公开(公告)号：US09413485B2

公开(公告)日：2016-08-09

申请号：US14312610

申请日：2014-06-23

Applicant: NEC Laboratories America, Inc.

Inventor： Ankitkumar Patel ,  Philip Ji ,  Ting Wang

IPC: G06F15/173 ,  H04J14/02 ,  H04L29/08 ,  H04L12/24 ,  G06F9/46

CPC classification number: H04J14/0227 ,  G06F9/46 ,  H04L41/0896 ,  H04L45/12 ,  H04L67/10

Abstract: A method for solving a cloud embedding problem includes first mapping virtual links over physical links followed by virtual nodes over physical nodes. The inventive method entails an efficient procedure, namely network followed by compute load balancing (NCLB), that first maps virtual links over physical links while balancing network resources, and finally, maps virtual nodes over physical nodes while balancing different types of computational resources.

Abstract translation: 解决云嵌入问题的方法包括首先通过物理链路跟踪物理节点之后的虚拟节点映射虚拟链路。 本发明的方法需要有效的过程，即网络，然后是计算负载平衡（NCLB），其首先在物理链路上映射虚拟链路，同时平衡网络资源，最后，通过物理节点映射虚拟节点，同时平衡不同类型的计算资源。

公开(公告)号：US20160146721A1

公开(公告)日：2016-05-26

申请号：US14949261

申请日：2015-11-23

Applicant: NEC Laboratories America, Inc.

Inventor： Philip Ji ,  Ting Wang

IPC: G01N21/15 ,  B08B7/02 ,  G01N21/31

CPC classification number: B08B7/028 ,  B08B17/02 ,  G01N21/15 ,  G01N2021/154

Abstract: An open path optical sensing system having an ultrasonic cleaner. The system includes at least one ultrasound transducer which is configured to propagate ultrasonic waves across exposed surfaces of optical components of the optical sensing system. The ultrasonic waves create tiny vibrations on the exposed surfaces of the optical components which clean the surfaces of environmental pollutants and prevent environmental pollutants from accumulating on the surface. The ultrasonic waves may have a frequency that is substantially different than the modulation frequency of a modulated laser light beam that is generated by a laser of the open path optical sensing system. The surfaces of a plurality of optical components may be cleaned by the ultrasonic waves of a single ultrasound transducer. A plurality of ultrasound transducers may propagate waves on a single optical component.

Abstract translation: 一种具有超声波清洗器的开路光学感测系统。 该系统包括至少一个超声波换能器，其被配置为在超声波传播光学传感系统的光学部件的暴露表面上传播超声波。 超声波在光学部件的暴露表面产生微小的振动，清洁环境污染物的表面，防止环境污染物积聚在表面。 超声波可以具有与由开放光路传感系统的激光产生的调制激光束的调制频率基本上不同的频率。 可以通过单个超声换能器的超声波来清洁多个光学部件的表面。 多个超声换能器可以在单个光学部件上传播波。

公开(公告)号：US20160105243A1

公开(公告)日：2016-04-14

申请号：US14747743

申请日：2015-06-23

Applicant: NEC Laboratories America, Inc.

Inventor： Ting Wang ,  Ivan Djordjevic

IPC: H04B10/532 ,  H03M13/45 ,  H03M13/11

CPC classification number: H04B10/532 ,  H03M13/255 ,  H03M13/6325

Abstract: Systems and methods for communication using an optical transmission system having optical transmitters and receivers includes performing a low-density parity-check (LDPC) encoding; performing nonbinary pm-ary signaling, where p is a prime larger than 2; taking m p-ary symbols at a time and selecting a point from pm-ary signal constellation; after up-sampling and driving amplification, using coordinates of the pm-ary constellation as input of I/Q modulator x (y); combining two independent pm-ary streams corresponding to x and y-polarization states by a polarization beam combiner (PBS) and transmitting data over the optical transmission system.

