公开(公告)号：US07403784B2

公开(公告)日：2008-07-22

申请号：US11077171

申请日：2005-03-10

申请人： Wen-Hua Ju ,  Anjur S. Krishnakumar ,  P. Krishnan ,  David Madigan

发明人： Wen-Hua Ju ,  Anjur S. Krishnakumar ,  P. Krishnan ,  David Madigan

IPC分类号： H04Q7/20

CPC分类号： G01S5/02 ,  G01S5/0252 ,  H04W64/00

摘要： Methods and apparatus are provided for estimating a location of a plurality of wireless terminals. Signal strength measurements are obtained for at least one packet transmitted by each of the wireless terminals; and a Bayesian algorithm is applied to the signal strength measurements to estimate the location of each wireless terminal. In an infrastructure-based deployment, signal strength measurements are obtained from one or more signal monitors. In a client-based model, signal strength measurements are obtained from a client associated with a respective wireless terminal.

摘要翻译： 提供了用于估计多个无线终端的位置的方法和装置。 对于每个无线终端发送的至少一个分组获得信号强度测量; 并且将贝叶斯算法应用于信号强度测量以估计每个无线终端的位置。 在基于基础设施的部署中，从一个或多个信号监视器获得信号强度测量。 在基于客户端的模型中，从与​​相应无线终端相关联的客户端获得信号强度测量。

公开(公告)号：US20060205417A1

公开(公告)日：2006-09-14

申请号：US11077171

申请日：2005-03-10

申请人： Wen-Hua Ju ,  Anjur Krishnakumar ,  P. Krishnan ,  David Madigan

发明人： Wen-Hua Ju ,  Anjur Krishnakumar ,  P. Krishnan ,  David Madigan

IPC分类号： H04Q7/20

CPC分类号： G01S5/02 ,  G01S5/0252 ,  H04W64/00

摘要： Methods and apparatus are provided for estimating a location of a plurality of wireless terminals. Signal strength measurements are obtained for at least one packet transmitted by each of the wireless terminals; and a Bayesian algorithm is applied to the signal strength measurements to estimate the location of each wireless terminal. In an infrastructure-based deployment, signal strength measurements are obtained from one or more signal monitors. In a client-based model, signal strength measurements are obtained from a client associated with a respective wireless terminal.

摘要翻译： 提供了用于估计多个无线终端的位置的方法和装置。 对于每个无线终端发送的至少一个分组获得信号强度测量; 并且将贝叶斯算法应用于信号强度测量以估计每个无线终端的位置。 在基于基础设施的部署中，从一个或多个信号监视器获得信号强度测量。 在基于客户端的模型中，从与​​相应无线终端相关联的客户端获得信号强度测量。

公开(公告)号：US07583961B2

公开(公告)日：2009-09-01

申请号：US10834291

申请日：2004-04-28

申请人： Martin Kappes ,  Anjur S. Krishnakumar ,  P. Krishnan

发明人： Martin Kappes ,  Anjur S. Krishnakumar ,  P. Krishnan

IPC分类号： H04Q7/20

CPC分类号： H04W16/18 ,  H04W16/20 ,  H04W24/02

摘要： A method and apparatus are provided for obtaining a signal strength model for an access point at an arbitrary location, q, at a site. Signal strength measurements are obtained for each of n sampling points; the signal strength received at the arbitrary location, q, is computed from each of the sampling points (for example, using reciprocity principles); signal strength estimates corresponding to the signal received at the sampling points from the arbitrary location are computed; and a signal strength model is determined for an access point positioned at the arbitrary location, q.

