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公开(公告)号：US20180343058A1
公开(公告)日：2018-11-29
申请号：US15603810
申请日：2017-05-24
申请人： James Harley , Kim B. Roberts , David Boertjes
发明人： James Harley , Kim B. Roberts , David Boertjes
IPC分类号： H04B10/25 , H04B10/079 , H04J14/02 , H04B10/27
摘要： Adjustment of one or more control parameters of a section of an optical fiber network involves taking measurements of optical signals in the section, deriving estimated data from the measurements and from knowledge of the section, where the estimated data is a function of optical nonlinearity and of amplified spontaneous emission, and applying one or more control algorithms using the estimated data to adjust the one or more control parameters.
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公开(公告)号：US07561797B1
公开(公告)日：2009-07-14
申请号：US11362756
申请日：2006-02-28
申请人： James Harley , Kim B. Roberts
发明人： James Harley , Kim B. Roberts
CPC分类号： H04B10/0793
摘要： A method and system for controlling optical signal to noise ratio (OSNR) of an optical signal at a receiver end of an optical link. A multi-bit sample stream is generated using a compensation function adapted to compensate impairments of the optical link A digital noise signal is generated and added to the multi-bit sample stream, and the resulting signal used to generate a degraded optical signal, which is then transmitted through the optical link.
摘要翻译： 一种用于控制光链路的接收机端的光信号的光信噪比（OSNR）的方法和系统。 使用适于补偿光链路的损伤的补偿功能来生成多比特采样流。数字噪声信号被生成并添加到多比特采样流，并且所产生的信号用于产生劣化的光信号，其是 然后通过光链路传输。
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公开(公告)号：US10439751B2
公开(公告)日：2019-10-08
申请号：US15796393
申请日：2017-10-27
IPC分类号： H04B10/079 , H04B10/294 , H04J14/02 , H04Q11/00 , H04B10/58 , H04B10/2557 , H04B10/255
摘要： Multiple receivers are comprised in a flexible coherent transceiver of a multi-span optical fiber network. Each of the multiple receivers is operative to handle communications on a respective channel. The multiple receivers measure optical characteristics. For each of the multiple receivers, the optical characteristics include optical nonlinear interactions on the respective channel, the optical nonlinear interactions being at least partially dependent from one span to another span. An optical power of a signal on each of the multiple channels is adjusted as a function of the optical characteristics.
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公开(公告)号：US10142022B1
公开(公告)日：2018-11-27
申请号：US15603810
申请日：2017-05-24
申请人： James Harley , Kim B. Roberts , David Boertjes
发明人： James Harley , Kim B. Roberts , David Boertjes
IPC分类号： H04B10/294 , H04B10/25 , H04B10/079 , H04J14/02 , H04B10/27
CPC分类号： H04B10/2504 , H04B10/07955 , H04B10/27 , H04J14/0212
摘要： Adjustment of one or more control parameters of a section of an optical fiber network involves taking measurements of optical signals in the section, deriving estimated data from the measurements and from knowledge of the section, where the estimated data is a function of optical nonlinearity and of amplified spontaneous emission, and applying one or more control algorithms using the estimated data to adjust the one or more control parameters.
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35.发明授权公开(公告)号：US08230294B2
公开(公告)日：2012-07-24
申请号：US12182575
申请日：2008-07-30
IPC分类号： G06F11/00
CPC分类号： H03M13/1134 , H03M13/1114 , H04L1/0052 , H04L1/0057
摘要： In a decoder implementing a belief propagation algorithm for iteratively decoding a Low Density Parity Check (LDPC) encoded data block, a method of computing messages to be sent by a first node of the decoder to at least one neighbor node of the decoder. The method comprises: processing messages received by the first node to remove an echo of a previous message sent by the first node to the at least one neighbor node in a previous iteration, to yield corresponding modified messages; computing a message for a current iteration using the modified messages; and broadcasting the computed message for the current iteration to each of the at least one neighbor nodes.
