公开(公告)号：US20240031202A1

公开(公告)日：2024-01-25

申请号：US18256225

申请日：2020-12-07

申请人： Khalifa University of Science and Technology ,  British Telecommunications PLC ,  Emirates Telecommunications Corporation

发明人： James Aweya ,  Nawaf ALMOOSA

IPC分类号： H04L25/02 ,  H04W64/00

CPC分类号： H04L25/0212 ,  H04W64/00

摘要： This invention relates to methods and systems for determining whether a reference point in a location system has changed using the entropy of channel impulse responses. In one embodiment a method of determining whether the location of a first one of a plurality of reference points used in a location system has changed is provided. The reference points each have a known initial position and the method includes the steps of: estimating a channel impulse response of a wireless channel between the first reference point and a second of said plurality of reference points; determining the difference between the estimated channel impulse response and a previously-estimated channel impulse response of the wireless channel; estimating an entropy of the difference between the channel impulse responses; and determining, from said comparison, whether the location of the first reference point has changed. In another embodiment the method includes the steps of: estimating an entropy of the channel impulse response of a wireless channel between the first reference point and a second of said plurality of reference points; comparing the estimated entropy to a previously-estimated entropy for the channel impulse response of the wireless channel; determining, from said comparison, whether the location of the first reference point has changed.

公开(公告)号：US09897987B2

公开(公告)日：2018-02-20

申请号：US14386714

申请日：2013-03-19

申请人： BRITISH TELECOMMUNICATIONS public limited company

发明人： Behnam Azvine ,  Trevor Philip Martin

IPC分类号： G06K9/00 ,  H04H60/45 ,  G05B15/02

CPC分类号： G05B15/02 ,  G06K9/00335 ,  G06K9/00496 ,  H04H60/45

摘要： A system controller (20, 100, 30, 40) comprises a receiver (20) for receiving data about a system (10, 11) to be controlled and for associating the received data with a time factor; a summarizer (100) for updating a set of summary bins, each of which covers a respective period of time, and each of which stores a summary of the received data having, a time factor which falls within the respective period of time covered by the summary bin; a processor (30) for, processing the summary bins, for example in order to categorize an unknown entity (5) (such as a human user) interacting with the system under control (10, 11) (via a user interface (11) forming part of the system under control) such as into an adult interested in football, etc., and a director (40) for issuing control instructions to the system to be controlled based on the results of the processor (30). The periods of time covered by respective summary bins include overlapping periods of time and periods of time having different durations and are preferably overlapping, fuzzy, multi-scale bins.

公开(公告)号：US09838018B2

公开(公告)日：2017-12-05

申请号：US15190540

申请日：2016-06-23

申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

发明人： Robert Ghanea-Hercock

IPC分类号： H03K19/00 ,  H03K19/04 ,  H01J21/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  B23K26/342 ,  B22F3/105 ,  B22F5/00 ,  B23K15/00 ,  B23K26/00 ,  C04B35/622 ,  H03K19/20 ,  B29C64/106 ,  B29C64/153 ,  B23K101/42 ,  B23K103/08

CPC分类号： H03K19/04 ,  B22F3/1055 ,  B22F5/00 ,  B22F2301/05 ,  B22F2998/10 ,  B23K15/0086 ,  B23K15/0093 ,  B23K26/0006 ,  B23K26/342 ,  B23K2101/42 ,  B23K2103/08 ,  B29C64/106 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  C04B35/62218 ,  C04B35/62222 ,  H01J21/20 ,  H03K19/20

摘要： An additively manufactured apparatus having a gas filled sealed cavity containing at least two additively manufactured cathodes and an additively manufactured anode spaced from the cathodes such that a continuous electric discharge of the gas stimulated between at least one of the cathodes and the anode provides a Boolean function output at the anode corresponding to electrical input signals at two of the cathodes.