摘要翻译： 提供了一种方法和装置，用于在现场的任意位置q获得接入点的信号强度模型。 对于n个采样点中的每一个获得信号强度测量; 从任意位置接收的信号强度q从每个采样点计算（例如，使用互易原理）; 计算与从任意位置的采样点接收的信号相对应的信号强度估计值; 并且为位于任意位置的接入点q确定信号强度模型。

公开(公告)号：US20050176442A1

公开(公告)日：2005-08-11

申请号：US10776058

申请日：2004-02-11

申请人： Wen-Hua Ju ,  Anjur Krishnakumar ,  P. Krishnan ,  James Landwehr ,  Colin Mallows

发明人： Wen-Hua Ju ,  Anjur Krishnakumar ,  P. Krishnan ,  James Landwehr ,  Colin Mallows

IPC分类号： G01S19/03 ,  G01S5/02 ,  H04L12/28 ,  H04W64/00 ,  H04W84/12 ,  H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/0252 ,  H04W84/12

摘要： A system is disclosed that enables the estimation of the location of a wireless terminal in a wireless network. The illustrative embodiment works without requiring modifications to be made to the wireless terminal. Furthermore, the hardware of some embodiments of the present invention can be inexpensively deployed indoors. Some embodiments of the present invention are, therefore, ideally suited for use with legacy indoor systems. The system of the illustrative embodiment of the present invention, in some embodiments, uses an offline process and an online process for location estimation. The described system, however, can be used with other techniques for location estimation.

摘要翻译： 公开了能够估计无线终端在无线网络中的位置的系统。 说明性实施例工作而不需要对无线终端进行修改。 此外，本发明的一些实施例的硬件可以廉价地部署在室内。 因此，本发明的一些实施例理想地适用于传统室内系统。 在一些实施例中，本发明的说明性实施例的系统使用离线处理和用于位置估计的在线处理。 然而，所描述的系统可以与其他用于位置估计的技术一起使用。

公开(公告)号：US20080080540A1

公开(公告)日：2008-04-03

申请号：US11765242

申请日：2007-06-19

申请人： Bengi Karacali-Akyamac ,  Mark John Karol ,  P. Krishnan ,  Jean Meloche

发明人： Bengi Karacali-Akyamac ,  Mark John Karol ,  P. Krishnan ,  Jean Meloche

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L43/00 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087 ,  H04L45/22 ,  H04L45/3065

摘要： A technique is disclosed that attempts to improve the evaluation of a network path's signal quality, as well as the selection of a network path for transmission purposes, without some of the costs and disadvantages of doing so in the prior art. In accordance with the illustrative embodiment, a node with access to the packet network, such as a VoIP telephone endpoint, evaluates the quality of service that is associated with each of multiple network paths. The evaluation process is iterative, in which the number of candidate paths is successively reduced from one iteration of the technique to the next. The multiple paths that remain as candidates in any given iteration are evaluated concurrently and at an evaluation bit rate that i) is less than the full transmission rate of the real-time traffic (VoIP) packets to be sent and ii) varies as a function of the number of candidate paths remaining under consideration.

摘要翻译： 公开了一种技术，其尝试改进对网络路径的信号质量的评估，以及用于传输目的的网络路径的选择，而不是在现有技术中这样做的一些成本和缺点。 根据说明性实施例，具有诸如VoIP电话端点的分组网络的访问节点评估与多个网络路径中的每一个相关联的服务质量。 评估过程是迭代的，其中候选路径的数量从技术的一次迭代到下一个迭代继续减少。 在任何给定迭代中保持作为候选的多个路径被并发地评估，并且在i）小于要发送的实时业务（VoIP）分组的全传输速率的评估比特率下进行评估，ii）作为功能而变化 的候选人路数仍在考虑之中。

公开(公告)号：US20070177579A1

公开(公告)日：2007-08-02

申请号：US11342193

申请日：2006-01-27

申请人： Eric Diethorn ,  Bengi Karacali-Akyamac ,  Mark Karol ,  Anjur Krishnakumar ,  P. Krishnan ,  Jean Meloche

发明人： Eric Diethorn ,  Bengi Karacali-Akyamac ,  Mark Karol ,  Anjur Krishnakumar ,  P. Krishnan ,  Jean Meloche

