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    Method and apparatus for estimating frequency deviation
    71.
    发明授权
    Method and apparatus for estimating frequency deviation 有权
    用于估计频率偏差的方法和装置

    公开(公告)号：US08867443B2

    公开(公告)日：2014-10-21

    申请号：US13258448

    申请日：2010-11-17

    申请人： Ning Qiu ,  Qiang Li ,  Wenqi Zeng ,  Tiankun Yu ,  Zhongwei Liu ,  Yannan Xing ,  Lihong Liang ,  Liwen Li ,  Feng Lin ,  Jintao Chu

    发明人： Ning Qiu ,  Qiang Li ,  Wenqi Zeng ,  Tiankun Yu ,  Zhongwei Liu ,  Yannan Xing ,  Lihong Liang ,  Liwen Li ,  Feng Lin ,  Jintao Chu

    IPC分类号： H04W56/00 ,  H04B1/7087

    CPC分类号： H04B1/7087

    摘要： The invention provides a method and an apparatus for estimating frequency deviation, the method comprising: after receiving a sub-frame, transforming a downlink synchronized code of the sub-frame to a frequency domain, and performing a correlation operation between the transformed downlink synchronized code and a local frequency domain synchronized code to obtain a conjugate downlink synchronized code sequence; judging a location of a maximum value in the conjugate downlink synchronized code sequence, and calculating a frequency deviation value according to the location of the maximum value. The estimating method provided in the invention can realize a stable work with no need of a precise sampling value location, an accurate timing synchronization, or even obtaining the information for the multi-path distribution and locations.

    摘要翻译： 本发明提供了一种用于估计频偏的方法和装置，该方法包括：在接收到子帧之后，将子帧的下行同步码变换为频域，并且在经变换的下行同步码 和本地频域同步码，以获得共轭下行同步码序列; 判断所述共轭下行同步码序列中的最大值的位置，并根据所述最大值的位置来计算频率偏差值。 本发明提供的估计方法可以实现稳定的工作，不需要精确的采样值位置，精确的定时同步，甚至获得多径分布和位置的信息。

    Automated optimal workload balancing during failover in share-nothing database systems
    72.
    发明授权
    Automated optimal workload balancing during failover in share-nothing database systems 有权
    在无共享数据库系统中的故障转移期间自动优化工作负载平衡

    公开(公告)号：US08832273B1

    公开(公告)日：2014-09-09

    申请号：US13352919

    申请日：2012-01-18

    申请人： Qiang Li ,  Ron-Chung Hu ,  HanCheng Hsiung

    发明人： Qiang Li ,  Ron-Chung Hu ,  HanCheng Hsiung

    IPC分类号： G06F15/173 ,  G06F15/167

    CPC分类号： G06F9/5083

    摘要： Procedures and systems may be used for assigning data partitions to data-processing host computers, for example, to initially assign data partitions at the outset of a large data-processing job or during failover measures taken in response to a failed host in a share-nothing database management system (SN-DBMS). In one implementation, a method of managing exclusive access to a data partition within a database system assesses a first host and a second host that have exclusive access to a first and second data partition, respectively, within a database system. The method assigns exclusive access of the data partition to one of the first and second hosts based on factors that may include the processing powers of first and second the hosts, and on processing requirements (such as data quantity and data criticalness) for data on the first and second data partitions.

    摘要翻译： 程序和系统可以用于将数据分区分配给数据处理主机，例如，在大数据处理作业的开始时或在响应于共享的主机中的故障主机而采取的故障转移措施期间初始分配数据分区， 没有数据库管理系统（SN-DBMS）。 在一个实现中，管理对数据库系统内的数据分区的独占访问的方法评估在数据库系统内分别具有对第一和第二数据分区的独占访问权的第一主机和第二主机。 该方法基于可以包括第一和第二主机的处理能力的因素以及针对第一和第二主机上的数据的处理要求（例如数据量和数据危害性），将数据分区的独占访问分配给第一和第二主机之一 第一和第二数据分区。

    Synchronization method and device
    73.
    发明授权
    Synchronization method and device 有权
    同步方法和设备

