公开(公告)号：US20060007878A1

公开(公告)日：2006-01-12

申请号：US10888691

申请日：2004-07-09

Applicant: Xiaode Xu ,  David Stephenson ,  Wenfeng Huang ,  Huizhao Wang ,  Arnold Bilstad

Inventor： Xiaode Xu ,  David Stephenson ,  Wenfeng Huang ,  Huizhao Wang ,  Arnold Bilstad

IPC: H04Q7/00

CPC classification number: H04W28/18 ,  H04W24/00 ,  H04W36/08

Abstract: An apparatus and method for switching a mobile processing device from communicating over a wireless connection with a first base unit to a second base unit based upon latency. In accordance with this invention, the mobile processing device determines latency information for packets being transmitted over the wireless connection to and from a base unit. The latency information is compared to a threshold value. If the latency information is greater than the threshold value, the mobile processing device adjusts parameters of the wireless connection between the mobile processing device and the network.

Abstract translation: 一种用于基于等待时间来切换移动处理设备以通过无线连接与第一基站单元切换到第二基本单元的装置和方法。 根据本发明，移动处理设备确定通过无线连接发往和从基站发送的分组的等待时间信息。 等待时间信息与阈值进行比较。 如果延迟信息大于阈值，则移动处理装置调整移动处理装置与网络之间的无线连接的参数。

公开(公告)号：US06359923B1

公开(公告)日：2002-03-19

申请号：US08993721

申请日：1997-12-18

Applicant: Brian G. Agee ,  Matthew Bromberg ,  Derek Gerlach ,  David Gibbons ,  James Timothy Golden ,  Minnie Ho ,  Elliott Hoole ,  Mary Jesse ,  Robert Lee Maxwell ,  Robert G. Mechaley, Jr. ,  Robert Ray Naish ,  David J. Nix ,  David James Ryan ,  David Stephenson

Inventor： Brian G. Agee ,  Matthew Bromberg ,  Derek Gerlach ,  David Gibbons ,  James Timothy Golden ,  Minnie Ho ,  Elliott Hoole ,  Mary Jesse ,  Robert Lee Maxwell ,  Robert G. Mechaley, Jr. ,  Robert Ray Naish ,  David J. Nix ,  David James Ryan ,  David Stephenson

IPC: A61F206

CPC classification number: H04B1/69 ,  H04B1/692 ,  H04B1/707 ,  H04B1/7107 ,  H04B7/04 ,  H04B2201/70702 ,  H04L5/0021 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/026 ,  H04L25/0228 ,  H04L25/03019 ,  H04L27/186 ,  H04L27/3416 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W16/14 ,  H04W88/08

Abstract: A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective rev transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.

Abstract translation: 离散多媒体叠层载波扩频通信方法是基于频域扩展，包括基带信号乘以叠加的或叠加的复数正弦波载波的集合。 在优选实施例中，扩展涉及激励大的快速傅立叶变换（FFT）的信息仓。 这为中等输出FFT大小节省了大量的计算复杂度。 点对多点和多点到多点（无节点）网络拓扑是可能的。 通过利用各种光源的光谱多样性，可以包括一个代码归零方法用于干扰消除和增强的信号分离。 基本方法可以扩展为包括用于干扰消除的多元天线阵列归零方法和使用空间分离的增强信号分离。 这种方法允许适应或可以适应于无线电环境的指令和逆向转发传输系统。 这样的系统与带宽按需和高阶调制格式兼容，并且使用高级适配算法。 在具体实施例中，基于空中链路的频谱和空间描述之间的数学类比，以统一的操作来计算自适应权重的频谱和空间分量。

公开(公告)号：US08625507B1

公开(公告)日：2014-01-07

申请号：US12932801

申请日：2011-03-07

Applicant: Ozgur Gurbuz ,  David Pignatelli ,  David Stephenson ,  Eldad Perahia ,  Bretton Douglas ,  Ender Ayanoglu

Inventor： Ozgur Gurbuz ,  David Pignatelli ,  David Stephenson ,  Eldad Perahia ,  Bretton Douglas ,  Ender Ayanoglu

IPC: H04W4/00 ,  H04J3/16

CPC classification number: H04B7/0689 ,  H04B7/0413 ,  H04B7/0628 ,  H04B7/0871 ,  H04W28/22 ,  H04W84/12

Abstract: An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block transmits a message to an access point indicating that the apparatus wants to switch between a non-MIMO mode and a MIMO mode, and upon receiving an acknowledgement, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.

