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41. 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。

42. 发明授权

US07231445B1 Technique for adaptively distributing web server requests 失效
标题翻译：自动分发Web服务器请求的技术
公开(公告)号：US07231445B1
公开(公告)日：2007-06-12
申请号：US09713319
申请日：2000-11-16
申请人： James Aweya , Michel Ouellette , Delfin Y. Montuno , Bernard J. Doray , Kent E. Felske
发明人： James Aweya , Michel Ouellette , Delfin Y. Montuno , Bernard J. Doray , Kent E. Felske
IPC分类号： G06F15/173
CPC分类号： G06Q10/00 , G06Q50/18 , H04L67/1002 , H04L67/1008 , H04L67/1019
摘要： A technique for adaptively distributing a web server request in a system having a plurality of web servers is disclosed. In one embodiment, the technique is realized by first generating a web server request distribution function for each of the plurality of web servers based upon performance measures of each of the plurality of web servers, wherein each of the plurality of web servers is assigned a respective probability range based upon each respective web server request distribution function. A random probability number is then generated for a web server request. The particular probability range encompassing the random probability number is then determined so as to identify the corresponding web server to which the web server request is to be distributed.
摘要翻译：公开了一种用于在具有多个web服务器的系统中自适应地分发web服务器请求的技术。在一个实施例中，该技术通过基于多个web服务器中的每一个的性能测量来首先为多个web服务器中的每一个生成web服务器请求分发功能来实现，其中多个web服务器中的每一个被分配相应的基于每个相应的web服务器请求分发功能的概率范围。然后为Web服务器请求生成随机概率数。然后确定包含随机概率数的特定概率范围，以便识别要分发web服务器请求的相应web服务器。

43. 发明授权

US07054557B1 Technique for routing data within an optical network 失效
标题翻译：在光网络内路由数据的技术
公开(公告)号：US07054557B1
公开(公告)日：2006-05-30
申请号：US09685090
申请日：2000-10-11
申请人： Abel C. Dasylva , Delfin Y. Montuno , Yanhe Fan
发明人： Abel C. Dasylva , Delfin Y. Montuno , Yanhe Fan
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J14/0241 , H04J14/0284 , H04L45/00 , H04L45/50 , H04L45/62 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0077
摘要： A technique for routing data within an optical network having a plurality of network nodes is disclosed. In one embodiment, the technique is realized by receiving data at a first network node via a first optical signal having a first wavelength. The first wavelength corresponds to a first optical frequency, and the first optical frequency is mapped to a first binary representation. The first binary representation is divided into a first plurality of fields, wherein at least one of the first plurality of fields corresponds to a routing label in a first label stack. A top routing label in the first label stack indicates a second network node. Based at least partially upon the top routing label, the data is transmitted from the first network node to the second network node via a second optical signal having a second wavelength. The first wavelength may be either the same as or different from the second wavelength.
摘要翻译：公开了一种在具有多个网络节点的光网络内路由数据的技术。在一个实施例中，该技术通过经由具有第一波长的第一光信号在第一网络节点处接收数据来实现。第一波长对应于第一光频率，第一光频率被映射到第一二进制表示。第一二进制表示被分成第一多个字段，其中第一多个字段中的至少一个字段对应于第一标签栈中的路由标签。第一个标签堆栈中的顶部路由标签指示第二个网络节点。至少部分地基于顶部路由标签，数据经由具有第二波长的第二光信号从第一网络节点传送到第二网络节点。第一波长可以与第二波长相同或不同。

44. 发明授权

US07020791B1 Clock recovery using a double-exponential smoothing process 有权
标题翻译：使用双指数平滑处理的时钟恢复
公开(公告)号：US07020791B1
公开(公告)日：2006-03-28
申请号：US10246408
申请日：2002-09-19
申请人： James Aweya , Michel Ouellette , Delfin Y. Montuno , Kent E. Felske
发明人： James Aweya , Michel Ouellette , Delfin Y. Montuno , Kent E. Felske
IPC分类号： G06F1/12 , H04L7/00 , H03L7/00
CPC分类号： H04J3/0632 , G06F1/12 , H03L7/085 , H03L7/093 , H03L7/0992 , H04N21/242 , H04N21/4305 , H04N21/64322
摘要： A system and method for synchronizing a local clock to a reference clock using a linear model of the clock error between the local clock and the reference clock is disclosed. In one embodiment, a double-exponential smoothing process is used in conjunction with the linear model to estimate a frequency offset by which the frequency of an oscillator of the local clock is adjusted. Also disclosed herein is a phased-lock loop (PLL) adapted to synchronize a local clock with a reference clock using the double-exponential smoothing process, as well as a system implementing the PLL for timing the playout of data received from a transmitter.
摘要翻译：公开了一种使用本地时钟和参考时钟之间的时钟误差的线性模型将本地时钟同步到参考时钟的系统和方法。在一个实施例中，双指数平滑处理与线性模型一起使用以估计调整本地时钟的振荡器的频率的频率偏移。本文还公开了一种适用于使用双指数平滑过程将本地时钟与参考时钟同步的相控锁环（PLL），以及实现用于定时从发射机接收的数据的播出的PLL的系统。

