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    • 52. 发明授权
    • Stable cold field emission electron source
    • 稳定的冷场发射电子源
    • US08736170B1
    • 2014-05-27
    • US13032488
    • 2011-02-22
    • Kun LiuGregory A. Schwind
    • Kun LiuGregory A. Schwind
    • H01J25/50H01J23/06
    • H01J23/06H01J37/063H01J37/073H01J2237/022
    • A cold field emission (CFE) electron source for a focused electron beam system such as a transmission electron microscope (TEM), scanning transmission electron microscope (STEM), or scanning electron microscope (SEM) is disclosed. The source employs an emitter enclosure electrode behind the CFE tip which, in conjunction with the extractor electrode, defines a closed volume that can be thoroughly cleaned by electron impact desorption (EID) and radiative heating from a heated filament located between the emitter enclosure electrode and extractor electrode. The extractor electrode may have a counterbore which restricts backscattered electrons generated at the extractor from reaching portions of the source and gun which have not been cleaned by EID. Pre-cleaning of the emitter enclosure electrode and extractor electrode prior to cold field emission substantially improves both source emission stability and frequency noise characteristics, enabling source operation over time intervals adequate for application to TEMs, STEMs, and SEMs.
    • 公开了透射电子显微镜(TEM),扫描透射电子显微镜(STEM)或扫描电子显微镜(SEM)等聚焦电子束系的冷场发射(CFE)电子源。 该源在CFE尖端之后采用发射器外壳电极,其与提取器电极结合,限定可通过电子轰击解吸(EID)彻底清洁的封闭体积,以及位于发射体外壳电极和 提取电极。 提取器电极可以具有沉孔,其限制在提取器处产生的反向散射电子到达未被EID清洁的源和枪的部分。 在冷场发射之前预先清洁发射器外壳电极和提取器电极大大改善了源发射稳定性和频率噪声特性,从而能够实现源于在适用于TEM,STEM和SEM的时间间隔的源操作。
    • 54. 发明申请
    • MULTIPLE INPUT MULTIPLE OUTPUT AND BEAM-FORMING DATA TRANSMISSION METHOD AND DEVICE
    • 多输入多输出和波束形成数据传输方法和设备
    • US20120287981A1
    • 2012-11-15
    • US13496276
    • 2010-01-27
    • Huahua XiaoDengkui ZhuZhaohua LuKun LiuWanshuai Zhang
    • Huahua XiaoDengkui ZhuZhaohua LuKun LiuWanshuai Zhang
    • H04L27/00H04B17/00
    • H04B7/0626H04B7/0417H04B7/0469H04B7/0617
    • The present invention provides a method and system for transmitting Multiple Input Multiple Output (MIMO) beam forming data. The method comprises: performing MIMO coding on data streams to obtain the coded data streams; obtaining weight values W=(Wi,j)Tx×S for beam forming of an antenna array of Tx×S of a transmitting end based on channel information from the antenna array of the transmitting end to antennas of a receiving end, where Tx is the number of transmitting antennas of the transmitting end, S is the number of the MIMO-coded data streams, and S≦Tx; and weighting the coded data streams with the weight values W=(Wi,j)Tx×S for beam forming, and transmitting the weighted data streams by corresponding antennas, where the data transmitted by antenna i is superposed data Σj=1SWi,jxj, i=1, . . . , Tx, j=1, . . . , S, and xj is jth coded data stream.
