公开(公告)号：US08380083B2

公开(公告)日：2013-02-19

申请号：US12546250

申请日：2009-08-24

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04B10/00

CPC classification number: H04B10/90 ,  H04B10/2575

Abstract: An optical system for providing all-optical up-conversion of a baseband signal including an all-optical up-converter responsive to baseband signals to provide corresponding dual sideband signals about a suppressed optical carrier, said dual sideband signals each having the same polarization direction, being phase locked, having the same optical power and having a fixed frequency spacing; and an optical filter for filtering the carrier signals and providing wavelength division multiplexed signals without optical carriers. In a preferred embodiment, the all-optical up-converter includes an intensity modulator for generating two pump lightwaves that are carrier suppressed in response to the intensity modulator receiving a laser light source and being driven by an RF signal, wherein the intensity modulator is DC biased at a null point, an optical combiner for combining the baseband signal and the two pump lightwaves, a nonlinear medium for four wave mixing the baseband signal and two pump lightwaves to generate the baseband signal and corresponding dual sideband signals, and an optical interleaver for removing the baseband signal and two pump lightwaves to provide said sideband signals about the suppressed optical carrier.

Abstract translation: 一种光学系统，用于响应于基带信号提供包括全光上变频器的基带信号的全光上变换，以提供关于被抑制的光载波的对应的双边带信号，所述双边带信号各自具有相同的偏振方向， 具有相同的光功率并具有固定的频率间隔; 以及用于对载波信号进行滤波并提供无光载波的波分复用信号的滤光器。 在一个优选实施例中，全光上变换器包括一个强度调制器，用于产生两个泵浦光波，该两个波浪波响应于接收激光光源并由RF信号驱动的强度调制器被抑制，其中强度调制器是DC 偏置在零点，用于组合基带信号和两个泵浦光波的光组合器，用于四波混频基带信号和两个泵浦光波的非线性介质，以产生基带信号和相应的双边带信号，以及用于 去除基带信号和两个泵浦光波，以提供关于被抑制的光载波的所述边带信号。

公开(公告)号：US20120176886A1

公开(公告)日：2012-07-12

申请号：US13339476

申请日：2011-12-29

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04J11/00

CPC classification number: H04L27/2614

Abstract: A combined Hadamard and companding transform technique is incorporated into orthogonal frequency division multiplexed signals to reduce the peak-to-average ratio of signals. A Hadamard transform is applied to the signals to generate a first transformed signal of subsymbols. An Inverse Fast Fourier Transform is performed on the subsymbols to generate a second transformed signal of the subsymbols. The second transformed signal is then companded, making them ready for transmission as optical signals.

Abstract translation: 合并的Hadamard和压扩变换技术被并入到正交频分复用信号中，以降低信号的峰均比。 将Hadamard变换应用于信号以产生子符号的第一变换信号。 对子符号进行逆快速傅立叶变换，以生成子符号的第二个变换信号。 然后将第二变换信号压缩，使其准备好作为光信号传输。

公开(公告)号：US08200086B2

公开(公告)日：2012-06-12

申请号：US12044417

申请日：2008-03-07

Applicant: Yuanqiu Luo ,  Si Yin ,  Jianjun Yu ,  Lei Zong

Inventor： Yuanqiu Luo ,  Si Yin ,  Jianjun Yu ,  Lei Zong

IPC: H04J14/00

CPC classification number: H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0298 ,  H04L67/1097 ,  H04Q11/0067 ,  H04Q2011/0069

Abstract: A storage area network extension, network and method include a storage terminal coupled to a remote node. The remote node is connected to a passive optical network (PON) for transferring data signals in the PON and storage signals to/from the storage terminal by employing subcarrier channels in the PON to enable concurrent bidirectional transfer of the data and the storage signals. A storage area network is coupled to the storage terminal and configured to store and retrieve the storage signals for transfer over the PON.

