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58 条记录 (耗时 0.042 秒)

    High loss loop back for long repeater span
    43.
    发明授权
    High loss loop back for long repeater span 有权
    高损耗环回，长时间中继器跨度

    公开(公告)号：US08009983B2

    公开(公告)日：2011-08-30

    申请号：US12146811

    申请日：2008-06-26

    申请人： Hongbin Zhang

    发明人： Hongbin Zhang

    IPC分类号： H04B10/08 ,  H04B17/00

    CPC分类号： H04B10/071 ,  H04B10/035

    摘要： Various high loss loop back (HLLB) repeater architectures are disclosed that enable selectively monitoring (e.g., measuring, analyzing, etc) of Rayleigh signals from both inbound and outbound directions of an optical communication system. In one such embodiment, first and second optical test signal frequencies (or ranges) are used, in conjunction with selective filtering, for monitoring the outbound and inbound paths, respectively. The repeater architectures allow optical time domain reflectometry (OTDR) monitoring techniques to be employed, for example, in particularly long repeater spans, such as those in excess of 90 km in length.

    摘要翻译： 公开了各种高损耗环回（HLLB）中继器架构，其能够从光通信系统的入站和出站方向选择性地监视（例如，测量，分析等等）瑞利信号。 在一个这样的实施例中，第一和第二光学测试信号频率（或范围）结合选择性过滤被分别用于监视出站和入站路径。 中继器架构允许采用光时域反射测量（OTDR）监测技术，例如，在特别长的中继器跨度（例如长度超过90km的那些）中。

    Citrus tristeza virus resistance genes and methods of use
    44.
    发明申请
    Citrus tristeza virus resistance genes and methods of use 审中-公开
    柑橘三病毒抗性基因及使用方法

    公开(公告)号：US20070074307A1

    公开(公告)日：2007-03-29

    申请号：US11512691

    申请日：2006-08-29

    申请人： Frederick Gmitter ,  Zhanao Deng ,  Hongbin Zhang

    发明人： Frederick Gmitter ,  Zhanao Deng ,  Hongbin Zhang

    IPC分类号： A01H1/00 ,  C07H21/04 ,  C12N15/82 ,  C12N5/04

    CPC分类号： C07K14/415 ,  C12N15/8283

    摘要： Nucleic acid molecules Rcan5 and Rcan6 derived from Poncirus confer disease resistance to citrus tristeza virus (CTV) infection in a non-Poncirus plant. Methods of conferring disease resistance to CTV infection, as well as citrus plants having a nucleic acid molecule that induces disease resistance to CTV infection are described.

    摘要翻译： 来源于Pon虫的核酸分子Rcan5和Rcan6在非Pon科植物中赋予对柑橘属三病毒（CTV）感染的抗病性。 描述了赋予对CTV感染的抗病性的方法，以及具有诱导对CTV感染的抗病性的核酸分子的柑橘类植物。

    Correlation-control QPSK transmitter
    48.
    发明授权
    Correlation-control QPSK transmitter 失效
    相关控制QPSK发射机

    公开(公告)号：US08483574B2

    公开(公告)日：2013-07-09

    申请号：US12905717

    申请日：2010-10-15

    申请人： Hongbin Zhang ,  Yu Sun ,  Carl Davidson ,  Yi Cai

    发明人： Hongbin Zhang ,  Yu Sun ,  Carl Davidson ,  Yi Cai

    IPC分类号： H04B10/00 ,  H04B10/04 ,  H04B10/06

    CPC分类号： H04B10/5561 ,  H04J14/06 ,  H04L5/04 ,  H04L25/03178 ,  H04L27/2096

    摘要： An optical transmitter utilizing a multi-level data modulator to produce a PDM-QPSK signal, a one-bit delay interferometer configured to correlate the multi-level data modulated signal and an optical filter configured to combine the correlated multi-level data modulated signal with one or more neighboring signals prior to transmitting over one of a plurality of optical channels. The PDM-QPSK correlated signal is configured to reduce the signal spectrum thereby increasing spectral efficiency of the transmitted signal.

