利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.02 秒)

    Dynamic Signal Equalization in Optical Transmission Systems
    1.
    发明申请
    Dynamic Signal Equalization in Optical Transmission Systems 审中-公开
    光传输系统中的动态信号均衡

    公开(公告)号：US20090245810A1

    公开(公告)日：2009-10-01

    申请号：US12054763

    申请日：2008-03-25

    申请人： Yue-Kai Huang ,  Ting Wang ,  Lei Xu

    发明人： Yue-Kai Huang ,  Ting Wang ,  Lei Xu

    IPC分类号： H04B10/04 ,  H04B10/12

    CPC分类号： H04B10/25137 ,  H04B10/2575

    摘要： In an optical transmission system, data is transmitted via an optical beam modulated with an arbitrary waveform. The optical beam is transmitted through at least one optical element. Transmission through at least one optical element degrades the signal quality of the initial optical beam. The signal characteristics of at least one optical beam at the output of least one optical element are used as feedback to shape the arbitrary waveform to improve signal characteristics. An arbitrary waveform may be used to compensate signal degradation caused by a multiplexer/demultiplexer in a wavelength division multiplex system.

    摘要翻译： 在光传输系统中，通过任意波形调制的光束发送数据。 光束通过至少一个光学元件透射。 通过至少一个光学元件的透射降低了初始光束的信号质量。 在至少一个光学元件的输出处的至少一个光束的信号特性被用作反馈以形成任意波形以改善信号特性。 可以使用任意波形来补偿由波分多路复用系统中的多路复用器/解复用器引起的信号劣化。

    Polmux-OFDM-DD Transmitter and Receiver for Reduced Complexity and Overhead in Optical Access/Metro Transmission
    4.
    发明申请
    Polmux-OFDM-DD Transmitter and Receiver for Reduced Complexity and Overhead in Optical Access/Metro Transmission 有权
    Polmux-OFDM-DD发射机和接收机，用于降低光接入/城域传输中的复杂性和开销

    公开(公告)号：US20120263467A1

    公开(公告)日：2012-10-18

    申请号：US13446306

    申请日：2012-04-13

    申请人： Neda Cvijetic ,  Yue-Kai Huang ,  Narayan Prasad ,  Ting Wang

    发明人： Neda Cvijetic ,  Yue-Kai Huang ,  Narayan Prasad ,  Ting Wang

    IPC分类号： H04J14/06

    CPC分类号： H04J14/06 ,  H04B10/532 ,  H04B10/548 ,  H04J14/02 ,  H04L5/0023 ,  H04L25/0204 ,  H04L27/2096 ,  H04L27/223 ,  H04L27/2697 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： An optical communication system includes a polarization multiplexed orthogonal frequency-division multiplexing POLMUX-OFDM transmitter for generating a POLMUX-OFDM double sideband signal, an optical processing path for processing the double sideband signal from the transmitter; an analog-to-digital convert ADC-OFDM receiver coupled to the optical processing path for receiving the double sideband signal processed by the optical path; and a block-diagonal multiple-input multiple-output MIMO equalizer responsive to the receiver for enabling correct operation for a completely random incoming signal polarization state without adaptive polarization control at said receiver, which enables complexity.

    摘要翻译： 光通信系统包括用于产生POLMUX-OFDM双边带信号的偏振复用正交频分复用POLMUX-OFDM发射机，用于处理来自发射机的双边带信号的光处理路径; 耦合到光学处理路径的用于接收由光路处理的双边带信号的模数转换ADC-OFDM接收器; 以及响应于接收机的块对角多输入多输出MIMO均衡器，用于使能在所述接收机处没有自适应偏振控制的完全随机输入信号偏振状态的正确操作，这使得复杂性。

    Variable Rate Optical Transmitter Based on All-Optical OFDM Super-Channel Technology
    6.
    发明申请
    Variable Rate Optical Transmitter Based on All-Optical OFDM Super-Channel Technology 有权
    基于全光OFDM超频技术的可变速率光发射机

    公开(公告)号：US20130058648A1

    公开(公告)日：2013-03-07

    申请号：US13588425

    申请日：2012-08-17

    申请人： Philip Nan Ji ,  Yue-Kai Huang ,  Ting Wang

    发明人： Philip Nan Ji ,  Yue-Kai Huang ,  Ting Wang

    IPC分类号： H04J14/00

    CPC分类号： H04B10/548 ,  H04J14/0221 ,  H04J14/0298 ,  H04L27/2096 ,  H04L27/2697

    摘要： The present invention is directed to a method including determining an appropriate power level for a phase modulator for an optimum number of subcarriers; and applying the determined appropriate power level via a controller to produce the optimum number of subcarriers, wherein the optimum number of subcarriers enables an optical-orthogonal frequency division multiplex O-OFDM based variable rate transmitter with automatic control by a controller to produce an optimum setting based on a required rate.