    • 本发明提供了一种用于发送多输入多输出(MIMO)波束形成数据的方法和系统。 该方法包括:对数据流执行MIMO编码以获得编码数据流; 基于从发送端的天线阵列到接收端的天线的信道信息获得发送端的Tx×S的天线阵列的波束形成的权重值W =(Wi,j)Tx×S,其中Tx是 发送端的发送天线的数量,S是MIMO编码数据流的数量,S≦̸ Tx; 并用权重值W =(Wi,j)Tx×S对波束形成进行加权,并且通过对应的天线发送加权的数据流,其中由天线i发送的数据是叠加的数据&Sgr; j = 1SWi, jxj,i = 1,。 。 。 ,Tx,j = 1,...。 。 。 ,S和xj是第j个编码数据流。
    • 55. 发明申请
    • SYSTEM FOR PROVIDING INCENTIVES FOR REFERRING ADVERTISEMENTS AND DEALS
    • 提供引用广告和优惠奖励的制度
    • US20120221387A1
    • 2012-08-30
    • US13034342
    • 2011-02-24
    • Kun LiuAbraham BagherjeiranVijay K. NarayananRajen SubbaLei Tang
    • Kun LiuAbraham BagherjeiranVijay K. NarayananRajen SubbaLei Tang
    • G06Q30/00
    • G06Q30/0269G06Q50/01
    • A system for incentivizing sharing advertisements (“ads”) and associated deals with others includes a processor programmed to transmit to a user, for display in an application window of a communication device of a user, an advertisement and an associated deal with an economic incentive for sharing the advertisement with first persons in a social network of the user. The system tracks and stores referral activity by the first persons in the social network of the user in relation to the advertisement, the referral activity including the first persons sharing the advertisement with second persons. The system tracks and stores conversion activity such as purchasing by the first persons in the social network of the user in relation to the deal and purchasing by second persons referred by the first persons. The system delivers the economic incentive to the user for sharing with the first persons; for the first and second persons who share the advertisement; and/or for the first and second persons who convert the deal.
    • 用于激励共享广告(“广告”)和与他人相关联的交易的系统包括被编程为传送给用户的处理器,用于在用户的通信设备的应用窗口中显示广告和与经济激励相关联的交易 用于在用户的社交网络中与第一人共享广告。 该系统跟踪和存储用户社交网络中与广告有关的第一人员的转介活动,转介活动包括与第二人共享广告的第一人。 系统跟踪和存储转换活动,例如第一人员在用户的社会网络中购买有关交易并由第一人员提及的第二人购买。 系统向用户提供经济激励,与第一人员共享; 分享广告的第一和第二人; 和/或转换交易的第一和第二人。
    • 59. 发明申请
    • Method for Sending and Receiving Signaling in a Multiple Carrier Frequency Communication System
    • 在多载波频率通信系统中发送和接收信令的方法
    • US20110075647A1
    • 2011-03-31
    • US12993601
    • 2008-12-30
    • Kun LiuZhaohua LuYing Liu
    • Kun LiuZhaohua LuYing Liu
    • H04W4/00
    • H04W72/042H04L5/001H04L5/0048H04L5/0053H04L5/0094H04L27/2601Y02D70/00
    • The present invention discloses a method for sending signaling and a method for receiving signaling in a multiple carrier frequency communication system. The method for sending signaling comprises: a base station sends control signaling on a primary carrier frequency corresponding to a terminal; the control signaling carries the indication information for indicating the part of control signaling which needs to be decoded of a secondary carrier frequency. The primary carrier frequency is a carrier frequency resource that the terminal must decode all the control signaling. The secondary carrier frequency is a carrier frequency resource on which the terminal can operate determined by the control signaling on the primary carrier frequency of the terminal, and whether the part of the control signaling of the secondary carrier frequency needs to be decoded is indicated by the control signaling of the primary carrier frequency.
    • 本发明公开了一种用于在多载频通信系统中发送信令的方法和用于接收信令的方法。 发送信令的方法包括:基站在与终端对应的主载波上发送控制信令; 控制信令携带用于指示需要对辅载波频率进行解码的控制信令的一部分的指示信息。 主载波频率是终端必须解码所有控制信令的载波频率资源。 次载波频率是终端可以通过终端的主载波上的控制信令确定的载波频率资源,以及辅载波频率的控制信令的一部分是否需要解码,由 控制主载波信号的信号。