公开(公告)号：US08184731B2

公开(公告)日：2012-05-22

申请号：US12372378

申请日：2009-02-17

Applicant: Dayou Qian ,  Jianjun Yu ,  Ting Wang

Inventor： Dayou Qian ,  Jianjun Yu ,  Ting Wang

IPC: H04L5/12

CPC classification number: H04L27/233

Abstract: A system and method to adjust the symbol constellation used to de-map a signal in an optical coherent communications system. A feedback de-mapper adjustment module is configured to compare average Error Vector Magnitude and Bit Error Ratio to a pre-defined table to determine when a constellation de-mapper mismatch occurs. The feedback de-mapper adjustment module then rotates the de-mapper constellation in order to compensate for phase drift.

Abstract translation: 一种用于调整用于在光学相干通信系统中去映射信号的符号星座的系统和方法。 反馈解映射器调整模块被配置为将平均误差矢量幅度和误码率与预定义的表进行比较，以确定何时发生星座解映射器失配。 反馈解映射器调整模块随后旋转去映射器星座以便补偿相位漂移。

公开(公告)号：US08000604B2

公开(公告)日：2011-08-16

申请号：US12039981

申请日：2008-02-29

Applicant: Dayou Qian ,  Junqiang Hu ,  Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic ,  Toshihiko Kusano

Inventor： Dayou Qian ,  Junqiang Hu ,  Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic ,  Toshihiko Kusano

IPC: H04J14/02

CPC classification number: H04L5/023 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007

Abstract: A passive optical network (PON) device, system and method include an optical line terminal (OLT) receiver configured to receive multiple signals at different wavelengths simultaneously and enable multiple transmitters to operate at the same time during one upstream time slot. The optical line terminal employs Orthogonal Frequency Division Multiple Access (OFDMA) to transparently support a plurality of applications and enable dynamic bandwidth allocation among these applications where the bandwidth is allocated in two dimensional frequency and time space.

Abstract translation: 无源光网络（PON）设备，系统和方法包括配置为同时接收不同波长的多个信号的光线路终端（OLT）接收机，并使得多个发射机能够在一个上行时隙同时进行操作。 光线路终端使用正交频分多址（OFDMA）来透明地支持多个应用，并且在带宽被分配在二维频率和时间空间中的这些应用中实现动态带宽分配。

公开(公告)号：US20110020003A1

公开(公告)日：2011-01-27

申请号：US12789943

申请日：2010-05-28

Applicant: Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

Inventor： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/02 ,  H04B10/04

CPC classification number: H04B10/548 ,  H04J14/06

Abstract: A method for generating a 400 Gb/s single channel optical signal from multiple modulated subchannels includes carving respective modulated subchannels into return-to-zero RZ modulated subchannels having non-overlapping peaks with intensity modulators having a duty cycle less than 50%, and combining the subchannels into a single channel signal aggregating the bit rate of each of the subchannels. The subchannels are combined with a flat top optical component for increased subsequent receiver sensitivity.

Abstract translation: 用于从多个调制子信道生成400Gb / s单信道光信号的方法包括将具有非重叠峰值的相应调制子信道刻蚀成具有占空比小于50％的强度调制器的归零至零RZ调制子信道，以及组合 将子信道转换成单个信道信号，聚合每个子信道的比特率。 子通道与平顶光学部件组合，以增加后续的接收灵敏度。

公开(公告)号：US20100142952A1

公开(公告)日：2010-06-10

申请号：US12607166

申请日：2009-10-28

Applicant: Dayou QIAN ,  Ting WANG

Inventor： Dayou QIAN ,  Ting WANG

IPC: H04J14/06

CPC classification number: H04J14/002 ,  H04B10/2513 ,  H04B10/60 ,  H04B10/6161 ,  H04B10/6162 ,  H04J14/06

Abstract: A method for the polarization independent frequency domain equalization (FDE) on polarization multiplexing (POLMUX) coherent systems employing an adaptive crossing FDE which advantageously produces CD compensation, PMD compensation and PolDeMux within one functional block of a digital signal processor (DSP).