    摘要翻译： 本发明涉及一种方法，包括为最佳数量的子载波确定相位调制器的适当功率电平; 以及经由控制器应用所确定的适当的功率电平以产生最佳数量的子载波，其中最佳数量的子载波使得能够由控制器自动控制的光正交频分复用O-OFDM可变速率发射机产生最佳设置 基于所需的费率。

    Parallel Optical Polarization Tracking
    7.
    发明申请
    Parallel Optical Polarization Tracking 有权
    并行光学偏振跟踪

    公开(公告)号：US20100054737A1

    公开(公告)日：2010-03-04

    申请号：US12203301

    申请日：2008-09-03

    申请人： Robert Saperstein ,  Ting Wang ,  Yue-Kai Huang

    发明人： Robert Saperstein ,  Ting Wang ,  Yue-Kai Huang

    IPC分类号： H04J14/06

    CPC分类号： H04J14/06

    摘要： A system to communicate optical data signals in parallel includes an optical splitter to split the data signals into two polarization multiplexed (PM) signals; and two reception channels coupled to the optical splitter, where each reception channel tracks and isolates a PM signal independently.

    摘要翻译： 并行地传送光数据信号的系统包括将数据信号分割为两个偏振复用（PM）信号的光分路器; 以及耦合到光分路器的两个接收信道，其中每个接收信道独立地跟踪和隔离PM信号。

    PHOTONIC FILTER BANK FOR HIGH-SPEED ANALOG-TO-DIGITAL CONVERSION
    8.
    发明申请
    PHOTONIC FILTER BANK FOR HIGH-SPEED ANALOG-TO-DIGITAL CONVERSION 有权
    用于高速模拟数字转换的光电滤波器

    公开(公告)号：US20090251345A1

    公开(公告)日：2009-10-08

    申请号：US12200219

    申请日：2008-08-28

    申请人： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

    发明人： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

    IPC分类号： H03M1/00

    CPC分类号： G02F7/00

    摘要： An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.

    摘要翻译： 模数转换器（ADC）结构和方法包括具有至少两个滤波器的光子滤波器组。 所述至少两个滤波器被配置为以目标速率从输入信号创建相应的频谱支路，并且所述至少两个滤波器被配置为在各个支路之间呈现正交性质。 光/电（O / E）转换器耦合到相应频谱支路中的至少两个滤波器中的每一个，以将光输入转换成电输出。 模数转换器（ADC）被耦合到相应频谱支路中的每个O / E转换器，以目标速率的一小部分对电输出进行采样，并将采样的模拟电输出转换为数字信号。 合成滤波器耦合到相应频谱支路中的每个ADC，以目标速率数字地重构输入信号。

    Photonic filter bank for high-speed analog-to-digital conversion
    9.
    发明授权
    Photonic filter bank for high-speed analog-to-digital conversion 有权
    用于高速模数转换的光子滤波器组

    公开(公告)号：US07973688B2

    公开(公告)日：2011-07-05

    申请号：US12200219

    申请日：2008-08-28

    申请人： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

    发明人： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

    IPC分类号： H03M1/00

    CPC分类号： G02F7/00

    摘要： An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.

    摘要翻译： 模数转换器（ADC）结构和方法包括具有至少两个滤波器的光子滤波器组。 所述至少两个滤波器被配置为以目标速率从输入信号创建相应的频谱支路，并且所述至少两个滤波器被配置为在各个支路之间呈现正交性质。 光/电（O / E）转换器耦合到相应频谱支路中的至少两个滤波器中的每一个，以将光输入转换成电输出。 模数转换器（ADC）被耦合到相应频谱支路中的每个O / E转换器，以一小部分目标速率对电输出进行采样，并将采样的模拟电输出转换为数字信号。 合成滤波器耦合到相应频谱支路中的每个ADC，以目标速率数字地重构输入信号。

    VIRTUAL I/Q MULTIPLEXING IN OPTICAL CODE DIVISION FOR SECURE LOCAL AREA OFDM
    10.
    发明申请
    VIRTUAL I/Q MULTIPLEXING IN OPTICAL CODE DIVISION FOR SECURE LOCAL AREA OFDM 审中-公开
    用于安全的本地区域的光学代码段的虚拟I / Q多路复用OFDM

    公开(公告)号：US20090092392A1

    公开(公告)日：2009-04-09

    申请号：US12181656

    申请日：2008-07-29

    申请人： Yue-Kai Huang ,  Ting Wang ,  Junqiang Hu

    发明人： Yue-Kai Huang ,  Ting Wang ,  Junqiang Hu

    IPC分类号： H04J14/00

    CPC分类号： H04J14/005 ,  H04J14/02 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2626 ,  H04L27/2647

    摘要： A system and method for virtual I/Q multiplexing in optical code division for secure local area OFDM includes encoding a wide spectrum signal, which includes a plurality of spectral bins, to provide a complementary spectral coding over at least two channels. The complementary spectral codings are intensity modulated with opposite polarity for each channel. An M-ary Orthogonal Frequency Division Multiplexing (OFDM) signal is modulated using the complementary spectral codings of opposite polarity with separate complementary spectral encoded (CSE) optical codes to provide a virtual in-phase (I) and quadrature (Q) (I/Q) multiplexing for the OFDM signal.

    摘要翻译： 用于安全局域OFDM的光码分区中的虚拟I / Q复用的系统和方法包括对包含多个频谱区的宽频谱信号进行编码，以在至少两个信道上提供互补的频谱编码。 对于每个通道，互补的频谱编码是以相反极性强度调制的。 使用具有相反极性的互补频谱编码，使用单独的互补频谱编码（CSE）光码来调制M正交频分复用（OFDM）信号，以提供虚拟同相（I）和正交（Q）（I / Q）复用为OFDM信号。