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1. 发明申请

US20130070750A1 METHOD AND APPARATUS FOR ACQUIRING RECEPTION SYNCHRONIZATION IN LOCAL WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在本地无线通信系统中获取接收同步的方法和装置
公开(公告)号：US20130070750A1
公开(公告)日：2013-03-21
申请号：US13600269
申请日：2012-08-31
申请人： Byoung Hak KIM , Jaehwan KIM , Mi Kyung OH , Sangjae LEE , Seung Sik LEE , cheol-ho SHIN , Young Ae JEON , Sangsung CHOI
发明人： Byoung Hak KIM , Jaehwan KIM , Mi Kyung OH , Sangjae LEE , Seung Sik LEE , cheol-ho SHIN , Young Ae JEON , Sangsung CHOI
IPC分类号： H04W56/00
CPC分类号： H04W56/0035 , H04W56/0085
摘要： In a local wireless communication system, a reception signal including an STF (short training field) in which a plurality of patterns are repeatedly transmitted is received, the STF including a first number of STF patterns and a second number of STF patterns, the second number of STF patterns having an opposite code to that of the first number of STF patterns. In a first frequency offset estimation and correction process and a second frequency offset estimation and correction process, frequency offset estimation is performed on a plurality of STF patterns to acquire a phase error of each sample constituting the STF patterns, and the frequency of the STF patterns is corrected based on the acquired phase error. Cross correlation is performed on a predetermined number of STF patterns, among a plurality of STF patterns output subsequent to the frequency offset estimation and correction, to detect frame timing.
摘要翻译：在本地无线通信系统中，接收包括多个模式被重复发送的STF（短训练场）的接收信号，STF包括第一数量的STF模式和第二数量的STF模式，第二数量的STF图案具有与第一数量的STF图案相反的代码。在第一频率偏移估计和校正处理和第二频率偏移估计和校正处理中，对多个STF模式执行频率偏移估计，以获取构成STF模式的每个样本的相位误差，以及STF模式的频率基于所获取的相位误差来校正。在频率偏移估计和校正之后输出的多个STF模式中，对预定数量的STF模式执行交叉相关，以检测帧定时。

2. 发明申请

US20130043920A1 DIGITAL PHASE-LOCKED LOOP APPARATUS USING FREQUENCY SHIFT KEYING AND METHOD OF CONTROLLING THE SAME 失效
标题翻译：使用频移键控的数字相位锁定装置及其控制方法
公开(公告)号：US20130043920A1
公开(公告)日：2013-02-21
申请号：US13589629
申请日：2012-08-20
申请人： Seung Sik LEE , Sangsung CHOI , Young Ae JEON , Sangjae LEE , Byoung Hak KIM , Mi Kyung OH , Cheol-ho SHIN , Kang-yoon LEE , YoungGun PU , Joon-Sung PARK
发明人： Seung Sik LEE , Sangsung CHOI , Young Ae JEON , Sangjae LEE , Byoung Hak KIM , Mi Kyung OH , Cheol-ho SHIN , Kang-yoon LEE , YoungGun PU , Joon-Sung PARK
IPC分类号： H03L7/093
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。

3. 发明申请

US20120163263A1 BASE STATION, TERMINAL, AND OPERATING METHOD THEREOF 审中-公开
标题翻译：基站，终端及其操作方法
公开(公告)号：US20120163263A1
公开(公告)日：2012-06-28
申请号：US13335530
申请日：2011-12-22
申请人： Mi Kyung OH , Young Ae JEON , cheol-ho SHIN , Seung Sik LEE , Sangjae LEE , Byoung Hak KIM , Sangsung CHOI
发明人： Mi Kyung OH , Young Ae JEON , cheol-ho SHIN , Seung Sik LEE , Sangjae LEE , Byoung Hak KIM , Sangsung CHOI
IPC分类号： H04W52/02
CPC分类号： H04W52/0216 , H04W52/0229 , Y02D70/21
摘要： A base station and a terminal for supporting a low power mode are provided. The base station transmits a first type of beacon signal for a terminal operating in a normal mode, a second type of beacon signal for a terminal operating in a low power mode, and a charging signal for a terminal in a low power mode. The terminal harvests energy from a charging signal and receives the second type of beacon signal using the harvested energy. The terminal confirms a communication request through the second type of beacon signal, enters into an active period, and communicates with the base station.
摘要翻译：提供了用于支持低功率模式的基站和终端。基站发送用于在正常模式下工作的终端的第一类型的信标信号，以及以低功率模式工作的终端的第二类信标信号，以及用于低功率模式的终端的充电信号。终端从充电信号收获能量，并使用收获的能量接收第二类型的信标信号。终端通过第二类型的信标信号确认通信请求，进入活动期，并与基站进行通信。

