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公开(公告)号：US20160301495A1
公开(公告)日：2016-10-13
申请号：US15089699
申请日：2016-04-04
Applicant: NEC Laboratories America, Inc.
Inventor： Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04J14/02
CPC classification number: H04J14/021 , H04J14/0204 , H04J14/0205 , H04J14/0217
Abstract: A reconfigurable optical add/drop multiplexer (ROADM) system includes a transponder aggregator section with one or more transponder aggregators; N input ports and N output ports, each coupled to the transponder aggregators and to a cross-connect module having a variable optical splitter or variable optical coupler (VOS/VOC); and a controller to set the VOS/VOC into one of a Multicast & Select configuration and a Route & Combine configuration.
Abstract translation: 可重新配置的光分插复用器（ROADM）系统包括具有一个或多个转发器聚合器的转发器聚合器部分; N个输入端口和N个输出端口，每个输出端口耦合到应答器聚合器和具有可变分光器或可变光耦合器（VOS / VOC）的交叉连接模块; 以及将VOS / VOC设置为组播＆选择配置和路由和组合配置之一的控制器。
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公开(公告)号：US09369409B2
公开(公告)日：2016-06-14
申请号：US14307573
申请日：2014-06-18
Applicant: NEC Laboratories America, Inc.
Inventor： Junqiang Hu , Yoshinobu Ooto , Kazuo Takagi , Yoshiaki Aono , Ting Wang
IPC: H04L12/939 , H04L12/721 , H04L12/735 , H04L12/703 , H04L12/723 , H04L12/801
CPC classification number: H04L49/557 , H04L45/1283 , H04L45/28 , H04L45/50 , H04L45/68 , H04L45/70 , H04L47/34
Abstract: A method and system are described for providing hitless protection in a packet switched network having source nodes and destination nodes. The method includes enabling a working path and a protecting path between the source and destination nodes. The working path is non-overlapping with respect to the protecting path. The method further includes replicating traffic in a given one of the source nodes to generate replicated traffic. The method also includes forwarding the traffic and the replicated traffic through a working path and a protecting path, respectively, from the given one of the source nodes to a particular one of the destination nodes. The method additionally includes delivering a hitless-protected service in the particular one of the destination nodes by selecting traffic packets received from either the working path or the protecting path.
Abstract translation: 描述了一种用于在具有源节点和目的地节点的分组交换网络中提供无中断保护的方法和系统。 该方法包括启用源节点和目的节点之间的工作路径和保护路径。 工作路径与保护路径不重叠。 该方法还包括在给定的一个源节点中复制业务以生成复制业务。 该方法还包括将业务和复制的业务分别通过工作路径和保护路径转发到从给定的一个源节点到目标节点的特定一个。 该方法还包括通过选择从工作路径或保护路径接收到的业务分组来递送目标节点中的特定一个节点中的无受保护的服务。
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3.发明授权Method for the compensation of nonlinear impairments in dispersion-managed optical fiber links using phase conjugation and equivalent optical link 有权使用相位共轭和等效光链路补偿色散管理的光纤链路中的非线性损伤的方法公开(公告)号：US09071356B2
公开(公告)日：2015-06-30
申请号：US13628460
申请日：2012-09-27
Applicant: NEC Laboratories America, Inc.
Inventor： Eduardo Mateo , Yoshiaki Aono
IPC: H04B10/08 , H04B10/2543 , H04B10/2531
CPC classification number: H04B10/2543 , H04B10/2531
Abstract: A method for nonlinearity compensation for an optical transmission link includes determining a dispersion effect of a transmission link; applying a phase conjugation to the transmission link, the phase conjugation responsive to an input wave over the transmission link and providing a conjugated version of the input wave; and configuring an optimum equivalent link responsive to the phase conjugation after the transmission link to compensate for a non-linear dispersion effect from said transmission link.
Abstract translation: 一种用于光传输链路的非线性补偿的方法包括确定传输链路的色散效应; 对传输链路应用相位共轭，响应于传输链路上的输入波并提供输入波的共轭版本的相位共轭; 以及响应于所述传输链路之后的相位共轭，配置最佳等效链路，以补偿来自所述传输链路的非线性色散效应。
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公开(公告)号：US09124369B2
公开(公告)日：2015-09-01
申请号：US14155518
申请日：2014-01-15
Applicant: NEC Laboratories America, Inc.