公开(公告)号：US09836600B2

公开(公告)日：2017-12-05

申请号：US14781163

申请日：2014-03-31

申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

发明人： Ian Herwono ,  Zhan Cui

IPC分类号： G06F11/00 ,  G06F21/55 ,  H04L29/06

CPC分类号： G06F21/554 ,  G06F2221/034 ,  H04L63/1416 ,  H04L63/1458

摘要： A multi-stage event detector for monitoring a system, the multi-stage event detector including: a process generator operable to generate main and sub-processes, each main and sub-process being operable to generate and initiate a detection agent each of which is operable to be triggered by detecting the occurrence of a trigger event and to report back to its generating process or sub-process upon being so triggered. Each process or sub-process is operable to respond to receipt of a report from a triggered detection agent by reporting the detection of a multi-stage event to an overall controller.

公开(公告)号：US09715525B2

公开(公告)日：2017-07-25

申请号：US13929870

申请日：2013-06-28

申请人： Khalifa University of Science, Technology, and Research ,  British Telecommunications plc ,  Emirates Telecommunications Corporation

发明人： Quang Hieu Vu ,  Rasool Asal

IPC分类号： G06F17/30

CPC分类号： G06F17/30451 ,  G06F17/30716 ,  G06F17/30985

摘要： This invention relates to methods for storing and searching data. Embodiments of the invention make use of suffix trees to support binary pattern matching. Embodiments of the invention can be shown to have comparable search speeds to searches of known suffix trees, but are advantageous in that they have lower memory usage requirements which is important in large data environments.

公开(公告)号：US09712422B2

公开(公告)日：2017-07-18

申请号：US14009211

申请日：2012-03-16

申请人： Trevor Burbridge ,  Andrea Soppera

发明人： Trevor Burbridge ,  Andrea Soppera

IPC分类号： G06F15/173 ,  H04L12/701 ,  H04L29/12 ,  H04L29/08 ,  H04L12/911

CPC分类号： H04L45/00 ,  H04L47/70 ,  H04L61/1511 ,  H04L67/1021 ,  H04L67/125 ,  H04L67/16 ,  H04L67/2842

摘要： Methods and apparatus are disclosed for enabling selection of a remote service node from a plurality of possible nodes, each capable of providing a service, and each associated with a service node control entity. The method comprises: receiving a user request in respect of a service required by a user, the request containing a first user device routing identifier relating to the location in the network of the user device, and a service indication indicative of an appropriate service provider; identifying from the service indication a service node control entity associated with the service provider; sending to the service node control entity a service node request containing a second user device routing identifier differing from the first user device routing identifier but selected at least partly in dependence thereon; receiving from the service node control entity an indication of a remote service node capable of providing the required service; and providing an indication of the remote service node to the user device.

公开(公告)号：US09639575B2

公开(公告)日：2017-05-02

申请号：US13435747

申请日：2012-03-30

申请人： Marcello Leida ,  Ali Afzal ,  Paul Taylor ,  Basim Majeed

发明人： Marcello Leida ,  Ali Afzal ,  Paul Taylor ,  Basim Majeed

IPC分类号： G06F17/00 ,  G06F17/30

CPC分类号： G06F17/30427 ,  G06F17/30448

摘要： The invention relates to a method and system that provide a high performance and extremely scalable triple store within the Resource Description Framework (or alternative data models), with optimized query execution. An embodiment of the invention provides a data storage and analysis system to support scalable monitoring and analysis of business processes along multiple configurable perspectives and levels of granularity. This embodiment analyses data from processes that have been already executed and from ongoing processes, as a continuous flow of information. This embodiment provides defining and monitoring processes based on no initial domain knowledge about the process and such that the process will be built only from the incoming flow of information. Another embodiment of the invention provides a grid infrastructure that allows storage of data across many grid nodes and distribution of the workload, avoiding the bottleneck represented by constantly querying a database.

公开(公告)号：US09571657B2

公开(公告)日：2017-02-14

申请号：US14432000

申请日：2013-09-20

申请人： BRITISH TELECOMMUNICATIONS public limited company

发明人： Gerard Patrick Sherlock

IPC分类号： H04M1/64 ,  H04M3/533 ,  H04M3/42 ,  H04M3/436 ,  H04M3/537 ,  H04M3/54 ,  H04M3/58

CPC分类号： H04M3/53333 ,  H04M3/42238 ,  H04M3/436 ,  H04M3/537 ,  H04M3/54 ,  H04M3/58 ,  H04M2203/2044 ,  H04M2203/4545

摘要： A shared voicemail system and method of operation in which the system comprises a computer processor configured in use to store a voice message received from a third party; in which the stored voice message is accessible to each user of a plurality of users of the shared voicemail system. The computer processor also configured in use to provide a copy of the stored message to a first user of the plurality of users, receive an indication from the first user that the message is intended to be accessed by a second user of the plurality of users and to provide a notification prompting the second user to access the message. In an embodiment, the voice message received from the third party is part of a call redirected to the shared voicemail system from a phone line shared by the plurality of users.

