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11. 发明申请

US20080231511A1 Beacon-Assisted Precision Location of Untethered Client in Packet Networks 失效
标题翻译：分组网络中无连接客户端的信标辅助精确定位
公开(公告)号：US20080231511A1
公开(公告)日：2008-09-25
申请号：US11689660
申请日：2007-03-22
申请人： Delfin Y. Montuno , James Aweya , Michel Ouellette , Kent Felske
发明人： Delfin Y. Montuno , James Aweya , Michel Ouellette , Kent Felske
IPC分类号： G01S1/24 , G01S3/02
CPC分类号： G01S5/06
摘要： A novel beacon-based position location technique for efficient location discovery of untethered clients in packet networks is disclosed. The position location technique utilizes the time-difference-of-arrival (“TDOA”) of a first signal transmitted by a beacon of known location and a second signal transmitted by an untethered client. The TDOA of these two signals is measured locally by at least three non-collinear signal receivers. For each of the receivers, the TDOA is used to calculate a perceived distance to the client. A circle is then calculated for each receiver, centered on the receiver and having a radius equal to the perceived distance. At least two lines defined by points of intersection of the calculated circles are then calculated. The point of intersection of the lines represents the location of the client. To facilitate operation, the signal receivers may be arranged on vertices which define a convex polygon as viewed from above. The location system requires no time (time-of-day) synchronization of the signal receivers, and only the coarse frequency synchronization, on the order of, tens of parts-per-million (ppm). The technique even works for the case where the signal receivers are run asynchronously, provided the frequency accuracies of the signal receivers are on the order of about 50ppm or better. The technique introduces no communication overhead for the beacon, client and signal receivers. Further, the computation overhead at the signal receivers is relatively low because the location detection algorithm involves only simple algebraic operations over scalar values.
摘要翻译：公开了一种新颖的基于信标的位置定位技术，用于在分组网络中无阻塞客户端的有效位置发现。位置定位技术利用由已知位置的信标发送的第一信号的到达时间差（“TDOA”）和由无阻塞客户端发送的第二信号。这两个信号的TDOA由至少三个非共线信号接收器本地测量。对于每个接收机，TDOA用于计算到客户端的感知距离。然后，以接收机为中心并且具有等于感知距离的半径的每个接收机计算一个圆。然后计算由计算圆的交点定义的至少两条线。线的交点表示客户端的位置。为了便于操作，信号接收器可以被布置在从上方观察的限定凸多边形的顶点上。定位系统不需要信号接收机的时间（时间）同步，只需要几十分之一百万分之几的粗略频率同步（ppm）。该技术甚至适用于信号接收机异步运行的情况，只要信号接收机的频率精度约为50ppm或更高。该技术不引入信标，客户端和信号接收机的通信开销。此外，信号接收机的计算开销相对较低，因为位置检测算法仅涉及标量值的简单代数运算。

12. 发明申请

US20080144515A1 Protocol for Clock Distribution and Loop Resolution 失效
标题翻译：时钟分配和环路分辨率协议
公开(公告)号：US20080144515A1
公开(公告)日：2008-06-19
申请号：US11609966
申请日：2006-12-13
申请人： Michel Ouellette , James Aweya , Delfin Y. Montuno , Kent Felske
发明人： Michel Ouellette , James Aweya , Delfin Y. Montuno , Kent Felske
IPC分类号： H04J3/14
CPC分类号： H04L41/12 , H04J3/0679
摘要： Algorithms and data structure are described for constructing and maintaining a clock distribution tree (“CDT”) for timing loop avoidance. The CDT algorithms and data structure allows a node to make an automated and unattended path switch to the most desirable clock source in the network. In response to a network topology change, a clock root node distributes new clock paths to all nodes in the network. In particular, the root node calculates a new clock path for each affected node by building a clock source topology tree, and identifying from that tree a path to the network node from a clock source of higher or equal stratum relative to that network node. The root node then sends a network message to each node indicating the new path that the node should use. Each node receives the message and compares the new path with the existing path. If the paths are different then the node acquires the new path just received in the message. If the paths are the same then the node does nothing and discards the message.
摘要翻译：描述了用于构建和维护用于定时回路的时钟分布树（“CDT”）的算法和数据结构。 CDT算法和数据结构允许节点将自动和无人值守的路径切换到网络中最理想的时钟源。响应于网络拓扑变化，时钟根节点将新的时钟路径分配给网络中的所有节点。特别地，根节点通过构建时钟源拓扑树来计算每个受影响节点的新时钟路径，并且从该树中识别来自相对于该网络节点的较高或相等层的时钟源到网络节点的路径。根节点然后向每个节点发送一个网络消息，指示节点应该使用的新路径。每个节点接收消息，并将新路径与现有路径进行比较。如果路径不同，则节点获取刚刚在消息中接收到的新路径。如果路径相同，则节点不执行任何操作并丢弃该消息。