Abstract translation: 一种在偏振复用（POLMUX）相干系统上使用自适应交叉FDE的偏振无关频域均衡（FDE）的方法，其有利地在数字信号处理器（DSP）的一个功能块内产生CD补偿，PMD补偿和PolDeMux。

公开(公告)号：US20100028002A1

公开(公告)日：2010-02-04

申请号：US12184781

申请日：2008-08-01

Applicant: Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

Inventor： Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/02

CPC classification number: H04Q11/0067 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007 ,  H04L5/0037 ,  H04Q2011/0086

Abstract: Implementations of the present principles include methods, systems and apparatuses for transmitting data through a sub-carrier multiplexing and orthogonal frequency-division multiple access passive optical network. In accordance with aspects of the present principles, a plurality of optical network units are assigned electrical carrier frequency bandwidths that are narrower than a system capacity bandwidth. Modulation of optical waves transmitted between an optical line terminal and each optical network unit is conducted on different orthogonal sub-carrier frequencies within the assigned bandwidths such that sampling of said orthogonal sub-carrier frequencies is limited to the assigned electrical carrier frequency bandwidths. The waves are thereafter received and demodulated for the extraction of data.

Abstract translation: 本原理的实现包括通过副载波复用和正交频分多址无源光网络传输数据的方法，系统和装置。 根据本原理的方面，多个光网络单元分配比系统容量带宽窄的电载波频率带宽。 在光线路终端和每个光网络单元之间传输的光波的调制在所分配的带宽内的不同正交子载波频率上进行，使得所述正交子载波频率的采样被限制为所分配的电载波频率带宽。 之后接收和解调波以提取数据。

公开(公告)号：US08781326B2

公开(公告)日：2014-07-15

申请号：US13437139

申请日：2012-04-02

Applicant: Junqiang Hu ,  Dayou Qian ,  Ting Wang

Inventor： Junqiang Hu ,  Dayou Qian ,  Ting Wang

IPC: H04B14/00 ,  H04B10/00 ,  H04B10/548 ,  H04B10/60

CPC classification number: H04B10/548 ,  H04B10/60 ,  H04L27/2697

Abstract: An energy efficient OFDM transceiver includes a transmitter using a decision processor to control first internal elements that can be operated in parallel and can be selectively powered off or hibernated, and a receiver using a processing decision element to control second internal elements that can be operated in parallel and can be selectively powered off or hibernated, wherein control of the first and second internal elements enables tracking status of network traffic, adjustment of OFDM bandwidth based on a traffic decision and selectively powering off or hibernating parallel ones of the first and second internal elements.

Abstract translation: 节能OFDM收发器包括使用决策处理器来控制可以并行操作并且可以选择性地关闭或休眠的第一内部元件的发射机，以及使用处理决策元件来控制可以在 并联并且可以选择性地关闭或休眠，其中第一和第二内部元件的控制使得能够跟踪网络业务的状态，基于业务决策来调整OFDM带宽，并且选择性地关闭或休眠第一和第二内部元件中的并行 。

公开(公告)号：US08725006B2

公开(公告)日：2014-05-13

申请号：US13270210

申请日：2011-10-10

Applicant: Yue-Kai Huang ,  Ezra Ip ,  Dayou Qian ,  Philip Ji ,  Yoshiaki Aono ,  Tsutomu Tajima

Inventor： Yue-Kai Huang ,  Ezra Ip ,  Dayou Qian ,  Philip Ji ,  Yoshiaki Aono ,  Tsutomu Tajima

IPC: H04B10/61

CPC classification number: H04B10/616 ,  H04J14/021 ,  H04J14/06

Abstract: Systems and methods are disclosed for a filter-less coherent receiving system with a filter-less coherent receiver frontend; a signal-signal beat-noise detector coupled to the filter-less coherent receiver frontend; and a real-time processor coupled to the filter-less coherent receiver frontend and the signal-signal beat-noise detector to reject signal-signal interference.

