公开(公告)号：US20100086314A1

公开(公告)日：2010-04-08

申请号：US12562251

申请日：2009-09-18

申请人： Jianjun Yu ,  Lei Xu ,  Dayou Qian ,  Ting Wang

发明人： Jianjun Yu ,  Lei Xu ,  Dayou Qian ,  Ting Wang

IPC分类号： H04B10/04

CPC分类号： H04B10/50

摘要： An optical apparatus includes a quadrature phase shift keying modulator for generating a non-return-to-zero quadrature phase shift keyed NRZ-QPSK signal from a received lightwave, the modulator being driven by a radio frequency RF signal, an intensity modulator for carving the NRZ-QPSK signal to return-to-zero RZ pulses with a different duty cycle than that of the NRZ-QPSK, the intensity modulator being driven by a radio frequency RF clock signal to change the NRZ-QPSK to an RZ-QPSK signal, and an optical filter with a narrow band for filtering the signal from the intensity modulator to increase optical power that is useable by an optical digital coherent detection system.

摘要翻译： 光学装置包括：正交相移键控调制器，用于从接收到的光波产生不归零正交相移键控的NRZ-QPSK信号，调制器由射频RF信号驱动;强度调制器，用于雕刻 NRZ-QPSK信号以与NRZ-QPSK的占空比不同的占空比的归零RZ脉冲，强度调制器由射频RF时钟信号驱动，以将NRZ-QPSK改变为RZ-QPSK信号， 以及具有窄带的滤光器，用于对来自强度调制器的信号进行滤波，以增加可由光学数字相干检测系统使用的光功率。

公开(公告)号：US20090297144A1

公开(公告)日：2009-12-03

申请号：US12392294

申请日：2009-02-25

申请人： Ivan B. Djordevic ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordevic ,  Lei Xu ,  Ting Wang

IPC分类号： H04K3/00 ,  H04B10/06

CPC分类号： H04L27/3405 ,  H04B10/2569 ,  H04B10/60 ,  H04B10/697 ,  H04B2210/252 ,  H04L1/005 ,  H04L1/0631 ,  H04L1/0656 ,  H04L5/0023 ,  H04L25/067 ,  H04L27/2649 ,  H04L2025/03426 ,  H04L2025/03611

摘要： Receivers and methods are provided for polarization mode dispersion compensation in multi-level coded-modulation schemes using a BLAST algorithm and iterative polarization cancellation. A receiver includes a vertical Bell Laboratories Layered Space-Time Architecture (V-BLAST) orthogonal frequency division multiplexing (OFDM) detector configured to receive input sequences and partially cancel polarization interference with respect to the input sequences to output symbol estimates for the input sequences. The receiver further includes one or more low-density parity-check (LDPC) decoders coupled to the V-BLAST OFDM detector configured to receive channel bit reliabilities and output code words. The channel bit reliabilities are indirectly calculated from the symbol estimates. The one or more LDPC decoders iteratively provide extrinsic soft information feedback to the V-BLAST OFDM detector to compensate for the polarization interference.

摘要翻译： 为使用BLAST算法和迭代偏振消除的多电平编码调制方案中的偏振模色散补偿提供接收机和方法。 接收机包括垂直的贝尔实验室分层时空架构（V-BLAST）正交频分复用（OFDM）检测器，其被配置为接收输入序列并部分地消除相对于输入序列的偏振干扰，以输出输入序列的符号估计。 接收机还包括耦合到V-BLAST OFDM检测器的一个或多个低密度奇偶校验（LDPC）解码器，被配置为接收信道位可靠性和输出码字。 信道位可靠性是从符号估计中间接计算的。 一个或多个LDPC解码器向V-BLAST OFDM检测器反复地提供外在的软信息反馈以补偿极化干扰。

公开(公告)号：US20080319171A1

公开(公告)日：2008-12-25

申请号：US12230199

申请日：2008-08-26

申请人： Larry D. Barker ,  Brent Everett Green ,  Lei Xu

发明人： Larry D. Barker ,  Brent Everett Green ,  Lei Xu

IPC分类号： C07K14/415

CPC分类号： C07K14/415 ,  A23J1/14

摘要： Oil seed protein isolates, particularly canola protein isolate, are produced continuously from oil seed meals, preferably at a high purity level of at least about 100 wt % (Nx 6.25), by a process wherein oil seed protein is continuously extracted from oil seed meal, the resulting protein solution is continuously concentrated, preferably to a protein content of at least about 200 g/L, and the concentrated protein solution is continuously mixed with chilled water having a temperature below about 15° C. to form protein micellar, which are settled in the settling vessel to provide a protein micellar mass (PMM) while supernatant overflows the vessel. The PMM, when accumulated to a desired degree, may be separated from supernatant and dried. The supernatant may be processed to recover additional oil seed protein isolate.

