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203 条记录 (耗时 0.023 秒)

    Multiband amplifier based on discrete SOA-Raman amplifiers
    1.
    发明申请
    Multiband amplifier based on discrete SOA-Raman amplifiers 有权
    基于离散SOA拉曼放大器的多频段放大器

    公开(公告)号：US20070183023A1

    公开(公告)日：2007-08-09

    申请号：US11701077

    申请日：2007-02-01

    申请人： Patrick Iannone ,  Kenneth Reichmann ,  Xiang Zhou

    发明人： Patrick Iannone ,  Kenneth Reichmann ,  Xiang Zhou

    IPC分类号： H01S3/00 ,  H04B10/12

    CPC分类号： H04B10/2916 ,  H01S3/2375 ,  H01S3/2383 ,  H01S3/302 ,  H01S5/50 ,  H04B2210/258 ,  H04J14/02 ,  H04J14/0221

    摘要： Several discrete hybrid amplifiers are used in parallel for amplifying an optical signal in an optical fiber system. An optical signal is first split into two or more separate signals each with a separate wavelength band. Each wavelength band is then amplified by a Raman pump utilizing a length of highly non-linear fiber as the gain medium, and by an SOA amplifier. The combination of the Raman amplifier and the SOA yields a level gain over the wavelength band. The amplified wavelength band signals are then recombined. The disclosed amplifier is especially useful in coarse wavelength division multiplexing (CWDM) systems and in local access portions of the network.

    摘要翻译： 并行使用多个分立混合放大器来放大光纤系统中的光信号。 光信号首先被分成两个或更多个分离的信号，每个具有单独的波长带。 然后，利用长度高的非线性光纤作为增益介质的拉曼泵和由SOA放大器对每个波长带进行放大。 拉曼放大器和SOA的组合在波长带上产生了一个电平增益。 然后将放大的波段信号重组。 所公开的放大器在粗波分复用（CWDM）系统和网络的本地接入部分中特别有用。

    Multi-band hybrid SOA-raman amplifier for CWDM
    3.
    发明申请
    Multi-band hybrid SOA-raman amplifier for CWDM 有权
    用于CWDM的多波段混合SOA拉曼放大器

    公开(公告)号：US20080112044A1

    公开(公告)日：2008-05-15

    申请号：US12008752

    申请日：2008-01-14

    申请人： Patrick Iannone ,  Kenneth Reichmann ,  Xiang Zhou

    发明人： Patrick Iannone ,  Kenneth Reichmann ,  Xiang Zhou

    IPC分类号： H01S3/09

    CPC分类号： H04B10/2916 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/2375 ,  H01S3/2383 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2914 ,  H04B10/294 ,  H04B2210/258 ,  H04J14/0221

    摘要： A multi-band hybrid amplifier is disclosed for use in optical fiber systems. The amplifier uses Raman laser pumps and semiconductor optical amplifiers in series to produce a relatively level gain across the frequency range of interest. Multiple Raman pumps are multiplexed before coupling into the fiber. The Raman amplified optical signal may be demultiplexed and separately amplified by the SOAs before remultiplexing. Gain profiles of the Raman pumps and the SOAs are selected to compensate for gain tilt and to alleviate the power penalty due to cross-gain modulation in the SOAs. The disclosed hybrid amplifier is especially useful in coarse wavelength division multiplexing (CWDM) systems.

    摘要翻译： 公开了一种用于光纤系统的多频带混合放大器。 放大器使用拉曼激光泵和半导体光放大器串联产生在感兴趣的频率范围内的相对电平增益。 多个拉曼泵在耦合到光纤之前被复用。 拉曼放大的光信号可以在多路复用之前由SOA解复用和分开放大。 选择拉曼泵和SOAs的增益曲线来补偿增益倾斜，并减轻由于SOA中的交叉增益调制引起的功率损失。 所公开的混合放大器在粗波分复用（CWDM）系统中特别有用。

    Multi-band hybrid SOA-raman amplifier for CWDM
    4.
    发明申请
    Multi-band hybrid SOA-raman amplifier for CWDM 有权
    用于CWDM的多波段混合SOA拉曼放大器

    公开(公告)号：US20070230960A1

    公开(公告)日：2007-10-04

    申请号：US11543650

    申请日：2006-10-05

    申请人： Patrick Iannone ,  Kenneth Reichmann ,  Xiang Zhou

    发明人： Patrick Iannone ,  Kenneth Reichmann ,  Xiang Zhou

    IPC分类号： H04J14/02

    CPC分类号： H04B10/2916 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/2375 ,  H01S3/2383 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2914 ,  H04B10/294 ,  H04B2210/258 ,  H04J14/0221

    摘要： A multi-band hybrid amplifier is disclosed for use in optical fiber systems. The amplifier uses Raman laser pumps and semiconductor optical amplifiers in series to produce a relatively level gain across the frequency range of interest. Multiple Raman pumps are multiplexed before coupling into the fiber. The Raman amplified optical signal may be demultiplexed and separately amplified by the SOAs before re-multiplexing. Gain profiles of the Raman pumps and the SOAs are selected to compensate for gain tilt and to alleviate the power penalty due to cross-gain modulation in the SOAs. The disclosed hybrid amplifier is especially useful in coarse wavelength division multiplexing (CWDM) systems.

