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1. 发明专利

JP2010041707A Production method of optical transmission channel with 100 g bit/sec or more 审中-公开
标题翻译：具有100G比特/秒以上的光传输信道的生产方法
公开(公告)号：JP2010041707A
公开(公告)日：2010-02-18
申请号：JP2008323531
申请日：2008-12-19
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： YU JIANJUN , XU LEI , JI PHILIP , WANG TING , QIAN DAYOU , YANO TAKASHI
IPC分类号： H04J14/00 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H04J11/00 , H04J14/04 , H04J14/06
CPC分类号： H04B10/5165 , H04B10/54 , H04B10/548 , H04L27/2601
摘要： PROBLEM TO BE SOLVED: To produce a broad band width optical channel which has high spectral efficiency, a high dispersion allowable range and functions at 100 Gbit/sec or more. SOLUTION: A production method includes processes of: producing, from an optical source, at least two optical carriers with a constant wavelength interval; producing an upper side sub-channel and a lower side sub-channel which are orthogonal to each other and are mutually separated based on a wavelength interval generated by the modulation of the optical carrier, depending on OFDM signals which are suppressed in their carrier waves and are up-converted; and combining one optical wave from the upper sub-channel and one optical wave from the lower sub-channel into an optical channel for transmission over an optical fiber. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了产生具有高光谱效率，高色散允许范围并以100Gbit / sec以上的功能的宽带宽光信道。解决方案：一种制造方法包括以下处理：从光源产生至少两个具有恒定波长间隔的光载体; 根据在其载波中被抑制的OFDM信号，基于由光载波的调制产生的波长间隔，产生彼此正交并相互分离的上侧子信道和下侧子信道，以及被上转换并且将来自上部子信道的一个光波和来自下部子信道的一个光波组合成用于通过光纤传输的光学信道。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009095025A Virtual i/q multiplexing in optical code division for secure local area ofdm 审中-公开
标题翻译：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：JP2009095025A
公开(公告)日：2009-04-30
申请号：JP2008260886
申请日：2008-10-07
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： HUANG YUE-KAI , WANG TING , HU JUNQIANG
IPC分类号： H04J14/00 , H04J11/00 , H04J14/02 , H04J14/04 , H04J14/06
CPC分类号： H04J14/005 , H04J14/02 , H04L5/0007 , H04L5/0044 , H04L27/2626 , H04L27/2647
摘要： PROBLEM TO BE SOLVED: To provide a system and method for virtual I/Q multiplexing in optical code division for secure local area OFDM. SOLUTION: The method for virtual I/Q multiplexing 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 by 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 with respect to the OFDM signal. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供用于安全局域OFDM的光码分割中的虚拟I / Q复用的系统和方法。解决方案：用于虚拟I / Q复用的方法包括：在至少两个信道上编码包括多个频谱仓的宽频谱信号以提供补充频谱编码。对于每个通道，互补的频谱编码是以相反极性强度调制的。通过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）光学码来调制M进制正交频分复用（OFDM）信号，以提供虚拟的同相（I）和正交（Q）（I / Q）相对于OFDM信号的多路复用。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008167435A Polarization mode dispersion compensation using bcjr equalizer and iterative ldpc decoding 审中-公开
标题翻译：使用BCJR均衡器和迭代LDPC解码的极化模式分散补偿
公开(公告)号：JP2008167435A
公开(公告)日：2008-07-17
申请号：JP2007332264
申请日：2007-12-25
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： DJORDJEVIC IVAN B , CVIJETIC MILORAD , XU LEI , WANG TING
IPC分类号： H03M13/19 , H03M13/29
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in a convolution code based turbo equalization system, an error floor phenomenon of about 10
-6 bit error ratio (BER) occurs.