摘要翻译： 在实现用于对低密度奇偶校验（LDPC）编码数据块进行迭代解码的置信传播算法的解码器中，一种计算将要由解码器的第一节点发送到解码器的至少一个相邻节点的消息的方法。 该方法包括：处理由第一节点接收的消息，以将先前迭代中的第一节点发送的先前消息的回波消除到至少一个相邻节点，以产生相应的修改消息; 使用修改的消息计算当前迭代的消息; 以及将针对当前迭代的所计算的消息广播到所述至少一个相邻节点中的每一个。
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公开(公告)号：US07894721B2
公开(公告)日：2011-02-22
申请号：US11533166
申请日：2006-09-19
申请人： Kim B. Roberts , Genzao G. Zhang , James Harley , Feng Shi , Leo Strawczynski
发明人： Kim B. Roberts , Genzao G. Zhang , James Harley , Feng Shi , Leo Strawczynski
CPC分类号： H04J14/0227 , H04B10/0793 , H04J14/0201 , H04J14/0221 , H04J14/0246 , H04J14/0279
摘要： An optical network system having a global controller capable of controlling all the elements of the network. The controller receives performance data from each optical network element and calculates a performance value for each channel transmitting through the system. The controller then isolates the channel with the minimum performance value and tests possible changes in network element parameters to find a change which would increase this performance value. Once such a change is found, it is implemented and the system is reoptimized.
摘要翻译： 一种具有能够控制网络的所有元素的全局控制器的光网络系统。 控制器从每个光网络元件接收性能数据，并计算通过系统传输的每个通道的性能值。 然后，控制器将通道与最小性能值隔离，并测试网元参数的可能变化，以找到会增加此性能值的更改。 一旦发现了这样的变化，就会实现这一改变，系统被重新优化。
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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
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。
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公开(公告)号：US20200036468A1
公开(公告)日：2020-01-30
申请号：US16593441
申请日：2019-10-04
申请人： Kim B. Roberts , James Harley , David BOERTJES
发明人： Kim B. Roberts , James Harley , David BOERTJES
IPC分类号： H04J14/02 , H04B10/2543 , H04B10/079 , H04Q11/00 , H04B10/58
摘要： A processor of an apparatus is configured to apply one or more control algorithms using estimated data to adjust the one or more control parameters of a section of an optical fiber network. The estimated data are derived from measurements of optical signals in the section and from knowledge of the section. The estimated data is a function of optical nonlinearity and of amplified spontaneous emission.
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公开(公告)号：US10236981B2
公开(公告)日：2019-03-19
申请号：US15648895
申请日：2017-07-13
申请人： James Harley , Kim B. Roberts , David Boertjes
发明人： James Harley , Kim B. Roberts , David Boertjes
IPC分类号： H04B10/294 , H04B10/25 , H04B10/079 , H04B10/27 , H04J14/02
摘要： A processor of an apparatus is configured to apply one or more control algorithms using estimated data to adjust the one or more control parameters of a section of an optical fiber network. The estimated data are derived from measurements of optical signals in the section and from knowledge of the section. The estimated data is a function of optical nonlinearity and of amplified spontaneous emission.
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40.发明申请公开(公告)号：US20100031114A1
公开(公告)日：2010-02-04
申请号：US12182575
申请日：2008-07-30
CPC分类号： H03M13/1134 , H03M13/1114 , H04L1/0052 , H04L1/0057
摘要： In a decoder implementing a belief propagation algorithm for iteratively decoding a Low Density Parity Check (LDPC) encoded data block, a method of computing messages to be sent by a first node of the decoder to at least one neighbour node of the decoder. The method comprises: processing messages received by the first node to remove an echo of a previous message sent by the first node to the at least one neighbour node in a previous iteration, to yield corresponding modified messages; computing a message for a current iteration using the modified messages; and broadcasting the computed message for the current iteration to each of the at least one neighbour nodes.
摘要翻译： 在实现用于对低密度奇偶校验（LDPC）编码数据块进行迭代解码的置信传播算法的解码器中，一种计算将要由解码器的第一节点发送到解码器的至少一个相邻节点的消息的方法。 该方法包括：处理由第一节点接收的消息，以将先前迭代中的第一节点发送的先前消息的回波消除到至少一个相邻节点，以产生相应的修改消息; 使用修改的消息计算当前迭代的消息; 以及将针对当前迭代的所计算的消息广播到所述至少一个相邻节点中的每一个。
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