摘要翻译： 油籽蛋白分离物，特别是卡诺拉蛋白分离物，通过油籽种子餐连续提取，油籽蛋白从油籽粉中连续提取的方法，优选以至少约100重量％（N×6.25）的高纯度水平连续生产， ，所得蛋白质溶液被连续浓缩，优选至少为约200g / L的蛋白质含量，并将浓缩的蛋白质溶液与温度低于约15℃的冷冻水连续混合以形成蛋白质胶束，其为 沉降在沉淀容器中以提供蛋白质胶束质量（PMM），同时上清液溢出血管。 当PMM累积到所需程度时，可以与上清液分离并干燥。 可以处理上清液以回收另外的油籽蛋白分离物。

公开(公告)号：US20080294968A1

公开(公告)日：2008-11-27

申请号：US11941747

申请日：2007-11-16

申请人： Ivan B. Djordjevic ,  Milorad Cvijetic ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordjevic ,  Milorad Cvijetic ,  Lei Xu ,  Ting Wang

IPC分类号： H03M13/03 ,  G06F11/10

CPC分类号： H03M13/1111 ,  H03M13/255 ,  H03M13/6325

摘要： An optical communication system includes a bit-interleaved coded modulation (BICM) coder; and a low-density parity-check (LDPC) coder coupled to the BICM coder to generate codes used as component codes and in combination with a coherent detector.

摘要翻译： 光通信系统包括位交织编码调制（BICM）编码器; 以及耦合到BICM编码器的低密度奇偶校验（LDPC）编码器，以生成用作分量代码并与相干检测器组合的代码。

公开(公告)号：US07068894B2

公开(公告)日：2006-06-27

申请号：US10931931

申请日：2004-09-01

申请人： Paul R. Prucnal ,  Ivan Glesk ,  Lei Xu ,  Varghese Baby

发明人： Paul R. Prucnal ,  Ivan Glesk ,  Lei Xu ,  Varghese Baby

IPC分类号： G02F2/02 ,  G02F1/35

CPC分类号： G02F1/3519 ,  G02B6/2861

摘要： According to at least one embodiment, a system comprises a Sagnac interferometric loop and a semiconductor optical amplifier (SOA) located at an asymmetric position on that loop, wherein the Sagnac interferometric loop and the SOA are operable to perform signal conversion on an input signal.

摘要翻译： 根据至少一个实施例，系统包括位于该环路上的非对称位置处的Sagnac干涉测量环路和半导体光放大器（SOA），其中Sagnac干涉测量环路和SOA可操作以对输入信号执行信号转换。

公开(公告)号：US06969205B2

公开(公告)日：2005-11-29

申请号：US10727735

申请日：2003-12-04

申请人： Richard L. Duesterberg ,  Edmund L. Wolak ,  Marc K. Von Gunten ,  Nina Morozova ,  Donald C. Hargreaves ,  Prasad Yalamanchili ,  Hilary Clarke ,  Jay A. Skidmore ,  Lei Xu ,  Christopher L. Hart ,  William Bardy ,  Jeffrey Zack ,  Kuochou Tai

发明人： Richard L. Duesterberg ,  Edmund L. Wolak ,  Marc K. Von Gunten ,  Nina Morozova ,  Donald C. Hargreaves ,  Prasad Yalamanchili ,  Hilary Clarke ,  Jay A. Skidmore ,  Lei Xu ,  Christopher L. Hart ,  William Bardy ,  Jeffrey Zack ,  Kuochou Tai

IPC分类号： G02B6/42 ,  G02B6/02

CPC分类号： G02B6/4238 ,  G02B6/4248 ,  G02B6/4296

摘要： A fiber tail assembly (FTA) with a micro-lens formed in the fiber tip is used to couple the laser light out of the package and along the fiber. The FTA is soldered at two points where metallized bands are deposited on the fiber pigtail, one at a fiber mount near the diode where it can be soldered into alignment with the laser diode, and two at the snout which forms a feed through the housing and seal for the package. Typically, the FTA is metallized along its entire length within the package. In this invention the two-metallized bands are separated by a region that is unmetallized.

公开(公告)号：US06448197B1

公开(公告)日：2002-09-10

申请号：US09615526

申请日：2000-07-13

申请人： Zhongmin Liu ,  Lixin Yang ,  Lei Xu ,  Chenglin Sun ,  Yi-Gang Xiong

发明人： Zhongmin Liu ,  Lixin Yang ,  Lei Xu ,  Chenglin Sun ,  Yi-Gang Xiong

IPC分类号： B01J2985

CPC分类号： B01J29/85 ,  B01J29/76 ,  B01J29/90 ,  B01J37/086 ,  B01J38/50 ,  B01J38/52 ,  B01J2229/18 ,  C07C1/20 ,  C07C2529/83 ,  C07C2529/85 ,  C10G3/45 ,  C10G3/49 ,  C10G2300/4006 ,  C10G2300/703 ,  C10G2300/708 ,  C10G2400/20 ,  Y02P20/584 ,  Y02P30/20 ,  Y02P30/42 ,  Y10S423/30 ,  C07C11/02

摘要： A molecular sieve and a molecular sieve catalyst containing a surface heat impregnated with a metal. The molecular sieve is heated in the presence of a metal containing solution at a temperature between 30° C. and 400° C. then separated from the metal containing solution. The molecular sieve and molecular sieve catalyst is used to make olefin from an oxygenate feedstock.

