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21. 发明授权

US08222697B2 CMOS RF IC 有权
标题翻译： CMOS射频IC
公开(公告)号：US08222697B2
公开(公告)日：2012-07-17
申请号：US12273719
申请日：2008-11-19
申请人： Yu Sin Kim , Chang Seok Lee , Nam Jin Oh , Shinichi Iizuka
发明人： Yu Sin Kim , Chang Seok Lee , Nam Jin Oh , Shinichi Iizuka
IPC分类号： H01L27/12
CPC分类号： G06K19/07749 , G06K19/07775 , G06K19/07779 , H01L23/5227 , H01L23/645 , H01L2223/665 , H01L2924/0002 , H01L2924/14 , H01L2924/00
摘要： Provided is a CMOS RF IC comprises an inductor that is formed in the uppermost two or more metal layers among a plurality of metal layers; and a DC bias circuit that is formed in a metal layer provided at the bottom of the metal layers in which the inductor is formed.
摘要翻译：提供了一种CMOS RF IC，其包括形成在多个金属层中的最上面的两个或更多个金属层中的电感器; 以及形成在设置在形成有电感器的金属层的底部的金属层中的DC偏置电路。

22. 发明授权

US08030991B2 Frequency tuning and direct current offset canceling circuit for continuous-time analog filter with time divided 失效
标题翻译：具有时间分频功能的连续时间模拟滤波器的频率调谐和直流偏移消除电路
公开(公告)号：US08030991B2
公开(公告)日：2011-10-04
申请号：US12614244
申请日：2009-11-06
申请人： Sang Hyun Cha , Chang Seok Lee
发明人： Sang Hyun Cha , Chang Seok Lee
IPC分类号： H04B1/10 , H04B1/12
CPC分类号： H04L25/063 , H04L27/0014
摘要： The present invention provides a frequency tuning/DC offset canceling circuit for continuous-time analog filter with time division, the frequency tuning/DC offset canceling circuit including: a frequency tuning/DC offset canceling unit for performing frequency tuning by comparing an output voltage with a reference voltage when a frequency tuning control signal is inputted, and canceling a DC offset after terminating the frequency tuning when a DC offset canceling control signal is inputted; and a control signal generator for generating the frequency tuning control signal and the DC offset canceling control signal based on a reference clock in time division.
摘要翻译：本发明提供了一种用于具有时分的连续时间模拟滤波器的频率调谐/ DC偏移消除电路，该频率调谐/ DC偏移消除电路包括：频率调谐/ DC偏移消除单元，用于通过将输出电压与当输入频率调谐控制信号时的参考电压，以及在输入DC偏移消除控制信号时终止频率调谐之后取消DC偏移; 以及控制信号发生器，用于基于时分的参考时钟产生频率调谐控制信号和DC偏移消除控制信号。

23. 发明授权

US07954079B2 Method for compensating performance degradation of RFIC using EM simulation 有权
标题翻译：使用EM模拟来补偿RFIC性能下降的方法
公开(公告)号：US07954079B2
公开(公告)日：2011-05-31
申请号：US11943211
申请日：2007-11-20
申请人： Yu Sin Kim , Chang Seok Lee , Chang Soo Yang , Kwang Du Lee , Hak Sun Kim
发明人： Yu Sin Kim , Chang Seok Lee , Chang Soo Yang , Kwang Du Lee , Hak Sun Kim
IPC分类号： G06F17/50
CPC分类号： G06F17/5068 , G06F17/5036
摘要： Provided is a method for compensating performance degradation of a radio frequency integrated circuit (RFIC) using an EM simulation. The method includes the steps of: (a) extracting the design specifications of the RFIC so as design and simulate a circuit; (b) designing the layout of the designed and simulated circuit, and extracting layout parameters by using the designed layout; (c) simplifying the layout and carrying out the EM simulation to extract performance parameters; (d) carrying out a circuit simulation by using the extracted layout parameters and performance parameters, and judging whether the results of the circuit simulation satisfy the design specifications of the RFIC or not; (e) when it is judged that the results of the circuit simulation satisfy the design specifications of the RFIC, performing a circuit manufacturing process; and (f) when it is not judged that the results of the circuit simulation satisfy the design specifications of the RFIC, partially removing the layout, and carrying out the EM simulation, thereby analyzing and compensating a performance degradation region.
摘要翻译：提供了一种使用EM模拟来补偿射频集成电路（RFIC）的性能劣化的方法。该方法包括以下步骤：（a）提取RFIC的设计规范，以设计和模拟电路; （b）设计和仿真电路的布局设计，并通过设计布局提取布局参数; （c）简化布局并执行EM仿真以提取性能参数; （d）使用提取的布局参数和性能参数进行电路仿真，判断电路仿真结果是否满足RFIC的设计规范; （e）当判断电路仿真的结果满足RFIC的设计规范时，执行电路制造过程; 和（f）当不判断电路仿真的结果满足RFIC的设计规范时，部分地去除布局并进行EM仿真，从而分析和补偿性能退化区域。