SOLUTION: A turbo equalizer includes a Bahl-Cocke-Jelinek-Raviv (BCJR) equalizer configured to receive a transmitted signal and partially cancel inter-symbol interference (ISI) due to polarization-mode dispersion (RMD). A low-density parity check (LDPC) decoder is coupled to the BCJR equalizer to receive channel bit reliabilities therefrom. The LDPC decoder iteratively provides extrinsic soft information feedback to the BCJR equalizer to compensate for PMD.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题为了解决在基于卷积码的turbo均衡系统中发生大约10个SP-6 / SP>比特误码率（BER）的错误出现现象的问题。解决方案：一个Turbo均衡器包括一个Bahl-Cocke-Jelinek-Raviv（BCJR）均衡器，被配置为接收发送的信号并且部分地消除由于偏振模色散（RMD）引起的符号间干扰（ISI）。低密度奇偶校验（LDPC）解码器耦合到BCJR均衡器以从其接收信道位可靠性。 LDPC解码器向BCJR均衡器迭代地提供外部软信息反馈以补偿PMD。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2008072714A System and method for providing wireless communication over passive optical network (pon) 有权
标题翻译：用于提供无源光网络（PON）的无线通信的系统和方法
公开(公告)号：JP2008072714A
公开(公告)日：2008-03-27
申请号：JP2007234043
申请日：2007-09-10
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： HU JUNQIANG , WANG TING , QIAN DAYOU , LUO YUANQIU , SUEMURA TAKEHIKO , SHIBUYA MAKOTO
IPC分类号： H04L12/44 , H04B10/27 , H04B10/272 , H04J14/00 , H04J14/02 , H04W92/24
摘要： PROBLEM TO BE SOLVED: To provide economic network solutions. SOLUTION: A network system include a wireless base station and a passive optical network, and the wireless base station is configured to provide portable and fixed services to customers, and integrated at a central office of a service provider. The passive optical network is coupled to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site such that a wireless signal from the wireless base station is transmitted in parallel with a passive fiber network signal through the link. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供经济网络解决方案。解决方案：网络系统包括无线基站和无源光网络，无线基站被配置为向客户提供便携和固定的服务，并且集成在服务提供商的中心局。无源光网络耦合到中心局的无线基站，以提供链路以将无线基站的无线操作的天线扩展到远程站点，使得来自无线基站的无线信号与无源光纤网络信号通过链路。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2009201099A Method and apparatus for 100 gbit/s ofdm optical signal generation 审中-公开
标题翻译：用于100 GBIT / S OFDM光信号生成的方法和装置
公开(公告)号：JP2009201099A
公开(公告)日：2009-09-03
申请号：JP2008323193
申请日：2008-12-19
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： YU JIANJUN , WANG TING
IPC分类号： H04J14/00 , H04J11/00 , H04J14/04 , H04J14/06
CPC分类号： H04J14/06 , H04B10/5165 , H04B10/532 , H04B10/548 , H04J14/002 , H04L5/0014 , H04L27/2627 , H04L27/2697
摘要： PROBLEM TO BE SOLVED: To generate e.g., over 100 Gbit/s orthogonal frequency division multiplexing (OFDM) optical signals with the limited bandwidth allowed for A/D and D/A converter.
