公开(公告)号：US20160204856A1

公开(公告)日：2016-07-14

申请号：US14961236

申请日：2015-12-07

Applicant: NEC Laboratories America, Inc.

Inventor： Yawei Yin ,  Konstantinos Kanonakis ,  Philip Ji ,  Ting Wang ,  Shinya Nakamura

IPC: H04B10/038 ,  H04B10/079 ,  H04B10/032

CPC classification number: H04B10/038 ,  H04B10/032 ,  H04B10/0793 ,  H04B10/0795 ,  H04B10/07955 ,  H04Q11/0005

Abstract: Systems and methods are disclosed for data communication by forming a hybrid that includes an electrical switching network with packet granularity of switching and store-and-forward forwarding services to network traffic and an optical switching network providing circuit granularity of switching and optical bypassing services to network traffic; applying local control of optical switching modules in the optical switching network with a network controller coupled to the electrical switching network, the optical switching network, and a loss-of-light detection module; and detecting loss-of-light in a failure point in the optical switching network and rerouting traffic to avoid the optical failure point.

Abstract translation: 公开了用于数据通信的系统和方法，其通过形成包括具有交换分组粒度的交换网络和存储转发转发服务到网络业务的交换网络和向网络提供交换和光旁路服务的电路粒度的光交换网络的混合 交通; 通过耦合到电气交换网络，光交换网络和光损失检测模块的网络控制器对光交换网络中的光交换模块进行本地控制; 并且在光交换网络中的故障点中检测光损耗并重新路由业务以避免光学故障点。

公开(公告)号：US20160202285A1

公开(公告)日：2016-07-14

申请号：US14957587

申请日：2015-12-02

Applicant: NEC Laboratories America, Inc.

Inventor： Ting Wang ,  Yi Weng

IPC: G01P15/093 ,  G01H9/00

CPC classification number: G01P15/093 ,  G01H9/004

Abstract: Systems and methods are disclosed for sensing acceleration or vibration of a physical object, by placing a two-mode elliptical-core optical fiber on the object; receiving optical signals using photo-detector; and determining acceleration as perturbation effects on the differential phase shift between two spatial modes in each polarization or between two polarization modes in each spatial mode for the two-mode elliptical-core optical fiber.

Abstract translation: 公开了通过在物体上放置双模式椭圆芯光纤来感测物体的加速度或振动的系统和方法; 使用光电检测器接收光信号; 并且确定加速度作为对于两模式椭圆芯光纤的每个极化中的两个空间模式之间的差分相移的扰动影响或每个空间模式中的两个偏振模式之间的扰动影响。

公开(公告)号：US20160202090A1

公开(公告)日：2016-07-14

申请号：US14975252

申请日：2015-12-18

Applicant: NEC Laboratories America, Inc.

Inventor： Neda Cvijetic ,  Giovanni Milione ,  Ezra Ip ,  Ting Wang

IPC: G01D5/34

CPC classification number: G01D5/34 ,  G01B11/002 ,  G01S7/4814 ,  G01S17/58 ,  G01S17/66 ,  G06F3/017 ,  G06F3/0304

Abstract: A method and system for remote sensing using optical orbital angular momentum (OAM)-based spectroscopy for lateral motion detection. The method includes applying an OAM mode on a light beam to generate an OAM light beam, the OAM light beam having an optical OAM spectrum, applying an OAM optical beam tilt on the OAM light beam to generate a tilted OAM light beam, transmitting the tilted OAM light beam on a remote object, such that the remote object interacts with the tilted OAM light beam, receiving a reflected OAM spectrum associated with the remote object, the reflected OAM spectrum having power values of OAM modes on opposite sides of an OAM launch mode, and displaying lateral motion of the remote object based on the reflected OAM spectrum by comparing the power values.

Abstract translation: 用于横向运动检测的基于光轨道角动量（OAM）的光谱的遥感方法和系统。 该方法包括在光束上施加OAM模式以产生OAM光束，OAM光束具有光学OAM光谱，在OAM光束上施加OAM光束倾斜以产生倾斜的OAM光束，透射倾斜的 OAM光束，使得远程对象与倾斜的OAM光束相互作用，接收与远程对象相关联的反射的OAM光谱，反射的OAM光谱具有在OAM发射模式的相对侧上的OAM模式的功率值 并且通过比较功率值，基于反射的OAM频谱来显示远程对象的横向运动。

