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1. 发明申请

US20110136445A1 RFID READER AND METHOD FOR SUPPRESSING TRANSMISSION LEAKAGE SIGNAL THEREOF 失效
标题翻译：用于抑制传输泄漏信号的RFID读取器和方法
公开(公告)号：US20110136445A1
公开(公告)日：2011-06-09
申请号：US12786777
申请日：2010-05-25
申请人： Donghan LEE , Sang Gee KANG , Kwang-Soo CHO , Man Sik PARK , Chan-Won PARK , Cheng-Hao QUAN , Ji-Hoon BAE , Gil Young CHOI , Jong-Suk CHAE
发明人： Donghan LEE , Sang Gee KANG , Kwang-Soo CHO , Man Sik PARK , Chan-Won PARK , Cheng-Hao QUAN , Ji-Hoon BAE , Gil Young CHOI , Jong-Suk CHAE
IPC分类号： H04B1/40
CPC分类号： H04B1/525 , G06K7/0008 , G06K7/10346
摘要： Provided are an RFID reader and a method for suppressing transmission leakage signals thereof. The RFID reader includes a first loop, a second loop, and a digital signal processor. The first loop suppresses a first transmission leakage signal of an RX signal in response to a first leakage control signal. The second loop suppresses a second transmission leakage signal of the RX signal, received through the first loop, in response to a second leakage control signal. The digital signal processor generates the first leakage control signal and the second leakage control signal. The digital signal processor generates the first leakage control signal until the level of the first transmission leakage signal becomes equal to or lower than the level of a first reference transmission leakage signal.
摘要翻译：提供RFID读取器和用于抑制其传输泄漏信号的方法。 RFID读取器包括第一环路，第二环路和数字信号处理器。第一回路响应于第一泄漏控制信号来抑制RX信号的第一传输泄漏信号。响应于第二泄漏控制信号，第二回路抑制通过第一回路接收的RX信号的第二传输泄漏信号。数字信号处理器产生第一泄漏控制信号和第二泄漏控制信号。数字信号处理器产生第一泄漏控制信号，直到第一传输泄漏信号的电平变得等于或低于第一参考传输泄漏信号的电平。

2. 发明申请

US20110064165A1 DEMODULATION APPARATUS AND METHOD FOR RFID READER IN PASSIVE RFID ENVIRONMENT 审中-公开
标题翻译： RFID读写器在无源RFID环境中的解调装置和方法
公开(公告)号：US20110064165A1
公开(公告)日：2011-03-17
申请号：US12625699
申请日：2009-11-25
申请人： Ji-Hoon BAE , Donghan LEE , Kwang-Soo CHO , Man Sik PARK , Chan-Won PARK , Cheng-Hao QUAN , Won Kyu CHOI , Gil Young CHOI , Jong-Suk CHAE
发明人： Ji-Hoon BAE , Donghan LEE , Kwang-Soo CHO , Man Sik PARK , Chan-Won PARK , Cheng-Hao QUAN , Won Kyu CHOI , Gil Young CHOI , Jong-Suk CHAE
IPC分类号： H04L27/22 , H04L25/06 , H04L27/00 , H04Q5/22
CPC分类号： H04L27/06 , H04L25/061 , H04L27/22
摘要： A demodulation apparatus for a Radio Frequency Identification (RFID) reader includes: a direct current (DC) offset cancellation unit for cancelling DC-offset noise contained in a PSK-modulated or ASK-modulated subcarrier tag signal from the tag signal when the tag signal is received; and a subcarrier digital demodulator for eliminating a subcarrier from the tag signal from which DC-offset noise has been cancelled to demodulate the DC-offset noise-cancelled tag signal.
摘要翻译：一种用于射频识别（RFID）读取器的解调装置包括：直流（DC）偏移消除单元，用于当标签信号（DC）偏移消除单元用于消除包含在来自标签信号的PSK调制或ASK调制的子载波标签信号中的DC偏移噪声被收到以及子载波数字解调器，用于从已经消除了DC偏移噪声的标签信号中消除副载波，以解调DC偏移噪声消除标签信号。

