利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

88 条记录 (耗时 0.062 秒)

    WIRELESS DATA TRANSMISSION INCLUDING ASSIST SIGNALS
    43.
    发明申请
    WIRELESS DATA TRANSMISSION INCLUDING ASSIST SIGNALS 有权
    无线数据传输，包括辅助信号

    公开(公告)号：US20130079045A1

    公开(公告)日：2013-03-28

    申请号：US13622145

    申请日：2012-09-18

    申请人： Liangping Ma ,  Weimin Liu ,  Ariela Zeira ,  Robert A. DiFazio

    发明人： Liangping Ma ,  Weimin Liu ,  Ariela Zeira ,  Robert A. DiFazio

    IPC分类号： H04W72/04

    CPC分类号： H04B7/0617 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/086 ,  H04W16/14 ,  H04W52/16

    摘要： Methods, systems and apparatuses for dynamic spectrum access by both primary users (PUs) and secondary users (SUs) are disclosed. In one embodiment, a method for communicating over a channel may include obtaining, at a secondary transmitter, first and second signals intended for a primary receiver and secondary receivers, respectively; generating, at the secondary transmitter, an assist signal based, at least in part, on the obtained first signal; generating, at the secondary transmitter, a data signal based, at least in part, on the obtained second signal; determining, at the secondary transmitter, a power split ratio between the data signal and the assist signal based, at least in part, on any of a power and a signal-to-noise ratio of the first signal; and generating, at the secondary transmitter, a third signal comprising (i) the data signal and (ii) the assist signal in accordance with power split ratio.

    摘要翻译： 公开了主要用户（PU）和次要用户（SU）的动态频谱接入的方法，系统和装置。 在一个实施例中，用于通过信道进行通信的方法可以包括在次发射机处分别获得用于主接收机和辅助接收机的第一和第二信号; 至少部分地基于所获得的第一信号，在辅助发射机处产生辅助信号; 至少部分地基于所获得的第二信号在二次发射机处产生数据信号; 至少部分地基于所述第一信号的功率和信噪比来确定所述辅助发射机在所述数据信号和所述辅助信号之间的功率分配比; 以及在次发射机处产生包括（i）数据信号和（ii）根据功率分配比的辅助信号的第三信号。

    System and method for data mining and security policy management
    44.
    发明授权
    System and method for data mining and security policy management 有权
    数据挖掘和安全策略管理的系统和方法

    公开(公告)号：US08205242B2

    公开(公告)日：2012-06-19

    申请号：US12171232

    申请日：2008-07-10

    申请人： Weimin Liu

    发明人： Weimin Liu

    IPC分类号： G06F17/00

    CPC分类号： H04L63/20

    摘要： A system and method to generate and maintain controlled growth DAG are described. The controlled growth DAG conveys information about objects captured by a capture system.

    摘要翻译： 描述了生成和维持受控生长DAG的系统和方法。 受控增长的DAG传达关于捕获系统捕获的物体的信息。

    HRPD network access authentication method based on cave algorithm
    45.
    发明授权
    HRPD network access authentication method based on cave algorithm 有权
    基于洞穴算法的HRPD网络接入认证方法

    公开(公告)号：US07990930B2

    公开(公告)日：2011-08-02

    申请号：US12421986

    申请日：2009-04-10

    申请人： Weimin Liu

    发明人： Weimin Liu

    IPC分类号： H04B7/216

    CPC分类号： H04W12/08 ,  H04L63/0428 ,  H04L63/08 ,  H04L63/0853 ,  H04W12/06

    摘要： A HRPD network access authentication method based on CAVE algorithm is provided. An AT (Access Terminal) generates a random number “RAND” necessary for a calculation of an AUTH1 by using a “Random text” included in the CHAP Challenge message. A UIM (User Identity Module) card works out the AUTH1 by using the random number “RAND” and an SSD_A (Shared Secret Data A) in the UIM card. The AT carries the AUTH1 in a Result field of the CHAP Response message. An AN-AAA (Access Network-Authentication, Authorization, and Accounting) generates the random number “RAND” necessary for the calculation of an AUTH2 by using a “Random text” included in a Radius Access Request message. The AN-AAA works out the AUTH2 by using the random number “RAND”. The two results AUTH1 and AUTH2 are compared. If the results are the same, the authentication on the AT passes. Otherwise, AT access is rejected.

    摘要翻译： 提供了基于CAVE算法的HRPD网络访问认证方法。 AT（接入终端）通过使用CHAP挑战消息中包含的“随机文本”生成AUTH1的计算所需的随机数“RAND”。 UIM（用户识别模块）卡通过在UIM卡中使用随机数“RAND”和一个SSD_A（共享秘密数据A）来处理AUTH1。 AT在CHAP响应消息的结果字段中携带AUTH1。 AN-AAA（接入网络认证，授权和计费）通过使用包含在Radius接入请求消息中的“随机文本”生成AUTH2计算所需的随机数“RAND”。 AN-AAA通过使用随机数“RAND”来编写AUTH2。 比较两个结果AUTH1和AUTH2。 如果结果相同，AT上的认证通过。 否则AT访问被拒绝。

    Process for producing copper nanoparticles
    47.
    发明申请
    Process for producing copper nanoparticles 有权
    生产铜纳米粒子的方法

    公开(公告)号：US20060053972A1

    公开(公告)日：2006-03-16

    申请号：US10997220

    申请日：2004-11-23

    申请人： Weimin Liu ,  Xiaobo Wang ,  Singgou Fu

    发明人： Weimin Liu ,  Xiaobo Wang ,  Singgou Fu

    IPC分类号： B22F9/24

    CPC分类号： B22F1/0022 ,  B22F9/24 ,  B22F2998/00 ,  B82Y30/00 ,  C10M125/04 ,  C10M2201/05 ,  C10N2210/01 ,  C10N2220/08 ,  C10N2220/082 ,  Y10S977/896

    摘要： The present invention provides a process for producing copper nanoparticles, comprising steps of: a) reacting an aqueous solution containing a reductant with an aqueous solution of a copper salt while stirring for 1-8 min, wherein the reductant being one or more selected from a group consisting of hydrazine hydrate, sodium borohydride and sodium hypophosphite; b) adding an apolar organic solution containing the extracting agent and continuing the stirring for 0.5-1.5 hrs, said extracting agent being one or more selected from the group consisting of alkyl dithiocarbonic acid and salts thereof, O,O′-dialkyl dithiophosphoric acid and salts thereof, and dialkylamino dithioformic acid and salts and said apolar organic solution being one selected from the group consisting of benzene, toluene and straight or branched alkanes having 6-12 carbon atoms, wherein the alkyl having 6-20 carbon atoms; and c) post-treating the reaction product to obtain copper nanoparticles.

    摘要翻译： 本发明提供一种生产铜纳米颗粒的方法，包括以下步骤：a）在搅拌1-8分钟的同时使含有还原剂的水溶液与铜盐水溶液反应，其中还原剂是选自以下的一种或多种： 由水合肼，硼氢化钠和次磷酸钠组成的组; b）加入含有提取剂的非极性有机溶液并继续搅拌0.5-1.5小时，所述提取剂是选自烷基二硫代碳酸及其盐，O，O-二烷基二硫代磷酸和 其盐和二烷基氨基二硫代甲酸及其盐，所述非极性有机溶液选自苯，甲苯和具有6-12个碳原子的直链或支链烷烃，其中具有6-20个碳原子的烷基; 和c）后处理反应产物以获得铜纳米颗粒。