公开(公告)号：US08838831B2

公开(公告)日：2014-09-16

申请号：US11742971

申请日：2007-05-01

Applicant: Allan Thomson ,  David S. Stephenson ,  Subhasri Dhesikan ,  Vijayaraghavan Doraiswami ,  Shree Murthy

Inventor： Allan Thomson ,  David S. Stephenson ,  Subhasri Dhesikan ,  Vijayaraghavan Doraiswami ,  Shree Murthy

IPC: H04L12/58 ,  H04L29/08 ,  H04W4/02 ,  H04L29/12

CPC classification number: H04W4/02 ,  H04L29/12226 ,  H04L61/2015 ,  H04L67/18

Abstract: A method for populating location wiremap databases. In particular implementations, a method includes establishing a link layer connection with a client on a switch port, where the switch port is associated with a port identifier and is mapped to a location; identifying one or more connection attributes of the connection, where the connection attributes comprise a network layer address of the client; and transmitting the port identifier and the network layer address of the client to a location server.

Abstract translation: 填充位置线图数据库的方法。 在特定实现中，一种方法包括与交换机端口上的客户端建立链路层连接，其中交换机端口与端口标识符相关联并被映射到一个位置; 识别所述连接的一个或多个连接属性，其中所述连接属性包括所述客户端的网络层地址; 并将客户端的端口标识符和网络层地址发送到位置服务器。

公开(公告)号：US08144600B2

公开(公告)日：2012-03-27

申请号：US11972277

申请日：2008-01-10

Applicant: Allan Thomson ,  Christopher Johnson

Inventor： Allan Thomson ,  Christopher Johnson

IPC: G01R31/08

CPC classification number: H04W24/08

Abstract: In one embodiment, wireless access point management is optimized. The data bandwidth and/or processing requirements for data indicating operation of the access point is baselined. For example, air quality or interference measurements are made at the access point on a regular basis. The interference measurements over one or more periods, such as one period of 24 hours, provide a baseline. Rather than transmitting and processing the subsequent measurements that are normal or within the baseline, a lack of information or data requiring less bandwidth than the measurements communicates to a controller or server that the measurements are normal or within the baseline.

Abstract translation: 在一个实施例中，优化无线接入点管理。 基于接入点的操作的数据带宽和/或处理要求。 例如，在接入点定期进行空气质量或干扰测量。 在一个或多个周期（如24小时的一个周期）内的干扰测量提供基线。 不是发送和处理正常或在基准线内的后续测量，因此缺乏比测量所需的带宽少的信息或数据与测量正常或在基线内的控制器或服务器进行通信。

公开(公告)号：US08018883B2

公开(公告)日：2011-09-13

申请号：US11691041

申请日：2007-03-26

Applicant: Robert A. Bowser ,  Paul J. Stager ,  Allan Thomson ,  Bretton Lee Douglas

Inventor： Robert A. Bowser ,  Paul J. Stager ,  Allan Thomson ,  Bretton Lee Douglas

IPC: H04B7/00 ,  H04W4/00 ,  G06F7/04

CPC classification number: H04L63/1441 ,  H04W12/12 ,  H04W84/10 ,  H04W88/08

Abstract: An apparatus, a method, and logic encoded in computer readable media that when executed operable to carry out the method. The method includes wirelessly receiving at a receiving station a signal transmitted from a transmitting station in a wireless network. The signal includes a network identifier, e.g., MAC address of the transmitting station. The method includes determining one or more RF waveform characteristics of at least a transient part of the received signal, decoding the received signal to determine the network identifier, e.g., MAC address, determining one or more behavior characteristics from the received signal; and using the decoded network identifier, e.g., MAC address and a combination of the one or more waveform characteristics and the one or more behavior characteristics to ascertain whether or not the network identifier, e.g., MAC address is a spoofed identifier, the ascertaining using historical samples of combinations for different network identifiers.

Abstract translation: 一种在计算机可读介质中编码的装置，方法和逻辑，当被执行时可执行该方法。 该方法包括在接收站处无线地接收从无线网络中的发射台发送的信号。 信号包括网络标识符，例如发送站的MAC地址。 该方法包括确定接收信号的至少暂时部分的一个或多个RF波形特性，对接收到的信号进行解码以确定网络标识符，例如MAC地址，从接收到的信号确定一个或多个行为特征; 并且使用解码的网络标识符，例如MAC地址以及一个或多个波形特征和一个或多个行为特征的组合来确定网络标识符（例如，MAC地址是否是欺骗的标识符），使用历史的确定 不同网络标识符的组合样本。

公开(公告)号：US20110176434A1

公开(公告)日：2011-07-21

申请号：US12689840

申请日：2010-01-19

Applicant: Santosh Pandey ,  Allan Thomson ,  Brian Hart ,  Jagdish Girimaji

Inventor： Santosh Pandey ,  Allan Thomson ,  Brian Hart ,  Jagdish Girimaji

IPC: H04L12/26

CPC classification number: H04W48/16 ,  H04W36/08 ,  H04W64/00

Abstract: In an example embodiment, a wireless device is configured to associate with a first access point on a first frequency. The wireless device listens for a predefined frame, which may be sent by neighboring access points or other wireless devices. When the wireless device receives a signal comprising a predefined frame, the wireless device acquires a parameter, such as signal strength, for the signal. The wireless device sends the parameter for the signal to the first access point.