3. 发明申请

US20100026460A1 APPARATUS AND METHOD FOR TRANSMIT LEAKAGE SIGNAL SUPPRESSION IN RFID READER 失效
标题翻译： RFID读写器中发射信号抑制的装置和方法
公开(公告)号：US20100026460A1
公开(公告)日：2010-02-04
申请号：US12328385
申请日：2008-12-04
申请人： Donghan LEE , Ji-Hoon BAE , Cheng-Hao QUAN , Kwang-Soo CHO , Gil Young CHOI , Jong-Suk CHAE , Sang-Gi KANG
发明人： Donghan LEE , Ji-Hoon BAE , Cheng-Hao QUAN , Kwang-Soo CHO , Gil Young CHOI , Jong-Suk CHAE , Sang-Gi KANG
IPC分类号： H04Q5/22 , H03M1/66
CPC分类号： G06K7/0008 , G06K7/10198 , H04B5/005 , H04B5/0062 , H04B17/354 , H04L27/34
摘要： A method and apparatus for suppressing a transmit leakage signal of a radio frequency identification (RFID) reader is provided. The apparatus includes: a first power distributor distributing a transmission signal to output a first transmission signal and a second transmission signal; a second power distributor distributing the second transmission signal to output a third transmission signal and a fourth transmission signal; a first amplitude/phase converter converting an amplitude and a phase of the first transmission signal to generate a first converted signal; a second amplitude/phase converter converting an amplitude and a phase of the third transmission signal to generate a second converted signal; a first power combiner combining the first converted signal with a first leakage signal generated in association with the fourth transmission signal; and a second power combiner combining the second converted signal with a second leakage signal generated in association with the fourth transmission signal.
摘要翻译：提供一种用于抑制射频识别（RFID）读取器的发送泄漏信号的方法和装置。该装置包括：分配传输信号以输出第一传输信号和第二传输信号的第一功率分配器; 分配第二传输信号以输出第三传输信号和第四传输信号的第二功率分配器; 转换第一传输信号的幅度和相位以产生第一转换信号的第一幅度/相位转换器; 转换第三发送信号的幅度和相位的第二幅度/相位转换器，以产生第二转换信号; 第一功率组合器，其将所述第一转换信号与与所述第四发送信号相关联地生成的第一泄漏信号组合; 以及第二功率组合器，其将所述第二转换信号与与所述第四发送信号相关联地生成的第二泄漏信号组合。

4. 发明申请

US20100039227A1 APPARATUS AND METHOD FOR DEMODULATING SUBCARRIER TAG SIGNAL IN RFID READER 有权
标题翻译： RFID读写器中用于解码子标签信号的装置和方法
公开(公告)号：US20100039227A1
公开(公告)日：2010-02-18
申请号：US12348529
申请日：2009-01-05
申请人： Ji-Hoon BAE , Donghan LEE , Won Kyu CHOI , Cheng-Hao QUAN , Gil Young CHOI , Jong-Suk CHAE
发明人： Ji-Hoon BAE , Donghan LEE , Won Kyu CHOI , Cheng-Hao QUAN , Gil Young CHOI , Jong-Suk CHAE
IPC分类号： H04Q5/22
CPC分类号： H04L27/06 , H04L27/22 , H04Q2213/13095
摘要： An apparatus and a method for demodulating a subcarrier tag signal in a radio frequency identification (RFID) reader is provided. The apparatus for demodulating the subcarrier tag signal in the RFID reader may include: an edge signal generation unit receiving a subcarrier tag signal and generating an edge signal with respect to the tag signal; an edge information extraction unit extracting edge information from the generated edge signal; and a decoding unit decoding the tag signal using the extracted edge information.
摘要翻译：提供了一种用于解调射频识别（RFID）读取器中的子载波标签信号的装置和方法。用于解调RFID读取器中的子载波标签信号的装置可以包括：边缘信号生成单元，接收副载波标签信号并相对于标签信号产生边缘信号; 边缘信息提取单元，从生成的边缘信号中提取边缘信息; 以及解码单元，使用所提取的边缘信息对标签信号进行解码。

5. 发明申请

US20090109929A1 MEDIA ACCESS METHOD PERFORMED BY READER IN DENSE READER ENVIRONMENT 审中-公开
标题翻译：读写器在读写器环境中执行的媒体访问方法
公开(公告)号：US20090109929A1
公开(公告)日：2009-04-30
申请号：US12190990
申请日：2008-08-13
申请人： Cheng Hao QUAN , Hee Sook MO , Donghan LEE , Ji Hoon BAE , Gil Young CHOI , Cheol Sig PYO , Jong Suk CHAE
发明人： Cheng Hao QUAN , Hee Sook MO , Donghan LEE , Ji Hoon BAE , Gil Young CHOI , Cheol Sig PYO , Jong Suk CHAE
IPC分类号： H04Q7/36
CPC分类号： G06K7/0008 , G06K7/10039 , G06K7/10356
摘要： Provided are a media access method and a reader for performing the media access method in a dense reader environment. The media access method divides an air time between the reader and a tag into a plurality of time slots, and operates in each of the plurality of time slots by using a listen before talking (LBT) technique. The plurality of time slots form a frame. Thus, the media access method can control the reader by performing channel scheduling between each of a plurality of readers and can efficiently recognize tags.
摘要翻译：提供了一种在密集读取器环境中执行媒体访问方法的媒体访问方法和阅读器。媒体接入方法将读取器和标签之间的空闲时间分成多个时隙，并且通过使用听话（LBT）技术在多个时隙中的每一个中进行操作。多个时隙形成一帧。因此，媒体接入方法可以通过在多个读取器中的每一个之间执行频道调度来控制读取器，并且可以有效地识别标签。

