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1. 发明专利

JP2012142956A Transmitting and receiving real-time data 有权
标题翻译：发送和接收实时数据
公开(公告)号：JP2012142956A
公开(公告)日：2012-07-26
申请号：JP2012026249
申请日：2012-02-09
申请人： British Telecommunications Plc , ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company
发明人： MATTHEW DAVID WALKER , RICHARD JAMES JACOBS , MICHAEL ERLING NILSSON
IPC分类号： H04L12/56 , H04N7/32 , H04L13/08 , H04L29/06 , H04N7/24
CPC分类号： H04L65/607 , H04L29/06027 , H04L65/1083 , H04L65/80 , H04N21/23406 , H04N21/23439 , H04N21/2402 , H04N21/4384 , H04N21/44209 , H04N21/47202 , H04N21/6373 , H04N21/6375 , H04N21/64322
摘要： PROBLEM TO BE SOLVED: To build up in a packet network a reservoir of data in order to view streamed video data, thereby reducing the effect of jitter, caused by variations in the inter-arrival times of packets of data.SOLUTION: Video streamed without the start-up delay is provided by transmitting data from a video streamer 2 to a video viewer more rapidly than the consumption of data by the video viewer and using the excess data to build a buffer at the video viewer. When a suitable sized buffer is built, the transmission rate of data to the buffer may be reduced. In order to deliver the best quality data for the available bandwidth, the supply of video data may be switched to a higher bit-rate source when the reservoir is filled.
摘要翻译：要解决的问题：为了在分组网络中建立数据存储池，以便观看流视频数据，从而减少由数据包的到达间隔时间变化引起的抖动的影响。解决方案：通过从视频流分录器2将数据从视频观看者的数据消耗更快地传输到视频观看者，并使用多余的数据在视频中构建缓冲区来提供没有启动延迟的视频流观众。当构建适当的大小的缓冲器时，可以减少到缓冲器的数据传输速率。为了提供可用带宽的最佳质量数据，当存储器被填充时，可以将视频数据的供应切换到较高的比特率源。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011193512A Transmitting recorded material 审中-公开
标题翻译：发送记录材料
公开(公告)号：JP2011193512A
公开(公告)日：2011-09-29
申请号：JP2011103804
申请日：2011-05-06
申请人： British Telecommunications Plc , ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company
发明人： ALVAREZ AREVALO ROBERTO , TURNBULL RORY STEWART
IPC分类号： H04N7/173 , H04L12/801 , H04L12/815 , H04L29/06 , H04N7/26 , H04N7/50
CPC分类号： H04L65/4084 , H04L47/10 , H04L47/22 , H04L65/607 , H04N19/188 , H04N19/44 , H04N19/61 , H04N21/23406 , H04N21/2401 , H04N21/6332 , H04N21/64322 , H04N21/6587
摘要： PROBLEM TO BE SOLVED: To enable smooth real-time playback in a receiver through distribution over a network. SOLUTION: Recorded material such as video is transmitted in compressed form to a receiver, which has a buffer for smoothing differences between the data rate received and that consumed by a decoder that follows. The whole of the recording is analyzed to determine a point at which to commence playing such that no buffer underflow can occur, and the decoder commences playback only when this point has been reached. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过网络分发在接收机中实现平滑的实时播放。解决方案：诸如视频的记录材料以压缩形式传送到接收器，接收器具有用于平滑接收到的数据速率与随后的解码器消耗的数据速率之间的差异的缓冲器。分析整个记录以确定开始播放的点，使得不会发生缓冲器下溢，并且解码器仅在达到该点时开始播放。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011150711A Media article constitution 有权
标题翻译：媒体文章
公开(公告)号：JP2011150711A
公开(公告)日：2011-08-04
申请号：JP2011041643
申请日：2011-02-28
申请人： British Telecommunications Plc , ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company
发明人： STEVENS TIMOTHY SEAN , PALMER ALEX STEVEN JOHN , KEGEL IAN CHRISTOPHER , THORNE JEREMY MICHAEL , LIM LOUIE KOK SENG , LOHSE LUDVIG , RUSS MARTIN , MORPHETT JASON , HAY ADAM
IPC分类号： G06F12/00
CPC分类号： G06F17/30817 , G06F17/30038 , G06F17/30828 , G06F17/30867 , G11B27/034
摘要： PROBLEM TO BE SOLVED: To provide a method for automatically constituting media articles.
SOLUTION: The method improves a list display of media types by making metadata 51 associated with a media element in a content storage device. Since the metadata include relationship data indicating a relation between an article expressed by the media element and an article described by one or more other media elements, the media articles can generate automatically a detailed framework describing the media articles.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种自动构成媒体物品的方法。解决方案：该方法通过使与内容存储设备中的媒体元素相关联的元数据51来改进媒体类型的列表显示。由于元数据包括指示由媒体元素表达的物品与由一个或多个其它媒体元素描述的物品之间的关系的关系数据，所以媒体文章可以自动生成描述媒体文章的详细框架。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2012090281A Communications network 审中-公开
标题翻译：通讯网络
公开(公告)号：JP2012090281A
公开(公告)日：2012-05-10
申请号：JP2011248803
申请日：2011-11-14
申请人： British Telecommunications Plc , ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company
发明人： RICHARD JOHN MELLISH KETT , JEREMY RODGER MASON
IPC分类号： H04M3/42 , H04M3/00 , H04M7/06 , H04Q3/00
CPC分类号： H04Q3/0054
摘要： PROBLEM TO BE SOLVED: To make network resources available to service providers other than the network operator, while maintaining the security and integrity of the network.SOLUTION: A registration server in a network implementing an API (application programming interface) authenticates services and provides discovery of network resources, prior to registering services with selected network resources. Multiple instances of services and/or multiple service nodes are registered in a single service agreement.
摘要翻译：要解决的问题：为了使网络资源可用于网络运营商以外的服务提供商，同时保持网络的安全性和完整性。解决方案：在使用所选网络资源注册服务之前，实现API（应用程序编程接口）的网络中的注册服务器对服务进行认证并提供网络资源的发现。服务和/或多个服务节点的多个实例被注册在单个服务协议中。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2014090446A Communication network 有权
标题翻译：通信网络
公开(公告)号：JP2014090446A
公开(公告)日：2014-05-15
申请号：JP2013249659
申请日：2013-12-02
申请人： British Telecommunications Plc , ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニーBritish Telecommunications Public Limited Company
发明人： RICHARD JOHN MELLISH KETT , JEREMY RODGER MASON
IPC分类号： H04M3/42 , H04M3/00 , H04Q3/00
CPC分类号： H04Q3/0054
摘要： PROBLEM TO BE SOLVED: To provide a registration server and other components for implementing a programmable interface to resources in a network.SOLUTION: A registration server, in a network implementing an application programming interface (API), authenticates services and provides discovery of network resources, prior to registration of the services to selected network resources. A plurality of instances of the services and/or a plurality of service nodes are registered in single service agreement.
摘要翻译：要解决的问题：提供注册服务器和其他组件，用于为网络中的资源实现可编程接口。解决方案：在实现应用程序编程接口（API）的网络中的注册服务器认证服务并提供网络资源的发现在将服务注册到所选网络资源之前。服务和/或多个服务节点的多个实例被登记在单一服务协议中。

