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    • 71. 发明申请
    • Hybrid GNSS and TDOA Wireless Location System
    • 混合GNSS和TDOA无线定位系统
    • US20120015670A1
    • 2012-01-19
    • US13240964
    • 2011-09-22
    • Pete A. BoyerRonald LeFeverRashidus S. MiaRobert J. Anderson
    • Pete A. BoyerRonald LeFeverRashidus S. MiaRobert J. Anderson
    • H04W64/00
    • G01S19/46
    • A method and apparatus for position determination is provided using measurements from both Global Positioning System (GPS) receivers and terrestrial-based Uplink Time Difference of Arrival (UTDOA) receivers. The method involves the transformation of downlink satellite measurements into equivalent UTDOA measurements by computing comparable cross-correlation coefficients and time differences of arrival with respect to a UTDOA reference station. The method includes a weighting operation whereby the relative weights of the UTDOA measurements and the relative weights of the GPS measurements are adjusted based on a theoretical scaling followed by empirical adjustments. The method further involves the efficient computation and combining of metrics that are used to minimize the weighted error between candidate location solutions and the UTDOA and GPS measurements.
    • 使用来自全球定位系统(GPS)接收机和基于地面的上行链路到达时差(UTDOA)接收机的测量来提供用于位置确定的方法和装置。 该方法涉及通过计算相对于UTDOA参考站的可比互相关系数和到达时间差来将下行链路卫星测量转换成等效的UTDOA测量。 该方法包括一个加权操作,其中UTDOA测量的相对权重和GPS测量的相对权重基于经验调整后的理论缩放来调整。 该方法还涉及用于最小化候选位置解决方案与UTDOA和GPS测量之间的加权误差的度量的有效计算和组合。
    • 72. 发明授权
    • Systems and methods for a snapshot of data
    • 数据快照的系统和方法
    • US08015156B2
    • 2011-09-06
    • US12717869
    • 2010-03-04
    • Robert J. AndersonNeal T. FachanJustin M. HustedEric M. LemarAaron J. PasseyDarren P. Schack
    • Robert J. AndersonNeal T. FachanJustin M. HustedEric M. LemarAaron J. PasseyDarren P. Schack
    • G06F7/02G06F17/30
    • G06F17/30088G06F17/3015Y10S707/99953
    • In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. According to one embodiment, the system stores representations of the snapshots that govern a file or directory and its descendants within metadata associated with that file or directory. In one embodiment, before modifying a file or directory, the system updates the representations of the governing snapshots by traversing the metadata of ancestors of the file or directory.
    • 在一个实施例中,用户或客户端设备连接到由一个或多个物理节点组成的分布式文件系统。 每个物理节点上的数据存储有关文件系统内的文件和目录的元数据。 一些实施例允许用户拍摄存储在文件系统上的数据的快照。 快照可以包括单个文件,单个目录,目录内的多个文件,多个目录,文件系统上包括嵌套文件和子目录的路径,或者文件系统上的多于一个路径,每个路径包括 嵌套文件和目录。 根据一个实施例,系统将管理文件或目录及其后代的快照的表示存储在与该文件或目录相关联的元数据内。 在一个实施例中,在修改文件或目录之前,系统通过遍历文件或目录的祖先的元数据来更新管理快照的表示。
    • 73. 发明授权
    • Use of radio access technology diversity for location
    • 使用无线电接入技术多样化的位置
    • US07974627B2
    • 2011-07-05
    • US12268719
    • 2008-11-11
    • Rashidus S. MiaRobert J. Anderson
    • Rashidus S. MiaRobert J. Anderson
    • H04W36/00
    • H04W64/003H04W88/06
    • Various aspects are disclosed herein for determining a location estimate for multi-mode mobile devices using measurements from one or more radio access technologies and providing a combined location solution. Using the multiple radio access technology capability of the wireless communications system, a mobile communications device may be located on a first radio network characterized by a first radio modulation technique, radio network topology, and channel bandwidth. The mobile communications device may then be handed off to a second radio network and located using a second radio network characterized by a second radio modulation technique, radio network topology, and channel bandwidth. The two location estimates may then be used to develop a combined location estimate.