Inventor： Philip Nan Ji , Ting Wang , Yoshiaki Aono
CPC classification number: H04B10/40 , H04B10/506 , H04J14/0298 , H04Q11/0005 , H04Q2011/0016
Abstract: An optical transceiver including a multi-direction variable transmitter including multiple outputs with different subcarriers being directed to different ones of the outputs to go to different directions in a network, and a multi-direction variable receiver for receiving multiple inputs thereby enabling transmission direction in a network with the transceiver at subcarrier granularity and avoiding entire super-channel granularity and enabling unused subcarriers to be utilized for traffic in other directions or destinations and making switching granularity finer for flexibility in the network.
Abstract translation: 一种包括具有不同子载波的多个输出的多方向可变发射机的光收发器被引导到不同的输出端以进入网络中的不同方向;以及多方向可变接收机，用于接收多个输入，从而使能在 网络与收发器在子载波粒度和避免整个超频道粒度，并使未使用的子载波可用于其他方向或目的地的业务，并使交换粒度更好的网络灵活性。
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5.发明授权公开(公告)号：US09002195B2
公开(公告)日：2015-04-07
申请号：US13628572
申请日：2012-09-27
Applicant: NEC Laboratories America, Inc.
Inventor： Junqiang Hu , Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04B10/00 , H04B10/038 , H04B10/032
CPC classification number: H04B10/038 , H04B10/032
Abstract: In an optical communication system containing a primary line and backup line card, a method includes providing interfaces for the primary and backup line card, each line card including a transmitter and receiver; and selecting output from the transmitter from either the primary or back up line card including selecting the backup line card when the primary line card encounters a failure.
Abstract translation: 在包含主线路和备用线路卡的光通信系统中，一种方法包括提供用于主线路和备用线路卡的接口，每个线路卡包括发射机和接收机; 以及从主或备用线卡选择发射机的输出，包括当主线卡遇到故障时选择备用线路卡。
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Patent Agency Ranking
公开(公告)号：US20140205286A1
公开(公告)日：2014-07-24
申请号：US14155518
申请日：2014-01-15
Applicant: NEC Laboratories America, Inc.
Inventor： Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04Q11/00
CPC classification number: H04B10/40 , H04B10/506 , H04J14/0298 , H04Q11/0005 , H04Q2011/0016
Abstract: An optical transceiver including a multi-direction variable transmitter including multiple outputs with different subcarriers being directed to different ones of the outputs to go to different directions in a network, and a multi-direction variable receiver for receiving multiple inputs thereby enabling transmission direction in a network with the transceiver at subcarrier granularity and avoiding entire super-channel granularity and enabling unused subcarriers to be utilized for traffic in other directions or destinations and making switching granularity finer for flexibility in the network.
Abstract translation: 一种包括具有不同子载波的多个输出的多方向可变发射机的光收发器被引导到不同的输出端以进入网络中的不同方向;以及多方向可变接收机，用于接收多个输入，从而使能在 网络与收发器在子载波粒度和避免整个超频道粒度，并使未使用的子载波可用于其他方向或目的地的业务，并使交换粒度更好的网络灵活性。
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公开(公告)号：US20130259474A1
公开(公告)日：2013-10-03
申请号：US13855104
申请日：2013-04-02
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： Philip N. Ji , Yoshiaki Aono , Ting Wang
IPC: H04J14/02
CPC classification number: H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0217
Abstract: The present principles are directed to a transponder aggregator-based optical loopback in a multi-degree colorless, directionless, contention-less, reconfigurable optical add/drop multiplexer. The multiplexer includes a reconfigurable optical add/drop multiplexer section for performing connect operations for wavelength division multiplexing signals among all degrees. The section has a plurality of subsections. Each of the subsections corresponds to a respective one of the degrees and has an optical separator at an input side and an optical combiner at an output side. The multiplexer further includes a transponder aggregator section having a split-and-select switch-based transponder aggregator. The multiplexer also includes an optical line loopback having a connection path between the optical separator at the input side and the optical combiner at the output side of at least one of the subsections.