4. 发明申请

US20120163444A1 APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING 失效
标题翻译：发送和接收的装置和方法
公开(公告)号：US20120163444A1
公开(公告)日：2012-06-28
申请号：US13217435
申请日：2011-08-25
申请人： Mi Kyung OH , Cheol-Ho SHIN , Byoung Hak KIM , Seung Sik LEE , Sangsung CHOI
发明人： Mi Kyung OH , Cheol-Ho SHIN , Byoung Hak KIM , Seung Sik LEE , Sangsung CHOI
IPC分类号： H04L27/12 , H04L27/06 , H03K7/04
CPC分类号： H04L27/12 , H04L25/4902
摘要： A transmitting apparatus groups a data bit sequence to groups each formed of a predetermined number of bits, modulates predetermined bits of one of groups through a frequency shift keying (FSK) modulation method, non-continuously aligns the FSK modulation signals, and transmits the non-continuous FSK modulation signals.
摘要翻译：发送装置将数据比特序列分组成各自由预定比特数组成的组，通过频移键控（FSK）调制方式调制组中的一组的预定比特，不连续对准FSK调制信号， - 连续的FSK调制信号。

5. 发明申请

US20090154532A1 APPARATUS AND METHOD FOR RECEIVING SIGNAL FOR EXTENT LIMITATION OF TIMING SYNCHRONIZATION IN MB-OFDM UWB SYSTEM 失效
标题翻译：用于接收信号的装置和方法，用于在MB-OFDM UWB系统中进行同步同步的限制
公开(公告)号：US20090154532A1
公开(公告)日：2009-06-18
申请号：US12201084
申请日：2008-08-29
申请人： Cheol Ho SHIN , Byoung Hak KIM , Sang Sung CHOI , Kwang Rho Park
发明人： Cheol Ho SHIN , Byoung Hak KIM , Sang Sung CHOI , Kwang Rho Park
IPC分类号： H04B1/707
CPC分类号： H04L27/2665 , H04L27/2656 , H04L27/2657 , H04L27/2675
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。

6. 发明申请

US20080130513A1 METHOD AND APPARATUS FOR GENERATING LINK QUALITY INDICATOR INFORMATION IN MB-OFDM UWB SYSTEM 失效
标题翻译：用于在MB-OFDM UWB系统中生成链路质量指示符信息的方法和装置
公开(公告)号：US20080130513A1
公开(公告)日：2008-06-05
申请号：US11947923
申请日：2007-11-30
申请人： Cheol Ho SHIN , Sung Woo CHOI , Joon Hak BANG , Byoung Hak KIM , Sang Sung CHOI , Kwang Roh PARK
发明人： Cheol Ho SHIN , Sung Woo CHOI , Joon Hak BANG , Byoung Hak KIM , Sang Sung CHOI , Kwang Roh PARK
IPC分类号： G06F11/30
CPC分类号： H04L1/20 , H04L1/0002 , H04L27/2626 , H04L27/2647
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。

7. 发明申请

US20120102034A1 SYSTEM AND METHOD FOR RECOMMENDING LOCATION-BASED KEYWORD 有权
标题翻译：建立基于位置的关键词的系统和方法
公开(公告)号：US20120102034A1
公开(公告)日：2012-04-26
申请号：US13243684
申请日：2011-09-23
申请人： Byoung Hak KIM , Chae Hyun LEE
发明人： Byoung Hak KIM , Chae Hyun LEE
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。

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