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87 条记录 (耗时 0.03 秒)

    Adaptive Optics Based Simultaneous Turbulence Compensation of Multiple Orbital Angular Momentum Beams
    1.
    发明申请
    Adaptive Optics Based Simultaneous Turbulence Compensation of Multiple Orbital Angular Momentum Beams 有权
    多轨道角动量梁的自适应光学同时湍流补偿

    公开(公告)号：US20160028479A1

    公开(公告)日：2016-01-28

    申请号：US14807793

    申请日：2015-07-23

    申请人： Yongxiong Ren ,  Guodong Xie ,  Hao Huang ,  Alan E. Willner

    发明人： Yongxiong Ren ,  Guodong Xie ,  Hao Huang ,  Alan E. Willner

    IPC分类号： H04B10/112

    CPC分类号： H04B10/1123 ,  H04B10/1121

    摘要： An adaptive optics compensation approach for an OAM multiplexed FSO communication system is described, in which a Gaussian beam is used to probe the turbulence-induced wavefront distortions and derive the correction pattern for compensating the OAM beams. Using this approach, we demonstrate simultaneous compensation of multiple OAM beams each carrying a 100-Gbit/s data channel through emulated atmospheric turbulence. The results indicate that the turbulence-induced crosstalk and power penalty could be efficiently mitigated by ˜12.5 dB and ˜11 dB respectively.

    摘要翻译： 描述了一种用于OAM复用FSO通信系统的自适应光学补偿方法，其中使用高斯光束来探测湍流引起的波前失真并导出用于补偿OAM波束的校正模式。 使用这种方法，我们演示了通过仿真的大气湍流同时补偿多个OAM波束，每个OAM波束承载100 Gbit / s数据通道。 结果表明，湍流引起的串扰和功率损失分别可以有效地缓解〜12.5dB和〜11dB。

    Systems and Techniques for Orbital Angular Momentum Based Reconfigurable Switching
    4.
    发明申请
    Systems and Techniques for Orbital Angular Momentum Based Reconfigurable Switching 有权
    用于轨道角动量的可重构开关的系统和技术

    公开(公告)号：US20150349910A1

    公开(公告)日：2015-12-03

    申请号：US14663392

    申请日：2015-03-19

    申请人： Hao Huang ,  Yang Yue ,  Nisar Ahmed ,  Moshe J. Willner ,  Yan Yan ,  Yongxiong Ren ,  Moshe Tur ,  Alan E. Willner

    发明人： Hao Huang ,  Yang Yue ,  Nisar Ahmed ,  Moshe J. Willner ,  Yan Yan ,  Yongxiong Ren ,  Moshe Tur ,  Alan E. Willner

    IPC分类号： H04J14/02 ,  H04B10/516 ,  H04B10/532 ,  H04J14/04

    CPC分类号： H04J14/04 ,  H04J14/00

    摘要： In at least one aspect, a device for Orbital Angular Momentum (OAM) based optical communication includes a first spatial light modulator configured to down-convert a first plurality of higher-order OAM modes from a communication signal to a second plurality of higher-order OAM modes and a first Gaussian mode, a second spatial light modulator configured to drop the first Gaussian mode and add a second Gaussian mode to the second plurality of higher-order OAM modes, and a third spatial light modulator configured to up-convert the second plurality of higher-order OAM modes and the second Gaussian mode to a third plurality of higher-order OAM modes for further communications.

    摘要翻译： 在至少一个方面，一种用于基于轨道角动量（OAM）的光通信的装置包括：第一空间光调制器，被配置为将第一多个高阶OAM模式从通信信号下变频到第二多个高阶 OAM模式和第一高斯模式，第二空间光调制器被配置为降低第一高斯模式并将第二高斯模式添加到第二多个高阶OAM模式，以及第三空间光调制器，被配置为将第二高斯模式 多个高阶OAM模式和第二高斯模式到第三多个高阶OAM模式用于进一步通信。

    Channel decoding method and decoder for tail-biting codes
    8.
    发明授权
    Channel decoding method and decoder for tail-biting codes 有权
    通道解码方法和解码器，用于尾码

    公开(公告)号：US09083385B2

    公开(公告)日：2015-07-14

    申请号：US13809932

    申请日：2012-03-19

    申请人： Xiaotao Wang ,  Hua Qian ,  Jing Xu ,  Hao Huang ,  Yang Yang ,  Fang Wang

    发明人： Xiaotao Wang ,  Hua Qian ,  Jing Xu ,  Hao Huang ,  Yang Yang ,  Fang Wang

    IPC分类号： H03M13/03 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H03M13/00 ,  H03M13/15