Abstract translation: 在示例实施例中，无线设备被配置为在第一频率上与第一接入点相关联。 无线设备侦听可由相邻接入点或其他无线设备发送的预定义帧。 当无线设备接收到包括预定义帧的信号时，无线设备获取信号的诸如信号强度的参数。 无线设备将信号的参数发送到第一接入点。

公开(公告)号：US07590418B1

公开(公告)日：2009-09-15

申请号：US11336050

申请日：2006-01-20

Applicant: Allan Thomson

Inventor： Allan Thomson

IPC: H04W4/00

CPC classification number: H04L67/22 ,  H04L67/18 ,  H04W4/02 ,  H04W12/12 ,  H04W24/08

Abstract: Methods, apparatuses, and systems directed to processing location and network data in a wireless network. According to one implementation of the present invention, a location server functions both as a middleware data collection engine and a calculation engine in a hierarchical WLAN system. In one implementation, the location server collects network data associated with mobile nodes. As described in further detail below, mobile nodes may include one or more of wireless mobile stations (e.g., wireless laptops, dual-mode phones, personal digital assistants, etc.), radio frequency identification (RFID) tags, rogue wireless access points and rogue wireless clients. In one implementation, the location server may process at least some of the network data to determine information associated with the mobile nodes. For example, the location server may compute the location of a given mobile node, which is accessible to other applications using one or more defined application programming interfaces (APIs). In one implementation, the location server may track the node history of a given mobile node. In one implementation, the location server may correlate processed network information to one or more locations or regions in the wireless network environment. For example, in one implementation, the location server may compute the load (i.e., amount of traffic) in a given region. The load may be used to further compute traffic patterns in the region. Such computations may be based on types of mobile nodes (e.g., wireless clients) and/or based on time periods (e.g., 12 pm-5 pm). As described in more detail below, such information may facilitate management of a wireless network. For example, the processed information may indicate locations that may require deployment of more resources (e.g., additional wireless access points).

Abstract translation: 用于在无线网络中处理位置和网络数据的方法，装置和系统。 根据本发明的一个实施方式，位置服务器在分级WLAN系统中既作为中间件数据收集引擎又用作计算引擎。 在一个实现中，位置服务器收集与移动节点相关联的网络数据。 如下面进一步详细描述的，移动节点可以包括一个或多个无线移动站（例如，无线笔记本电脑，双模式电话，个人数字助理等），射频识别（RFID）标签，流氓无线接入点和 流氓无线客户端。 在一个实现中，位置服务器可以处理至少一些网络数据以确定与移动节点相关联的信息。 例如，位置服务器可以计算给定移动节点的位置，使用一个或多个定义的应用编程接口（API）可以访问给定的移动节点。 在一个实现中，位置服务器可以跟踪给定移动节点的节点历史。 在一个实现中，位置服务器可以将经处理的网络信息与无线网络环境中的一个或多个位置或区域相关联。 例如，在一个实现中，位置服务器可以计算给定区域中的负载（即，流量）。 负载可用于进一步计算该区域中的流量模式。 这样的计算可以基于移动节点（例如，无线客户端）的类型和/或基于时间段（例如，下午12点至下午5点）。 如下面更详细地描述的，这样的信息可以有助于无线网络的管理。 例如，处理的信息可以指示可能需要部署更多资源（例如，附加的无线接入点）的位置。

公开(公告)号：US09989439B2

公开(公告)日：2018-06-05

申请号：US15294064

申请日：2016-10-14

Applicant: Allan Thomson

Inventor： Allan Thomson

IPC: G01B5/28 ,  G01M7/00 ,  G01M13/04 ,  G01N29/44 ,  G01H1/00

CPC classification number: G01M13/045 ,  G01H1/00 ,  G01N29/4463

Abstract: Method for detecting bearing defect severity based on bearing rotation speed and at least one data sample of sensor data obtained to measure vibrations of a bearing ring is provided. The method includes converting the data sample from time domain to frequency domain to obtain a signal frequency spectrum; determining a defect center frequency of the bearing using the rotation speed; and identifying a predetermined number of frequency peaks of the signal frequency spectrum. A total vibration energy in an overall frequency band including the predetermined number of frequency peaks is first determined; next, for each of the frequency peaks, a peak energy as a spectral energy of signal components giving rise to the frequency peaks is determined; calculating a bearing defect spectral energy using the peak energies; and finally a ratio of the bearing defect spectral energy and a total vibration energy to assess a defect severity is obtained.

