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183 条记录 (耗时 0.024 秒)

    Direct Detection For Receiving Polarization Multiplexing Signals
    72.
    发明申请
    Direct Detection For Receiving Polarization Multiplexing Signals 有权
    用于接收极化复用信号的直接检测

    公开(公告)号：US20090202243A1

    公开(公告)日：2009-08-13

    申请号：US12371233

    申请日：2009-02-13

    申请人： Dayou Qian ,  Lei Xu ,  Junqiang Hu ,  Ting Wang

    发明人： Dayou Qian ,  Lei Xu ,  Junqiang Hu ,  Ting Wang

    IPC分类号： H04J14/06

    CPC分类号： H04J14/06 ,  H04B10/61 ,  H04B10/676

    摘要： There is provided a method for detecting optical signals comprising employing a photo diode to both directly detect a received optical signal and convert it into an electrical signal for recovery of data bit stream information in the received optical signal, the received optical signal being derived from a separation of two polarization multiplexed optical signals that were combined before being received.

    摘要翻译： 提供了一种用于检测光信号的方法，包括采用光电二极管直接检测接收到的光信号并将其转换成用于恢复所接收的光信号中的数据位流信息的电信号，所接收的光信号从 在接收之前组合的两个偏振复用光信号的分离。

    Continuous process for production of oil seed protein isolate
    73.
    发明申请
    Continuous process for production of oil seed protein isolate 有权

    公开(公告)号：US20090076252A1

    公开(公告)日：2009-03-19

    申请号：US12230303

    申请日：2008-08-27

    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： C07K1/14

    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 % (N×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.

    Optical Subchannels From a Single Lightwave Source
    74.
    发明申请
    Optical Subchannels From a Single Lightwave Source 审中-公开
    来自单个光波源的光学子信道

    公开(公告)号：US20080063396A1

    公开(公告)日：2008-03-13

    申请号：US11690926

    申请日：2007-03-26

    申请人： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

    发明人： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

    IPC分类号： H04B10/24

    CPC分类号： H04B10/5561 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/5165

    摘要： An apparatus includes a generator for obtaining at least two lightwave carriers from a single lightwave source, at least two modulators for selectively varying the lightwave carriers according to respective data signals; and a coupler for combining the modulated lightwave carriers for optical transmission. The generator can be one of an optical carrier suppression or phase modulation. The apparatus can employ a filter for separating the lightwave carriers by a fixed wavelength spacing before selectively varying the lightwave carriers according to the respective data signals. In an exemplary embodiment of the invention, the respective data signals are two 50 Gbit/s differential quadrature phase key DQPSK signals, each 50 Gbit/s DQPSK signal including a first 25 Gbit/s data signal out of phase with a second 25 Gbit/s data signal for selectively varying a respective one of the two lightwave carriers, and the combined modulated lightwave carriers are a 100 Gbit/s DQPSK signal. Preferably, the apparatus includes a modulator for pulse shaping the lightwave carriers.

    摘要翻译： 一种装置包括用于从单个光波源获得至少两个光波载波的发生器，至少两个用于根据相应数据信号选择性地改变光波载波的调制器; 以及用于组合用于光传输的调制光波载波的耦合器。 发生器可以是光载波抑制或相位调制之一。 根据相应的数据信号，在选择性地改变光波载波之前，该装置可以采用用于将光波载波分离固定波长间隔的滤波器。 在本发明的示例性实施例中，相应的数据信号是两个50Gbit / s的差分正交相位键DQPSK信号，每个50Gbit / s的DQPSK信号包括与第二25Gbit / s的第二25Gbit / s数据信号异相， 用于选择性地改变两个光波载波中的相应一个的数据信号，并且组合的调制的光波载波是100Gbit / s的DQPSK信号。 优选地，该装置包括用于对光波载波进行脉冲整形的调制器。

    Optical Re-Modulation in DWDM Radio-Over-Fiber Network
    75.
    发明申请
    Optical Re-Modulation in DWDM Radio-Over-Fiber Network 审中-公开
    DWDM无线光纤网络中的光重新调制