公开(公告)号：US09369202B2

公开(公告)日：2016-06-14

申请号：US14244253

申请日：2014-04-03

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Ting Wang

IPC: H04B10/00 ,  H04B10/079 ,  H04B10/40 ,  H04J14/08 ,  H04Q11/00

CPC classification number: H04B10/0795 ,  H04B10/0793 ,  H04B10/40 ,  H04J14/08 ,  H04Q11/0062 ,  H04Q2011/0086

Abstract: There are provided an optical transponder having a first end and a second end, as well as an electric switch having the transponder. The transponder includes an optical interface, at the first end, having a variable rate optical transmitter and a variable rate optical receiver to respectively transmit and receive signals using at least one of different bandwidths and different bit rates. The transponder further includes an electrical interface, at the second end, having an electrical interface throughput matching an optical capacity of the optical interface. The transponder also includes a processor for controlling the optical capacity.

Abstract translation: 提供了具有第一端和第二端的光学应答器，以及具有应答器的电开关。 应答器包括光接口，其在第一端具有可变速率光发射机和可变速率光接收机，以使用不同带宽和不同比特率中的至少一个分别发射和接收信号。 应答器还包括电接口，在第二端具有与光学接口的光学容量匹配的电接口吞吐量。 应答器还包括用于控制光学容量的处理器。

公开(公告)号：US20160109223A1

公开(公告)日：2016-04-21

申请号：US14842542

申请日：2015-09-01

Applicant: NEC Laboratories America, Inc.

Inventor： Ting Wang ,  Yi Weng

IPC: G01B11/16 ,  G01K11/32

CPC classification number: G01B11/168 ,  G01K11/32 ,  G01K2011/322

Abstract: Methods and systems for sensing conditions of a fiber include splitting a light signal into two branches. A first branch is converted to have a mode different from that of the second branch. Both branches are mode multiplexed into a single fiber. An output of the fiber is mode demultiplexed into the two branches. The first branch is mode converted to its original mode. Brillouin scattering patterns of the two branches are compared to determine a temperature and strain profile of the fiber.

Abstract translation: 用于感测纤维条件的方法和系统包括将光信号分成两个分支。 第一分支被转换成具有与第二分支的模式不同的模式。 两个分支都被模式复用为单个光纤。 光纤的输出被解复用为两个分支。 第一个分支模式转换为原始模式。 比较两个分支的布里渊散射图案以确定纤维的温度和应变曲线。

公开(公告)号：US20160105376A1

公开(公告)日：2016-04-14

申请号：US14845078

申请日：2015-09-03

Applicant: NEC Laboratories America, Inc.

Inventor： Neda Cvijetic ,  Konstantinos Kanonakis ,  Ting Wang ,  Jing Wang

IPC: H04L12/911 ,  H04L12/26 ,  H04L29/08

CPC classification number: H04L47/821 ,  H04L43/08 ,  H04L67/12

Abstract: A system and method for network virtualization and resource allocation, including storing one or more received network requests in a request table, and updating at least one of a flow table, a waiting list table, or a candidate group map based on the one or more received network requests. The updating includes monitoring a transmission progress of each of one or more flows in a network of interconnected computing devices and moving completed flows from the flow table to a success list, moving requests in the waiting list table which have reached an attempt threshold from the flow table to a fail list, and compiling any residual requests in the waiting list with new requests to generate a new request table. A deterministic request allocation and/or an optimizing request allocation is performed based on the new request table.

Abstract translation: 一种用于网络虚拟化和资源分配的系统和方法，包括将一个或多个所接收的网络请求存储在请求表中，以及基于所述一个或多个基于所述流表，等待列表或候选组映射中的至少一个来更新 收到网络请求。 所述更新包括监视互连计算设备的网络中的一个或多个流中的每一个的传输进度，并将完成的流从流表移动到成功列表，从等待流程中移动已经达到尝试阈值的等待列表中的请求 表到失败列表，并用新的请求编译等待列表中的任何剩余请求以生成新的请求表。 基于新的请求表执行确定性请求分配和/或优化请求分配。

公开(公告)号：US20160025561A1

公开(公告)日：2016-01-28

申请号：US14807286

申请日：2015-07-23

Applicant: NEC Laboratories America, Inc.

Inventor： Yue Tian ,  Ting Wang

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/28

CPC classification number: G01J3/10 ,  G01J3/12 ,  G01J3/28 ,  G01J3/42

Abstract: A spectroscopy system and method includes illuminating a target with a wideband light pulse that includes an entire testing wavelength spectrum. The light pulse is transformed with a dispersive medium to introduce a frequency-based time delay to the light pulse after the light pulse has interacted with a target. The dispersed light pulse is converted to a time-domain electrical signal with a photodiode. The time-domain electrical signal is converted into a spectral profile of the target.