13. 发明授权

US06894832B1 Technique for adaptively controlling gain in an optical amplifier 有权
标题翻译：用于自适应控制光放大器增益的技术
公开(公告)号：US06894832B1
公开(公告)日：2005-05-17
申请号：US10231090
申请日：2002-08-30
申请人： James Aweya , Delfin Y. Montuno , Michel Ouellette , Kent Felske
发明人： James Aweya , Delfin Y. Montuno , Michel Ouellette , Kent Felske
IPC分类号： H01S3/00 , H01S3/067 , H01S3/13 , H01S3/131 , H01S3/16
CPC分类号： H01S3/06754 , H01S3/10015 , H01S3/1301 , H01S3/1608
摘要： A technique for adaptively controlling a gain of an optical amplifier is disclosed. In one particular exemplary embodiment, the technique may be realized by a method comprising the steps of measuring an output power signal of the optical amplifier; computing a command signal from an input power signal; computing a model state signal of a reference model; computing a model output signal of the reference model based at least in part on the model state signal; computing an error signal between the model output signal and the output power signal of the optical amplifier; adjusting at least one adaptive control gain value to minimize the error signal; and computing a control input signal for driving the optical amplifier based at least in part on the at least one adaptive control gain value, the error signal, the model state signal and the command signal.
摘要翻译：公开了一种用于自适应地控制光放大器的增益的技术。在一个特定示例性实施例中，该技术可以通过以下方法实现：包括以下步骤：测量光放大器的输出功率信号; 从输入功率信号计算命令信号; 计算参考模型的模型状态信号; 至少部分地基于模型状态信号来计算参考模型的模型输出信号; 计算模型输出信号和光放大器的输出功率信号之间的误差信号; 调整至少一个自适应控制增益值以最小化误差信号; 以及至少部分地基于所述至少一个自适应控制增益值，所述误差信号，所述模型状态信号和所述命令信号来计算用于驱动所述光放大器的控制输入信号。

14. 发明授权

US07492732B2 Differential clock recovery in packet networks 有权
标题翻译：分组网络中的差分时钟恢复
公开(公告)号：US07492732B2
公开(公告)日：2009-02-17
申请号：US11294146
申请日：2005-12-05
申请人： James Aweya , Michel Ouellette , Delfin Montuno , Kent Felske
发明人： James Aweya , Michel Ouellette , Delfin Montuno , Kent Felske
IPC分类号： H04B7/212
CPC分类号： H04J3/0658
摘要： Where a common network clock is available at both a TDM receiver and a TDM transmitter which communicate via a packet network, differential clock recovery can be accomplished by matching the number of service clock pulses in a network reference clock period at the transmitter and receiver. In one embodiment the transmitter need only send a counter value from a counter that is clocked and reset, respectively, by the service clock and network reference clock, thereby allowing use of different types of oscillators, both analog and digital, to be implemented at the transmitter and receiver. The technique is also general enough to be applied in a wide variety of packet networks including but not limited to IP, MPLS and Ethernet. In an alternative embodiment, a faster derived network clock fdnc drives both the transmitter and receiver counters, which in turn are reset, respectively by the slower transmitter service clock fsc and slower receiver service clock frc.
摘要翻译：在通过分组网络进行通信的TDM接收机和TDM发射机都可以使用公共网络时钟的情况下，差分时钟恢复可以通过在发射机和接收机的网络参考时钟周期内匹配服务时钟脉冲的数量来实现。在一个实施例中，发射机仅需要通过服务时钟和网络参考时钟分别从计时器发送计数器值并将其复位，从而允许使用不同类型的模拟和数字振荡器来实现发射机和接收机。该技术也足以应用于各种分组网络，包括但不限于IP，MPLS和以太网。在替代实施例中，更快的导出网络时钟fdnc驱动发射机和接收机计数器，发射机和接收机计数器又分别被较慢的发射机业务时钟fsc和较慢的接收机业务时钟frc复位。