    公开(公告)号：US20070292143A1

    公开(公告)日：2007-12-20

    申请号：US11761021

    申请日：2007-06-11

    申请人： Jianjun Yu ,  Lei Xu ,  Ting Wang

    发明人： Jianjun Yu ,  Lei Xu ,  Ting Wang

    IPC分类号： H04B10/04

    CPC分类号： H04B10/25754

    摘要： An apparatus includes multiple signal paths for optically converting an optical signal to multiples of the optical signal at different respective carrier frequencies for reducing interference between wireless transmissions of the multiples of the optical signal. Preferably, the converting includes a first modulator for modulating the optical signal into a first optical carrier and an initial first-order sideband signal with a frequency spacing twice that of the first optical carrier and a first interleaver for separating the first optical carrier and the initial first-order sideband signal. The converting also includes a second phase modulator for modulating the first optical carrier into a second optical carrier and a second first-order sideband signal with a frequency spacing twice that of the second optical carrier.

    摘要翻译： 一种装置包括多个信号路径，用于将光信号光学地转换成不同相应载波频率处的光信号的倍数，以减少光信号的倍数的无线传输之间的干扰。 优选地，转换包括用于将光信号调制成第一光载波的第一调制器和具有两倍于第一光载波的频率间隔的初始一阶边带信号和用于分离第一光载波的初始交织器和初始 一阶边带信号。 转换还包括用于将第一光载波调制成第二光载波的第二相位调制器和频率间隔是第二光载波的频率间隔的第二一阶边带信号。

    High-brightness spatial-multiplexed multi-emitter pump with tilted collimated beam
    78.
    发明授权
    High-brightness spatial-multiplexed multi-emitter pump with tilted collimated beam 有权
    具有倾斜准直光束的高亮度空间复用多发射器泵

    公开(公告)号：US09065237B2

    公开(公告)日：2015-06-23

    申请号：US13313490

    申请日：2011-12-07

    申请人： James Yonghong Guo ,  Jay A. Skidmore ,  Lei Xu ,  Jane Cheng

    发明人： James Yonghong Guo ,  Jay A. Skidmore ,  Lei Xu ,  Jane Cheng

    IPC分类号： H01S5/02 ,  H01S5/40 ,  H01S5/022 ,  H01S5/00

    CPC分类号： H01S5/02252 ,  H01S5/005 ,  H01S5/4012 ,  H01S5/4043

    摘要： Multi-mode diode emitters are stacked in a staircase formation to provide a spatially-multiplexed output. Improved coupling efficiency is achieved by providing tilted collimated output beams that determine an effective step height of the stepped structure. Since the effective step height is dependent on the tilt angle, a variable number of emitters can be used inside packages having a same physical step height, while still attaining high coupling efficiency.

    摘要翻译： 多模二极管发射器堆叠在阶梯形式中以提供空间复用输出。 通过提供确定阶梯式结构的有效步长的倾斜的准直输出光束来实现改进的耦合效率。 由于有效步高取决于倾斜角度，所以在具有相同物理台阶高度的包装内可以使用可变数量的发射器，同时仍然获得高耦合效率。

    Cholesky decomposition in an integrated circuit device
    80.
    发明授权
    Cholesky decomposition in an integrated circuit device 有权
    集成电路器件中的Cholesky分解

    公开(公告)号：US08805911B1

    公开(公告)日：2014-08-12

    申请号：US13149661

    申请日：2011-05-31

    申请人： Lei Xu ,  Martin Langhammer

    发明人： Lei Xu ,  Martin Langhammer

    IPC分类号： G06F7/38

    CPC分类号： G06F17/16

    摘要： Efficient and scalable circuitry for performing Cholesky decomposition is based on two types of processing elements. A first type of processing element provides inverse square root and multiplication operations. A second type of processing element includes a first computation path for outputting an inner product difference element and a second computation path for outputting an inner product element. Processing elements of the first and second type may be cascaded to achieve a decomposition of a matrix of an arbitrary size. The circuitry is flexible to allow different throughput requirements, and can be optimized to reduce latency and resource consumption.

    摘要翻译： 用于执行Cholesky分解的高效和可扩展的电路基于两种类型的处理元件。 第一类处理元件提供反平方根和乘法运算。 第二类型的处理元件包括用于输出内积差元件的第一计算路径和用于输出内积元件的第二计算路径。 可以级联第一和第二类型的处理元件以实现任意大小的矩阵的分解。 该电路是灵活的，以允许不同的吞吐量要求，并且可以被优化以减少延迟和资源消耗。