摘要翻译： 分子筛和含有浸渍有金属的表面热分子筛催化剂。 分子筛在含金属溶液的存在下在30℃和400℃之间的温度下加热，然后与含金属溶液分离。 分子筛和分子筛催化剂用于从含氧化合物原料制备烯烃。

公开(公告)号：US09141968B2

公开(公告)日：2015-09-22

申请号：US13583889

申请日：2012-04-24

申请人： Lei Xu ,  Juqiang Bao ,  Wei Zhou ,  Wanhui Dai

发明人： Lei Xu ,  Juqiang Bao ,  Wei Zhou ,  Wanhui Dai

IPC分类号： G06Q30/00 ,  G06Q30/02

CPC分类号： G06Q30/0238 ,  G06Q30/0251

摘要： An authentication device and a mobile device work together for redeeming an electronic promotion code at a point of sale. Upon receipt of an electronic promotion code, the authentication device encrypts the electronic promotion code and transmits the encrypted promotion code to the mobile device. In response, the mobile device decrypts the encrypted promotion code and determines whether the decrypted promotion code satisfies one or more predefined conditions. If so, the mobile device displays a message, indicating a successful redemption of the promotion code at the point of sale. In some implementations, the message includes a confirmation code, which is provided to the authentication device for generating a transaction log record. In some implementations, the mobile device also generates a separate transaction log record for the promotion code and transmits the transaction log record to a remote server for further processing.

摘要翻译： 验证设备和移动设备一起工作以在销售点兑换电子促销代码。 在接收到电子促销代码时，认证装置加密电子促销代码，并将加密的促销代码发送到移动装置。 作为响应，移动设备解密加密的促销代码，并确定解密的促销代码是否满足一个或多个预定条件。 如果是这样，移动设备会显示一条消息，指示在销售点成功兑换促销代码。 在一些实现中，消息包括确认代码，该确认代码被提供给认证设备以生成事务日志记录。 在一些实施方式中，移动设备还为促销代码生成单独的事务日志记录，并将事务日志记录传送到远程服务器用于进一步处理。

公开(公告)号：US08761608B2

公开(公告)日：2014-06-24

申请号：US13251218

申请日：2011-10-01

申请人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

IPC分类号： H04B10/524

CPC分类号： H04L27/2634 ,  H04B10/548 ,  H04B10/611 ,  H04B10/612 ,  H04B10/614 ,  H04L25/4902 ,  H04L27/2697

摘要： Systems and methods are disclosed to provide optical communication by using subcarriers as individual bases functions, obtaining signal constellation points of an N-dimensional pulse amplitude modulation (ND-PAM) constellation diagram as an N-dimensional Cartesian product of a one-dimensional PAM; and transmitting the N-dimensional signal constellation point over all N orthogonal subcarriers serving as individual bases functions.

摘要翻译： 公开了通过使用子载波作为单个基础功能来提供光通信的系统和方法，获得作为一维PAM的N维笛卡尔乘积的N维脉冲幅度调制（ND-PAM）星座图的信号星座点; 并且在用作各个基本功能的所有N个正交子载波上发送N维信号星座点。

公开(公告)号：US08743984B2

公开(公告)日：2014-06-03

申请号：US13441814

申请日：2012-04-06

申请人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

IPC分类号： H04L5/12

CPC分类号： H04B10/2581 ,  H04L27/2096

摘要： Systems and methods are disclosed with a spatial-domain-based multi-dimensional coded-modulation scheme that improves dramatically OSNR sensitivity and tolerance to fiber nonlinearities by using D-dimensional signal constellations, where D=2(2+M)N. The factor 2 originates from two polarizations, 2+M electrical basis functions are selected (2 in-phase/quadrature channels and M pulse-position like basis functions), and N represents the number of orbital angular momentum (OAM) states used in FMFs/MMFs. For single mode fiber applications N is 1.

摘要翻译： 公开了具有基于空间域的多维编码调制方案的系统和方法，通过使用D维2信号星座（D = 2（2 + M）N），可以显着提高OSNR灵敏度和对光纤非线性的容限。 因子2源于两个极化，选择2 + M电基函数（2个同相/正交通道和M个脉冲位置，如基函数），N表示FMF中使用的轨道角动量（OAM）状态的数量 / MMFs。 对于单模光纤应用，N为1。