    公开(公告)号：US08743911B2

    公开(公告)日：2014-06-03

    申请号：US13257920

    申请日：2010-03-25

    申请人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

    发明人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

    IPC分类号： H04J3/06

    CPC分类号： H04L27/2656 ,  H04L27/2675

    摘要： A synchronization method is disclosed, including: obtaining a synchronization symbol position {circumflex over (d)}0 of one time slot of an initial update period; taking Ntrack frames as an update period to adjust the synchronization symbol position, and the step of adjusting the synchronization symbol position including: obtaining a synchronization symbol position {circumflex over ({circumflex over (d)}k+1=dk+Ntrack{circumflex over (T)}k of a corresponding time slot of a (k+1)th update period according to a synchronization symbol position {circumflex over (d)}k of a corresponding time slot of a kth update period and an inter-frame sampling derivation estimation value {circumflex over (T)}k of said kth update period; obtaining synchronization symbol positions of other time slots in said kth update period according to the synchronization symbol position {circumflex over (d)}k of the corresponding time slot of the kth update period and the inter-frame sampling derivation estimation value {circumflex over (T)}k of said kth update period. A synchronization apparatus is also disclosed. The method and apparatus reduces synchronization calculation amount.

    摘要翻译： 公开了一种同步方法，其包括：获得初始更新周期的一个时隙的同步符号位置{（d）} 0; 将Ntrack帧作为更新周期来调整同步符号位置，以及调整同步符号位置的步骤包括：获得同步符号位置{circumflex over（{circumflex over（d）} k + 1 = dk + Ntrack {circumflex 根据第k个更新周期的对应时隙的同步符号位置{（d）} k的第（k + 1）个更新周期的相应时隙，超过（T）} k个k 根据所述第k个更新周期的采样导出估计值{（f）（k）），根据相应时隙的同步符号位置{（d）} k获得所述第k个更新周期中的其他时隙的同步符号位置 以及所述第k个更新周期的帧间采样导出估计值（在（T）} k的转换，同时还公开了同步装置，该方法和装置减少了同步计算 nt。

    LOW NOISE AMPLIFIERS FOR MULTIPLE RADIO STANDARDS
    75.
    发明申请
    LOW NOISE AMPLIFIERS FOR MULTIPLE RADIO STANDARDS 审中-公开
    低噪声放大器用于多种无线电标准

    公开(公告)号：US20140015607A1

    公开(公告)日：2014-01-16

    申请号：US13545106

    申请日：2012-07-10

    申请人： Qiang Li ,  Si-Ning Zhou

    发明人： Qiang Li ,  Si-Ning Zhou

    IPC分类号： H03F3/45

    CPC分类号： H03F1/26 ,  H03F3/211 ,  H03F3/45179 ,  H03F2200/111 ,  H03F2203/45464

    摘要： Low noise amplifiers and related control methods for multiple radio standards are disclosed. An exemplary low noise amplifier comprises input ports, an output port, amplifier stages, and a degeneration inductor. Each amplifier has a gain stage and a buffer stage connected in series. The buffer stage selectively channels an output of the gain stage to the output port or a power supply. The degeneration inductor is commonly connected to the gain stage in each of the amplifier stages.

    摘要翻译： 公开了用于多种无线电标准的低噪声放大器和相关控制方法。 示例性的低噪声放大器包括输入端口，输出端口，放大器级和退化电感器。 每个放大器具有串联连接的增益级和缓冲级。 缓冲级选择性地将增益级的输出通道输出到输出端口或电源。 退化电感器通常连接到每个放大器级中的增益级。

    PLANAR INVERTED-F ANTENNAS, AND MODULES AND SYSTEMS IN WHICH THEY ARE INCORPORATED
    76.
    发明申请
    PLANAR INVERTED-F ANTENNAS, AND MODULES AND SYSTEMS IN WHICH THEY ARE INCORPORATED 有权
    平面反相天线，以及它们被并入的模块和系统

    公开(公告)号：US20130171950A1

    公开(公告)日：2013-07-04

    申请号：US13339139

    申请日：2011-12-28

    申请人： Qiang Li ,  Jon T. Adams ,  Olin L. Hartin

    发明人： Qiang Li ,  Jon T. Adams ,  Olin L. Hartin

    IPC分类号： H01Q9/04 ,  H04B1/04

    CPC分类号： H01Q9/0421 ,  H01Q1/48

    摘要： An embodiment of an antenna includes a radiation frame and a planar inverted-F antenna (PIFA). The radiation frame has a frame shape that defines a central opening. The PIFA includes an antenna arm, a feed arm, and a shorting arm. A distal end of the shorting arm is conductively coupled with the radiation frame. The antenna may be coupled to a substrate of an RF module. The RF module may be included in a system that also includes a non-RF component that produces a signal for transmission. In such a system, the RF module is configured to receive the signal, convert the signal to an RF signal, and radiate the RF signal over an air interface.

