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1. 发明授权

US09461745B2 Optimizing optical network simulations 有权
标题翻译：优化光网络仿真
公开(公告)号：US09461745B2
公开(公告)日：2016-10-04
申请号：US13427071
申请日：2012-03-22
申请人： Olga Vassilieva , Inwoong Kim , Motoyoshi Sekiya
发明人： Olga Vassilieva , Inwoong Kim , Motoyoshi Sekiya
IPC分类号： G06F7/60 , H04B10/27
CPC分类号： H04B10/27
摘要： According to an aspect of an embodiment, a method of modeling an optical signal transmission path may include obtaining first transmission characteristics of an optical signal transmission path within an optical network based on a parameter of the optical network and randomly changing states of polarization of an optical signal within the optical signal transmission path. The method may also include obtaining second transmission characteristics of the optical signal transmission path based on the parameter and a first fixed state of polarization of the optical signal. The method may also include correlating the first transmission characteristics with the second transmission characteristics to obtain an effective state of polarization of the optical signal. A simulation of the optical signal transmission path based on the parameter and the effective state of polarization of the optical signal may produce transmission characteristics that may approximate the first transmission characteristics.
摘要翻译：根据实施例的一个方面，对光信号传输路径进行建模的方法可以包括基于光网络的参数获得光网络内的光信号传输路径的第一传输特性，并随机改变光学器件的偏振态信号在光信号传输路径内。该方法还可以包括基于参数和光信号的第一固定偏振状态来获得光信号传输路径的第二传输特性。该方法还可以包括将第一传输特性与第二传输特性相关联以获得光信号的有效极化状态。基于参数和光信号的有效极化状态的光信号传输路径的模拟可以产生可以接近第一传输特性的传输特性。

2. 发明授权

US08965198B2 System and method for shared mesh restoration in optical networks 有权
标题翻译：光网络中共享网格恢复的系统和方法
公开(公告)号：US08965198B2
公开(公告)日：2015-02-24
申请号：US13658587
申请日：2012-10-23
申请人： Qiong Zhang , Paparao Palacharla , Xi Wang , Motoyoshi Sekiya
发明人： Qiong Zhang , Paparao Palacharla , Xi Wang , Motoyoshi Sekiya
IPC分类号： H04B10/00
CPC分类号： H04J14/0284 , H04J14/0212 , H04J14/0217 , H04J14/0268
摘要： A method for shared mesh restoration includes configuring a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical add/drop multiplexer (ROADM). The switch is communicatively coupled to the ROADM. The method further includes configuring a number of backup line cards coupled to the switch. The number of backup line cards is based on determining a number of active backup lightpaths for each of a plurality of network failures associated with each of the plurality of node degrees of the ROADM, identifying which node degree and failure has the largest number of active backup lightpaths for all of the plurality of node degrees of the ROADM and for each of the plurality of network failures, and determining the number of backup line cards to configure based on the identified largest number of active backup lightpaths.
摘要翻译：一种用于共享网格恢复的方法包括配置交换机以允许在与可重配置光分插复用器（ROADM）相关联的多个节点度上共享多个备用线卡。交换机通信耦合到ROADM。该方法还包括配置耦合到交换机的多个备用线路卡。备用线路卡的数量基于确定与ROADM的多个节点度中的每一个相关联的多个网络故障中的每一个的主动备用光路的数量，识别哪个节点度和故障具有最大数量的主动备份用于ROADM的所有多个节点度数和多个网络故障中的每一个的光路，以及基于所识别的最大数量的主动备用光路确定要配置的备用线路卡的数量。