公开(公告)号：US09661599B2

公开(公告)日：2017-05-23

申请号：US12244980

申请日：2008-10-03

Applicant: Allan Thomson

Inventor： Allan Thomson

IPC: H04W64/00 ,  H04W12/06 ,  H04L29/06

CPC classification number: H04W64/00 ,  H04L63/0823 ,  H04W12/06

Abstract: In an example embodiment, a wireless client sends a probe request frame and waits for responses to the probe frame. The responses to the probe request from comprise encrypted data representative of the signal strength of the client as measured by the respondent that are digitally signed by the respondent's certificate. The client aggregates the responses and forwards them to a location based server.

公开(公告)号：US08406122B2

公开(公告)日：2013-03-26

申请号：US12884615

申请日：2010-09-17

Applicant: Allan Thomson

Inventor： Allan Thomson

IPC: G01R31/08 ,  G06F11/00

CPC classification number: H04W88/08

Abstract: Mesh access point fault reporting. In particular implementations, a method includes receiving a fault indication indicating one or more failures; collecting fault data related to the one or more failures or a state of the mesh access point; and passing the fault data to the RFID tag, which wirelessly transmits messages relating to the fault.

Abstract translation: 网状接入点故障报告。 在具体实现中，一种方法包括：接收指示一个或多个故障的故障指示; 收集与一个或多个故障有关的故障数据或网状接入点的状态; 并将故障数据传递到RFID标签，RFID标签无线传输与故障有关的消息。

公开(公告)号：US08335173B2

公开(公告)日：2012-12-18

申请号：US12168250

申请日：2008-07-07

Applicant: Brian Donald Hart ,  Paul J. Stager ,  Allan Thomson

Inventor： Brian Donald Hart ,  Paul J. Stager ,  Allan Thomson

IPC: H04B7/00

CPC classification number: G01S5/0226

Abstract: A device whose location is to be determined (target device) generates a plurality of frames (messages) and time of departure (TOD) timestamp information indicating when the target device transmits the plurality of frames in a sequence or burst. The target device transmits the plurality of frames and the TOD information, wherein the plurality of frames are transmitted such that at least two of the frames are on different radio frequency (RF) channels. Within a sequence or burst (or across multiple sequences or bursts), multiple widely spaced transmissions on the same channel are included to allow for estimation of the crystal frequency offset of the transmitting device. The TOD information included in the transmitted packets allows devices that receive the packets not to change their channels of operation solely for the purpose of receiving packets from the device to be located.

Abstract translation: 要确定其位置的设备（目标设备）产生指示目标设备何时以序列或突发方式发送多个帧的多个帧（消息）和出发时间（TOD）时间戳信息。 目标设备发送多个帧和TOD信息，其中发送多个帧，使得至少两个帧在不同的射频（RF）信道上。 在序列或突发（或跨多个序列或突发）中，包括相同信道上的多个宽间隔的传输以允许估计发射设备的晶体频率偏移。 包含在所发送的分组中的TOD信息允许接收分组的设备不改变其操作信道，仅用于从要被定位的设备接收分组。

公开(公告)号：US08325914B2

公开(公告)日：2012-12-04

申请号：US11945731

申请日：2007-11-27

Applicant: Joseph Salowey ,  Allan Thomson

Inventor： Joseph Salowey ,  Allan Thomson

IPC: H04L9/00

CPC classification number: H04W12/04 ,  H04L63/0492 ,  H04W88/08

Abstract: Described herein in an example embodiment, is a mechanism to distribute and implement secure credentials on a WLAN (wireless local area network) employing radio frequency identification (RFID) tags. Symmetric keys are provisioned to the tag in a manner that allows for optimized re-association and secure announcements. The provisioned keys are derived in a way that enables the controller to operate without having to maintain the key state for every tag. In an example embodiment, the controller generates keys for the RFID tags that are derived from a master key associated with the controller, an identifier assigned to the RFID tag and an address associated with the RFID tag.

Abstract translation: 在示例实施例中描述的是在使用射频识别（RFID）标签的WLAN（无线局域网）上分发和实现安全凭证的机制。 对称密钥以允许优化的重新关联和安全公告的方式配置到标签。 所提供的密钥的导出方式是使得控制器能够操作而不必维护每个标签的密钥状态。 在示例实施例中，控制器产生从与控制器相关联的主密钥导出的RFID标签的密钥，分配给RFID标签的标识符和与RFID标签相关联的地址。