24. 发明授权

US09060284B2 Method and device for estimating AP position using a map of a wireless LAN radio environment 有权
标题翻译：使用无线LAN无线电环境的映射来估计AP位置的方法和装置
公开(公告)号：US09060284B2
公开(公告)日：2015-06-16
申请号：US13808847
申请日：2011-06-28
申请人： Chae Hwan Cho , Chang Seok Lee , Suk Yon Kang , Seung Yoon Baek , Hye Min Lee
发明人： Chae Hwan Cho , Chang Seok Lee , Suk Yon Kang , Seung Yoon Baek , Hye Min Lee
IPC分类号： G08C15/00 , H04W24/00 , G01S5/02 , H04W64/00 , H04L29/12
CPC分类号： H04W24/00 , G01S5/0242 , G01S5/0252 , H04L61/6022 , H04W64/003
摘要： The present disclosure concerns a method and apparatus for estimating AP position using WLAN radiowave environment map. An embodiment includes filter for generating filtering radiowave map with data selected exclusively for having common MAC address from collected WLAN radiowave environment maps; grid-cell divisor for generating grid radiowave map with arbitrary grid cells from dividing the filtering radiowave map; representative-coordinate mapper for calculating centroid of each of grid cells constituting grid radiowave map and mapping each centroid as representative coordinate to each grid cell; representative-signal-strength mapper for calculating representative signal strengths based on data in grid cell and mapping each representative signal strength to grid cell; weight-value sorter for sorting out weight value corresponding to a range covering representative signal strength as received; and position estimator for estimating positional information of APs having common MAC address based on one or more of representative coordinate, representative signal strength, and weight value.
摘要翻译：本公开涉及使用WLAN无线电波环境映射来估计AP位置的方法和装置。一个实施例包括用于产生滤波无线电波映射的滤波器，其中专门为从已收集的WLAN无线电波环境图中具有公共MAC地址而选择的数据; 用于生成具有任意网格单元的网格无线电波映射的网格除数除以滤波无线电波图; 用于计算构成网格无线电波映射的每个网格单元的质心的代表坐标映射器，并将每个质心作为代表坐标映射到每个网格单元; 代表信号强度映射器，用于基于网格单元中的数据计算代表性信号强度，并将每个代表信号强度映射到网格单元; 重量值分选器，用于对与覆盖代表信号强度的范围相对应的重量值进行分类; 以及位置估计器，用于基于代表坐标，代表信号强度和权重值中的一个或多个来估计具有公共MAC地址的AP的位置信息。

25. 发明授权

US08874137B2 Method and device for discriminating positioning error using wireless LAN signal 有权
标题翻译：使用无线LAN信号鉴别定位误差的方法和装置
公开(公告)号：US08874137B2
公开(公告)日：2014-10-28
申请号：US13808825
申请日：2011-06-28
申请人： Suk Yon Kang , Chae Hwan Cho , Seung Yoon Baek , Hye Min Lee , Chang Seok Lee
发明人： Suk Yon Kang , Chae Hwan Cho , Seung Yoon Baek , Hye Min Lee , Chang Seok Lee
IPC分类号： H04W24/00 , H04W64/00 , G01S5/02
CPC分类号： H04W24/00 , G01S5/021 , G01S5/0252 , G01S5/0268 , H04W64/00
摘要： Apparatus for determining a positioning error includes: database for storing grid cells separated by each pCell ID and WLAN environment information matched to grid cells; information receiving unit for receiving terminal WLAN environment information from mobile communication terminal; identification information checking unit for checking AP identification information included in terminal WLAN environment information; triangulating unit for calculating triangulation coordinate value by performing triangulation with AP position estimation information corresponding to AP identification information; grid cell positioning unit for selecting one or more grid cells corresponding to AP identification information and calculating grid cell coordinate value based on coordinate value corresponding to grid cell selected; and error determining unit for comparing triangulation coordinate value and grid cell coordinate value and determining whether there is positioning error in any one of triangulation coordinate value and grid cell coordinate value.
摘要翻译：用于确定定位误差的装置包括：用于存储由每个pCell ID分隔的网格单元的数据库和与网格单元匹配的WLAN环境信息; 信息接收单元，用于从移动通信终端接收终端WLAN环境信息; 识别信息检查单元，用于检查包括在终端WLAN环境信息中的AP标识信息; 用于通过对应于AP识别信息的AP位置估计信息进行三角测量来计算三角测量坐标值的三角测量单元; 网格单元定位单元，用于选择与AP识别信息相对应的一个或多个网格单元，并且基于与所选择的网格单元对应的坐标值来计算网格单元坐标值; 以及用于比较三角测量坐标值和网格单元坐标值的误差确定单元，并且确定三角测量坐标值和网格单元坐标值中的任何一个中是否存在定位误差。

