公开(公告)号：US07930435B2

公开(公告)日：2011-04-19

申请号：US12114059

申请日：2008-05-02

申请人： Kim B. Roberts

发明人： Kim B. Roberts

IPC分类号： G06F15/16

CPC分类号： H03M7/30 ,  H03M7/3084 ,  H03M7/40 ,  H03M7/4006 ,  H04L69/04

摘要： A method of compressing data traffic for transmission through a network, the method comprises computing, for each one of a plurality of contexts of data traffic within the network, a respective optimal dictionary for encoding data traffic; For each block of data to be transmitted through the network: identifying a block context of the block of data; and encoding the block of data using the respective dictionary computed for the context corresponding to the identified block context.

摘要翻译： 一种压缩数据流量以便通过网络进行传输的方法，所述方法包括针对网络内的数据业务的多个上下文中的每一个计算用于对数据业务进行编码的相应最佳字典; 对于要通过网络传输的每个数据块：识别数据块的块上下文; 以及使用针对与所识别的块上下文相对应的上下文计算的相应字典对数据块进行编码。

公开(公告)号：US07599400B2

公开(公告)日：2009-10-06

申请号：US11218430

申请日：2005-09-06

申请人： Kim B. Roberts ,  Chandra Bontu ,  James Harley

发明人： Kim B. Roberts ,  Chandra Bontu ,  James Harley

IPC分类号： H04J3/06

CPC分类号： H04J3/076 ,  H04L1/205

摘要： A method of minimizing jitter in a system for rate adapting a data signal for transport through a synchronous network. A phase difference is measured between a data clock synchronous with the data signal and a local clock of the synchronous network. A timing reference (F) indicative of a frequency difference between the asynchronous data signal and the local clock is measured using the measured phase difference. Calculation of the timing reference includes compensating ambiguity in the measured phase difference.

摘要翻译： 一种使系统中的抖动最小化的方法，用于速率调整用于通过同步网络传输的数据信号。 在与数据信号同步的数据时钟与同步网络的本地时钟之间测量相位差。 使用测量的相位差来测量指示异步数据信号和本地时钟之间的频率差的定时参考（F）。 定时参考的计算包括补偿测量相位差的模糊度。

公开(公告)号：US07305183B2

公开(公告)日：2007-12-04

申请号：US09975985

申请日：2001-10-15

申请人： Kim B. Roberts ,  Giuseppe G. Bordogna ,  Riyaz R. Jamal ,  Douglas D. McGhan ,  Maurice S. O'Sullivan

发明人： Kim B. Roberts ,  Giuseppe G. Bordogna ,  Riyaz R. Jamal ,  Douglas D. McGhan ,  Maurice S. O'Sullivan

IPC分类号： H04B10/08 ,  H04B17/00 ,  H04B10/00 ,  H04J14/06

CPC分类号： H04B10/2572

摘要： A method and system enables measurement of polarization dependent loss (PDL) in an optical communications system including a plurality of cascaded optical components. An optical signal having a predetermined initial polarization state is launched into the optical communications system. A polarization state of the signal is detected at a selected detection point downstream of the launch point. The PDE is evaluated using the predetermined initial polarization state and the detected polarization state.

摘要翻译： 一种方法和系统能够测量包括多个级联光学部件的光通信系统中的偏振相关损耗（PDL）。 具有预定初始极化状态的光信号被发射到光通信系统中。 在发射点下游的选择的检测点处检测信号的偏振状态。 使用预定的初始极化状态和检测到的偏振状态来评估PDE。

公开(公告)号：US07197031B2

公开(公告)日：2007-03-27

申请号：US09992410

申请日：2001-11-26

申请人： Malcolm Betts ,  Kim B. Roberts ,  Ronald J. Gagnon

发明人： Malcolm Betts ,  Kim B. Roberts ,  Ronald J. Gagnon

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0478 ,  H04J3/0623 ,  H04J3/1611 ,  H04J2203/0003 ,  H04J2203/0014 ,  Y10S370/907

摘要： A serial data stream is mapped through a cross-connect via two or more parallel independent shelves. The serial data stream is split into at least two sub-streams. If the lead frame of a sub-stream contains a concatenation indicator, it is replaced by a valid payload pointer, and a spilt indicator is inserted into the frame. Each of the sub-streams is then mapped through the cross-connect via a respective parallel independent shelf. Finally, the sub-streams are recombined to form an output serial data stream equivalent to the original serial data stream. If the lead frame of a sub-stream contains a split indicator, a concatenation indicator is inserted into the corresponding frame of the output serial data stream to restore the concatenation of the original serial data stream. Otherwise, a payload pointer within the lead frame is replaced by a valid payload pointer in the corresponding frame of the output data stream.