IPC分类号： H04L12/66

CPC分类号： H04L47/10 ,  H04L45/24 ,  H04L45/302 ,  H04L47/38

摘要： A method and apparatus are disclosed that seek to improve the quality of service that is experienced during the transmission of a stream of packets across one or more paths. In particular, a transmitting node encodes a source stream of data (e.g., audio, video, etc.) into one or more sub-streams, and distributes those sub-streams onto multiple network transmission paths. In accordance with the illustrative embodiment of the present invention, the transmitting node evaluates the quality of service of a first network path that fails to provide a quality-of-service guarantee. When the quality of service of the first network path becomes unsatisfactory, the coding of one or more sub-streams that are being transmitted on a second network path is adjusted. In other words, the coding on a second channel is adjusted in response to the changing conditions on a first channel.

摘要翻译： 公开了一种方法和装置，其尝试提高在一个或多个路径上的分组流传输期间经历的服务质量。 具体地，发送节点将数据源（例如，音频，视频等）编码成一个或多个子流，并将这些子流分配到多个网络传输路径上。 根据本发明的说明性实施例，发送节点评估不能提供服务质量保证的第一网络路径的服务质量。 当第一网络路径的服务质量不能令人满意时，调整在第二网络路径上发送的一个或多个子流的编码。 换句话说，响应于第一信道上的变化条件来调整第二信道上的编码。

公开(公告)号：US20050176406A1

公开(公告)日：2005-08-11

申请号：US10776588

申请日：2004-02-11

申请人： Anjur Krishnakumar ,  P. Krishnan

发明人： Anjur Krishnakumar ,  P. Krishnan

IPC分类号： G01S19/19 ,  H04L12/28 ,  H04L12/56 ,  H04W24/00 ,  H04W64/00 ,  H04M1/68

CPC分类号： H04W64/00 ,  G01S5/02 ,  H04W24/00

摘要： A method and apparatus are disclosed for estimating the location of a wireless terminal across multiple building floors. The illustrative embodiment determines the floor where the wireless terminal is presently located by using a majority logic-based heuristic. A plurality of signal monitors measure signals from the wireless terminal and provide those signal strength measurements to a location estimation server. Alternatively, the wireless terminal measures signals that are transmitted by a plurality of transmitting signal devices and provides those signal strength measurements to a location estimation server. The location estimation server determines the floor of the wireless terminal in accordance with the illustrative embodiment of the present invention.

摘要翻译： 公开了一种用于估计无线终端跨多个楼层的位置的方法和装置。 说明性实施例通过使用多数基于逻辑的启发式来确定无线终端当前所在的楼层。 多个信号监视器测量来自无线终端的信号，并将这些信号强度测量值提供给位置估计服务器。 或者，无线终端测量由多个发送信号装置发送的信号，并将这些信号强度测量提供给位置估计服务器。 位置估计服务器根据本发明的说明性实施例来确定无线终端的底线。

公开(公告)号：US20090031399A1

公开(公告)日：2009-01-29

申请号：US12243390

申请日：2008-10-01

申请人： Martin Kappes ,  P. Krishnan

发明人： Martin Kappes ,  P. Krishnan

IPC分类号： G06F21/00

CPC分类号： H04L63/08 ,  H04L63/0876 ,  H04W12/06

摘要： A method and apparatus are provided for authenticating the contents of a device requesting access to a first network, such as an enterprise network. If a device has connected to at least one other network then the content of the device is evaluated prior to obtaining access. The scope of the content evaluation may be based, for example, on properties of the other network or on one or more defined content authentication rules. If a device attempts to access a network, the content of the device is evaluated and the device may be restricted to accessing only one or more restoration services if the content fails to satisfy one or more predefined criteria, such as a content item that is out of date or a determination that the device connected to one or more external networks. The restoration service(s) can update a content item that is out of date, reinstall one or more programs or return configuration settings to default values.