6. 发明申请

US20110090130A1 RFID READER ANTENNA AND RFID SHELF HAVING THE SAME 审中-公开
标题翻译： RFID阅读器天线和RFID框架
公开(公告)号：US20110090130A1
公开(公告)日：2011-04-21
申请号：US12895142
申请日：2010-09-30
申请人： Won Kyu CHOI , Jeong Seok KIM , Ji Hoon BAE , Gil Young CHOI , Jong Suk CHAE
发明人： Won Kyu CHOI , Jeong Seok KIM , Ji Hoon BAE , Gil Young CHOI , Jong Suk CHAE
IPC分类号： H01Q13/10
CPC分类号： H01Q1/2216 , G06K7/0008 , G06K7/10316 , H01Q13/10 , H01Q13/22 , H01Q21/08 , H01Q21/24
摘要： An RFID reader antenna including: a printed circuit board (PCB) formed as a dielectric substance; a plurality of slot groups, each having a plurality of slots, disposed on a first face of the PCB; a ground face disposed on areas, excluding the plurality of slot groups, of the first face of the PCB; and a feeder formed as a microstrip line with an open end on a second face of the PCB to feed the plurality of slot groups. Because the slots periodically formed on the ground face are fed in series by using the single microstrip line, the RFID reader antenna can reliably recognize a larger area with a simple structure. In particular, the RFID reader antenna can be useful for the bookstands for book management or smart shelves for displaying articles or goods including clothing goods in superstores or hypermarkets through the use of the ILT RFID application.
摘要翻译：一种RFID读取器天线，包括：形成为电介质的印刷电路板（PCB）; 多个槽组，每个具有多个槽，设置在所述PCB的第一面上; 布置在所述PCB的第一面的除了所述多个槽组之外的区域上的接地面; 以及馈送器，其形成为在PCB的第二面上具有开口端的微带线，以馈送多个槽组。由于通过使用单条微带线，周期性地形成在地面上的槽被串联馈送，因此RFID读取器天线可以以简单的结构可靠地识别较大的区域。特别地，RFID阅读器天线可用于书本管理的书店或通过使用ILT RFID应用程序来显示物品或商品，包括超级市场或大型超市中的服装商品的智能货架。

7. 发明申请

US20100026582A1 NEAR-FIELD RADIO FREQUENCY IDENTIFICATION READER ANTENNA 审中-公开
标题翻译：近场无线电频率识别阅读器天线
公开(公告)号：US20100026582A1
公开(公告)日：2010-02-04
申请号：US12272373
申请日：2008-11-17
申请人： Won Kyu CHOI , Jeongseok KIM , Ji-Hoon BAE , Gil Young CHOI , Jong-Suk CHAE
发明人： Won Kyu CHOI , Jeongseok KIM , Ji-Hoon BAE , Gil Young CHOI , Jong-Suk CHAE
IPC分类号： H01Q1/38
CPC分类号： H01Q1/2216 , H01Q13/22 , H01Q21/0081 , H01Q21/068
摘要： A near-field radio frequency identification (RFID) reader antenna includes: a plurality of pairs of slots being formed on a ground surface of a single dielectric layer to emit a field; and a micro-strip line being formed on another surface of the single dielectric layer and having an open end to feed the plurality of pairs of slots.
摘要翻译：近场射频识别（RFID）读取器天线包括：多个槽对，形成在单个电介质层的地表面上以发射场; 并且微带线形成在单个电介质层的另一个表面上并且具有开放端以馈送多对槽。

8. 发明申请

US20090146787A1 METHOD AND DEVICE FOR SETTING RFID PARAMETER 审中-公开
标题翻译：用于设置RFID参数的方法和设备
公开(公告)号：US20090146787A1
公开(公告)日：2009-06-11
申请号：US12203426
申请日：2008-09-03
申请人： Chan-Won PARK , Jeong Seok KIM , Gil Young CHOI , Cheol Sig PYO , Jong-Suk CHAE
发明人： Chan-Won PARK , Jeong Seok KIM , Gil Young CHOI , Cheol Sig PYO , Jong-Suk CHAE
IPC分类号： H04Q5/22
CPC分类号： H04W48/08 , G06K7/0008 , G06K7/10297 , H04Q2213/13095 , H04W88/04
摘要： The present invention relates to an RFID parameter setting method and device in an RFID system including a first means for comparing a first mobile country code provided by the outside and a currently set second mobile country code, and generating a control signal for changing an RFID parameter setting of the RFID system according to the RFID standard that corresponds to the first mobile country code when the first mobile country code and the second mobile country code do not correspond with each other, and a second means for setting an operational frequency of the RFID system according to the control signal.
摘要翻译：本发明涉及一种RFID系统中的RFID参数设定方法和装置，其特征在于包括：第一装置，用于比较由外部提供的第一移动国家代码和当前设定的第二移动国家代码，并产生用于改变RFID参数的控制信号当第一移动国家代码和第二移动国家代码彼此不对应时，根据与第一移动国家代码对应的RFID标准设置RFID系统;以及第二装置，用于设置RFID系统的操作频率根据控制信号。