    摘要翻译： 一种利用多电平数据调制器产生PDM-QPSK信号的光发射机，配置成将多电平数据调制信号相关联的一位延迟干涉仪和配置成将相关多电平数据调制信号与 一个或多个相邻信号在通过多个光学信道之一发送之前。 PDM-QPSK相关信号被配置为减少信号频谱，从而提高发射信号的频谱效率。

    Vestigial phase shift keying modulation and systems and methods incorporating same
    49.
    发明授权
    Vestigial phase shift keying modulation and systems and methods incorporating same 失效
    残留相移键控调制及其结合的系统和方法

    公开(公告)号：US08437644B2

    公开(公告)日：2013-05-07

    申请号：US13033084

    申请日：2011-02-23

    申请人： Hongbin Zhang ,  Carl R. Davidson ,  Jin-Xing Cai ,  Yi Cai

    发明人： Hongbin Zhang ,  Carl R. Davidson ,  Jin-Xing Cai ,  Yi Cai

    IPC分类号： H04B10/04

    CPC分类号： H04J14/02 ,  H04B10/5561

    摘要： In general, optical communication systems and methods may implement a vestigial phase shift keying (PSK) modulation format to enable relatively high transmission rates with closer channel spacing and improved signal detection in a WDM optical communication system. A PSK modulated signal may be correlated with a phase shift, for example, using a delay line interferometer (DLI), to generate a vestigial PSK signal, which may be pre-filtered, combined, and transmitted in the WDM system. The correlation with a phase shift compresses and shifts the signal spectrum such that intersymbol interference (ISI) length may be reduced with minimal increase in the bit error rate (BER) when the vestigial PSK signal is detected.

    摘要翻译： 通常，光通信系统和方法可以实现残留相移键控（PSK）调制格式，以在WDM光通信系统中实现具有更近的信道间隔和改进的信号检测的相对较高的传输速率。 PSK调制信号可以与例如使用延迟线干涉仪（DLI）的相移相关，以产生可在WDM系统中预滤波，组合和发送的残留PSK信号。 与相移的相关性对信号频谱进行压缩和移位，使得当检测到残留PSK信号时，码间干扰（ISI）长度可以随着误码率（BER）的最小增加而减小。

    VESTIGIAL PHASE SHIFT KEYING MODULATION AND SYSTEMS AND METHODS INCORPORATING SAME
    50.
    发明申请
    VESTIGIAL PHASE SHIFT KEYING MODULATION AND SYSTEMS AND METHODS INCORPORATING SAME 失效
    相关相位调整关键调节与系统及其并入的方法

    公开(公告)号：US20120213521A1

    公开(公告)日：2012-08-23

    申请号：US13033084

    申请日：2011-02-23

    申请人： Hongbin Zhang ,  Carl R. Davidson ,  Jin-Xing Cai ,  Yi Cai

    发明人： Hongbin Zhang ,  Carl R. Davidson ,  Jin-Xing Cai ,  Yi Cai

    IPC分类号： H04J14/02 ,  H04B10/04

    CPC分类号： H04J14/02 ,  H04B10/5561

    摘要： In general, optical communication systems and methods may implement a vestigial phase shift keying (PSK) modulation format to enable relatively high transmission rates with closer channel spacing and improved signal detection in a WDM optical communication system. A PSK modulated signal may be correlated with a phase shift, for example, using a delay line interferometer (DLI), to generate a vestigial PSK signal, which may be pre-filtered, combined, and transmitted in the WDM system. The correlation with a phase shift compresses and shifts the signal spectrum such that intersymbol interference (ISI) length may be reduced with minimal increase in the bit error rate (BER) when the vestigial PSK signal is detected.

    摘要翻译： 通常，光通信系统和方法可以实现残留相移键控（PSK）调制格式，以在WDM光通信系统中实现具有更近的信道间隔和改进的信号检测的相对较高的传输速率。 PSK调制信号可以与例如使用延迟线干涉仪（DLI）的相移相关，以产生可在WDM系统中预滤波，组合和发送的残留PSK信号。 与相移的相关性对信号频谱进行压缩和移位，使得当检测到残留PSK信号时，码间干扰（ISI）长度可以随着误码率（BER）的最小增加而减小。