Abstract translation: 存储区域网络扩展，网络和方法包括耦合到远程节点的存储终端。 远程节点连接到无源光网络（PON），用于通过在PON中采用子载波信道来传送PON中的数据信号和存储信号到存储终端，以实现数据和存储信号的并发双向传输。 存储区域网络耦合到存储终端并且被配置为存储和检索用于在PON上传送的存储信号。

公开(公告)号：US08131156B2

公开(公告)日：2012-03-06

申请号：US12235013

申请日：2008-09-22

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04B10/00

CPC classification number: H04J14/0226 ,  H04B10/2587 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253 ,  H04L27/2601

Abstract: An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving a centralized lightwave carrier signal with downstream data over the optical fiber. The optical network unit includes a coupler configured to split the original carrier signal into a first path and a second path. The first path includes an optical filter configured to reduce fading effects of the carrier signal. The second path includes a modulator configured to remodulate the centralized lightwave carrier signal with upstream data to produce an upstream data signal for upstream transmission.

Abstract translation: 光学系统和方法包括耦合到光纤的无源光网络单元，用于接收具有光纤上的下行数据的集中式光波载波信号。 光网络单元包括被配置为将原始载波信号分割为第一路径和第二路径的耦合器。 第一路径包括被配置为减少载波信号的衰落影响的滤光器。 第二路径包括配置成用上行数据重新调制集中式光波载波信号以产生用于上行传输的上行数据信号的调制器。

公开(公告)号：US20090274462A1

公开(公告)日：2009-11-05

申请号：US12235013

申请日：2008-09-22

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04J14/00

CPC classification number: H04J14/0226 ,  H04B10/2587 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253 ,  H04L27/2601

Abstract: An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving a centralized lightwave carrier signal with downstream data over the optical fiber. The optical network unit includes a coupler configured to split the original carrier signal into a first path and a second path. The first path includes an optical filter configured to reduce fading effects of the carrier signal. The second path includes a modulator configured to remodulate the centralized lightwave carrier signal with upstream data to produce an upstream data signal for upstream transmission.

Abstract translation: 光学系统和方法包括耦合到光纤的无源光网络单元，用于接收具有光纤上的下行数据的集中式光波载波信号。 光网络单元包括被配置为将原始载波信号分割为第一路径和第二路径的耦合器。 第一路径包括被配置为减少载波信号的衰落影响的滤光器。 第二路径包括配置成用上行数据重新调制集中式光波载波信号以产生用于上行传输的上行数据信号的调制器。

公开(公告)号：US07068936B2

公开(公告)日：2006-06-27

申请号：US10161335

申请日：2002-06-03

Applicant: Stanley Pau ,  Jianjun Yu ,  Keisuke Kojima ,  Naresh Chand

Inventor： Stanley Pau ,  Jianjun Yu ,  Keisuke Kojima ,  Naresh Chand

IPC: H04J14/00

CPC classification number: H04J14/086 ,  H04J14/02 ,  H04J14/08 ,  H04Q11/0005 ,  H04Q2011/0011 ,  H04Q2011/0016 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/0033 ,  H04Q2011/0045

Abstract: Methods and apparatus for providing a time slot switch which performs switching in the optical domain without the need for O-E-O conversion is described. The time slot switching device of the present invention may be part of a large switching device capable of performing switching and other function on WDM, TDM and WDM signals which are time division multiplexed. An optical time slot switch implemented using a time slot demultiplexer, optical cross-connect, variable delay lines and time slot multiplexer are described. Frequency conversion may be performed on a per time slot basis in cases where time slot signals are switched between lines using different wavelengths. Wave division demultiplexers and multiplexers can be added to the basic time slot switch to provide support for WDM switching and switching of TDM signals which are transmitted using wave division multiplexing.