6. 发明申请

WO2017144108A1 METHODS AND SYSTEMS FOR ESTIMATING SKEW 审中-公开
标题翻译：用于估计偏差的方法和系统
公开(公告)号：WO2017144108A1
公开(公告)日：2017-08-31
申请号：PCT/EP2016/054027
申请日：2016-02-25
申请人： KHALIFA UNIVERSITY OF SCIENCE, TECHNOLOGY, AND RESEARCH , BRITISH TELECOMMUNICATIONS PLC , EMIRATES TELECOMMUNICATIONS CORPORATION
发明人： AWEYA, James , BOYD, Ivan
IPC分类号： H04L7/033 , H04J3/06
CPC分类号： H04J3/0664 , H03L7/0994 , H03L7/18 , H03L2207/50
摘要： This invention relates to methods and systems for estimating skew based on, for example, the IEEE 1588 Precision Time Protocol (PTP). These methods and systems can allow the clock skew between a master clock (server) and slave clock (client) exchanging PTP messages over a packet network to be estimated. In one embodiment, the slave employs a digital phase-locked loop (DPLL) driven by timestamps supplied from a master clock. The slave is able to process the timestamp information embedded in PTP Sync and Follow_Up messages in order to lock its frequency to that of the master clock. In certain embodiments a frequency locked DPLL and a local free-running counter are used to estimate the skew of the local slave oscillator.
摘要翻译：本发明涉及用于基于例如IEEE 1588精确时间协议（PTP）来估计偏斜的方法和系统。这些方法和系统可以允许估计在分组网络上的主时钟（服务器）和从时钟（客户端）之间交换PTP消息的时钟偏差。在一个实施例中，从设备采用由主时钟提供的时间戳驱动的数字锁相环（DPLL）。从机能够处理嵌入在PTP Sync和Follow_Up消息中的时间戳信息，以便将其频率锁定在主时钟频率上。在某些实施例中，频率锁定的DPLL和本地自由运行计数器被用于估计本地从振荡器的偏斜。