Abstract translation: 使用具有光发射机和接收机的光传输系统进行通信的系统和方法包括执行低密度奇偶校验（LDPC）编码; 执行非二进制pm-ary信令，其中p是大于2的素数; 一次采取m个p元符号，并从pm-ary信号星座中选择一个点; 在采样和驱动放大之后，使用pm-ary星座的坐标作为I / Q调制器x（y）的输入; 通过偏振光束组合器（PBS）组合对应于x和y偏振状态的两个独立的pm-流，并通过光传输系统传输数据。

公开(公告)号：US09184854B2

公开(公告)日：2015-11-10

申请号：US14044518

申请日：2013-10-02

Applicant: NEC Laboratories America, Inc.

Inventor： Eduardo F. Mateo ,  Fatih Yaman ,  Dayou Qian ,  Ting Wang

IPC: H04B10/06 ,  H04B10/61

CPC classification number: H04B10/6163

Abstract: An optical communication system includes a digital signal processer coupled to the coherent receiver, said coherent receiver including a nonlinearity compensation module for compensating for nonlinear effects in fiber in the optical link for increasing capacity or transmission distance of the fiber, the nonlinearity compensation module includes a spectral slicing of the signal into bands, computing nonlinear interaction between the bands with parameters opposite to those of the fiber to reverse the non-linear effects in the fiber, and only certain nonlinear interactions between bands are considered thereby reducing complexity of the nonlinearity compensation.

Abstract translation: 光通信系统包括耦合到相干接收机的数字信号处理器，所述相干接收机包括用于补偿光链路中的光纤中的非线性效应的非线性补偿模块，用于增加光纤的容量或传输距离，非线性补偿模块包括 将信号频谱切片成频带，计算具有与光纤相反参数的频带之间的非线性相互作用，以反转光纤中的非线性效应，并且仅考虑频带之间的某些非线性相互作用，从而降低非线性补偿的复杂性。

公开(公告)号：US09077484B2

公开(公告)日：2015-07-07

申请号：US14046588

申请日：2013-10-04

Applicant: NEC Laboratories America, Inc.

Inventor： Shaoliang Zhang ,  Fatih Yaman ,  Ting Wang ,  Yoshihisa Inada ,  Takaaki Ogata ,  Yasuhiro Aoki

IPC: H04B10/04 ,  H04J14/06 ,  H04B10/556

CPC classification number: H04J14/06 ,  H04B10/5561

Abstract: Methods, structures and systems for generating different polarization multiplexed signals wherein the drivers of the modulators are generic while a software-controlled manager allows the carrying of any standard 10 G/40 G/100 G data while—at the same time—being adaptively adjustable according to specific link requirements and users' requests in both dispersion-managed and uncompensated links.

Abstract translation: 用于产生不同偏振复用信号的方法，结构和系统，其中调制器的驱动器是通用的，而软件控制的管理器允许携带任何标准的10G / 40G / 100G数据，同时可自适应地调节 根据具体链路要求和用户在色散管理和无补偿链路中的请求。

公开(公告)号：US20150125152A1

公开(公告)日：2015-05-07

申请号：US14534312

申请日：2014-11-06

Applicant: NEC Laboratories America, Inc.

Inventor： Philip Ji ,  Ting Wang

IPC: H04B10/40 ,  H04J14/00

CPC classification number: H04J14/02 ,  H04B10/5561 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0047

Abstract: A multi direction variable transceiver including a transmitter comprising a subcarrier aggregator including at least one variable transmitter splitter and at least one variable transmitter coupler. The transceiver typically includes a receiver having at least one variable receiver splitter and at least one variable receiver coupler. In some examples, each of the transmitter and the receiver may include a controller for dynamically adjusting a splitting ratio for at least one of the variable receiver splitter, variable receiver coupler, variable transmission splitter and variable transmission coupler.