45. 发明授权

US06990070B1 Method and apparatus for adjusting packet transmission volume from a source 失效
标题翻译：用于从源调节分组传输量的方法和装置
公开(公告)号：US06990070B1
公开(公告)日：2006-01-24
申请号：US09465705
申请日：1999-12-17
申请人： James Aweya , Delfin Y. Montuno , Michel Quellette
发明人： James Aweya , Delfin Y. Montuno , Michel Quellette
IPC分类号： H04J1/16
CPC分类号： H04L47/193 , H04L47/10 , H04L47/12 , H04L47/27 , H04L47/29 , H04L47/30
摘要： A method and apparatus are provided for adjusting the volume of data communicated between a transmitter and a receiver on a network, in a time interval. The method involves producing a desired volume value in response to a volume value specified by the receiver and a difference between a target departure volume and an estimate of arrival volume of data at a queue through which data passes from the transmitter to the receiver, and communicating the desired volume value to the transmitter in response to an acknowledgement signal produced by the receiver.
摘要翻译：提供了一种用于在时间间隔内调整在网络上的发射机和接收机之间传送的数据量的方法和装置。该方法涉及响应于由接收机指定的音量值产生期望的音量值，以及目标出发音量与数据从发射机到接收机的队列间到达音量的估计之间的差异，以及通信响应于由接收机产生的确认信号而向发射机发送期望的音量值。

46. 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。

47. 发明授权

US06825971B1 Technique and apparatus for frequency conversion in an optical network 失效
标题翻译：光网络中的频率转换技术和装置
公开(公告)号：US06825971B1
公开(公告)日：2004-11-30
申请号：US10325978
申请日：2002-12-23
申请人： Abel C. Dasylva , Delfin Y. Montuno , Prasad Kodaypak , Pia Sindile , Zhonghui Yao
发明人： Abel C. Dasylva , Delfin Y. Montuno , Prasad Kodaypak , Pia Sindile , Zhonghui Yao
IPC分类号： G02F202
CPC分类号： G02F1/3534 , G02F2/002
摘要： A technique for wave-mixing bulk frequency conversion in a network comprising one or more channels is disclosed that enables cost-effective wavelength-conversion. In one particular exemplary embodiment, the technique may be realized by a new class of multi-log wave-mixing-cross-connects that are based on arbitrary b×b space-switching elements, where b>2. In such cross-connects, for any light-path, the worst case number of cascaded frequency-conversions is O(logb(FW)), F being the number of fibers. One benefit of the new design may be maximized when W=O(F), b=O(F), and the worst-case number of cascaded conversions is O(1).
摘要翻译：公开了一种用于在包括一个或多个信道的网络中进行波混频体频率转换的技术，其实现成本有效的波长转换。在一个特定的示例性实施例中，该技术可以通过基于任意bxb空间切换元件的新类别的多对数波混合交叉连接来实现，其中b> 2。在这种交叉连接中，对于任何光路，级联频率转换的最坏情况数量为O（logb（FW）），F为光纤数。当W = O（F），b = O（F）时，新设计的一个好处可能会最大化，最坏情况下级联转换次数为O（1）。

48. 发明授权

US06690645B1 Method and apparatus for active queue management based on desired queue occupancy 失效
标题翻译：基于所需队列占用的主动队列管理方法和装置
公开(公告)号：US06690645B1
公开(公告)日：2004-02-10
申请号：US09455445
申请日：1999-12-06
申请人： James Aweya , Delfin Y. Montuno , Michel Ouellette
发明人： James Aweya , Delfin Y. Montuno , Michel Ouellette
IPC分类号： H04L1226
CPC分类号： H04L47/30 , H04L47/10 , H04L47/263 , H04L47/32
摘要： A method and apparatus for controlling a rate at which packets are transmitted to a network node having a queue and a network element employing same is described. The method and apparatus cooperate to generate a probability value in response to queue occupancy and desired queue occupancy and to control the packet in response to the probability value and a reference value to cause a source of the packet to change its transmission rate. Control of the packet is achieved by dropping the packet or by modifying the packet to include a message informing the source that it should adjust its transmission rate. In one embodiment, the probability value is converted into an inter-drop/mark value representing the number of packets to be admitted into the queue between dropped or marked packets.
摘要翻译：描述用于控制分组被发送到具有队列的网络节点和使用其的网络元件的速率的方法和装置。所述方法和装置协调以响应于队列占用和期望的队列占用而产生概率值，并且响应于概率值和参考值来控制分组，以使分组的源改变其传输速率。通过丢弃分组或通过修改分组以包括通知源应该调整其传输速率的消息来实现分组的控制。在一个实施例中，将概率值转换为表示在丢弃或标记的分组之间被允许进入队列的分组数量的中间插入/标记值。

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