摘要翻译： 串行数据流通过两个或更多个并行独立的架子通过交叉连接进行映射。 串行数据流被分成至少两个子流。 如果子流的引导帧包含级联指示符，则将其替换为有效的有效载荷指针，并将溢出的指示符插入到该帧中。 然后通过交叉连接经由相应的并行独立搁架映射每个子流。 最后，子流被重组以形成等同于原始串行数据流的输出串行数据流。 如果子流的引导帧包含分离指示符，则将串联指示符插入到输出串行数据流的相应帧中，以恢复原始串行数据流的级联。 否则，引导帧内的有效载荷指针将被输出数据流的相应帧中的有效载荷指针所取代。

公开(公告)号：US07149432B1

公开(公告)日：2006-12-12

申请号：US09722339

申请日：2000-11-28

申请人： Roland A. Smith ,  Kim B. Roberts

发明人： Roland A. Smith ,  Kim B. Roberts

IPC分类号： H04B10/00

CPC分类号： H04J14/02

摘要： Optical equalization across N (an integer, N>1) channels of a multi-channel link of a communications network, is accomplished by averaging effects of optical performance variations within each of the M (an integer, M>1) parallel data signals. At a transmitting end node of the link, each one of the M data signals are distributed across the N channels of the link. Thus a substantially equal portion of each data signal is conveyed through the link in each one of the N channels. At a receiving end node of the link, respective bit-streams received over the N channels to are processed recover the M data signals. As a result, bit error rates of the bit-streams received through each channel are averaged across the M data signals, all of which therefore have a substantially equal aggregate bit error rate.

摘要翻译： 在通信网络的多信道链路的N（整数，N> 1）个信道上的光均衡是通过平均每个M（整数，M> 1）并行数据信号中的光学性能变化的影响来实现的。 在链路的发送端节点，M个数据信号中的每一个分布在链路的N个信道上。 因此，每个数据信号的大致相等的部分通过N个信道中的每一个中的链路被传送。 在链路的接收端节点处，通过N个信道接收的各个比特流被处理，恢复M个数据信号。 结果，在M个数据信号之间平均通过每个通道接收的比特流的比特错误率，因此所有这些比特流都具有基本相等的聚合比特错误率。

公开(公告)号：US07065103B1

公开(公告)日：2006-06-20

申请号：US09552593

申请日：2000-04-19

申请人： Ronald J. Gagnon ,  Kim B. Roberts

发明人： Ronald J. Gagnon ,  Kim B. Roberts

IPC分类号： H04J3/24 ,  H04J3/06 ,  H04Q11/04

CPC分类号： H04J3/0629 ,  H04J3/1611 ,  H04L25/14

摘要： A signal processor is adapted for aligning two or more hyper-concatenated data streams, each data stream being conveyed within a respective parallel channel and having substantially equivalent bit and frame rates. The signal processor comprises a respective channel processor for each channel for processing a respective data stream. Each channel processor includes a framer, a memory, an interface, and an output timer. The framer generates a local strobe signal indicative of a timing of incoming frames of the respective data stream. The memory buffers incoming bits of the respective data stream. The interface selectively sends the local strobe signal to, and receives a master strobe signal from, an adjacent channel processor. The output timer controls a timing of outgoing bits of the respective data stream based on a selected one of the local and master strobe signals.

摘要翻译： 信号处理器适于对准两个或多个超级连接的数据流，每个数据流在相应的并行通道内被传送并且具有基本相同的位和帧速率。 信号处理器包括用于处理相应数据流的每个通道的相应通道处理器。 每个通道处理器包括成帧器，存储器，接口和输出定时器。 成帧器产生指示相应数据流的输入帧的定时的本地选通信号。 存储器缓冲相应数据流的输入位。 接口选择性地将本地选通信号发送到相邻信道处理器并从其接收主选通信号。 输出定时器基于所选择的本地和主选通信号之一控制相应数据流的输出位的定时。

公开(公告)号：US06839523B1

公开(公告)日：2005-01-04

申请号：US09852777

申请日：2001-05-11

申请人： Kim B. Roberts

发明人： Kim B. Roberts

IPC分类号： H04B10/02 ,  H04B10/08

CPC分类号： H04B10/0795 ,  H04B10/0797

摘要： In a method and system for evaluating distributed gain in an optical transmission system, a data signal and a residual pump laser signal propagating in opposite directions within a waveguide are monitored. Modulation of the residual pump laser signal is correlated with low frequency components of the data signal. This correlation is used to determine cross-talk between the data signal pump laser signals, as a function of location within the waveguide. The distributed gain is then evaluated from the cross-talk, using a known relationship, or proportionality, between gain and cross-talk.