    • 本文公开了各种方面,用于使用来自一个或多个无线电接入技术的测量并提供组合的位置解决方案来确定多模式移动设备的位置估计。 使用无线通信系统的多种无线电接入技术能力,移动通信设备可以位于第一无线电网络上,其特征在于第一无线电调制技术,无线电网络拓扑和信道带宽。 然后移动通信设备可以被切换到第二无线电网络,并且使用第二无线电网络定位,其特征在于第二无线电调制技术,无线电网络拓扑和信道带宽。 然后可以使用两个位置估计来开发组合位置估计。
    • 74. 发明授权
    • Systems and methods for a snapshot of data
    • 数据快照的系统和方法
    • US07953704B2
    • 2011-05-31
    • US11506596
    • 2006-08-18
    • Robert J. AndersonNeal T. FachanEric M. LemarAaron J. PasseyDavid W. RichardsDarren P. Schack
    • Robert J. AndersonNeal T. FachanEric M. LemarAaron J. PasseyDavid W. RichardsDarren P. Schack
    • G06F7/76G06F17/30
    • G06F17/30088G06F17/3015
    • In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. According to one embodiment, the system stores and updates metadata, including a governance list, for each of the files and directories. The governance list provides a representation of the snapshots which govern a file or directory and its descendants.
    • 在一个实施例中,用户或客户端设备连接到由一个或多个物理节点组成的分布式文件系统。 每个物理节点上的数据存储有关文件系统内的文件和目录的元数据。 一些实施例允许用户拍摄存储在文件系统上的数据的快照。 快照可以包括单个文件,单个目录,目录内的多个文件,多个目录,文件系统上包括嵌套文件和子目录的路径,或者文件系统上的多于一个路径,每个路径包括 嵌套文件和目录。 根据一个实施例,系统存储和更新用于每个文件和目录的元数据,包括治理列表。 治理列表提供了管理文件或目录及其后代的快照的表示。
    • 78. 发明申请
    • SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA
    • 数据快照的系统和方法
    • US20100161556A1
    • 2010-06-24
    • US12717840
    • 2010-03-04
    • Robert J. AndersonNeal T. FachanEric M. LemarAaron J. PasseyDavid W. RichardsDarren P. Schack
    • Robert J. AndersonNeal T. FachanEric M. LemarAaron J. PasseyDavid W. RichardsDarren P. Schack
    • G06F7/00G06F17/00
    • G06F17/30088G06F17/3015Y10S707/99955
    • In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. In one embodiment, the metadata comprises mini-snapshots for directories representing a path from the root of the file system to the root of the snapshot. The mini-snapshots serve as stand-ins for portions of the file system which are not included in the snapshot, but which permit access to the snapshot data in an intuitive way.
    • 在一个实施例中,用户或客户端设备连接到由一个或多个物理节点组成的分布式文件系统。 每个物理节点上的数据存储有关文件系统内的文件和目录的元数据。 一些实施例允许用户拍摄存储在文件系统上的数据的快照。 快照可以包括单个文件,单个目录,目录内的多个文件,多个目录,文件系统上包括嵌套文件和子目录的路径,或者文件系统上的多于一个路径,每个路径包括 嵌套文件和目录。 在一个实施例中,元数据包括用于表示从文件系统的根到快照的根的路径的目录的小型快照。 微型快照作为文件系统中未包含在快照中的部分的备用,但允许以直观的方式访问快照数据。
    • 79. 发明申请
    • Femto-Cell Location by Direct Methods
    • 通过直接方法的毫微微小区位置
    • US20100120447A1
    • 2010-05-13
    • US12268989
    • 2008-11-11
    • Robert J. AndersonRashidus S. MiaMatthew L. Ward
    • Robert J. AndersonRashidus S. MiaMatthew L. Ward
    • H04W64/00
    • H04W64/003G01S5/0242H04W84/045
    • Illustrative embodiments of the inventive subject matter described herein include, but are not limited to, the following: a femto-cell device, methods for use by a wireless location system (WLS) in locating a femto-cell device, and a wireless location system having certain features relating to the location of femto-cell devices. A femto-cell device used in a wireless communications system (WCS) includes a location subsystem configured to acquire information identifying the geographic location of the femto-cell device. The device also includes an antenna subsystem, a radio frequency (RF) block coupled to the antenna subsystem, a baseband block coupled to the RF block, and a communications block coupled to the baseband block. In addition, the device is configured to communicate with the WCS, including communicating at least some of the location information to the WCS.
    • 本文描述的本发明主题的说明性实施例包括但不限于以下:毫微微小区设备,无线定位系统(WLS)在定位毫微微小区设备时使用的方法,以及无线定位系统 具有与毫微微小区设备的位置相关的某些特征。 在无线通信系统(WCS)中使用的毫微微小区设备包括被配置为获取识别毫微微小区设备的地理位置的信息的位置子系统。 该设备还包括天线子系统,耦合到天线子系统的射频(RF)块,耦合到RF块的基带块以及耦合到基带块的通信块。 另外,该设备被配置为与WCS通信,包括将至少一些位置信息传送到WCS。