Abstract translation: 光谱系统和方法包括用包括整个测试波长光谱的宽带光脉冲照射目标。 用分散介质转换光脉冲，以在光脉冲与目标相互作用之后，将光脉冲引入基于频率的时间延迟。 分散的光脉冲被转换成具有光电二极管的时域电信号。 时域电信号被转换成目标的光谱分布。

公开(公告)号：US09203521B2

公开(公告)日：2015-12-01

申请号：US14457460

申请日：2014-08-12

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Ting Wang ,  Lei Xu

IPC: H04B10/06 ,  H04B10/61

CPC classification number: H04B10/613 ,  H04B10/612 ,  H04B10/614

Abstract: A method for reducing optical components at a receiver which include converting an input signal at a receiver to include an interleaving of alternate signal diversity components, the signal diversity components including phase diversity when the converting includes 0 and 90 degree interleaving and the signal diversity components include polarization diversity interleaving when the converting includes interleaved orthogonal polarizations, and combining the signal diversity components for enabling a single photo detection at the receiver to detect the alternative signal diversity components for subsequent analog-to-digital conversion.

Abstract translation: 一种用于减少接收机处的光学部件的方法，包括在接收机处转换输入信号以包括交替的信号分集分量的交织，所述信号分集分量包括当转换包括0和90度交织时的相位分集，并且信号分集分量包括 当转换包括交错的正交偏振时，偏振分集交错，以及组合信号分集分量，以使接收机处的单次光检测能够检测用于随后的模数转换的备选信号分集分量。

公开(公告)号：US09166728B2

公开(公告)日：2015-10-20

申请号：US13646392

申请日：2012-10-05

Applicant: NEC Laboratories America, Inc.

Inventor： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

IPC: H04J14/06 ,  H04J14/04 ,  H04B10/50

CPC classification number: H04J14/04 ,  H04B10/5055 ,  H04J14/06

Abstract: Systems and methods for data transport, comprising encoding one or more streams of input data using nonbinary low density parity check (NB-LDPC) encoders, corresponding to orthogonal polarization states. Receiving one or more streams of input data using a buffer coupled to the encoders, the data written to the buffer bR bits at a time, where R is the code rate. Generating one or more signals using a 2b-ary mapper implemented as a look-up table (LUT) to store coordinates of a corresponding signal constellation, the 2b-ary mapper configured to assign bits of one or more signals to a signal constellation and to associate the bits of the signals with signal constellation points, wherein the constellation is expanded to avoid bandwidth expansion due to coding, generating substantial net coding gains within a same bandwidth. Modulating nonbinary LDPC-coded data streams using in-phase/quadrature (I/Q) modulators and multiplexing the data streams using polarization beam combiner.

Abstract translation: 用于数据传输的系统和方法，包括使用对应于正交极化状态的非二进制低密度奇偶校验（NB-LDPC）编码器来编码一个或多个输入数据流。 使用耦合到编码器的缓冲器接收一个或多个输入数据流，每次写入缓冲器bR位的数据，其中R是码率。 使用实现为查找表（LUT）的2b-ary映射器来存储一个或多个信号来存储对应的信号星座的坐标，2b-ary映射器被配置为将一个或多个信号的位分配给信号星座，并且 将信号的位与信号星座点相关联，其中扩展星座以避免由于编码而导致的带宽扩展，从而在相同带宽内产生实质的网络编码增益。 使用同相/正交（I / Q）调制器调制非二进制LDPC编码数据流，并使用偏振束组合器复用数据流。

公开(公告)号：US09146359B2

公开(公告)日：2015-09-29

申请号：US13668193

申请日：2012-11-02

Applicant: NEC Laboratories America, Inc.

Inventor： Fatih Yaman ,  Eduardo Mateo ,  Lei Xu ,  Shaoliang Zhang ,  Ting Wang

IPC: G02B6/34 ,  G02B6/293

CPC classification number: G02B6/34 ,  G02B6/29319 ,  G02B6/29394

Abstract: Systems and methods are disclosed for enhancing optical communication by performing dispersion compensation in an optical fiber using a fiber Bragg grating (FBG); and providing increased degrees of freedoms (DOFs) to distinguish forward and backward propagating fields with a passive component.

Abstract translation: 公开了通过使用光纤布拉格光栅（FBG）在光纤中执行色散补偿来增强光通信的系统和方法; 并提供增加的自由度（DOF）来区分带有被动元件的前向和后向传播场。