7. 发明申请

WO2016092242A1 METHOD AND DEVICES FOR CLOCK SYNCHRONIZATION OVER LINKS WITH ASYMMETRIC TRANSMISSION RATES 审中-公开
标题翻译：用不对称传输速率链接的时钟同步的方法和设备
公开(公告)号：WO2016092242A1
公开(公告)日：2016-06-16
申请号：PCT/GB2014/053673
申请日：2014-12-11
申请人： KHALIFA UNIVERSITY OF SCIENCE, TECHNOLOGY, AND RESEARCH , BRITISH TELECOMMUNICATIONS PLC , EMIRATES TELECOMMUNICATIONS CORPORATION
发明人： AWEYA, Dr James
IPC分类号： H04J3/06
CPC分类号： H04J3/0667
摘要： This invention relates to methods and devices for clock synchronization. The invention has particular application in the alignment of slave clocks to a master clock and in dealing with transmission delay asymmetries where the forward and reverse communication paths between the master and slave clocks have asymmetric transmission rates. Such methods and devices have particular application in small cell backhaul solutions for 4G/LTE deployments. In embodiments of the invention, the slave clock uses link rate information to estimate the transmission delay asymmetry and thus estimate the offset and skew of the slave clock. Embodiments provide a simple linear approximation technique and a Kalman filter-based technique for estimating offset and skew of the slave clock.
摘要翻译：本发明涉及时钟同步的方法和装置。本发明特别适用于将从时钟对准主时钟，并且处理传输延迟不对称，其中主时钟和从时钟之间的正向和反向通信路径具有不对称的传输速率。这样的方法和设备在用于4G / LTE部署的小型小区回程解决方案中具有特别的应用。在本发明的实施例中，从时钟使用链路速率信息来估计传输延迟不对称，从而估计从时钟的偏移和偏移。实施例提供了简单的线性近似技术和用于估计从时钟的偏移和偏移的基于卡尔曼滤波器的技术。

8. 发明申请

WO2015049478A1 METHOD AND DEVICES FOR SYNCHRONIZATION 审中-公开
标题翻译：用于同步的方法和设备
公开(公告)号：WO2015049478A1
公开(公告)日：2015-04-09
申请号：PCT/GB2013/052552
申请日：2013-10-01
申请人： KHALIFA UNIVERSITY OF SCIENCE, TECHNOLOGY, AND RESEARCH , BRITISH TELECOMMUNICATIONS PLC , EMIRATES TELECOMMUNICATIONS CORPORATION
发明人： AWEYA, James
IPC分类号： H04J3/06
CPC分类号： H04J3/0667
摘要： This invention relates to methods and devices for time and frequency synchronization. The invention has particular application where time and frequency synchronization over packet networks using, for example, the IEEE 1588 Precision Time Protocol (PTP) is being carried out. The primary challenge in clock distribution over packet networks is the variable transit delays experienced by timing packets, packet delay variations (PDVs). Embodiments of the invention provide a method for time offset alignment with PDV compensation where a synchronized frequency signal is available at a slave device via Synchronous Ethernet and is used to determine the compensation parameters for the PDV.
摘要翻译：本发明涉及时间和频率同步的方法和装置。本发明具有特定的应用，其中使用例如IEEE 1588精确时间协议（PTP）的分组网络进行时间和频率同步。分组网络中时钟分配的主要挑战是定时分组，分组延迟变化（PDV）所经历的可变传输延迟。本发明的实施例提供了一种用于与PDV补偿的时间偏移对准的方法，其中同步的频率信号在从属设备经由同步以太网可用，并且用于确定PDV的补偿参数。

