Apparatus and method for communication
    1.
    发明授权
    Apparatus and method for communication 有权
    用于通信的装置和方法

    公开(公告)号:US08300676B2

    公开(公告)日:2012-10-30

    申请号:US12536929

    申请日:2009-08-06

    IPC分类号: H04B1/00

    CPC分类号: H04L27/0006

    摘要: A communication apparatus generates a digital detection signal including a plurality of time symbols by digital-converting a detection signal corresponding to a received signal, estimates an average power value of the detection signal by calculating average power of the digital detection signal based on the digital detection signal, and performs UWB communication through a predetermined first channel when a predetermined reference power value is greater than the average power value.

    摘要翻译: 通信装置通过对与接收信号相对应的检测信号进行数字转换来生成包括多个时间符号的数字检测信号,通过基于数字检测来计算数字检测信号的平均功率来估计检测信号的平均功率值 信号,并且当预定参考功率值大于平均功率值时,通过预定的第一通道执行UWB通信。

    APPARATUS AND METHOD FOR COMMUNICATION
    2.
    发明申请
    APPARATUS AND METHOD FOR COMMUNICATION 有权
    装置和通信方法

    公开(公告)号:US20100124252A1

    公开(公告)日:2010-05-20

    申请号:US12536929

    申请日:2009-08-06

    IPC分类号: H04B1/69

    CPC分类号: H04L27/0006

    摘要: A communication apparatus generates a digital detection signal including a plurality of time symbols by digital-converting a detection signal corresponding to a received signal, estimates an average power value of the detection signal by calculating average power of the digital detection signal based on the digital detection signal, and performs UWB communication through a predetermined first channel when a predetermined reference power value is greater than the average power value.

    摘要翻译: 通信装置通过对与接收信号相对应的检测信号进行数字转换来生成包括多个时间符号的数字检测信号,通过基于数字检测来计算数字检测信号的平均功率来估计检测信号的平均功率值 信号,并且当预定参考功率值大于平均功率值时,通过预定的第一通道执行UWB通信。

    Method and apparatus for generating link quality indicator information in MB-OFDM UWB system
    3.
    发明授权
    Method and apparatus for generating link quality indicator information in MB-OFDM UWB system 失效
    在MB-OFDM UWB系统中生成链路质量指标信息的方法和装置

    公开(公告)号:US07760689B2

    公开(公告)日:2010-07-20

    申请号:US11947923

    申请日:2007-11-30

    IPC分类号: H04W4/00

    摘要: It is possible to intuitively determine whether to control transmission power of a current data transmission rate mode or to change the data transmission rate mode by extracting an automatic gain controller (AGC) index after driving algorithm of an AGC, recognizing a channel clear assessment (CCA) status by using the extracted AGC index, and generating link quality indicator (LQI) information to be transmitted from a physical layer to a media access control (MAC) layer by using the AGC index, when the CCA status is high, in order to embody effective piconets in a multi-band orthogonal frequency division multiplexing ultra-wide band system (MB-OFDM UWB system) including a receiver having a dynamic gain controller(DGC) and the AGC.

    摘要翻译: 可以直观地确定是否控制当前数据传输速率模式的传输功率,或者通过在AGC的驱动算法之后提取自动增益控制器(AGC)索引来改变数据传输速率模式,识别信道清除评估(CCA )状态,并且当CCA状态为高时,通过使用AGC索引生成要从物理层发送到媒体访问控制(MAC)层的链路质量指示符(LQI)信息,以便 在包括具有动态增益控制器(DGC)和AGC的接收机的多频带正交频分复用超宽带系统(MB-OFDM UWB系统)中实现有效微微网。

    Digital phase-locked loop apparatus using frequency shift keying and method of controlling the same
    7.
    发明授权
    Digital phase-locked loop apparatus using frequency shift keying and method of controlling the same 失效
    使用频移键控的数字锁相环装置及其控制方法

    公开(公告)号:US08552775B2

    公开(公告)日:2013-10-08

    申请号:US13589629

    申请日:2012-08-20

    IPC分类号: H03L7/06

    CPC分类号: H03L7/0992

    摘要: A digital phase-locked loop apparatus using FSK includes a PFD detecting phase differences between a reference clock and a frequency-divided signal, and a first adder for generating first digital control codes by adding first digital codes, second digital codes, and channel frequency codes including channel information to each other, the first digital codes being converted from time differences between first and second pulses. The apparatus further includes a digital filter correcting errors of the first digital control codes to generate second digital control codes, a DCO for varying an oscillating frequency in accordance with a digital tuning word based on the second digital control codes, and a dual modulus division unit dividing the oscillating frequency into a frequency-divided signal.