摘要翻译： 一种共享语音邮件系统和操作方法，其中所述系统包括被配置为用于存储从第三方接收的语音消息的计算机处理器; 其中存储的语音消息可以被共享语音邮件系统的多个用户的每个用户访问。 计算机处理器还被配置为用于向多个用户的第一用户提供存储的消息的副本，从第一用户接收指示消息将被多个用户的第二用户接入， 以提供提示第二用户访问消息的通知。 在一个实施例中，从第三方接收的语音消息是从多个用户共享的电话线重定向到共享语音邮件系统的呼叫的一部分。

公开(公告)号：US09301078B2

公开(公告)日：2016-03-29

申请号：US12594707

申请日：2008-02-15

申请人： Timothy J Twell

发明人： Timothy J Twell

IPC分类号： H04M3/42 ,  H04W4/00 ,  H04W28/06 ,  H04W48/16 ,  H04W84/18 ,  H04W52/02

CPC分类号： H04W4/00 ,  H04W28/06 ,  H04W48/16 ,  H04W52/0229 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/23

摘要： A piconet communications system (e.g. Bluetooth®) is used to distribute information to mobile user devices 1 which advertise (10) that they require the information available. In a reversal of the conventional information provision protocols, the information provider 2 scans for user devices receptive to such data (21), and transmit the required data (27), only to such devices that require it. The information provider 2 also has provision to ensure that it transmits the information to each user device only once (step 26). By having the information provider performing the scanning, and only transmitting data to user devices that have indicated they will accept it, and have not already received it, the power consumption of the mobile devices is minimized as they do not need to perform any scanning or information-filtering operations, these being performed by the fixed information provider terminal.

摘要翻译： 微微网通信系统（例如蓝牙）用于将信息分发给移动用户设备1，移动用户设备1通告（10）他们需要可用信息。 在传统的信息提供协议的逆转中，信息提供商2扫描接受这种数据（21）的用户设备，并将所需的数据（27）仅发送到需要它们的设备。 信息提供者2还具有确保仅将信息发送到每个用户设备一次的规定（步骤26）。 通过使信息提供者执行扫描，并且仅向已经指示它们将接受扫描的用户设备传送数据，并且尚未接收到它们，移动设备的功率消耗被最小化，因为它们不需要执行任何扫描或 信息过滤操作，这些操作由固定信息提供者终端执行。

公开(公告)号：US09178637B2

公开(公告)日：2015-11-03

申请号：US14100345

申请日：2013-12-09

申请人： Khalifa University of Science, Technology, and Research ,  British Telecommunications plc ,  Emirates Telecommunications Corporation

发明人： James Aweya

IPC分类号： H04J3/06 ,  H04L7/033

CPC分类号： H04J3/0602 ,  H04J3/0667 ,  H04L7/033

摘要： This invention relates to methods and devices for synchronization using linear programming, especially over packet networks using, for example, the IEEE 1588 Precision Time Protocol (PTP). Timing protocol messages are exposed to artifacts in the network such as packet delay variations (PDV) or packet losses. Embodiments of the invention provide a two-dimensional linear programming technique for estimating clock offset and skew, particularly from two-way exchange of timing messages between a master and a slave device. Some embodiments include a skew and offset adjustable free-running counter for regenerating the master time and frequency at the slave device.

摘要翻译： 本发明涉及使用线性规划进行同步的方法和装置，特别是使用例如IEEE 1588精确时间协议（PTP）的分组网络。 定时协议消息暴露在网络中的伪影，例如分组延迟变化（PDV）或分组丢失。 本发明的实施例提供了一种用于估计时钟偏移和偏移的二维线性规划技术，特别是从主设备和从设备之间的定时消息的双向交换。 一些实施例包括用于在从设备处再生主时间和频率的偏斜和偏移可调自由运行计数器。