26. 发明授权

US08666433B2 Location positioning method and device using wireless LAN signals 有权
标题翻译：位置定位方法和装置采用无线局域网信号
公开(公告)号：US08666433B2
公开(公告)日：2014-03-04
申请号：US13696485
申请日：2011-05-04
申请人： Chae Hwan Cho , Suk Yon Kang , Chang Seok Lee , Jin Hyo Park , Jong Tae Ihm
发明人： Chae Hwan Cho , Suk Yon Kang , Chang Seok Lee , Jin Hyo Park , Jong Tae Ihm
IPC分类号： H04W24/00
CPC分类号： H04W64/00 , G01S5/02 , G01S5/0236 , H04W84/12
摘要： A location positioning methoded device using a wireless LAN signal, comprising: a database that includes a first DB, which matches grid cells distinguished by pCell ID with partial wireless LAN-related information related to a wireless LAN signal and stores the matched information, and a second DB, which stores overall wireless LAN-related information related to the wireless LAN signal; an information reception unit that receives terminal wireless LAN-related information from a terminal, which performs communication by using the WLAN signal; a record determination unit; and a location positioning unit.
摘要翻译：一种使用无线LAN信号的位置定位方法的装置，包括：数据库，包括与由pCell ID区分的网格单元与与无线LAN信号相关的部分无线LAN相关信息匹配的第一DB，并存储匹配信息，第二DB，其存储与无线LAN信号相关的总体无线LAN相关信息; 信息接收单元，从通过使用所述WLAN信号进行通信的终端接收终端无线LAN相关信息; 记录决定单位; 和位置定位单元。

27. 发明申请

US20130172010A1 METHOD FOR GENERATING IN-BUILDING PROPAGATION ENVIRONMENT MAPS AND DEVICE THEREFOR 审中-公开
标题翻译：用于生成内置传播环境的方法及其设备
公开(公告)号：US20130172010A1
公开(公告)日：2013-07-04
申请号：US13806959
申请日：2011-06-27
申请人： Suk Yon Kang , Chae Hwan Cho , Seung Yoon Baek , Hye Min Lee , Chang Seok Lee
发明人： Suk Yon Kang , Chae Hwan Cho , Seung Yoon Baek , Hye Min Lee , Chang Seok Lee
IPC分类号： H04W4/04
CPC分类号： H04W4/021 , G01S5/0252 , H04W4/027 , H04W4/33 , H04W16/20 , H04W64/00
摘要： An apparatus for generating in-building radiowave environment maps, includes: an in-building map providing unit configured to provide in-building map data to a radiowave measurement device; a reference point setting unit configured to interwork with the radiowave measurement device and set up a reference point of specific area in the in-building map data; a location estimating unit configured to estimate a mobile location of the radiowave measurement device by using motion sensor information received from the radiowave measurement device; a radiowave environment collecting unit configured to collect radiowave environment information from the radiowave measurement device; and an in-building radiowave environment mapping unit configured to generate an in-building radiowave environment map by storing the radiowave environment information onto the in-building map data matchingly with every piece of location estimation information on the mobile location estimated based on the reference point.
摘要翻译：一种用于生成室内无线电波环境地图的装置，包括：建筑物内地图提供单元，被配置为向无线电波测量设备提供建筑物内的地图数据; 参考点设定单元，被配置为与无线电波测量装置相互作用并在建筑物内的地图数据中建立特定区域的参考点; 位置估计单元，被配置为通过使用从所述无线电波测量装置接收的运动传感器信息来估计所述无线电波测量装置的移动位置; 无线电波环境收集单元，被配置为从所述无线电波测量装置收集无线电波环境信息; 以及室内无线电波环境映射单元，被配置为通过将无线电波环境信息与基于参考点估计的移动位置上的每个位置估计信息匹配的建筑物内映射数据存储在建筑物内无线电波环境地图中。