15. 发明申请

US20070097947A1 Three-way message exchange clock synchronization 有权
标题翻译：三路信息交换时钟同步
公开(公告)号：US20070097947A1
公开(公告)日：2007-05-03
申请号：US11362697
申请日：2006-02-27
申请人： James Aweya , Michel Ouellette , Delfin Montuno , Kent Felske
发明人： James Aweya , Michel Ouellette , Delfin Montuno , Kent Felske
IPC分类号： H04J3/06
CPC分类号： H04J3/065 , H04J3/0667
摘要： The invention includes a technique for clock recovery in a network having master and slave clocks in respective Time Division Multiplexing (“TDM”) network segments which are interconnected by a non-TDM segment. Master clock timestamps are sent to the slave. The slave measures a master clock timestamp inter-arrival interval, and sends slave clock timestamps to the master. The master measures a slave clock timestamp inter-arrival interval, and sends that slave clock timestamp inter-arrival interval to the slave. The slave then calculates an error signal based at least in-part on the difference between the master clock timestamp inter-arrival interval and the slave clock timestamp inter-arrival interval, and employs the difference to recover the first service clock in the second TDM segment.
摘要翻译：本发明包括一种用于在通过非TDM分段互连的相应时分复用（“TDM”）网段中的主时钟和从时钟的网络中的时钟恢复技术。主时钟时间戳被发送到从站。从站测量主时钟时间戳到达间隔时间，并向主机发送从时钟时间戳。主机测量从时钟时间戳到达间隔时间，并将从属时钟时间戳到到达间隔发送到从机。然后，从设备至少部分地基于主时钟间隔到达间隔和从时钟时间戳到达间隔之间的差异来计算误差信号，并且采用差异来恢复第二TDM段中的第一服务时钟。

16. 发明授权

US07684333B1 Reliable quality of service (QoS) provisioning using adaptive class-based contention periods 有权
标题翻译：使用自适应基于类的争用期可靠的服务质量（QoS）配置
公开(公告)号：US07684333B1
公开(公告)日：2010-03-23
申请号：US11191485
申请日：2005-07-28
申请人： Abel Clement Dasylva , Zhonghui Yao , Delfin Montuno , Michel Ouellette , James Aweya , Wenfeng Chen , Kent Felske
发明人： Abel Clement Dasylva , Zhonghui Yao , Delfin Montuno , Michel Ouellette , James Aweya , Wenfeng Chen , Kent Felske
IPC分类号： H04L5/12 , G01R3/08 , G06F11/00 , G08C15/00
CPC分类号： H04L5/0037 , H04L5/0064
摘要： A method and system for allocating bandwidth of a wireless channel to different types of traffic includes partitioning the bandwidth of the wireless channel into a plurality of contention periods. Traffic flows are associated with access categories, and one or more of the access categories are assigned to each contention period. During at least one of the contention periods, traffic flows associated with a proper subset of the access categories contend for access to the wireless channel.
摘要翻译：将无线信道的带宽分配给不同类型的业务的方法和系统包括将无线信道的带宽划分成多个争用周期。业务流与访问类别相关联，并且一个或多个访问类别被分配给每个争用期。在至少一个竞争时段期间，与访问类别的适当子集相关联的业务流竞争访问无线信道。

17. 发明授权

US07298699B1 Rate-based integral control scheme for active queue management 失效
标题翻译：主动队列管理的基于速率的积分控制方案
公开(公告)号：US07298699B1
公开(公告)日：2007-11-20
申请号：US10426289
申请日：2003-04-30
申请人： Delfin Montuno , James Aweya , Michel Ouellette , Kent Felske
发明人： Delfin Montuno , James Aweya , Michel Ouellette , Kent Felske
IPC分类号： H04L12/26
CPC分类号： H04L47/31 , H04L41/142 , H04L43/00 , H04L43/022 , H04L43/0894 , H04L43/16 , H04L47/10 , H04L47/18
摘要： Disclosed is an Active Queue Management method and apparatus which uses traffic rate information for congestion control. Using a nonlinear fluid-flow model of Traffic Control Protocol, an integral controller in a closed loop configuration with gain settings characterized for stable operation allows a matching of the aggregate rate of the active TCP connections to the available capacity. Further disclosed is a method for calculation of the regime of gains for which stable operation of a given network obtains. This approach allows for capacity matching while maintaining minimal queue size and high link utilization.
摘要翻译：公开了一种使用业务速率信息进行拥塞控制的活动队列管理方法和装置。使用流量控制协议的非线性流体流模型，具有以稳定操作为特征的增益设置的闭环配置中的集成控制器允许活动TCP连接的总速率与可用容量的匹配。进一步公开了一种用于计算给定网络的稳定运行获得的增益方案的方法。这种方法允许容量匹配，同时保持最小的队列大小和高的链路利用率。