摘要翻译： 在用于评估光传输系统中的分布增益的方法和系统中，监视在波导内沿相反方向传播的数据信号和残留泵浦激光信号。 剩余泵激光信号的调制与数据信号的低频分量相关。 该相关性用于确定数据信号泵浦激光信号之间的串扰，作为波导内的位置的函数。 然后使用已知的关系或增益和串扰之间的比例来从串扰评估分布增益。

公开(公告)号：US06222669B1

公开(公告)日：2001-04-24

申请号：US09291186

申请日：1999-04-14

申请人： Kim B. Roberts ,  Ian Hardcastle

发明人： Kim B. Roberts ,  Ian Hardcastle

IPC分类号： H01S300

CPC分类号： H04B10/299 ,  G02F1/3513 ,  G02F1/3515 ,  G02F1/3523 ,  H04B10/25077

摘要： A partial optical regenerator for use in high bit-rate optical systems and useful in WDM applications employing soliton transmission. The regenerator essentially comprises a saturable optical element in a main optical path and a resonant optical circuit coupled to the element. A resonant pulse can be generated from an input data pulse in a number of ways. (A) an input data pulse may be coupled directly to the resonant optical circuit before entering the element; (B) the input data pulse may first saturate the element, resulting in the creation of a counter-propagating pulse; (C) the data pulse may pass through the element and be coupled to the resonant optical circuit upon exit. The resonant pulse travels around the resonant circuit and repeatedly returns to the saturable optical element after an integer multiple of the symbol duration or after an odd integer multiple of half the symbol duration. Successive saturation of the element causes the output data pulses to be better aligned with respect to the center of the symbol interval.

摘要翻译： 用于高比特率光学系统的部分光学再生器，并且可用于使用孤子传输的WDM应用中。 再生器主要包括主光路中的可饱和光学元件和耦合到元件的谐振光电路。 可以通过多种方式从输入数据脉冲产生谐振脉冲。 （A）输入数据脉冲可以在进入元件之前直接耦合到谐振光电路; （B）输入数据脉冲可以首先饱和元件，导致反向传播脉冲的产生; （C）数据脉冲可以穿过该元件并且在退出时耦合到谐振光电路。 谐振脉冲在谐振电路周围传播，并且在符号持续时间的整数倍之后或在符号持续时间的一半的奇整数倍之后重复地返回到可饱和光学元件。 元件的连续饱和使得输出数据脉冲相对于符号间隔的中心更好地对准。

公开(公告)号：US5579328A

公开(公告)日：1996-11-26

申请号：US513280

申请日：1995-08-10

申请人： Richard A. Habel ,  Kim B. Roberts

发明人： Richard A. Habel ,  Kim B. Roberts

IPC分类号： H01S5/06 ,  H01S5/068 ,  H01S5/0683 ,  H01S3/13

CPC分类号： H01S5/06825 ,  H01S5/06832 ,  H01S5/0617

摘要： A digital controller for an injection laser diode. The controller maintains the laser diode average and peak power levels constant in spite of temperature and/or aging effects. A pseudo-random sequence is superimposed on the `0` and/or `1` current levels to the laser diode and the optical output is detected by a back facet monitor. The detected signal is compared with preset references and a feedback signal is used to control both the bias current and the modulation current.

摘要翻译： 一种用于注入激光二极管的数字控制器。 尽管温度和/或老化效应，控制器保持激光二极管的平均值和峰值功率水平恒定。 伪随机序列叠加在激光二极管的'0'和/或'1'电流电平上，并且光输出由背面监视器检测。 将检测到的信号与预设参考值进行比较，并使用反馈信号来控制偏置电流和调制电流。

公开(公告)号：US11201695B2

公开(公告)日：2021-12-14

申请号：US17226287

申请日：2021-04-09

申请人： Shahab Oveis Gharan ,  Mohammad Ehsan Seifi ,  Kim B. Roberts

发明人： Shahab Oveis Gharan ,  Mohammad Ehsan Seifi ,  Kim B. Roberts

IPC分类号： H04L1/00 ,  H03M13/00 ,  H03M13/29 ,  H03M13/15

摘要： A method performed at an electronic device comprises receiving information bits, a first nub, and a second nub, each nub comprising redundant values; calculating first calculated determiners from first subsets of the information bits along a first dimension; calculating first corrected determiners by applying first FEC decoding to a combination of the first calculated determiners and the first nub; correcting at least one error in the information bits using a difference between the first corrected determiners and the first calculated determiners; calculating second calculated determiners from second subsets of the information bits along a second dimension that differs from the first dimension; calculating second corrected determiners by applying second FEC decoding to a combination of the second calculated determiners and the second nub; and correcting at least one additional error in the information bits using a difference between the second corrected determiners and the second calculated determiners.