TOPICS IN RELEVANCE RANKING MODEL FOR WEB SEARCH
    81.
    发明申请
    TOPICS IN RELEVANCE RANKING MODEL FOR WEB SEARCH 有权
    用于网络搜索的相关排名模式的主题

    公开(公告)号:US20120030200A1

    公开(公告)日:2012-02-02

    申请号:US13271638

    申请日:2011-10-12

    申请人: Qing Yu Jun Xu Hang Li

    发明人: Qing Yu Jun Xu Hang Li

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30864

    摘要: Described is a technology by which topics corresponding to web pages are used in relevance ranking of those pages. Topics are extracted from each web page of a set of web pages that are found via a query. For example, text such as nouns may be extracted from the title, anchor texts and URL of a page, and used as the topics. The extracted topics from a page are used to compute a relevance score for that page based on an evaluation of that page's topics against the query. The pages are then ranked relative to one another based at least in part on the relevance score computed for each page, such as by determining a matching level for each page, ranking pages by each level, and ranking pages within each level. Also described is training a model to perform the relevance scoring and/or ranking.

    摘要翻译: 描述了一种技术,通过该技术将与网页相对应的主题用于那些页面的相关性排名。 从通过查询找到的一组网页的每个网页中提取主题。 例如,可以从标题,锚文本和页面的URL中提取诸如名词的文本,并且用作主题。 从页面提取的主题用于根据对该页面的主题对查询的评估来计算该页面的相关性分数。 这些页面至少部分地基于针对每个页面计算的相关性分数相对于彼此进行排名,例如通过确定每个页面的匹配级别,按各级别排序页面以及在每个级别内对页面进行排序。 还描述了训练模型以执行相关性评分和/或排名。

    Constellation Mapping Method
    82.
    发明申请
    Constellation Mapping Method 有权
    星座映射方法

    公开(公告)号:US20120020435A1

    公开(公告)日:2012-01-26

    申请号:US13202929

    申请日:2009-07-03

    IPC分类号: H04L27/36

    摘要: The present invention provides a constellation mapping method, and the method includes: flipping a plurality of bits in each modulation symbol unit to be mapped in part of or all of modulation symbol units to be mapped of a bit sequence to be mapped; and mapping each flipped modulation symbol unit to be mapped as a modulation symbol in a constellation. By means of the present invention, the phenomenon that consecutive bits have the same reliability can be effectively avoided by changing unevenness of reliability distribution of the consecutive bits, and at the same time, the link performance can be improved.

    摘要翻译: 本发明提供一种星座映射方法,该方法包括:在要映射的比特序列映射的调制符号单元的一部分或全部中,对每个调制符号单元中的多个比特进行翻转, 并映射要映射成星座图中的调制符号的每个翻转的调制符号单元。 通过本发明,可以通过改变连续位的可靠性分布的不均匀性来有效地避免连续位具有相同可靠性的现象,同时可提高链路性能。

    Tensor product codes containing an iterative code
    84.
    发明授权
    Tensor product codes containing an iterative code 有权
    包含迭代代码的产品代码

    公开(公告)号:US07861131B1

    公开(公告)日:2010-12-28

    申请号:US11449066

    申请日:2006-06-07

    IPC分类号: H03M13/00

    摘要: Systems and methods are provided for encoding a stream of datawords based on a tensor product code to provide a stream of codewords, and detecting and decoding a stream of received data based on a tensor product code to provide a decoded stream of data. In one aspect, the tensor product code is based on two codes including an inner code and an outer parity hiding code, where the outer parity hiding code is an iterative code. In certain embodiments, the outer parity hiding code is a Turbo code or a low density parity check (LDPC) code.

    摘要翻译: 提供了系统和方法,用于基于张量产品代码来编码数据词流,以提供码字流,并且基于张量产品代码检测和解码接收到的数据流,以提供经解码的数据流。 在一个方面,张量乘积代码基于两个代码,包括内部代码和外部奇偶校验隐藏代码,其中外部奇偶校验隐藏代码是迭代代码。 在某些实施例中,外部奇偶校验隐藏代码是Turbo码或低密度奇偶校验(LDPC)码。

    Coding method, coding device, decoding method and decoding device for low density generator matrix code
    85.
    发明申请
    Coding method, coding device, decoding method and decoding device for low density generator matrix code 有权
    编码方法,编码装置,低密度发生器矩阵码的解码方法和解码装置

    公开(公告)号:US20100257427A1

    公开(公告)日:2010-10-07

    申请号:US12746181

    申请日:2008-02-21

    IPC分类号: H03M13/05 G06F11/10

    摘要: The present invention discloses a coding method, a coding device, a decoding method and a decoding device for low density generator matrix codes. Wherein the coding method includes: constructing the mother code set of the low density generator matrix code using P low density generator matrix codes of different code lengths at a code rate R0, wherein the mother code set of the low density generator matrix code has a uniform basic matrix Gbuniform, R 0 = k b n b , where kb is the row number of the basic matrix and nb is the column number of the basic matrix; obtaining the length L of an intermediate variable according to the relationship between the length K of the information bit sequence to be coded in the mother code set of the low density generator matrix code and the length L of the intermediate variable; obtaining an expansion factor zk for processing the basic matrix using the length L of the intermediate variable and the row number kb of the basic matrix, and obtaining a generator matrix Gldgc, by modifying and expanding the basic matrix using the expansion factor zk; and coding the information bit sequence to be coded using a matrix Gldgc(1:L,1:N+L−K) comprised of L rows and the first N+L−K columns of the generator matrix.