Abstract translation: 公开了一种用于操作多输入多输出（MIMO）能力的用户节点的装置和方法。 在一个实施例中，一种装置包括MIMO能力的物理层收发机和媒体接入控制（MAC）层块，其测量接收到的传输以确定信道状况。 在接收到所述信道条件满足指定条件的传输时，MAC层块向接入点发送指示设备在非MIMO模式和MIMO模式之间切换的消息，并且在接收到确认时，MAC层 在非MIMO模式和MIMO模式之间进行块切换。 还公开了一种用于操作接入节点的装置。

公开(公告)号：US08566596B2

公开(公告)日：2013-10-22

申请号：US12862149

申请日：2010-08-24

Applicant: David Stephenson ,  Esteban Raul Torres ,  Joseph Salowey ,  Chetin Ersoy ,  Nancy Cam-Winget

Inventor： David Stephenson ,  Esteban Raul Torres ,  Joseph Salowey ,  Chetin Ersoy ,  Nancy Cam-Winget

IPC: H04L9/32

CPC classification number: G06Q30/0267 ,  G06Q30/0241 ,  H04L63/0823 ,  H04L63/12 ,  H04L63/1441 ,  H04W4/21 ,  H04W12/10 ,  H04W12/12 ,  H04W48/14

Abstract: In an example embodiment, an apparatus comprising a transceiver configured to send and receive data and logic coupled to the transceiver. The logic is configured to determine from a signal received by the transceiver whether an associated device sending the signal supports a protocol for advertising available services. The logic is configured to send a request for available services from the associated device via the transceiver responsive to determining the associated device supports the protocol. The logic is configured to receive a response to the request via the transceiver, the response comprising at least one service advertisement and a signature. The logic is configured to validate the response by confirming the signature.

Abstract translation: 在示例实施例中，一种包括收发器的装置，其被配置为发送和接收耦合到收发器的数据和逻辑。 该逻辑被配置为根据收发机接收的信号确定发送信号的相关设备是否支持用于广告可用服务的协议。 逻辑被配置为响应于确定相关联的设备支持协议，经由收发机从相关联的设备发送可用服务的请求。 逻辑被配置为经由收发器接收对请求的响应，该响应包括至少一个服务广告和签名。 该逻辑被配置为通过确认签名来验证响应。

公开(公告)号：US08510814B2

公开(公告)日：2013-08-13

申请号：US12023328

申请日：2008-01-31

Applicant: Warren Pratte ,  David Stephenson

Inventor： Warren Pratte ,  David Stephenson

IPC: G06F7/04 ,  G06F15/16 ,  G06F17/30 ,  G06F12/00 ,  G06F12/14 ,  G06F13/00 ,  H04L29/06 ,  G11C7/00

CPC classification number: G06F21/316 ,  G06F21/36

Abstract: A method and apparatus are provided to enable a server to determine if a client connecting to the server is doing so by means of human user interaction, as opposed to an automated process. In order to authorize access to services, the option of determining user identity, such as by means of a graphical shared secret, is also provided. Three aspects are described: (i) image formation from an object model; (ii) presentation of image choices to a user, and (iii) user action. Image formation includes the creation of one or more categorized 2-dimensional images with object regions for each image automatically qualified. These one or more categorized images can be created by means of a Randomizable Image Generation Object for Human Recognition, comprised of (i) a 3-dimensional object model, (ii) a plurality of rendering threshold and constraint parameters, and (iii) categorization and qualitative metadata. The one or more 2-dimensional images are preferably transmitted to the user for authentication without the image metadata, which may be retained on the server. Related inquiry text can be sent when human user interaction is being determined and not user identity authentication.

Abstract translation: 提供了一种方法和装置，以使服务器能够确定连接到服务器的客户端是否通过人类用户交互来实现，而不是自动化过程。 为了授权访问服务，还提供了诸如通过图形共享秘密来确定用户身份的选项。 描述三个方面：（i）从对象模型形成图像; （ii）向用户呈现图像选择，以及（iii）用户动作。 图像形成包括创建一个或多个分类的二维图像与每个图像自动限定的对象区域。 这些一个或多个分类的图像可以通过用于人类识别的可随机图像生成对象来创建，包括（i）三维对象模型，（ii）多个渲染阈值和约束参数，以及（iii）分类 和定性元数据。 优选地，一个或多个二维图像被发送给用户进行认证，而不需要保留在服务器上的图像元数据。 在确定人类用户交互时，可以发送相关查询文本，而不是用户身份认证。

公开(公告)号：US08396956B2

公开(公告)日：2013-03-12

申请号：US12892974

申请日：2010-09-29

Applicant: Allan Thomson ,  David Stephenson ,  Rohit Suri

Inventor： Allan Thomson ,  David Stephenson ,  Rohit Suri

IPC: G06F15/173

CPC classification number: H04W8/12 ,  H04W8/06 ,  H04W24/04

Abstract: Described in an example embodiment herein is a Mobility Service Engine (MSE) cluster comprising an MSE Cluster Master and at least one MSE Cluster Slave. The MSE Master is configured to define Network Service Segments. The MSE Master of the cluster distributes the Network Service Segments to slaves within the cluster. The network is configured to forward data to the correct Network Service Segment.