9. 发明申请

WO2015044630A1 EFFICIENT EVENT FILTER 审中-公开
标题翻译：高效过滤器
公开(公告)号：WO2015044630A1
公开(公告)日：2015-04-02
申请号：PCT/GB2014/000379
申请日：2014-09-24
申请人： BRITISH TELECOMMUNICATIONS PLC
发明人： AZVINE, Behnam , MARTIN, Trevor Philip
IPC分类号： G06F9/54 , G06F11/30 , G06F21/55 , G06F9/44
CPC分类号： G06F9/4881 , G06F8/30 , G06F9/542 , G06F11/3072 , G06F21/552 , G06F2201/86
摘要： A sequence identification apparatus comprising a processor, wherein the apparatus is adapted to access a directed acyclic graph data structure of equivalence classes of events in event sequences identified in a plurality of time-ordered events, and wherein the graph is optimised such that initial and final sub-sequences of event sequences having common equivalence classes are combined in the graph, the apparatus comprising: a code generator adapted to generate executable code corresponding to the graph such that the code includes an instruction sequence for each event classification of the graph, the code sequence for an event classification being adapted to evaluate criteria to determine if an event corresponds to the event classification; a virtual machine adapted to execute the generated executable code such that, in use, the executable code filters incoming time-ordered events based on the graph.
摘要翻译：一种包括处理器的序列识别装置，其中所述装置适于在多个时间有序事件中识别的事件序列中访问事件等价类别的有向非循环图数据结构，并且其中所述图被优化为使得初始和最终在图中组合具有公共等价类的事件序列的子序列，该装置包括：代码生成器，适于生成与图形相对应的可执行代码，使得代码包括用于图的每个事件分类的指令序列，代码事件分类的顺序适于评估标准以确定事件是否对应于事件分类; 适于执行生成的可执行代码的虚拟机，使得在使用中，可执行代码基于该图来过滤输入的时间有序的事件。

10. 发明申请

WO2015036721A1 METHOD AND DEVICES FOR FREQUENCY DISTRIBUTION 审中-公开
标题翻译：用于频率分配的方法和设备
公开(公告)号：WO2015036721A1
公开(公告)日：2015-03-19
申请号：PCT/GB2013/052374
申请日：2013-09-11
申请人： KHALIFA UNIVERSITY OF SCIENCE, TECHNOLOGY, AND RESEARCH , BRITISH TELECOMMUNICATIONS PLC , EMIRATES TELECOMMUNICATIONS CORPORATION
发明人： AWEYA, James , AL SINDI, Nayef , AL-ZUBAIDI, Saeed
IPC分类号： H04J3/06
CPC分类号： H04J3/0664 , H04J3/0667
摘要： This invention relates to methods and devices for frequency distribution based on, for example, the IEEE 1588 Precision Time Protocol (PTP). Packet delay variation (PDV) is a direct contributor to the noise in the recovered clock and various techniques have been proposed to mitigate its effects. Embodiments of the invention provide a mechanism to directly measure and remove PDV effects in the clock recovery mechanism at a slave clock. One particular embodiment provides a clock recovery mechanism including a phase-locked loop (PLL) with a PDV compensation feature built-in. An aim of the invention is to enable a slave clock to recover the master clock to a higher quality as if the communication path between master and slave is free of PDV. This technique may allow a packet network to provide clock synchronization services to the same level as time division multiplexing (TDM) networks and Global Positioning System (GPS).
摘要翻译：本发明涉及基于例如IEEE 1588精确时间协议（PTP）的用于频率分布的方法和装置。分组延迟变化（PDV）是恢复时钟中的噪声的直接贡献者，并且已经提出了各种技术来减轻其影响。本发明的实施例提供了一种在从时钟处直接测量和去除时钟恢复机制中的PDV效应的机制。一个具体实施例提供了一种时钟恢复机制，其包括具有内置PDV补偿特征的锁相环（PLL）。本发明的目的是使从时钟将主时钟恢复到更高的质量，就好像主机和从机之间的通信路径没有PDV一样。该技术可以允许分组网络提供与时分复用（TDM）网络和全球定位系统（GPS）相同级别的时钟同步服务。

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