Abstract translation: 公开了一种具有无滤波器相干接收机前端的无滤波相干接收系统的系统和方法; 耦合到无滤波器相干接收器前端的信号信号差拍检测器; 以及耦合到无滤波器相干接收器前端的实时处理器和信号信号差分噪声检测器以抑制信号信号干扰。

公开(公告)号：US08611743B2

公开(公告)日：2013-12-17

申请号：US13311686

申请日：2011-12-06

Applicant: Philip N. Ji ,  Dayou Qian ,  Ankitkumar N. Patel ,  Ting Wang ,  Yoshiaki Aono

Inventor： Philip N. Ji ,  Dayou Qian ,  Ankitkumar N. Patel ,  Ting Wang ,  Yoshiaki Aono

IPC: H04J14/00 ,  H04J14/02

CPC classification number: H04J14/0217 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0256 ,  H04J14/0298 ,  H04L27/2697

Abstract: Methods and systems for optical signal grooming that include providing one or more input signals, each having one or more modulated subcarriers, to a grooming processor; and grooming the input signals at a subcarrier level with the grooming processor to produce one or more output signals by arranging the modulated subcarriers in the output signals according to a grooming operation such that the modulated subcarriers are not demodulated or decoded prior to grooming.

Abstract translation: 用于光学信号整理的方法和系统，包括向梳理处理器提供每个具有一个或多个调制子载波的一个或多个输入信号; 以及通过梳理处理器在子载波电平下整理输入信号，以通过根据梳理操作将调制的子载波排列在输出信号中，以便在梳理之前不对调制的子载波进行解调或解码来产生一个或多个输出信号。

公开(公告)号：US08488652B2

公开(公告)日：2013-07-16

申请号：US12911416

申请日：2010-10-25

Applicant: Junquiang Hu ,  Huy Dung Han ,  Dayou Qian

Inventor： Junquiang Hu ,  Huy Dung Han ,  Dayou Qian

IPC: H04B1/00 ,  H03F3/45

CPC classification number: H04L25/0305 ,  H04L25/0252 ,  H04L2025/03617

Abstract: A digital receiver system to recover signals from inter-symbol-interference includes a finite impulse response (FIR) filter using convolution to recover signals; and a channel estimator coupled to the FIR filter to estimate FIR coefficients, wherein the channel estimator uses a second order expectation and a fourth order expectation from a convolution to calculate error function.

Abstract translation: 用于从符号间干扰恢复信号的数字接收机系统包括使用卷积恢复信号的有限脉冲响应（FIR）滤波器; 以及耦合到FIR滤波器以估计FIR系数的信道估计器，其中信道估计器使用来自卷积的二阶期望和四阶期望来计算误差函数。

公开(公告)号：US08374514B2

公开(公告)日：2013-02-12

申请号：US12760813

申请日：2010-04-15

Applicant: Yue-Kai Huang ,  Ting Wang ,  Dayou Qian ,  Robert Saperstein

Inventor： Yue-Kai Huang ,  Ting Wang ,  Dayou Qian ,  Robert Saperstein

IPC: H04B10/00 ,  H04B10/06

CPC classification number: H04L5/04 ,  H04B10/548 ,  H04B10/60 ,  H04J14/06 ,  H04L27/2697

Abstract: A method includes modulating lightwaves to provide first and second OFDM signal sidebands at a first polarization direction and first and second OFDM signal sidebands at a second polarization direction, and combining sidebands that are oppositely positioned and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.

Abstract translation: 一种方法包括调制光波以在第一偏振方向提供第一和第二OFDM信号边带，以及在第二极化方向上提供第一和第二OFDM信号边带，并且组合在每一个处与第一和第二OFDM信号边带相对地定位和连接的边带 偏振方向，以提供偏振复用OFDM信号。