    摘要翻译: 本发明公开了一种用于低密度发生器矩阵码的编码方法,编码装置,解码方法和解码装置。 其编码方法包括:以码率R0,利用不同码长的P个低密度发生器矩阵码构造低密度发生器矩阵码的母码组,其中低密度发生器矩阵码的母码组具有均匀 基本矩阵Gbuniform,R 0 = kbnb,其中kb是基本矩阵的行号,nb是基本矩阵的列数; 根据低密度发生器矩阵码的母码组中的要编码的信息比特序列的长度K与中间变量的长度L之间的关系,获得中间变量的长度L; 通过使用中间变量的长度L和基本矩阵的行数kb来获得用于处理基本矩阵的扩展因子zk,并且通过使用扩展因子zk修改和扩展基本矩阵来获得生成矩阵Gldgc; 并使用由L行构成的矩阵Gldgc(1:L,1:N + L-K)对发生器矩阵的第一N + L-K列进行编码的信息位序列进行编码。

    METHOD AND SYSTEM FOR PROVIDING TIMING AND FREQUENCY SYNCHRONIZATION FOR SATELLITE DIVERSITY
    87.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING TIMING AND FREQUENCY SYNCHRONIZATION FOR SATELLITE DIVERSITY 审中-公开
    为卫星多样性提供时序和频率同步的方法与系统

    公开(公告)号:US20100195564A1

    公开(公告)日:2010-08-05

    申请号:US12626372

    申请日:2009-11-25

    IPC分类号: H04J3/08

    CPC分类号: H04B7/18513

    摘要: An approach facilitates synchronization by providing: (i) a method to analyze the two-satellite synchronization problem in time-frequency domain; and (ii) a two-stage estimation method to accomplish timing and frequency synchronization. The embodiment facilitates satellite diversity. The embodiment applies to a system involving two or more geosynchronous satellites.

    摘要翻译: 一种方法通过提供以下方式来促进同步:(i)分析时频域中的双卫星同步问题的方法; 和(ii)完成定时和频率同步的两级估计方法。 该实施例有助于卫星分集。 该实施例适用于涉及两个或更多个地球同步卫星的系统。

    System and method for controlling radio frequency transmissions from an electronic device
    89.
    发明授权
    System and method for controlling radio frequency transmissions from an electronic device 有权
    用于控制来自电子设备的射频传输的系统和方法

    公开(公告)号:US07724084B2

    公开(公告)日:2010-05-25

    申请号:US11627115

    申请日:2007-01-25

    IPC分类号: H03F1/00 H03F3/04

    摘要: The invention relates to a system and method for attenuating harmonics in output signals. In the system, an electronic circuit for reducing harmonics of an output signal from a power amplifier in a transmission circuit for a wireless communication device is provided. The circuit comprises: a printed circuit board (PCB); a power amplifier for generating an output signal; and a circuit implemented on the PCB connected to an output terminal of the power amplifier for the output signal. The circuit comprises a first filtering stage; a delay element; and a harmonic filter. The delay element is located between the harmonic filter and the output terminal and the delay element provides a timing delay in the output signal through at least one 0 ohm-rated component. Also, the harmonic filter is a low pass filter having a frequency cut-off point that attenuates first order harmonics of the output signal.

    摘要翻译: 本发明涉及用于衰减输出信号中的谐波的系统和方法。 在该系统中,提供了用于降低无线通信装置的发送电路中的来自功率放大器的输出信号的谐波的电子电路。 该电路包括:印刷电路板(PCB); 用于产生输出信号的功率放大器; 以及在PCB上实现的电路,连接到功率放大器的输出端用于输出信号。 该电路包括第一滤波级; 延迟元件 和谐波滤波器。 延迟元件位于谐波滤波器和输出端子之间,延迟元件通过至少一个0欧姆额定分量在输出信号中提供定时延迟。 此外,谐波滤波器是具有衰减输出信号的一阶谐波的频率截止点的低通滤波器。

    METHOD AND ARCHITECTURE FOR PROVIDING HIGH BANDWIDTH BROADBAND COMMUNICATION TO FAST MOVING USERS
    90.
    发明申请
    METHOD AND ARCHITECTURE FOR PROVIDING HIGH BANDWIDTH BROADBAND COMMUNICATION TO FAST MOVING USERS 有权
    为快速移动用户提供高带宽宽带通信的方法和架构

    公开(公告)号:US20100080555A1

    公开(公告)日:2010-04-01

    申请号:US12240264

    申请日:2008-09-29

    IPC分类号: H04J14/00

    摘要: A wireless communication network architecture 100 is provided. The wireless communication network architecture consists of multiple fiber optic rings 110, 120, 130 and employs a Radio over Fiber (RoF) network. Each of these fiber optic rings is constructed using an optical fiber on a segment 105, 115, 125 formed by dividing a path. Each fiber optic ring includes a number of remote antenna units (RAUs) 181-184, 191-194. Each RAU 4 is integrated into a corresponding Add/Drop Multiplexer (ADM) 186-189, 196-199 and each ADM is further connected to a base station.

    摘要翻译: 提供了一种无线通信网络架构100。 无线通信网络架构由多个光纤环110,120,130组成,并且采用光纤无线(RoF)网络。 这些光纤环中的每一个使用在通过划分路径形成的段105,115和125上的光纤来构造。 每个光纤环包括多个远程天线单元(RAU)181-184,191-194。 每个RAU 4被集成到相应的分插复用器(ADM)186-189,196-199中,并且每个ADM进一步连接到基站。