3. 发明授权

US08942114B2 System and method for calculating utilization entropy 有权
标题翻译：计算利用熵的系统和方法
公开(公告)号：US08942114B2
公开(公告)日：2015-01-27
申请号：US13165352
申请日：2011-06-21
申请人： Xi Wang , Inwoong Kim , Qiong Zhang , Paparao Palacharla , Motoyoshi Sekiya
发明人： Xi Wang , Inwoong Kim , Qiong Zhang , Paparao Palacharla , Motoyoshi Sekiya
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L43/0882
摘要： A system and method are provided for monitoring traffic in a network comprising a plurality of links, wherein each of the plurality of links comprises a plurality of neighboring pairs of slots. The system and method may include identifying a first usage status and a second usage status, calculating a utilization entropy value based at least on the difference between the first and second usage status, iteratively calculating a set of utilization entropy values for a portion of the network, and calculating an overall utilization entropy value for the portion of the network under analysis based at least on a statistical analysis of the set of utilization entropy values.
摘要翻译：提供了一种用于监视包括多个链路的网络中的业务的系统和方法，其中所述多个链路中的每一个包括多个相邻的时隙对。系统和方法可以包括识别第一使用状态和第二使用状态，至少基于第一和第二使用状态之间的差异来计算使用熵值，迭代地计算网络的一部分的一组利用熵值以及至少基于所述利用熵值集合的统计分析来计算所分析的网络的部分的总利用熵值。

4. 发明授权

US08810782B2 Dispersion measurement apparatus using a wavelet transform to determine a time difference based on indentified peaks 有权
公开(公告)号：US08810782B2
公开(公告)日：2014-08-19
申请号：US13207796
申请日：2011-08-11
申请人： Motoyoshi Sekiya , Yusaku Yamamoto
发明人： Motoyoshi Sekiya , Yusaku Yamamoto
IPC分类号： G01N21/00 , H04B10/077
摘要： A dispersion measurement apparatus includes: a pulse generator to output optical pulses including an optical pulse with a first wavelength and an optical pulse with a second wavelength to an optical transmission path, the second wavelength being different from the first wavelength; a reception pulse analyzer including an optical receiver that receives the optical pulses output by the pulse generator, and an analyzer that performs a wavelet transform on an electrical pulse output through the reception performed by the optical receiver; and a calculator to detect, based on a result of the wavelet transform, a time difference between the optical pulse with the first wavelength and the optical pulse with the second wavelength, and to determine dispersion in the optical transmission path.

5. 发明授权

US08699884B2 Optical transmission system and optical transmission method 失效
标题翻译：光传输系统和光传输方式
公开(公告)号：US08699884B2
公开(公告)日：2014-04-15
申请号：US13137933
申请日：2011-09-21
申请人： Takashi Toyomaki , Motoyoshi Sekiya
发明人： Takashi Toyomaki , Motoyoshi Sekiya
IPC分类号： H04J14/02
CPC分类号： H04B10/0773 , H04B2210/074 , H04J14/0212 , H04J14/0227 , H04J14/0258 , H04J14/0276
摘要： An optical transmission system includes a plurality of optical nodes that transmits wavelength multiplexing light including a plurality of signal light components having different wavelengths, wherein each of the optical nodes includes superimposed signal light generation circuit which superimposes a low frequency signal having a common frequency on a corresponding signal light component included in the wavelength multiplexing light; low frequency signal extraction circuit which extracts a low frequency signal having a frequency of a given range from a corresponding signal light component; and pass-through node number measurement circuit which measures, for each of the signal light components, a pass-through node number based on the frequency of the low frequency signal extracted by the low frequency signal extraction circuit, the pass-through node number being the number of optical nodes through which the signal light component has passed before being transmitted to a specific optical node.
摘要翻译：一种光传输系统包括多个发送包括具有不同波长的多个信号光分量的波分复用光的光节点，其中每个光节点包括叠加信号光生成电路，该电路将具有共同频率的低频信号叠加在包括在波长复用光中的相应信号光分量; 低频信号提取电路，从对应的信号光分量中提取具有给定范围的频率的低频信号; 以及直通节点号测量电路，对于每个信号光分量，测量基于由低频信号提取电路提取的低频信号的频率的直通节点数，直通节点数为信号光分量在被传输到特定光节点之前经过的光节点的数量。