9. 发明申请

US20090146820A1 RADIO FREQUENCY IDENTIFICATION TAG AND ANTENNA FOR RADIO FREQUENCY IDENTIFICATION TAG 失效
标题翻译：无线电频率识别标签和无线电频率识别标签天线
公开(公告)号：US20090146820A1
公开(公告)日：2009-06-11
申请号：US12176757
申请日：2008-07-21
申请人： Jeong Seok KIM , Won Kyu CHOI , Gil Young CHOI , Cheol Sig PYO , Jong-Suk CHAE
发明人： Jeong Seok KIM , Won Kyu CHOI , Gil Young CHOI , Cheol Sig PYO , Jong-Suk CHAE
IPC分类号： G08B13/14 , H01Q9/04
CPC分类号： H01Q1/2225 , G06K19/07749 , G06K19/07752 , G06K19/07756 , G06K19/07786 , G08B13/2431 , H01Q1/38 , H01Q9/045
摘要： An RFID tag attached to an object and transmitting a signal that corresponds to identification information includes an RFID tag chip that modulates the signal according to the identification information and an RFID tag antenna that transmits the modulated signal. The RFID tag antenna includes a dielectric material, a radiating patch, and a slit. The dielectric material has a polyhedral shape and includes a first surface that contacts the object and a second surface that is parallel with the first surface, the radiating patch is formed on at least a part of the second surface and radiates electromagnetic to waves, and the slit is formed on at least a part of the radiating patch to expose the dielectric material.
摘要翻译：附加到对象并发送与识别信息相对应的信号的RFID标签包括根据识别信息调制信号的RFID标签芯片和发送调制信号的RFID标签天线。 RFID标签天线包括介电材料，辐射贴片和狭缝。介电材料具有多面体形状，并且包括与物体接触的第一表面和与第一表面平行的第二表面，辐射贴片形成在第二表面的至少一部分上并且辐射电磁波，并且狭缝形成在辐射贴片的至少一部分上以暴露电介质材料。

10. 发明申请

US20080122625A1 LOWER POWER BATTERY-ASSISTED RFID TAG HAVING IMPROVED RECOGNITION DISTANCE, AND WAKE-UP METHOD THEREOF 有权
标题翻译：具有改进的识别距离的下电力电池辅助RFID标签及其唤醒方法
公开(公告)号：US20080122625A1
公开(公告)日：2008-05-29
申请号：US11928288
申请日：2007-10-30
申请人： Jae-Young JUNG , Hae Won SON , Jong Hyun SEO , Junho YEO , Gil Young CHOI , Nae Soo KIM , Cheol Sig PYO , Jong Suk CHAE
发明人： Jae-Young JUNG , Hae Won SON , Jong Hyun SEO , Junho YEO , Gil Young CHOI , Nae Soo KIM , Cheol Sig PYO , Jong Suk CHAE
IPC分类号： G08B13/14
CPC分类号： G06K19/07749 , G06K19/0705
摘要： Provided are a radio frequency identification (RFID) tag and a wake-up method thereof. The RFID tag includes: a power source that supplies a driving voltage; a continuous wave detector that receives the driving voltage from the power supply so as to detect a continuous wave in a signal received from an RFID tag reader; a command detector that selectively receives the driving voltage and detects a command in the signal; and a controller that executes the command detected by the command detector by supplying the driving voltage to the command detector if the continuous wave is detected, and stops the driving voltage from being supplied to the command detector if no command is received from the command detector for a predetermined time period.
摘要翻译：提供射频识别（RFID）标签及其唤醒方法。 RFID标签包括：提供驱动电压的电源; 连续波检测器，其从所述电源接收所述驱动电压，以便检测从RFID标签读取器接收的信号中的连续波; 命令检测器，其选择性地接收所述驱动电压并检测所述信号中的命令; 以及控制器，如果检测到连续波，则执行由指令检测器检测到的指令，将驱动电压提供给指令检测器，并且如果没有从命令检测器接收到命令，则将驱动电压提供给命令检测器，预定时间段。

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