Abstract translation: 一种多方向可变收发器，包括发射机，包括包括至少一个可变发射机分离器和至少一个可变发射机耦合器的子载波聚合器。 收发器通常包括具有至少一个可变接收机分离器和至少一个可变接收机耦合器的接收机。 在一些示例中，发射机和接收机中的每一个可以包括用于动态地调整可变接收机分离器，可变接收机耦合器，可变传输分配器和可变传输耦合器中的至少一个的分束比的控制器。

公开(公告)号：US08995832B2

公开(公告)日：2015-03-31

申请号：US13855104

申请日：2013-04-02

Applicant: NEC Laboratories America, Inc. ,  NEC Corporation

Inventor： Philip N. Ji ,  Yoshiaki Aono ,  Ting Wang

IPC: H04J14/02 ,  H04B10/08 ,  H04B10/00

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。

公开(公告)号：US20150085647A1

公开(公告)日：2015-03-26

申请号：US14325242

申请日：2014-07-07

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Yoshinobu Ooto ,  Kazuo Takagi ,  Yoshiaki Aono ,  Ting Wang

IPC: H04L12/24 ,  H04L12/703 ,  H04L12/707

CPC classification number: H04L45/28 ,  H04L45/22 ,  H04L45/245 ,  H04L47/266 ,  H04L47/30 ,  Y02D50/30

Abstract: A packet switched communication system to support hitless protection includes a packet processor; a traffic manager with a buffer sized to compensate a maximum skew of each hitless path pair of a working path and a protecting path; and a hitless processor positioned between the packet processor and the traffic manager, wherein an interface between hitless processor and traffic manager has flow control to start or stop (XON/XOFF) traffic.

Abstract translation: 支持无中断保护的分组交换通信系统包括分组处理器; 具有缓冲器的流量管理器，其大小用于补偿工作路径和保护路径的每个无中断路径对的最大偏移; 以及位于分组处理器和流量管理器之间的无中断处理器，其中无中断处理器和流量管理器之间的接口具有启动或停止（XON / XOFF）流量的流量控制。

公开(公告)号：US20140334814A1

公开(公告)日：2014-11-13

申请号：US14271539

申请日：2014-05-07

Applicant: NEC Laboratories America, Inc.

Inventor： Philip Nan Ji ,  Junqiang Hu ,  Ting Wang

IPC: H04J14/02 ,  H04B10/079

CPC classification number: H04J14/0221 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/0797 ,  H04B10/296

Abstract: An optical amplifier that uses software-defined optical networking (SDON) technology, with a centralized controller and flexible physical hardware (the adaptive amplifier here) to optimize the power distribution among different WDM channels in the amplifier. It considers the detailed information for each channel through the information from centralized controller. It is suitable for both single line rate and mixed line rate system, and is suitable for a wavelength division multiplexing WDM system with the same signal type or different signal types.

Abstract translation: 一种使用软件定义光网络（SDON）技术的光放大器，具有集中控制器和灵活的物理硬件（这里的自适应放大器），以优化放大器中不同WDM通道之间的功率分配。 它通过集中控制器的信息来考虑每个通道的详细信息。 适用于单线速率和混合线速系统，适用于具有相同信号类型或不同信号类型的波分复用WDM系统。

公开(公告)号：US20140269980A1

公开(公告)日：2014-09-18

申请号：US14205629

申请日：2014-03-12

Applicant: NEC Laboratories America, Inc.

Inventor： Dayou Qian ,  Eduardo Mateo Rodriquez ,  Ting Wang

IPC: H04B1/04

CPC classification number: H04B1/0483 ,  H04B10/516 ,  H04L25/14 ,  H04L27/2633 ,  H04L27/2636

Abstract: Disclosed are structures and methods for slicing a broadband signal into multiple, narrower bandwidth sub-bands through the use of a look-up table (LUT). An input broadband signal is first loaded by a pre-defined LUT. The LUT is designed with multiple parallel outputs, wherein each output is one individual sub-band.

Abstract translation: 公开了通过使用查找表（LUT）将宽带信号切割成多个较窄带宽子带的结构和方法。 输入宽带信号首先由预定义的LUT加载。 LUT设计有多个并行输出，其中每个输出是一个单独的子带。