6. 发明申请

US20140052419A1 PROBABILITY-BASED REGENERATOR SITE ANALYSIS 有权
标题翻译：基于概率的再生器站点分析
公开(公告)号：US20140052419A1
公开(公告)日：2014-02-20
申请号：US13585663
申请日：2012-08-14
申请人： Xi WANG , Qiong ZHANG , Paparao PALACHARLA , Motoyoshi SEKIYA
发明人： Xi WANG , Qiong ZHANG , Paparao PALACHARLA , Motoyoshi SEKIYA
IPC分类号： G06G7/62 , G06F17/10
CPC分类号： H04Q11/00 , H04J14/00 , H04L41/142 , H04L41/145 , H04Q2213/13164 , H04Q2213/13335
摘要： An optical network analysis tool includes a computer-readable storage medium having computer-readable instructions stored thereon. The computer-readable instructions are executable by a computing device to perform operations. The operations include generating a simulated network that models an optical network. The simulated network includes regenerator candidate sites. The operations may also include conducting an analysis of the optical network. The analysis includes introducing a multiple signals transmitted between source/destination pairs and recording a number of times each of the regenerator candidate sites are selected as a regenerator site while applying each of a set of data traffic conditions in the simulated network. The operations may also include statistically analyzing the number of times each of the regenerator candidate sites is selected to generate statistically analyzed information and presenting the statistically analyzed information.
摘要翻译：光网络分析工具包括其上存储有计算机可读指令的计算机可读存储介质。计算机可读指令可由计算设备执行以执行操作。这些操作包括生成模拟光网络的模拟网络。模拟网络包括再生器候选站点。这些操作还可以包括进行光网络的分析。分析包括引入在源/目的地对之间传输的多个信号，并且在将模拟网络中的一组数据业务条件应用中的每一个的同时，将每个再生器候选站点选择为多个次数作为再生站站点进行记录。操作还可以包括统计分析每个再生器候选位点被选择以产生统计分析的信息并呈现统计分析的信息的次数。

7. 发明申请

US20140023362A1 POLARIZATION DEPENDENT LOSS COMPENSATION 有权
标题翻译：极化依赖性损失补偿
公开(公告)号：US20140023362A1
公开(公告)日：2014-01-23
申请号：US13552252
申请日：2012-07-18
申请人： Olga VASSILIEVA , Inwoong KIM , Motoyoshi SEKIYA
发明人： Olga VASSILIEVA , Inwoong KIM , Motoyoshi SEKIYA
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04B10/0795 , H04B10/2572 , H04B10/532
摘要： An apparatus including a polarization controller is described. The polarizer controller is communicatively coupled via a feedback loop to an evaluation module located near an optical receiver. The evaluation module is configured to measure polarization dependent loss (PDL) of an optical signal received at the optical receiver. The polarization controller is configured to receive feedback control data regarding the PDL from the evaluation module. Additionally, the polarization controller is configured to modify a state of polarization of the optical signal at an optical transmitter, which is communicatively coupled to the optical receiver, based on the feedback control data.
摘要翻译：描述了包括偏振控制器的装置。偏振器控制器经由反馈回路通信耦合到位于光接收器附近的评估模块。评估模块被配置为测量在光接收器处接收的光信号的偏振相关损耗（PDL）。偏振控制器被配置为从评估模块接收关于PDL的反馈控制数据。另外，偏振控制器被配置为基于反馈控制数据来修改在光发射器处的光信号的偏振状态，光发射器通信地耦合到光接收器。