SOLUTION: A method for OFDM optical signal generation includes modulating lightwaves to provide first and second OFDM signal sidebands of a first polarization direction and first and second OFDM signal sidebands of a second polarization direction, and combining sidebands that are oppositely positioned in relation to the respective polarization directions and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：产生例如具有允许用于A / D和D / A转换器的有限带宽的超过100Gbit / s的正交频分复用（OFDM）光信号。解决方案：一种用于OFDM光信号生成的方法，包括调制光波以提供第一偏振方向的第一和第二OFDM信号边带以及第二偏振方向的第一和第二OFDM信号边带，并且组合相对位置相关的边带到各个偏振方向，并且在每个偏振方向从第一和第二OFDM信号边带连接以提供偏振复用OFDM信号。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009105890A Orthogonal frequency division multiple access based upon virtual passive optical network (vpon) 审中-公开
标题翻译：基于虚拟被动光网络（VPON）的正交频分多址访问
公开(公告)号：JP2009105890A
公开(公告)日：2009-05-14
申请号：JP2008259203
申请日：2008-10-06
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： WEI WEI , WANG TING
IPC分类号： H04B10/20 , H04J1/00 , H04J11/00 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0282
摘要： PROBLEM TO BE SOLVED: To provide an orthogonal frequency division multiple access based upon virtual passive optical network (VPON). SOLUTION: Various types of passive optical networks operate simultaneously in a passive optical network system having an optical line terminal, a passive remote node, and a plurality of multiple optical network devices. Downstream data are orthogonal frequency division multiplexed onto a single wavelength optical carrier transmitted on a first downstream optical beam from the optical line terminal to a splitter in the passive remote node. The first downstream optical beam is divided into a plurality of second downstream optical beams to be transmitted to a specific optical network device. Upstream data are orthogonal frequency division multiplexed onto a single wavelength optical carrier transmitted on a second upstream optical beam from each optical network device to a coupler in the passive remote node. The upstream wavelength for each optical network device is different. The wavelength division multiplexed optical beam is transmitted from the passive remote node to a parallel signal detector in the optical line terminal. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供基于虚拟无源光网络（VPON）的正交频分多址。解决方案：在具有光线路终端，被动远程节点和多个多个光网络设备的无源光网络系统中，各种类型的无源光网络同时工作。下行数据被正交频分复用到在从光线路终端到被动远程节点中的分路器的第一下行光束上传输的单个波长光载波上。第一下行光束被分成多个第二下行光束，以被发送到特定的光网络设备。上行数据在从每个光网络设备到被动远程节点中的耦合器的第二上行光束上传输的单波长光载波上进行正交频分复用。每个光网络设备的上行波长是不同的。波分复用光束从无源远端节点传输到光线路终端中的并行信号检测器。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2009284454A Method and system for generating an optical ofdm signal with reduced osnr requirement 审中-公开
标题翻译：用于产生具有降低的OSNR要求的光学OFDM信号的方法和系统
公开(公告)号：JP2009284454A
公开(公告)日：2009-12-03
申请号：JP2008172899
申请日：2008-07-02
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： YU JIANJUN , WANG TING
IPC分类号： H04B10/04 , G02F2/00 , H04B10/06 , H04B10/142 , H04B10/152 , H04J14/00 , H04J14/02
CPC分类号： H04L27/2627 , H04B10/505 , H04B10/5165 , H04B10/548 , H04L27/2697
摘要： PROBLEM TO BE SOLVED: To provide a method for generating an optical OFDM signal, with reduced optical signal to noise ratio (OSNR) requirement.
SOLUTION: A method for generating an optical OFDM signal with reduced OSNR requirement includes separating an up-converted OFDM signal into a first part and a second part out of phase with the first part; driving a modulator with the first and second parts of the up-converted OFDM signal; and varying the lightwave with the modulator for generating a carrier suppressed OFDM signal having improved receiver sensitivity.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种产生光OFDM信号的方法，具有降低的光信噪比（OSNR）要求。解决方案：一种用于产生具有降低的OSNR要求的光OFDM信号的方法，包括将上转换的OFDM信号分离成与第一部分异相的第一部分和第二部分; 用上变频OFDM信号的第一和第二部分驱动调制器; 并用调制器改变光波，以产生具有改进的接收机灵敏度的载波抑制OFDM信号。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2005284282A Flexible band tunable filter 有权
