公开(公告)号：US07277391B1

公开(公告)日：2007-10-02

申请号：US10426763

申请日：2003-04-30

Applicant: James Aweya ,  Michel Ouellette ,  Delfin Montuno ,  Kent Felske

Inventor： James Aweya ,  Michel Ouellette ,  Delfin Montuno ,  Kent Felske

IPC: G01R31/08

CPC classification number: H04L47/10 ,  H04L47/12 ,  H04L47/32

Abstract: 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 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.

Abstract translation: 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，闭环配置中的比例控制器具有用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。 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。

公开(公告)号：US07231445B1

公开(公告)日：2007-06-12

申请号：US09713319

申请日：2000-11-16

Applicant: James Aweya ,  Michel Ouellette ,  Delfin Y. Montuno ,  Bernard J. Doray ,  Kent E. Felske

Inventor： James Aweya ,  Michel Ouellette ,  Delfin Y. Montuno ,  Bernard J. Doray ,  Kent E. Felske

IPC: G06F15/173

CPC classification number: G06Q10/00 ,  G06Q50/18 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1019

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07020791B1

公开(公告)日：2006-03-28

申请号：US10246408

申请日：2002-09-19

Applicant: James Aweya ,  Michel Ouellette ,  Delfin Y. Montuno ,  Kent E. Felske

Inventor： James Aweya ,  Michel Ouellette ,  Delfin Y. Montuno ,  Kent E. Felske

IPC: G06F1/12 ,  H04L7/00 ,  H03L7/00

CPC classification number: H04J3/0632 ,  G06F1/12 ,  H03L7/085 ,  H03L7/093 ,  H03L7/0992 ,  H04N21/242 ,  H04N21/4305 ,  H04N21/64322

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06990070B1

公开(公告)日：2006-01-24

申请号：US09465705

申请日：1999-12-17

Applicant: James Aweya ,  Delfin Y. Montuno ,  Michel Quellette

Inventor： James Aweya ,  Delfin Y. Montuno ,  Michel Quellette

IPC: H04J1/16

CPC classification number: H04L47/193 ,  H04L47/10 ,  H04L47/12 ,  H04L47/27 ,  H04L47/29 ,  H04L47/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06894832B1

公开(公告)日：2005-05-17

申请号：US10231090

申请日：2002-08-30

Applicant: James Aweya ,  Delfin Y. Montuno ,  Michel Ouellette ,  Kent Felske

Inventor： James Aweya ,  Delfin Y. Montuno ,  Michel Ouellette ,  Kent Felske

IPC: H01S3/00 ,  H01S3/067 ,  H01S3/13 ,  H01S3/131 ,  H01S3/16

CPC classification number: H01S3/06754 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1608

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06690645B1

公开(公告)日：2004-02-10

申请号：US09455445

申请日：1999-12-06

Applicant: James Aweya ,  Delfin Y. Montuno ,  Michel Ouellette

Inventor： James Aweya ,  Delfin Y. Montuno ,  Michel Ouellette

IPC: H04L1226

CPC classification number: H04L47/30 ,  H04L47/10 ,  H04L47/263 ,  H04L47/32

Abstract: 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.

Abstract translation: 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。