摘要翻译： 提供了一种用于认证请求接入诸如企业网络的第一网络的设备的内容的方法和装置。 如果设备已经连接到至少一个其他网络，则在获得访问之前对设备的内容进行评估。 内容评估的范围可以例如基于另一网络的属性或基于一个或多个定义的内容认证规则。 如果设备尝试访问网络，则评估设备的内容，并且如果内容不能满足一个或多个预定义的标准（例如，出口的内容项目），则设备可能被限制为仅访问一个或多个恢复服务 或确定设备连接到一个或多个外部网络。 恢复服务可以更新过期的内容项目，重新安装一个或多个程序或将配置设置返回到默认值。

公开(公告)号：US20080201418A1

公开(公告)日：2008-08-21

申请号：US11676938

申请日：2007-02-20

申请人： P. Krishnan ,  Jean Meloche

发明人： P. Krishnan ,  Jean Meloche

IPC分类号： G06F15/16

CPC分类号： H04L67/02 ,  G06F17/30861 ,  G06F17/30876 ,  G06F17/30884 ,  H04L61/30

摘要： A technique is disclosed that enables telecommunications endpoints to conveniently share the addressing information—that is, the Uniform Resource Identifiers (URI)—of documents that are available on the World Wide Web. In particular, a server is used to provide a bookmark service. The server acts as a repository of tag-URI pairs, in which each tag functions as a shorthand label for the corresponding URI. In the disclosed technique, a first user creates the tag for the intended URI by assigning a keyword to represent the URI as part of a bookmark tag-URI pair that the server stores. The created tag is presumably shorter than the URI that it represents, making the tag more convenient to use. A second user is then able to retrieve and use the URI by specifying the tag to the bookmark server. In essence, the technique of the illustrative embodiment enables the sharing of Web documents by sharing the bookmarks to those documents.

摘要翻译： 公开了一种技术，其使得电信端点能够方便地共享在万维网上可用的文档的寻址信息 - 即统一资源标识符（URI）。 特别地，服务器用于提供书签服务。 服务器充当标签URI对的存储库，其中每个标签用作相应URI的简写标签。 在所公开的技术中，第一用户通过分配一个关键字来表示该URI作为服务器存储的书签标签 - URI对的一部分来创建用于所需URI的标签。 创建的标签可能比它所代表的URI短，使标签更方便使用。 然后，第二个用户能够通过向书签服务器指定标签来检索和使用URI。 实质上，说明性实施例的技术能够通过将这些文档共享书签来共享Web文档。

公开(公告)号：US20080155520A1

公开(公告)日：2008-06-26

申请号：US11586709

申请日：2006-10-26

申请人： Jean Meloche ,  Shalini Yajnik ,  P. Krishnan ,  Stanko Dimitrov ,  Colin L. Mallows ,  Jon Bentley

发明人： Jean Meloche ,  Shalini Yajnik ,  P. Krishnan ,  Stanko Dimitrov ,  Colin L. Mallows ,  Jon Bentley

IPC分类号： G06F9/45

CPC分类号： H04L41/12 ,  H04L41/06 ,  H04L43/0811

摘要： Systems and methods for constructing and maintaining a peer-to-peer overlay graph are disclosed herein. The systems and methods include adding a node to the overlay graph. Adding the node includes choosing an edge that is not connected to the node, breaking the edge and connecting the node to broken edge nodes previously connected to the edge. The process is repeating if additional connections are need and node addition data is stored for the node.

摘要翻译： 本文公开了用于构建和维护对等覆盖图的系统和方法。 系统和方法包括将一个节点添加到重叠图。 添加节点包括选择未连接到节点的边缘，破坏边缘并将节点连接到先前连接到边缘的断裂边缘节点。 如果需要附加连接并且为节点存储节点添加数据，则该过程正在重复。