Abstract translation: 在本文的示例实施例中描述的是包括MSE群集主机和至少一个MSE群集从站的移动性服务引擎（MSE）群集。 MSE Master被配置为定义网络服务段。 群集的MSE主站将网络服务段分配到群集中的从站。 网络配置为将数据转发到正确的网络服务段。

公开(公告)号：US20120181732A1

公开(公告)日：2012-07-19

申请号：US13324729

申请日：2011-12-13

Applicant: David Stephenson ,  Grant Adams ,  David H. Grant ,  Neil Andrew Abercrombie Simpson

Inventor： David Stephenson ,  Grant Adams ,  David H. Grant ,  Neil Andrew Abercrombie Simpson

IPC: B29C55/24

CPC classification number: E21B43/105 ,  B21D39/08 ,  Y10S425/218 ,  Y10T29/49908

Abstract: A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.

Abstract translation: 管道膨胀装置适于通过待扩张的管线轴向前进而不旋转。 该装置包括主体和安装在主体上的多个膨胀构件，该膨胀构件可独立地径向移动。 膨胀构件可以是可旋转的，或者可以是不旋转的。

公开(公告)号：US20120106463A1

公开(公告)日：2012-05-03

申请号：US12917846

申请日：2010-11-02

Applicant: Michael McBride ,  Subhasri Dhesikan ,  Neil Diener ,  David Stephenson ,  Rajneesh Kumar

Inventor： Michael McBride ,  Subhasri Dhesikan ,  Neil Diener ,  David Stephenson ,  Rajneesh Kumar

IPC: H04W28/00 ,  H04L12/56 ,  H04W72/00

CPC classification number: H04W28/24 ,  H04W28/26

Abstract: Described in an example embodiment is an end-to-end admission control system that allows any rich media application to secure admission control in an environment where there are mixed wireless and wired segments in the network. In particular embodiments, the system includes the integration of Add Traffic Stream (ADDTS) and Resource Reservation Protocol (RSVP) admission control mechanisms, the mapping of parameters between these two mechanisms, the admission control policies, and failure handling for the end-to-end resource control.

Abstract translation: 在示例实施例中描述的是允许任何富媒体应用程序在网络中存在混合无线和有线段的环境中确保准入控制的端对端许可控制系统。 在特定实施例中，系统包括添加业务流（ADDTS）和资源预留协议（RSVP）准入控制机制的集成，这两种机制之间的参数映射，接纳控制策略以及终端 - 结束资源控制。

公开(公告)号：US20070107195A1

公开(公告)日：2007-05-17

申请号：US11567108

申请日：2006-12-05

Applicant: David Stephenson ,  Grant Adams ,  David Grant ,  Neil Andrew Simpson

Inventor： David Stephenson ,  Grant Adams ,  David Grant ,  Neil Andrew Simpson

IPC: B23P11/00

CPC classification number: E21B43/105 ,  B21D39/08 ,  Y10S425/218 ,  Y10T29/49908

Abstract: A tubing expansion device is adapted to be advanced axially, without rotation, through tubing to be expanded. The device comprises a body and a plurality of expansion members mounted on the body, the expansion members being independently radially movable. The expansion members may be rotatable, or may be non-rotating.

Abstract translation: 管道膨胀装置适于通过待扩张的管线轴向前进而不旋转。 该装置包括主体和安装在主体上的多个膨胀构件，该膨胀构件可独立地径向移动。 膨胀构件可以是可旋转的，或者可以是不旋转的。

公开(公告)号：US20070014267A1

公开(公告)日：2007-01-18

申请号：US11182206

申请日：2005-07-15

Applicant: Alex Lam ,  Brian Hart ,  Mark Krischer ,  David Stephenson

Inventor： Alex Lam ,  Brian Hart ,  Mark Krischer ,  David Stephenson

IPC: H04Q7/24

CPC classification number: H04W48/10 ,  H04W84/12

Abstract: A method, apparatus, and software containing computer readable code to implement the method implemented in a first wireless device. The method includes, for a particular network identifier active in a wireless network, transmitting frames configured to advertise the infrastructure network of the particular network identifier. The transmitting of off-channel beacons is in a provided channel different than the channel in which the access point of the infrastructure wireless of the particular network identifier transmits beacon frames. The transmitting of off-channel beacons further is at a rate higher than the beacon rate frame at which the access point of the infrastructure wireless of the particular network identifier transmits beacon frames.

Abstract translation: 一种包含用于实现在第一无线设备中实现的方法的计算机可读代码的方法，装置和软件。 该方法包括：对于在无线网络中活动的特定网络标识符，发送被配置为通告该特定网络标识符的基础设施网络的帧。 离线信标的发送处于与特定网络标识符的基础设施无线接入点发送信标帧的信道不同的提供信道中。 进一步发送离开信道信标的速率高于特定网络标识符的基础设施无线接入点发送信标帧的信标速率帧的速率。