28. 发明申请

US20130170383A1 METHOD AND DEVICE FOR ESTIMATING AP POSITION USING A MAP OF A WIRELESS LAN RADIO ENVIRONMENT 有权
标题翻译：使用无线局域网无线电环境映射估算AP位置的方法和装置
公开(公告)号：US20130170383A1
公开(公告)日：2013-07-04
申请号：US13808847
申请日：2011-06-28
申请人： Chae Hwan Cho , Chang Seok Lee , Suk Yon Kang , Seung Yoon Baek , Hye Min Lee
发明人： Chae Hwan Cho , Chang Seok Lee , Suk Yon Kang , Seung Yoon Baek , Hye Min Lee
IPC分类号： H04W24/00
CPC分类号： H04W24/00 , G01S5/0242 , G01S5/0252 , H04L61/6022 , H04W64/003
摘要： The present disclosure concerns a method and apparatus for estimating AP position using WLAN radiowave environment map. An embodiment includes filter for generating filtering radiowave map with data selected exclusively for having common MAC address from collected WLAN radiowave environment maps; grid-cell divisor for generating grid radiowave map with arbitrary grid cells from dividing the filtering radiowave map; representative-coordinate mapper for calculating centroid of each of grid cells constituting grid radiowave map and mapping each centroid as representative coordinate to each grid cell; representative-signal-strength mapper for calculating representative signal strengths based on data in grid cell and mapping each representative signal strength to grid cell; weight-value sorter for sorting out weight value corresponding to a range covering representative signal strength as received; and position estimator for estimating positional information of APs having common MAC address based on one or more of representative coordinate, representative signal strength, and weight value.
摘要翻译：本公开涉及使用WLAN无线电波环境映射来估计AP位置的方法和装置。一个实施例包括用于产生滤波无线电波映射的滤波器，其中专门为从已收集的WLAN无线电波环境图中具有公共MAC地址而选择的数据; 用于生成具有任意网格单元的网格无线电波映射的网格除数除以滤波无线电波图; 用于计算构成网格无线电波映射的每个网格单元的质心的代表坐标映射器，并将每个质心作为代表坐标映射到每个网格单元; 代表信号强度映射器，用于基于网格单元中的数据计算代表性信号强度，并将每个代表信号强度映射到网格单元; 重量值分选器，用于对与覆盖代表信号强度的范围相对应的重量值进行分类; 以及位置估计器，用于基于代表坐标，代表信号强度和权重值中的一个或多个来估计具有公共MAC地址的AP的位置信息。

29. 发明申请

US20130059602A1 LOCATION POSITIONING METHOD AND DEVICE USING WIRELESS LAN SIGNALS 有权
标题翻译：位置定位方法和使用无线局域网信号的设备
公开(公告)号：US20130059602A1
公开(公告)日：2013-03-07
申请号：US13696485
申请日：2011-05-04
申请人： Chae Hwan Cho , Suk Yon Kang , Chang Seok Lee , Jin Hyo Park , Jong Tae Ihm
发明人： Chae Hwan Cho , Suk Yon Kang , Chang Seok Lee , Jin Hyo Park , Jong Tae Ihm
IPC分类号： H04W24/00
CPC分类号： H04W64/00 , G01S5/02 , G01S5/0236 , H04W84/12
摘要： A location positioning methoded device using a wireless LAN signal, comprising: a database that includes a first DB, which matches grid cells distinguished by pCell ID with partial wireless LAN-related information related to a wireless LAN signal and stores the matched information, and a second DB, which stores overall wireless LAN-related information related to the wireless LAN signal; an information reception unit that receives terminal wireless LAN-related information from a terminal, which performs communication by using the WLAN signal; a record determination unit; and a location positioning unit.
摘要翻译：一种使用无线LAN信号的位置定位方法的装置，包括：数据库，包括与由pCell ID区分的网格单元与与无线LAN信号相关的部分无线LAN相关信息匹配的第一DB，并存储匹配信息，第二DB，其存储与无线LAN信号相关的总体无线LAN相关信息; 信息接收单元，从通过使用所述WLAN信号进行通信的终端接收终端无线LAN相关信息; 记录决定单位; 和位置定位单元。

30. 发明申请

US20120319609A1 LIGHT EMITTING DIODE DRIVER HAVING OFFSET VOLTAGE COMPENSATING FUNCTION 审中-公开
标题翻译：具有偏置电压补偿功能的发光二极管驱动器
公开(公告)号：US20120319609A1
公开(公告)日：2012-12-20
申请号：US13288728
申请日：2011-11-03
申请人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
发明人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0848 , Y02B20/345
摘要： There is provided a light emitting diode (LED) driver having an offset voltage compensating function compensating for an offset voltage generated at the time of driving of an LED, the LED driver including: a driving unit detecting a current flowing in an LED unit having at least one LED, as a voltage and controlling the current flowing in the LED unit according to a comparison result between the detected voltage and a reference voltage having a preset voltage level; and an offset compensating unit integrating a voltage difference between the detected voltage and the reference voltage and adding or subtracting a compensating current according to an integration result to thereby compensate for an offset.
摘要翻译：提供一种发光二极管（LED）驱动器，其具有补偿在驱动LED时产生的偏移电压的偏移电压补偿功能，所述LED驱动器包括：驱动单元，其检测在具有至少一个LED作为电压，并且根据检测到的电压和具有预设电压电平的参考电压之间的比较结果来控制在LED单元中流动的电流; 以及偏移补偿单元，其将检测到的电压和参考电压之间的电压差积分，并根据积分结果来补偿或减去补偿电流，从而补偿偏移。

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