Abstract translation: 本原理涉及在多度无色，无方向，无竞争的可重配置的光分插复用器中的基于转发器聚合器的光环回。 复用器包括可重配置的光分插复用器部分，用于在所有度之间执行波分复用信号的连接操作。 该部分有多个子部分。 每个子部分对应于相应的度数，并且在输入侧具有光学分离器，在输出侧具有光学合成器。 多路复用器还包括具有分组选择基于交换机的应答器聚合器的转发器聚合器部分。 复用器还包括具有在输入侧的光学分离器与至少一个子部分的输出侧的光学组合器之间的连接路径的光学线路环回。
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8.发明申请Optimal Combined 2R/3R Regenerators Placement Method for Line Network Topologies in Optical WDM Networks 有权光学WDM网络中线路网络拓扑结构的优化组合2R / 3R再生器放置方法公开(公告)号：US20130089323A1
公开(公告)日：2013-04-11
申请号：US13644470
申请日：2012-10-04
Applicant: NEC Laboratories America, Inc.
Inventor： Ankitkumar N. Patel , Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04J14/02
CPC classification number: H04J14/02 , H04B10/0793 , H04B10/07953 , H04B10/299 , H04J14/021 , H04J14/0227 , H04J14/0271
Abstract: A method for optimal combined 2R/3R regenerators placement for optical transmission includes determining an optimal placement of multiple 2R and 3R regenerators that minimizes bit error rate BER at a destination node, determining an optimal number of the 2R and 3R regenerators that minimizes a total cost while satisfying the BER at the destination node, and determining an optimal placement of the 2R and 3R regenerators along a route in the optical transmission.
Abstract translation: 用于光传输的最佳组合的2R / 3R再生器放置的方法包括确定最小化目的地节点处的误码率BER的多个2R和3R再生器的最佳布置，确定最小化总成本的2R和3R再生器的最佳数量 同时满足目的地节点处的BER，并且确定2R和3R再生器沿着光传输中的路由的最佳放置。
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9.发明申请公开(公告)号：US20130170825A1
公开(公告)日：2013-07-04
申请号：US13628572
申请日：2012-09-27
Applicant: NEC Laboratories America, Inc.
Inventor： Junqiang Hu , Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04B10/038
CPC classification number: H04B10/038 , H04B10/032
Abstract: In an optical communication system containing a primary line and backup line card, a method includes providing interfaces for the primary and backup line card, each line card including a transmitter and receiver; and selecting output from the transmitter from either the primary or back up line card including selecting the backup line card when the primary line card encounters a failure.
Abstract translation: 在包含主线路和备用线路卡的光通信系统中，一种方法包括提供用于主线路和备用线路卡的接口，每个线路卡包括发射机和接收机; 以及从主或备用线卡选择发射机的输出，包括当主线卡遇到故障时选择备用线路卡。
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公开(公告)号：US11686602B2
公开(公告)日：2023-06-27
申请号：US17196939
申请日：2021-03-09
Applicant: NEC Laboratories America, Inc.
Inventor： Ming-Fang Huang , Ting Wang , Tiejun Xia , Glenn Wellbrock , Yoshiaki Aono
CPC classification number: G01D5/35338 , G01H9/004 , G01K11/32 , H04B10/25
Abstract: A method of providing a hybrid distributed fiber optic sensing system (DFOS) that extends an existing fiber optic telecommunications network thereby providing that existing fiber optic telecommunications network with DFOS capabilities. The method provides a length of fiber optic cable, wherein said fiber optic cable conveys communications traffic; provides a DFOS interrogator system in optical communication with the communications fiber optic cable; extends the length of communications fiber optic cable with first and second lengths of fiber optic sensory cable, and operates the DFOS interrogator system such that first sensory data is generated in the first length of fiber optic sensory cable and second sensory data is generated in the second length of fiber optic sensory cable and conveyed to the DFOS interrogator system via the communications fiber optic cable, wherein the first type of sensory data and the second type of sensory data is a type selected from the group consisting of acoustic data, temperature data, and vibration data and the first type of sensory data is not the same type as the second type of sensory data.
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