    摘要翻译： 天线的一个实施例包括辐射框架和平面倒F天线（PIFA）。 辐射框架具有限定中心开口的框架形状。 PIFA包括天线臂，馈电臂和短路臂。 短路臂的远端与辐射框架导电耦合。 天线可以耦合到RF模块的衬底。 RF模块可以包括在还包括产生用于传输的信号的非RF分量的系统中。 在这种系统中，RF模块被配置为接收信号，将信号转换成RF信号，并通过空中接口辐射RF信号。

    Method for forming a toroidal inductor in a semiconductor substrate
    78.
    发明授权
    Method for forming a toroidal inductor in a semiconductor substrate 有权
    在半导体衬底中形成环形电感器的方法

    公开(公告)号：US08354325B1

    公开(公告)日：2013-01-15

    申请号：US13171989

    申请日：2011-06-29

    申请人： Thuy B. Dao ,  Qiang Li ,  Melvy F. Miller

    发明人： Thuy B. Dao ,  Qiang Li ,  Melvy F. Miller

    IPC分类号： H01L21/8234

    CPC分类号： H01L28/10

    摘要： A toroidal inductor formed in a semiconductor substrate. Through-silicon vias are used to connect metal layers formed on top and bottom surfaces of the semiconductor substrate. In one embodiment, the vias are elongated and laid out in two concentric circles, an inner circle enclosed by an outer circle. The vias of the outer concentric circle are longer than the vias of the inner circle so that spaces between vias are the same for both circles. In another embodiment, each elongated via may include a plurality of circular vias formed in a line. Metals layers on the top and bottom of the semiconductor substrate are patterned to form wedge shaped connectors between the inner and outer vias to form the spirals of the toroidal inductor. The wedge shaped connectors with elongated vias allow spacing between spirals to be constant.

    摘要翻译： 形成在半导体衬底中的环形电感器。 通孔通孔用于连接形成在半导体衬底的顶表面和底表面上的金属层。 在一个实施例中，通孔是细长的并布置在两个同心圆中，内圆由外圆包围。 外部同心圆的通孔比内圆的通孔长，使得两个通孔之间的通孔相同。 在另一个实施例中，每个细长通孔可以包括以一条线形成的多个圆形通孔。 在半导体衬底的顶部和底部上的金属层被图案化以在内部和外部过孔之间形成楔形连接器，以形成环形电感器的螺旋形。 具有细长通孔的楔形连接器允许螺旋之间的间隔恒定。

    Configurable clock signal generator
    80.
    发明授权
    Configurable clock signal generator 有权
    可配置时钟信号发生器

    公开(公告)号：US08183905B2

    公开(公告)日：2012-05-22

    申请号：US12539495

    申请日：2009-08-11

    申请人： Yuyu Chang ,  Qiang Li ,  John Leete ,  Hooman Darabi ,  Yiannis Kokolakis

    发明人： Yuyu Chang ,  Qiang Li ,  John Leete ,  Hooman Darabi ,  Yiannis Kokolakis

    IPC分类号： G06F1/04 ,  H03K3/00

    CPC分类号： H03L1/00 ,  H03B5/368

    摘要： A method to provide a low-power clock signal or a low-noise clock signal is described herein. It is determined whether a low-power mode or a low-noise mode is in use. A voltage reference input of a low-dropout voltage regulator (LDO) is switched to a low-power voltage reference for low-power mode and to a low-noise voltage reference for low-noise mode. The LDO provides a constant voltage output to a crystal oscillator. A clock signal is generated using the crystal oscillator. The clock signal is limited using a low-power limiter to generate a low-power output clock signal and/or is limited using a low-noise limiter to generate a low-noise clock signal. The low-power output clock signal or the low-noise output clock signal is selected using a mux.

    摘要翻译： 本文描述了提供低功率时钟信号或低噪声时钟信号的方法。 确定是否使用低功率模式或低噪声模式。 低压差稳压器（LDO）的基准输入电压切换为低功耗模式的低功耗电压基准电压，低噪声电压基准输入低噪声电压基准电压。 LDO为晶体振荡器提供恒定电压输出。 使用晶体振荡器产生时钟信号。 使用低功率限幅器来限制时钟信号以产生低功率输出时钟信号和/或使用低噪声限制器来限制以产生低噪声时钟信号。 使用多路复用器选择低功耗输出时钟信号或低噪声输出时钟信号。