CODING IN GALOIS FIELDS WITH REDUCED COMPLEXITY

    公开(公告)号:US20170142238A1

    公开(公告)日:2017-05-18

    申请号:US15319428

    申请日:2015-06-15

    Abstract: Disclosed herein is a method of generating a coded data packet in dependence on a plurality of source data packets, the method comprising: determining a plurality of data packets, for generating a coded data packet, from a plurality of source data packets for encoding, wherein each of the plurality of source data packets for encoding comprises the same number of bits; generating a multiplied data packet in dependence on one or more multiplication operations between a multiplication value and bits of one of the determined data packets; and generating a coded data packet in dependence on a combination of the multiplied data packet and one or more of the other of said plurality of determined data packets that have not been multiplied; wherein the one or more multiplication operations are performed as operations in the finite field GF(p); p is greater than 2; the multiplication value is an element of the finite field GF(p); the multiplication value is not 0 or 1; and the combination of data packets is performed by bitwise XOR operations. Advantageously, the coding scheme can be almost as computationally efficient as GF(2) and the likelihood of obtained coded data packets being linearly independent is greatly increased.

    NETWORK CODING OVER GF(2)
    82.
    发明申请
    NETWORK CODING OVER GF(2) 有权
    GF(2)网络编码

    公开(公告)号:US20160373210A1

    公开(公告)日:2016-12-22

    申请号:US14902251

    申请日:2014-06-24

    Abstract: Disclosed herein is a method of generating an encoded data packet over GF(2). The method comprises determining 303 a plurality of data packets in dependence on a Latin rectangle, wherein the plurality of data packets have equal length; and generating 305 an encoded data packet by bitwise XORing the determined plurality of data packets. The efficiency of encoding, decoding, and transmission over a network of data packets are all improved, as well as the security properties of the transmitted information.

    Abstract translation: 本文公开了一种在GF(2)上生成编码数据分组的方法。 该方法包括:根据拉丁方框确定303多个数据分组,其中多个数据分组具有相等的长度; 以及通过对确定的多个数据分组进行按位异或来产生编码数据分组305。 通过数据包网络进行编码,解码和传输的效率都得到了改进,同时也提高了传输信息的安全性。

    USES OF OLIGOURONATES IN CANCER TREATMENT
    83.
    发明申请
    USES OF OLIGOURONATES IN CANCER TREATMENT 审中-公开
    在治疗癌症中使用奥利膦酸

    公开(公告)号:US20160346313A1

    公开(公告)日:2016-12-01

    申请号:US15107424

    申请日:2014-12-23

    Abstract: An oligouronate is used in the treatment or prevention of cancer as an anticancer agent. The oligouronate is effective against cancer itself, and as a drug delivery tool which improves or promotes the delivery of another anticancer agent, such as a chemotherapy drug or immunotherapeutic agent. Thus, the oligouronate is used in cancer prevention or treatment alone or in combination with one or more other anticancer agents.

    Abstract translation: 寡聚糖被用于治疗或预防癌症作为抗癌剂。 寡聚糖对癌症本身有效,并且作为改善或促进另一种抗癌剂如化学药物或免疫治疗剂的递送的药物递送工具。 因此,寡聚糖单独用于癌症预防或治疗或与一种或多种其它抗癌剂组合使用。

    Wave Energy Converter
    84.
    发明申请
    Wave Energy Converter 审中-公开
    波能量转换器

    公开(公告)号:US20160333846A1

    公开(公告)日:2016-11-17

    申请号:US15111659

    申请日:2015-01-16

    Abstract: A wave energy convertor for extracting energy from ocean waves. The wave energy convertor may include a buoy arranged to oscillate relative to a reference point about an equilibrium position and a negative spring device connected between the buoy and the reference point, wherein the negative spring device is for applying a positive force in the direction of displacement when the buoy moves away from the equilibrium position.

    Abstract translation: 用于从海浪中提取能量的波浪能量转换器。 波能量转换器可以包括布置成围绕平衡位置相对于参考点振荡的浮标和连接在浮标和参考点之间的负弹簧装置,其中负弹簧装置用于沿位移方向施加正力 当浮标离开平衡位置时。

    Drilling Method and Apparatus
    88.
    发明申请
    Drilling Method and Apparatus 审中-公开
    钻孔方法和装置

    公开(公告)号:US20160138390A1

    公开(公告)日:2016-05-19

    申请号:US14893537

    申请日:2014-06-06

    Abstract: A method of locating a drilling apparatus and/or a borehole in a subterranean region. The method may include the steps of transmitting seismic waves into the subterranean region during a subterranean drilling operation, the seismic waves being transmitted from a location remote from the drilling apparatus, detecting a seismic response from the drilling apparatus or borehole, and comparing the detected response with predetermined seismic survey data of the subterranean region to determine the location of the apparatus or borehole.

    Abstract translation: 一种在地下区域中定位钻井设备和/或钻孔的方法。 该方法可以包括以下步骤:在地下钻井操作期间将地震波发射到地下区域,地震波从远离钻井设备的位置传输,检测来自钻井设备或井眼的地震响应,并比较检测到的响应 利用地下区域的预定地震勘测数据来确定装置或钻孔的位置。

    Fiber Amplifier
    90.
    发明申请
    Fiber Amplifier 有权
    光纤放大器

    公开(公告)号:US20150288131A1

    公开(公告)日:2015-10-08

    申请号:US14269229

    申请日:2014-05-05

    Abstract: The present application provides an optical system. The optical system includes a fiber amplifier with an optically active doped fiber, a source of seed pulses, and a pump source. The doped fiber is doped with one or more active element(s) selected such that the seed pulses are amplified in intensity. The doped fiber has a negative (anomalous) group velocity dispersion in the region from the wavelength of the seed pulses to a threshold wavelength at which the magnitude of the optical loss of the doped fiber is greater than a gain due to stimulated Raman scattering.

    Abstract translation: 本申请提供了一种光学系统。 光学系统包括具有光学有源掺杂光纤的光纤放大器,种子脉冲源和泵浦源。 掺杂光纤掺杂有一个或多个选择的有源元件,使得种子脉冲的强度被放大。 掺杂光纤在从种子脉冲的波长到阈值波长的区域中具有负(异常)组速度色散,在阈值波长处,掺杂光纤的光损耗的大小大于由于受激拉曼散射引起的增益。

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