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    Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks
    171.
    发明授权
    Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks 有权
    宽带正交频分多址/空分多址网络中的信道分配

    公开(公告)号：US06870808B1

    公开(公告)日：2005-03-22

    申请号：US09692681

    申请日：2000-10-18

    Applicant: Hui Liu ,  Hujun Yin ,  Xiaodong Li ,  Fuqi Mu

    Inventor： Hui Liu ,  Hujun Yin ,  Xiaodong Li ,  Fuqi Mu

    IPC: H04B7/005 ,  H04L5/02 ,  H04W52/50 ,  H04J11/00 ,  H04B7/208

    CPC classification number: H04W52/50 ,  H04L5/023 ,  H04W72/0453

    Abstract: A network is described. In one embodiment, the network comprises multiple subscriber units to communicate with the base station using an orthogonal frequency-division multiple-access (OFDMA) protocol, and a base station. The base-station includes a memory unit to store broadband spatial signature vectors associated with each subscriber and traffic channel allocation logic. The vectors are a function of frequency. The traffic channel allocation logic allocates OFDMA channels using the broadband spatial signature vectors of the subscribers.

    Abstract translation: 描述网络。 在一个实施例中，网络包括使用正交频分多址（OFDMA）协议和基站与基站进行通信的多个用户单元。 基站包括存储单元，用于存储与每个用户相关联的宽带空间签名向量和业务信道分配逻辑。 向量是频率的函数。 业务信道分配逻辑使用订户的宽带空间签名向量来分配OFDMA信道。

    Method and device for improving the energy efficiency performance of a reader
    175.
    发明授权
    Method and device for improving the energy efficiency performance of a reader 有权
    提高阅读器能效性能的方法和装置

    公开(公告)号：US09443120B2

    公开(公告)日：2016-09-13

    申请号：US14003251

    申请日：2011-08-24

    Applicant: Tao Xue ,  Hui Liu ,  Junchao Du ,  Shujun Liu ,  Jiangkun Guo ,  Qingzhe Deng ,  Chuanyi Liu ,  Wen He ,  Xuan Li

    Inventor： Tao Xue ,  Hui Liu ,  Junchao Du ,  Shujun Liu ,  Jiangkun Guo ,  Qingzhe Deng ,  Chuanyi Liu ,  Wen He ,  Xuan Li

    IPC: H04Q5/22 ,  G06K7/10

    CPC classification number: G06K7/10207

    Abstract: A method for improving energy efficiency performance of a reader is disclosed in the present document. The method includes: initializing and adjusting operation parameters, and acquiring the current number of frame timeslots; updating a frame timeslot status, and determining that a power level is not required to be increased according to the updated frame timeslot status; and estimating the number of labels according to the current number of frame timeslots, and acquiring an optimum Q value according to the number of labels. A device for improving energy efficiency performance of a reader is also disclosed in the present document. With the method and device of the present document, throughput of a Radio Frequency Identification (RFID) system is maximized, thereby reducing energy consumption of the system and extending usage time of the system; and while the energy consumption is reduced, a rate at which the reader reads the labels is guaranteed.

    Abstract translation: 在本文中公开了一种用于提高读取器的能量效率性能的方法。 该方法包括：初始化和调整操作参数，并获取当前帧帧数; 更新帧时隙状态，并且根据所更新的帧时隙状态确定不需要增加功率电平; 并根据当前帧数的时隙估计标签的数量，并根据标签的数量获得最佳的Q值。 本文件还公开了一种用于提高读取器的能量效率性能的装置。 利用本文的方法和装置，射频识别（RFID）系统的吞吐量最大化，从而降低系统的能量消耗并延长系统的使用时间; 并且在能量消耗减少的同时，读取读取标签的速率得到保证。

    Distributed storage and sharing of data packets in hybrid networks
    177.
    发明授权
    Distributed storage and sharing of data packets in hybrid networks 有权
    混合网络中数据包的分布式存储和共享

    公开(公告)号：US09215568B2

    公开(公告)日：2015-12-15

    申请号：US13457135

    申请日：2012-04-26

    Applicant: Hui Liu

    Inventor： Hui Liu

    IPC: H04L12/26 ,  H04W4/06 ,  H04W76/00

    CPC classification number: H04W4/06 ,  H04W76/40

    Abstract: Systems and methods provide distributed storage and sharing of data packets in hybrid networks to enable user devices (e.g., mobile terminals) to cooperate to recover lost data packets. According to embodiments, a centralized system operable to provide data transmission may optimize broadcast resources by adjusting redundancy in data packet transmission to enable a desired or a predetermined percentage of user devices to either successfully receive transmitted data packets using transmitted redundancies or to recover lost data packets relying on the distributed storage and sharing scheme.