8. 发明申请

US20120328286A1 System and Method for Calculating Utilization Entropy 有权
标题翻译：计算利用熵的系统和方法
公开(公告)号：US20120328286A1
公开(公告)日：2012-12-27
申请号：US13165352
申请日：2011-06-21
申请人： Xi Wang , Inwoong Kim , Qiong Zhang , Paparao Palacharla , Motoyoshi Sekiya
发明人： Xi Wang , Inwoong Kim , Qiong Zhang , Paparao Palacharla , Motoyoshi Sekiya
IPC分类号： H04B17/00 , H04L12/26
CPC分类号： H04L43/0882
摘要： A system and method are provided for monitoring traffic in a network comprising a plurality of links, wherein each of the plurality of links comprises a plurality of neighboring pairs of slots. The system and method may include identifying a first usage status and a second usage status, calculating a utilization entropy value based at least on the difference between the first and second usage status, iteratively calculating a set of utilization entropy values for a portion of the network, and calculating an overall utilization entropy value for the portion of the network under analysis based at least on a statistical analysis of the set of utilization entropy values.
摘要翻译：提供了一种用于监视包括多个链路的网络中的业务的系统和方法，其中所述多个链路中的每一个包括多个相邻的时隙对。系统和方法可以包括识别第一使用状态和第二使用状态，至少基于第一和第二使用状态之间的差异来计算使用熵值，迭代地计算网络的一部分的一组利用熵值以及至少基于所述利用熵值集合的统计分析来计算所分析的网络的部分的总利用熵值。

9. 发明申请

US20120263455A1 METHOD AND SYSTEM FOR CALCULATING SPECTRUM GRANULARITY IN FLEXIBLE GRID OPTICAL NETWORKS 有权
标题翻译：柔性网格光网络光谱粒度计算方法与系统
公开(公告)号：US20120263455A1
公开(公告)日：2012-10-18
申请号：US13175154
申请日：2011-07-01
申请人： Xi Wang , Qiong Zhang , Inwoong Kim , Paparao Palacharla , Motoyoshi Sekiya
发明人： Xi Wang , Qiong Zhang , Inwoong Kim , Paparao Palacharla , Motoyoshi Sekiya
IPC分类号： H04B17/00
CPC分类号： H04J14/026 , H04J14/0224 , H04J14/0257
摘要： In accordance with embodiments of the present disclosure, a method may include determining individual spectrum requirements for each of a plurality of signals to be communicated in an optical network, wherein a first signal of the plurality of signals has a first spectrum requirement and a second signal of the plurality of signals has a second spectrum requirement. The method may also include calculating a minimum spectrum granularity based on the individual spectrum requirements. The method may further include assigning each particular signal a channel spectrum equal to an integer multiple of the minimum spectrum granularity.
摘要翻译：根据本公开的实施例，一种方法可以包括确定要在光网络中传送的多个信号中的每个信号的各个频谱要求，其中多个信号中的第一信号具有第一频谱要求和第二信号的多个信号具有第二频谱要求。该方法还可以包括基于各个频谱要求来计算最小频谱粒度。该方法还可以包括将每个特定信号分配为等于最小频谱粒度的整数倍的信道频谱。

10. 发明授权

US07742702B2 Chirp switching circuit and optical transmission system 失效
标题翻译：啁啾开关电路和光传输系统
公开(公告)号：US07742702B2
公开(公告)日：2010-06-22
申请号：US11360386
申请日：2006-02-24
申请人： Motoyoshi Sekiya
发明人： Motoyoshi Sekiya
IPC分类号： H04B10/00
CPC分类号： H04B10/25137 , H04B10/505
摘要： A chirp switching circuit comprises a Mach-Zehnder modulator having a Y-branched part for branching an incoming optical signal into first and second optical signals and an X-branched part merging the first and second optical signals with each other, the Mach-Zehnder modulator causing phase modulation in the first and second optical signals by a modulation signal, and a directional coupling optical switch that switches first and second optical output signals output from the X-branched part of the Mach-Zehnder modulator by merging the first and second output optical signals in response to a chirp switching control signal.
摘要翻译：啁啾开关电路包括具有Y分支部分的马赫 - 曾德调制器，用于将入射光信号分支为第一和第二光信号，以及将第一和第二光信号彼此合并的X分支部分，马赫 - 曾德调制器通过调制信号引起第一和第二光信号中的相位调制，以及定向耦合光开关，其通过合并第一和第二输出光学器件来切换从马赫 - 曾德调制器的X分支部分输出的第一和第二光输出信号响应啁啾开关控制信号的信号。

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