. Additional techniques may be used to increase the confidence level of the predicted location.

    摘要翻译： 提供了基于用户的移动电子通信设备可用的有限和不明确的信息来确定用户的地理位置的系统和方法。 在一个实施例中，基于计算机的系统基于从设备收集的部分识别信息来估计设备的物理位置，例如本地区域代码和小区标识号以及许多非位置属性。 当系统确定从设备收集的信息对应于多于一个单个地理位置时，系统可以使用迭代消歧和过滤的附加技术来确定预测位置。 可以使用附加技术来增加预测位置的置信水平。

    Mobile Device Battery Management
    8.
    发明申请
    Mobile Device Battery Management 有权
    移动设备电池管理

    公开(公告)号：US20100194632A1

    公开(公告)日：2010-08-05

    申请号：US12686982

    申请日：2010-01-13

    申请人： Mika Raento ,  David S. Maynard ,  Steven John Lee

    发明人： Mika Raento ,  David S. Maynard ,  Steven John Lee

    IPC分类号： G01S19/12 ,  G06F1/32 ,  G06F15/16 ,  G01S19/34

    CPC分类号： H04M1/72572 ,  G06F1/3212 ,  H04M2250/06 ,  H04M2250/10 ,  H04W4/02 ,  H04W4/20 ,  H04W52/0254 ,  H04W52/0261 ,  H04W52/0274 ,  H04W64/00 ,  Y02D10/174 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

    摘要： In general, the subject matter described in this specification can be embodied in methods, systems, and program products. Data representing a plurality of power management profiles for a battery-operated wireless computing device are stored on the device. The power management profiles correspond to different power consumption levels. Each power management profile defines a feature for determining a geographic location of the device from among a plurality of features that are available for determining the geographic location of the device, and a frequency for employing the feature to determine the geographic location of the device. A first battery level of the device is determined. If the determined battery level is lower than a first predetermined amount, the device switches from a first power management profile having a first consumption level to a second power management profile having a second consumption level that is lower than the first consumption level.

    摘要翻译： 通常，本说明书中描述的主题可以体现在方法，系统和程序产品中。 表示用于电池供电的无线计算设备的多个电源管理配置文件的数据被存储在设备上。 电源管理配置文件对应于不同的功耗级别。 每个功率管理简档定义了用于从可用于确定设备的地理位置的多个特征中确定设备的地理位置的特征以及用于使用该特征来确定设备的地理位置的频率。 确定设备的第一个电池电量。 如果确定的电池电量低于第一预定量，则装置从具有第一消耗电平的第一电源管理配置文件切换到具有低于第一消耗电平的第二消耗电平的第二电源管理配置文件。

    Immersed metallurgical pouring nozzles
    9.
    发明授权
    Immersed metallurgical pouring nozzles 失效
    浸入冶金浇注嘴

    公开(公告)号：US5656192A

    公开(公告)日：1997-08-12

    申请号：US626960

    申请日：1996-04-03

    申请人： Steven John Lee

    发明人： Steven John Lee

    IPC分类号： B22D41/50

    CPC分类号： B22D41/505

    摘要： An immersed metallurgical pouring nozzle, such as a submerged entry nozzle for pouring molten steel, comprises a body of refractory material, such as graphite alumina, which defines a flow passage. An annular member of refractory material, such as zirconia with a very low or no-content of carbon, whose erosion resistance is higher than that of the body of the nozzle is wholly encapsulated in the material of the body of the nozzle.

    摘要翻译： 浸入式冶金浇注嘴，例如用于浇注钢水的浸入式喷嘴，包括限定流动通道的诸如石墨氧化铝的耐火材料体。 难熔材料的环状构件，例如具有非常低或不含碳量的氧化锆，其耐冲击性高于喷嘴主体的耐蚀材料，其全部包封在喷嘴主体的材料中。