    摘要翻译: 使用FSK的数字锁相环装置包括PFD检测参考时钟和分频信号之间的相位差,以及第一加法器,用于通过将第一数字码,第二数字码和频道频率码相加来产生第一数字控制码 包括彼此的信道信息,所述第一数字码从第一和第二脉冲之间的时间差转换。 该装置还包括校正第一数字控制码的误差以产生第二数字控制码的数字滤波器,用于根据第二数字控制码根据数字调谐字改变振荡频率的DCO,以及双模分割单元 将振荡频率分频成分频信号。

    Apparatus and method for receiving signal for extent limitation of timing synchronization in MB-OFDM UWB system
    8.
    发明授权
    Apparatus and method for receiving signal for extent limitation of timing synchronization in MB-OFDM UWB system 失效
    用于在MB-OFDM UWB系统中接收定时同步范围限制的信号的装置和方法

    公开(公告)号:US08165254B2

    公开(公告)日:2012-04-24

    申请号:US12201084

    申请日:2008-08-29

    IPC分类号: H04L7/00

    摘要: The present invention relates to an apparatus and a method for receiving signal for extent of timing synchronization in MB-OFDM UWB System. The invention divides the digital samples completed of sampling twice as much as minimum sampling clock required to restore the MB-OFDM received signal into ODD data path and EVEN data path, executes the packet detection and timing synchronization for each of divided path and selects the data of path with larger cross correlation value at the timing synchronization point to secure the stable receiving performance in system environment with severe frequency offset and prevent the FTT window shift within preamble section through adding minimum hardware and structural change without increasing the system clock.

    摘要翻译: 本发明涉及一种用于在MB-OFDM UWB系统中接收定时同步程度的信号的装置和方法。 本发明将采样完成的数字采样与将数据采集信号恢复为ODD数据路径和EVEN数据通路所需的最小采样时钟相同,执行分割路径每个分组检测和定时同步,并选择数据 的路径在定时同步点具有较大的互相关值,以确保具有严重频率偏移的系统环境中的稳定接收性能,并且通过在不增加系统时钟的情况下添加最小硬件和结构变化来防止前导码部分内的FTT窗口偏移。

    Method for calculating relevance between words based on document set and system for executing the method
    9.
    发明申请
    Method for calculating relevance between words based on document set and system for executing the method 有权
    基于文件集和用于执行该方法的系统之间的相关性的计算方法

    公开(公告)号:US20080140648A1

    公开(公告)日:2008-06-12

    申请号:US11953769

    申请日:2007-12-10

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30622 G06F17/30687

    摘要: A method and system for calculating a relevance between words using a document set is provided. The method of calculating the relevance between words based on a document set, includes: obtaining statistical information about the words based on at least one of the words, documents, a word classification of the words, and a document classification of the documents, wherein the words and the documents are included in the document set; standardizing the statistical information; and calculating the relevance between the words based on the standardized statistical information.

    摘要翻译: 提供了一种用于计算使用文档集合的单词之间的相关性的方法和系统。 计算基于文档集合的单词之间的相关性的方法包括:基于文字中的至少一个单词获取关于单词的统计信息,单词的单词分类以及文档的文档分类,其中, 单词和文件包含在文档集中; 规范统计资料; 并根据标准化统计信息计算单词之间的相关性。

    System and method for recommending location-based keyword
    10.
    发明授权
    System and method for recommending location-based keyword 有权
    用于推荐基于位置的关键字的系统和方法

    公开(公告)号:US09460113B2

    公开(公告)日:2016-10-04

    申请号:US13243684

    申请日:2011-09-23

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30241

    摘要: According to exemplary embodiments of the invention, a location-based keyword recommending system and method are provided. The location-based keyword recommending system may include a keyword collecting unit to store location information regarding a location where a keyword is input, a region setting unit to set a virtual region by performing clustering of the location information with reference to the keyword, a region combining unit to combine virtual regions overlapping each other into one virtual region, and a keyword recommending unit to provide a location-based keyword based on the keyword related to the location information of the virtual region.

    摘要翻译: 根据本发明的示例性实施例,提供了基于位置的关键字推荐系统和方法。 基于位置的关键字推荐系统可以包括:关键词收集单元,用于存储关于输入关键词的位置的位置信息;区域设定单元,通过参照该关键字进行位置信息的聚类来设定虚拟区域;区域 组合单元将彼此重叠的虚拟区域组合成一个虚拟区域;以及关键字推荐单元,基于与虚拟区域的位置信息相关的关键字来提供基于位置的关键字。