标题翻译：柔性带式过滤器
公开(公告)号：JP2005284282A
公开(公告)日：2005-10-13
申请号：JP2005088069
申请日：2005-03-25
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： WANG TING , JI PHILIP NAN , ZONG LANE , MATSUDA OSAMU , WATANABE KOJIRO
IPC分类号： G02B26/00 , G02B6/28 , G02B6/34 , G02F1/01 , H04B10/02 , H04B10/28 , H04J14/00 , H04J14/02
CPC分类号： G02B6/2935 , G02B6/29383 , G02B6/29395
摘要： PROBLEM TO BE SOLVED: To provide a method for designing a flexible band tunable filter which is capable of selecting any single channel or multiple of adjacent channels in a waveband of an optical signal in an optical communication network. SOLUTION: The flexible band tunable filter is provided with a 1st tunable edge filter 110 so as to drop a 1st channel range in an input signal and a 2nd tunable edge filter 120 which receives the dropped signal from the 1st tunable edge filter 110 and drops a 2nd channel range in the dropped signal from the 1st tunable edge filter 110. A common part between the 1st channel range and 2nd channel range prescribes a tunable passing band of the flexible band tunable filter 100. The flexible band tunable filter has particular application in wavelength division multiplexing communication networks. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于设计柔性带可调滤波器的方法，其能够在光通信网络中在光信号的波段中选择任何单个信道或多个相邻信道。解决方案：柔性带可调滤波器设置有第一可调边缘滤波器110，以便在输入信号中丢弃第一信道范围，并且第二可调边缘滤波器120接收来自第一可调边缘滤波器110的丢弃信号并且在来自第一可调边缘滤波器110的丢弃信号中丢弃第二信道范围。第一信道范围和第二信道范围之间的公共部分规定了柔性带可调滤波器100的可调谐通过频带。柔性带可调滤波器具有特定的应用于波分复用通信网络。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2010041706A Method and apparatus for phase modulation of optical orthogonal frequency division multiplexing signal 审中-公开
标题翻译：光学正交频分复用信号相位调制方法与装置
公开(公告)号：JP2010041706A
公开(公告)日：2010-02-18
申请号：JP2008323288
申请日：2008-12-19
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： XU LEI , YANO TAKASHI , WANG TING , HU JUNQIANG , SHIBUYA MAKOTO
IPC分类号： H04B10/02 , H04B10/18 , H04J14/00 , H04J14/04 , H04J14/06
CPC分类号： H04J14/0298 , H04B10/548 , H04L5/12 , H04L27/2614 , H04L27/2627 , H04L27/2697
摘要： PROBLEM TO BE SOLVED: To provide phase modulation method for an optical orthogonal frequency division multiplexing (OFDM) signal at which a fiber non-linear effect during optical OFDM signal transmission can be reduced. SOLUTION: A method includes steps for: generating an optical orthogonal frequency division multiplexing (OFDM) signal with in-phase and quadrature-phase components; varying an RF carrier according to the in-phase and quadrature-phase components; and modulating a phase of a lightwave carrier according to the varied RF carrier to generate an optical OFDM signal with an equalized amplitude. COPYRIGHT: (C)2010,JPO&INPIT

10. 发明专利

JP2009153092A Intra-channel equalizing optical interleaver 有权
标题翻译：信道均衡光学交换机
公开(公告)号：JP2009153092A
公开(公告)日：2009-07-09
申请号：JP2008198080
申请日：2008-07-31
申请人： Nec Lab America Inc , エヌイーシーラボラトリーズアメリカインクNEC Laboratories America, Inc.
发明人： JI PHILIP NAN , XU LEI , WANG TING , MURAKAMI SHUJI , TAJIMA TSUTOMU , YANO TAKASHI
IPC分类号： H04B10/02 , H04B10/18 , H04J14/00 , H04J14/02
CPC分类号： G02B6/29386 , G02B6/29335 , G02B6/2935 , G02B6/29358 , H04B10/25073 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an improved intra-channel equalizing interleaver that suppresses inter-symbol interference (ISI) caused by the filtering effect to improve the transmission performance of a dense wavelength-division-multiplexing (DWDM) signal. SOLUTION: An apparatus includes an interleaver configuration for at least one of combining or separating odd and even channel groups to achieve channel density doubling; and an optical equalizer for suppressing inter symbol interference within a plurality of channels to provide intra-channel equalizing in the optical path, the equalizer being integrated into the interleaver. COPYRIGHT: (C)2009,JPO&INPIT

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