    Abstract translation: 系统和方法在混合网络中提供数据分组的分布式存储和共享，以使得用户设备（例如，移动终端）协作以恢复丢失的数据分组。 根据实施例，可操作以提供数据传输的集中式系统可以通过调整数据分组传输中的冗余来优化广播资源，以使得期望或预定百分比的用户设备能够使用传输的冗余成功地接收传输的数据分组，或者恢复丢失的数据分组 依靠分布式存储和共享方案。

    Method for dynamic authentication between reader and tag, and device therefor
    178.
    发明授权
    Method for dynamic authentication between reader and tag, and device therefor 有权
    读取器与标签之间的动态认证方法及其设备

    公开(公告)号：US09171191B2

    公开(公告)日：2015-10-27

    申请号：US13985558

    申请日：2011-09-01

    Applicant: Tao Xue ,  Junzhao Du ,  Hui Liu ,  Shujun Liu ,  Wen He ,  Wenjing Chen ,  Jiangkun Guo ,  Qingzhe Deng ,  Chuanyi Liu

    Inventor： Tao Xue ,  Junzhao Du ,  Hui Liu ,  Shujun Liu ,  Wen He ,  Wenjing Chen ,  Jiangkun Guo ,  Qingzhe Deng ,  Chuanyi Liu

    IPC: G06K7/10 ,  G06F21/31 ,  H04L9/32

    CPC classification number: G06K7/10366 ,  G06F21/31 ,  H04L9/3239 ,  H04L9/3273 ,  H04L2209/38 ,  H04L2209/805

    Abstract: The present disclosure discloses a method for dynamic authentication between a reader and a tag, and an implementing device therefor, to solve the technical problem of necessity of dependence of a traditional authentication method on a real-time, online, reliable and secure connection with a background database, as well as lack of ways for highly autonomous authentication of a tag by a reader. In the present disclosure, only a legitimate reader can obtain corresponding tag authentication information from an authentication database and authenticate or update a corresponding tag status; only a legitimate tag can be processed by the legitimate reader; during the authentication, a dynamic updating mechanism is used for a tag ID which ensures forward security; the reader stores tag information using a hash table and thus increases an authentication speed; data synchronization is achieved cleverly by ways of a counting value. The use of a random number guarantees that a different data packet is used for every authentication, thus hiding tag position information effectively and offering excellent security.

    Abstract translation: 本公开公开了一种用于读取器和标签之间的动态认证的方法及其实现装置，以解决传统认证方法与实时，在线，可靠和安全的连接的依赖性的技术问题， 后台数据库，以及缺乏阅读器对标签进行高度自动认证的方法。 在本公开中，只有合法的读取器才能从认证数据库获得相应的标签认证信息，并对相应的标签状态进行认证或更新; 合法读者只能处理合法的标签; 在认证期间，使用动态更新机制来确保前向安全性的标签ID; 读取器使用散列表存储标签信息，从而增加认证速度; 通过计数值的方式巧妙地实现数据同步。 使用随机数保证每个认证使用不同的数据包，从而有效地隐藏标签位置信息，提供出色的安全性。

    Transceiver power distribution network
    180.
    发明授权
    Transceiver power distribution network 有权
    收发机配电网络

    公开(公告)号：US08866024B1

    公开(公告)日：2014-10-21

    申请号：US13531217

    申请日：2012-06-22

    Applicant: Hui Liu ,  Zhe Li

    Inventor： Hui Liu ,  Zhe Li

    IPC: H05K1/03 ,  H05K1/09 ,  H05K1/11

    CPC classification number: H05K1/115 ,  H01L23/147 ,  H01L23/49811 ,  H01L23/49827 ,  H01L23/49838 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2924/00014 ,  H01L2224/13099 ,  H01L2224/0401

    Abstract: A power distribution network comprises an interposer and a package substrate, each of which has a major upper surface and a major lower surface substantially parallel to the upper surface. A single copper island is formed on the lower surface of the interposer opposite and substantially co-extensive with a single copper island formed on the upper surface of the package substrate. A plurality of leads extend from the copper island on the lower surface of the interposer, each lead coupling to a different silicon through via that extends through the interposer to the upper surface of the interposer. This structure has significant improvements in performance and cost over prior art structures.

    Abstract translation: 配电网络包括插入器和封装衬底，每个衬底具有基本上平行于上表面的主上表面和主下表面。 在插入器的下表面上形成一个单一的铜岛，与形成在封装衬底的上表面上的单个铜岛相反并基本上共同扩展。 多个引线从插入器的下表面上的铜岛延伸，每个引线耦合到穿过插入件延伸到插入器的上表面的不同硅通孔。 与现有技术结构相比，该结构在性能和成本方面具有显着的改进。

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