Abstract translation: 描述了提供在光域中进行切换而不需要O-E-O转换的时隙切换的方法和装置。 本发明的时隙切换装置可以是对时分复用的WDM，TDM和WDM信号进行切换等功能的大型交换装置的一部分。 描述了使用时隙解复用器，光交叉连接，可变延迟线和时隙多路复用器实现的光时隙交换机。 在使用不同波长的线路之间切换时隙信号的情况下，可以在每个时隙的基础上执行频率转换。 波分复用器和多路复用器可以添加到基本时隙交换机中，以支持使用波分复用传输的TDM信号的WDM交换和交换。

公开(公告)号：US10033467B2

公开(公告)日：2018-07-24

申请号：US14113012

申请日：2012-04-25

Applicant: Hung-Chang Chien ,  Jianjun Yu

Inventor： Hung-Chang Chien ,  Jianjun Yu

IPC: H04B10/04 ,  H04B10/548

Abstract: A method and apparatus for generating sub-carriers is disclosed. Coherent optical sub-carriers with sub-carrier spacing are generated for carrying an orthogonal frequency division multiplexed (OFDM) signal. Multiple peaks are generated by cascading multiple phase modulators driven by different radio frequency sources.

公开(公告)号：US08781325B2

公开(公告)日：2014-07-15

申请号：US13407017

申请日：2012-02-28

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04J14/00 ,  H04J4/00 ,  H04B10/04 ,  H04B10/12 ,  H04L27/26 ,  H04L27/20 ,  H04B10/50 ,  H04B10/548

CPC classification number: H04L27/2096 ,  H04B10/5051 ,  H04B10/548 ,  H04L27/2637 ,  H04L27/2697

Abstract: A method of generating a multi-subcarrier optical signal is disclosed. A local oscillator oscillates one or more data signals to generate one or more oscillating data signals. A series of modulators phase modulate a lightwave to generate a phase modulated lightwave, wherein the series of modulators are driven by the one or more oscillating data signals. The intensity modulator modulates the phase modulated lightwave, the intensity modulator being driven by one of the oscillating data signals, to generate the multi-subcarrier optical signal.

Abstract translation: 公开了一种产生多子载波光信号的方法。 本地振荡器振荡一个或多个数据信号以产生一个或多个振荡数据信号。 一系列调制器相位调制光波以产生相位调制光波，其中该系列调制器由一个或多个振荡数据信号驱动。 强度调制器调制相位调制光波，强度调制器由振荡数据信号之一驱动，以产生多子载波光信号。

公开(公告)号：US20110075764A1

公开(公告)日：2011-03-31

申请号：US12841458

申请日：2010-07-22

Applicant: Shu-Hao Fan ,  Jianjun Yu

Inventor： Shu-Hao Fan ,  Jianjun Yu

IPC: H04L7/00 ,  H04L27/00

CPC classification number: H04L27/2657 ,  H04L27/2613 ,  H04L27/2675 ,  H04L27/2697 ,  H04L2027/003

Abstract: A method includes synchronizing a received signal with at least two orthogonal frequency division multiplexed OFDM training signals having only in-phase values and being real in the time domain and determining a frequency offset correction from the synchronization of the received signal and training symbols responsive to a cross-correlation between said training symbols to enable estimating all possible frequency offsets for correction for enabling OFDM demodulation of said received signal.

Abstract translation: 一种方法包括使接收的信号与仅具有同相位值的至少两个正交频分多路复用OFDM训练信号同步并且在时域中为实数，并且响应于一个接收信号和训练符号从接收信号的同步和训练符号确定频率偏移校正 所述训练符号之间的互相关，以便能够估计用于所述接收信号的OFDM解调的校正的所有可能的频率偏移。

公开(公告)号：US20060071612A1

公开(公告)日：2006-04-06

申请号：US10543952

申请日：2004-01-14

Applicant: Paul Veldman ,  Bernhard Van Dijk ,  Jianjun Yu

Inventor： Paul Veldman ,  Bernhard Van Dijk ,  Jianjun Yu

IPC: H05B41/16

CPC classification number: H05B41/2828 ,  Y10S315/05 ,  Y10S315/07

Abstract: In a bride circuit comprising a lamp choke that might partially saturate during the ignition of the lamp, at least one of the switches is switched off when the amount of charge displaced through it in forward direction equals a predetermined value. Despite the partial paturation of the lamp choke the amplitude of the ignition voltage is thereby effectively controlled.

Abstract translation: 在包括在灯的点火期间可能部分饱和的灯扼流圈的新电路中，当正向移动的电荷量等于预定值时，至少一个开关被切断。 尽管灯扼流圈的部分校正，因此有效地控制了点火电压的幅度。