18. 发明申请

US20060056563A1 Method and apparatus for synchronizing clock timing between network elements 有权
标题翻译：用于在网络元件之间同步时钟定时的方法和装置
公开(公告)号：US20060056563A1
公开(公告)日：2006-03-16
申请号：US11172335
申请日：2005-06-30
申请人： James Aweya , Delfin Montuno , Michel Ouellette , Kent Felske
发明人： James Aweya , Delfin Montuno , Michel Ouellette , Kent Felske
IPC分类号： H03D3/24 , H04L7/00
CPC分类号： H03L7/0805 , H03D13/002 , H03L7/085 , H03L7/093 , H03L7/0992 , H03L7/10 , H03L2207/50 , H04J3/0658 , H04J3/0664
摘要： Network elements may be synchronized over an asynchronous network by implementing a master clock as an all digital PLL that includes a Digitally Controlled Frequency Selector (DCFS), the output frequency of which may be directly controlled through the input of a control word. The PLL causes the control word input to the master DCFS to be adjusted to cause the output of the master DCFS to lock onto a reference frequency. Information associated with the control word is transmitted from the master clock to the slave clocks which are also implemented as DCFSs. By using the transmitted information to recreate the master control word, the slaves may be made to assume the same state as the master DCFS without requiring the slaves to be implemented as PLLs. The DCFS may be formed as a digitally controlled oscillator (DCO) or as a Direct Digital Synthesizer (DDS).
摘要翻译：网络元件可以通过将主时钟实现为包括数字控制频率选择器（DCFS）的全数字PLL的主时钟同步，其输出频率可以通过控制字的输入直接控制。 PLL会导致对主DCFS的输入控制字进行调整，使主DCFS的输出锁定在参考频率上。与控制字相关的信息从主时钟发送到也被实现为DCFS的从时钟。通过使用所发送的信息来重建主控制字，可以使从属设备呈现与主DCFS相同的状态，而不需要将从机实现为PLL。 DCFS可以形成为数字控制振荡器（DCO）或直接数字合成器（DDS）。

19. 发明授权

US09064093B1 Method and system for content detection and interception in communication networks 有权
标题翻译：通信网络中内容检测和拦截的方法和系统
公开(公告)号：US09064093B1
公开(公告)日：2015-06-23
申请号：US10745065
申请日：2003-12-22
申请人： Kent Felske , James Aweya , Delfin Montuno , Michel Ouellette
发明人： Kent Felske , James Aweya , Delfin Montuno , Michel Ouellette
IPC分类号： G06F21/00
CPC分类号： G06F21/00 , G06F21/16 , G06F2221/0788
摘要： A system in which data signatures are used to identify copyrighted content passing through a network. The data signatures are derived from files containing copyrighted content to be identified. The signatures are used to search within peer-to-peer data streams flowing through one or more network nodes in a communications network. Any specific technique may be used for pattern recognition between the signatures and the monitored traffic. When a particular file of interest is identified, the system may operate to perform one or more of several possible actions, including stopping the transmission, allowing the transmission but recording the event, making an offer to the recipient allowing them to legally purchase the file, or sending alternative information or intentionally corrupting the information to render it useless to the recipient.
摘要翻译：使用数据签名来识别经过网络的受版权保护的内容的系统。数据签名是从包含要识别的受版权保护的内容的文件导出的。这些签名用于在流经通信网络中的一个或多个网络节点的对等数据流中搜索。任何具体技术可用于签名和被监视业务之间的模式识别。当识别出感兴趣的特定文件时，系统可以操作以执行几种可能的动作中的一种或多种，包括停止传输，允许传输但记录事件，向接收者提供允许他们合法购买文件的提议，或发送替代信息或故意破坏信息，使其对接收者无效。

20. 发明授权

US07424546B1 Rate-based proportional-integral control scheme for active queue management 有权
标题翻译：基于速率的比例积分控制方案主动队列管理
公开(公告)号：US07424546B1
公开(公告)日：2008-09-09
申请号：US10426286
申请日：2003-04-30
申请人： James Aweya , Michel Ouellette , Delfin Montuno , Kent Felske
发明人： James Aweya , Michel Ouellette , Delfin Montuno , Kent Felske
IPC分类号： G06F15/16 , G06F15/173 , G06F11/00
CPC分类号： H04L47/10 , H04L43/0894 , H04L43/16 , H04L47/12 , H04L47/193 , H04L47/31 , H04L47/32 , H04L69/02 , H04L69/28
摘要： Disclosed is an Active Queue Management method and apparatus which uses traffic rate information for congestion control. Using a nonlinear fluid-flow model of Traffic Control Protocol, a proportional-integral controller in a closed loop configuration with gain settings characterized for stable operation allows a matching of the aggregate rate of the active TCP connections to the available capacity. Further disclosed is a method for calculation of the regime of gain settings for which stable operation of a given network obtains. This approach allows for capacity matching while maintaining minimal queue size and high link utilization.
摘要翻译：公开了一种使用业务速率信息进行拥塞控制的活动队列管理方法和装置。使用流量控制协议的非线性流体流模型，闭环配置中的比例积分控制器，其特征在于稳定操作的增益设置允许活动TCP连接的总速率与可用容量的匹配。还公开了一种用于计算给定网络的稳定操作获得的增益设置的方案的方法。这种方法允许容量匹配，同时保持最小的队列大小和高的链路利用率。

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