    CPC分类号： H03M13/23 ,  H03M13/1505 ,  H03M13/3738 ,  H03M13/413 ,  H03M13/6505 ,  H03M13/6525

    摘要： A channel decoding method and decoder are disclosed. The decoding method is based on a Circular Viterbi Algorithm (CVA), rules out impossible initial states one by one through iterations according the received soft information sequence, and finally finds the global optimal tail-biting path. In the present invention, all impossible iterations are ruled out through multiple iterations, and only the initial state having most likelihood with the received sequence survives. The algorithm is finally convergent to an optimal tail-biting path to be output. In addition, the method also updates a metric of a maximum likelihood tail-biting path (MLTBP) or rules out impossible initial states through the obtained surviving tail-biting path, thereby effectively solving the problem that the algorithm is not convergent due to a circular trap, providing a practical optimal decoding algorithm for a tail-biting convolutional code, reducing the complexity of an existing decoding scheme, and saving the storage space.

    摘要翻译： 公开了一种信道解码方法和解码器。 解码方法基于循环维特比算法（CVA），根据接收到的软信息序列逐个排除不可能的初始状态，最终找到全局最优尾巴路径。 在本发明中，通过多次迭代排除所有不可能的迭代，并且只有具有接收序列的最可能性的初始状态才能存活。 该算法最终收敛到要输出的最佳尾巴路径。 另外，该方法还通过所获得的幸存尾巴路径来更新最大似然尾巴路径（MLTBP）的度量或者排除不可能的初始状态，从而有效地解决了算法由于循环而不会收敛的问题 陷阱，为尾部卷积码提供实用的最佳解码算法，降低了现有解码方案的复杂度，并节省了存储空间。

    Accessory gearbox with a starter/generator
    9.
    发明授权
    Accessory gearbox with a starter/generator 有权
    带起动器/发电机的附件变速箱

    公开(公告)号：US08857192B2

    公开(公告)日：2014-10-14

    申请号：US12763441

    申请日：2010-04-20

    申请人： Hao Huang ,  Jan Zywot

    发明人： Hao Huang ,  Jan Zywot

    IPC分类号： F02C7/32 ,  F02C7/275 ,  B64D41/00 ,  F02C7/36

    CPC分类号： F02C7/36 ,  B64D41/00 ,  F02C7/275 ,  F02C7/32 ,  F05D2220/764 ,  F05D2220/768 ,  H02K7/116 ,  H02K19/38 ,  Y02T50/44 ,  Y02T50/671

    摘要： An assembly for a gas turbine engine comprising an accessory gearbox comprising a drive gear and a starter/generator mechanically mounted to the accessory gearbox. The starter/generator comprising a rotatable shaft, a pinion gear carried by the shaft, a main machine carried by the shaft, a permanent magnet generator (PMG) carried by the shaft and an exciter carried by the shaft.

    摘要翻译： 一种用于燃气涡轮发动机的组件，包括附件齿轮箱，其包括驱动齿轮和机械地安装到附件齿轮箱的起动器/发电机。 起动器/发电机包括可旋转轴，由轴承载的小齿轮，由轴承载的主机，由轴承载的永磁发电机（PMG）和由轴承载的励磁机。

    WEARABLE ARTICLES WITH WETNESS SENSING
    10.
    发明申请
    WEARABLE ARTICLES WITH WETNESS SENSING 有权
    耐磨感的文具

    公开(公告)号：US20130324955A1

    公开(公告)日：2013-12-05

    申请号：US13581534

    申请日：2012-01-20

    申请人： Sun Hoi Wong ,  Fei Xu ,  Hao Huang

    发明人： Sun Hoi Wong ,  Fei Xu ,  Hao Huang

    IPC分类号： G01N27/22 ,  A61F13/42

    CPC分类号： G01N27/223 ,  A61F13/42 ,  A61F2013/424

    摘要： A wearable article for wearing by a user and comprising wetness sensing electrodes, wherein the wetness sensing electrodes are to be in contact with a wetting electrolytic liquid during normal use when the wearable article is wetted by the electrolytic liquid, and to operate as a capacitor upon application of a direct current at contact terminals of the wetness sensing electrodes when so wetted to facilitate capacitance measurement through the wetness sensing electrodes whereby wetness information of the wearable article is provided.

    摘要翻译： 一种穿戴用品，用于使用者佩戴并且包括湿度感测电极，其中当穿用物品被电解液润湿时，湿度感测电极在正常使用期间与润湿电解液接触，并且作为电容器操作 当湿润感应电极的接触端子处施加直流电以便通过湿度感测电极进行电容测量，从而提供可穿戴制品的湿度信息。