    摘要翻译： 公开了一种用于光纤系统的多频带混合放大器。 放大器使用拉曼激光泵和半导体光放大器串联产生在感兴趣的频率范围内的相对电平增益。 多个拉曼泵在耦合到光纤之前被复用。 在重新复用之前，拉曼放大的光信号可以被解复用并由SOA分开放大。 选择拉曼泵和SOAs的增益曲线来补偿增益倾斜，并减轻由于SOA中的交叉增益调制引起的功率损失。 所公开的混合放大器在粗波分复用（CWDM）系统中特别有用。

    String light
    6.
    外观设计
    String light 有权

    公开(公告)号：USD962498S1

    公开(公告)日：2022-08-30

    申请号：US29808136

    申请日：2021-09-17

    申请人： Xiang Zhou

    设计人： Xiang Zhou

    Method of and apparatus for organizing data records in a relational database
    7.
    发明授权
    Method of and apparatus for organizing data records in a relational database 有权
    在关系数据库中组织数据记录的方法和装置

    公开(公告)号：US08972403B2

    公开(公告)日：2015-03-03

    申请号：US13365394

    申请日：2012-02-03

    申请人： You-Chin Fuh ,  Ke Wei Wei ,  Xin Ying Yang ,  Jian Wei Zhang ,  Jing Zhou ,  Xiang Zhou

    发明人： You-Chin Fuh ,  Ke Wei Wei ,  Xin Ying Yang ,  Jian Wei Zhang ,  Jing Zhou ,  Xiang Zhou

    IPC分类号： G06F17/30 ,  G06F7/00

    CPC分类号： G06F17/30312

    摘要： Embodiments of the invention relate to organizing data records in a relational database. An aspect of the invention includes creating index items for a plurality of data records. Each index item includes a counter and the creating results in a plurality of counters. The numerical values of counters in corresponding index items are updated for data records in the plurality of data records that are subjected to random access. The plurality of data records are reorganized based upon the numerical values of the plurality of counters.

    摘要翻译： 本发明的实施例涉及在关系数据库中组织数据记录。 本发明的一个方面包括创建多个数据记录的索引项。 每个索引项目包括计数器，并且在多个计数器中创建结果。 针对经过随机存取的多个数据记录中的数据记录，对相应索引项中的计数器的数值进行更新。 基于多个计数器的数值重新组织多个数据记录。

    Method for improving the performance of digital coherent optical receiver using single ended photo-detection
    8.
    发明授权
    Method for improving the performance of digital coherent optical receiver using single ended photo-detection 有权
    使用单端光检测改善数字相干光接收机性能的方法

    公开(公告)号：US08655194B2

    公开(公告)日：2014-02-18

    申请号：US13566229

    申请日：2012-08-03

    申请人： Xiang Zhou

    发明人： Xiang Zhou

    IPC分类号： H04B10/06 ,  H04B10/12

    CPC分类号： H04B10/6971 ,  H04B10/2513 ,  H04B10/25133 ,  H04B10/61 ,  H04B10/611 ,  H04B10/614 ,  H04B10/6161 ,  H04B10/6162 ,  H04B2210/252

    摘要： A method and system for mitigating distortion in coherent single-ended photo-detection is disclosed. The methodology comprises: receiving an optical signal carried on an optical transmission medium and coherently detecting the received optical signal to produce a digitized signal; estimating a time-dependent random variable introducing distortion to the coherently detected signal; and subtracting the distortion from digitized signal to produce a distortion mitigated output signal.

    摘要翻译： 公开了一种减轻相干单端光检测失真的方法和系统。 该方法包括：接收在光传输介质上承载的光信号，并相干地检测接收到的光信号以产生数字化信号; 估计对相干检测信号引入失真的时间依赖随机变量; 并从数字化信号中减去失真以产生失真缓解输出信号。

    ASYNCHRONOUS PROGRAMMING EXECUTION
    10.
    发明申请
    ASYNCHRONOUS PROGRAMMING EXECUTION 有权
    不同寻常的编程执行

    公开(公告)号：US20120210332A1

    公开(公告)日：2012-08-16

    申请号：US13028552

    申请日：2011-02-16

    申请人： Xiaoxuan Zhao ,  Sridhar Srinivasan ,  Xiang Zhou ,  Fengbin Jiang

    发明人： Xiaoxuan Zhao ,  Sridhar Srinivasan ,  Xiang Zhou ,  Fengbin Jiang

    IPC分类号： G06F9/46

    CPC分类号： G06F9/4843 ,  G06F8/4443 ,  G06F9/45504 ,  G06F9/45525

    摘要： One or more techniques and/or systems are disclosed for improving asynchronous programming execution at runtime. Asynchronous programming code can comprise more than one level of hierarchy, such as in an execution plan. Respective aggregation operations in a portion of the asynchronous programming code are unrolled, to create a single level iterative execution, by combining elements of the multi-level iterative execution of the asynchronous programming code. In this way, the aggregation operations are concatenated to local logic code for the aggregation operations. Thread context switching in the unrolled portion of asynchronous programming code is performed merely at an asynchronous operation, thereby mitigating unnecessary switches. Exceptions thrown during programming code can be propagated up to a top of a virtual callstack for the execution.

    摘要翻译： 公开了一种或多种技术和/或系统，用于在运行时改善异步编程执行。 异步编程代码可以包括多个层次结构，例如在执行计划中。 通过组合异步编程代码的多级迭代执行的元素来展开异步编程代码的一部分中的各个聚合操作，以创建单级迭代执行。 以这种方式，聚合操作被连接到用于聚合操作的本地逻辑代码。 异步编程代码的展开部分中的线程上下文切换仅在异步操作下执行，从而减轻不必要的开关。 在编程代码中抛出的异常可以传播到虚拟调用堆栈的顶部，以执行。