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11. 发明授权

US08054161B2 Apparatus and method for transmit leakage signal suppression in RFID reader 失效
标题翻译： RFID读写器中传输泄漏信号抑制的装置和方法
公开(公告)号：US08054161B2
公开(公告)日：2011-11-08
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 , G08B1/08 , H04K3/00 , H04B17/00 , H04B1/04 , H04B1/10
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。

12. 发明申请

US20110148585A1 PASSIVE RFID SYSTEM AND METHOD 失效
标题翻译：被动RFID系统和方法
公开(公告)号：US20110148585A1
公开(公告)日：2011-06-23
申请号：US12886689
申请日：2010-09-21
申请人： Ji Hoon Bae , Cheng Hao Quan , Dong Han Lee , Chan Won Park , Won Kyu Choi , Kwang Soo Cho , Man Sik Park , Gil Young Choi , Jong Suk Chae
发明人： Ji Hoon Bae , Cheng Hao Quan , Dong Han Lee , Chan Won Park , Won Kyu Choi , Kwang Soo Cho , Man Sik Park , Gil Young Choi , Jong Suk Chae
IPC分类号： G06K7/01
CPC分类号： G06K7/0008 , G06K7/10069
摘要： Disclosed are a passive RFID (Radio Frequency Identification) system and method capable of recognizing a great deal of tags at a high speed. A reader of a passive RFID system, including: a processor dividing slots and subchannels to configure a round, recognizing subchannels that are not involved in a collision and interference by the slots, and changing the subchannels that are not involved in a collision and interference, into a sleep state; a transmission unit encoding a command generated through the processor, performing an amplitude jitter modulation on the encoded command, and transmitting the modulated command; and a reception unit acquiring and demodulating tag signals received through a plurality of subchannels by the slots, and providing the demodulated tag signals to the processor.
摘要翻译：公开了能够高速识别大量标签的无源RFID（射频识别）系统和方法。一种无源RFID系统的阅读器，包括：处理器分割时隙和子信道以配置轮回，识别未被时隙的冲突和干扰的子信道，以及改变不涉及冲突和干扰的子信道，进入睡眠状态; 编码通过所述处理器生成的命令的传输单元，对所述编码命令执行振幅抖动调制，以及发送所述调制命令; 以及接收单元，通过所述时隙获取并解调通过多个子信道接收的标签信号，并将解调的标签信号提供给处理器。

13. 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。

14. 发明申请

US20080122581A1 PASSIVE RFID READER AND OPERATION CONTROL METHOD THEREFOR 失效
标题翻译：被动RFID阅读器及其操作控制方法
公开(公告)号：US20080122581A1
公开(公告)日：2008-05-29
申请号：US11746306
申请日：2007-05-09
申请人： Ji-Hoon BAE , Hee-Sook MO , Dong-Han LEE , Cheng-Hao QUAN , Chan-Won PARK , Gil-Young CHOI , Cheol-Sig PYO , Jong-Suk CHAE
发明人： Ji-Hoon BAE , Hee-Sook MO , Dong-Han LEE , Cheng-Hao QUAN , Chan-Won PARK , Gil-Young CHOI , Cheol-Sig PYO , Jong-Suk CHAE
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10356 , H04W74/08
摘要： Provided is a Radio Frequency Identification (RFID) reader that can minimize collision among RFID readers in an environment where there are a plurality of RFID readers within a limited operating environment by making each RFID reader select a channel at different delay time based on a random value, and a method for controlling operation of the RFID reader. The RFID reader includes a random value generating unit; a reader control unit for adaptively deciding a counter value for generating the random value; an anti-collision unit for preventing collision among a plurality of tags; a reader transmitting unit for generating a reader command message determined by the anti-collision unit, encoding the reader command message, and modulating the reader command message; a reader receiving unit for demodulating and decoding a tag signal; and a channel operation control unit for selecting a channel to be used for the communication with the tag.
摘要翻译：提供了一种射频识别（RFID）读取器，其可以在有限操作环境中存在多个RFID读取器的环境中最小化RFID读取器之间的冲突，使得每个RFID读取器基于随机值在不同的延迟时间选择信道以及用于控制RFID读取器的操作的方法。 RFID读取器包括随机值生成单元; 读取器控制单元，用于自适应地确定用于生成随机值的计数器值; 用于防止多个标签之间的碰撞的防碰撞单元; 读取器发送单元，用于生成由反冲突单元确定的读取器命令消息，对读取器命令消息进行编码，以及调制读取器命令消息; 读取器接收单元，用于解调和解码标签信号; 以及频道操作控制单元，用于选择要用于与标签进行通信的频道。

15. 发明申请

US20080024275A1 METHOD FOR IDENTIFYING MULTIPLE MOVING TAGS WITH MULTIPLE READERS 失效
标题翻译：用于识别多个读取器的多个移动标签的方法
公开(公告)号：US20080024275A1
公开(公告)日：2008-01-31
申请号：US11828703
申请日：2007-07-26
申请人： Cheng Hao QUAN , Hee-Sook Mo , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
发明人： Cheng Hao QUAN , Hee-Sook Mo , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
IPC分类号： H04B7/00
CPC分类号： G06K7/0008 , G06K7/10356
摘要： Disclosed is a method for identifying a plurality of moving tags by using a plurality of Radio Frequency Identification (RFID) readers. The technology of the present invention efficiently identifies multiple moving tags to thereby improve the identification rate and reading speed of an RFID system and increase the throughput of the RFID system. The method for identifying a plurality of moving tags by using a plurality of Radio Frequency Identification (RFID) readers includes the steps of: a) grouping the multiple tags into a predetermined number of tag groups; b) allocating the tag groups to the RFID readers respectively; and c) identifying tags of each allocated tag group in each RFID reader.
摘要翻译：公开了一种通过使用多个射频识别（RFID）读取器识别多个移动标签的方法。本发明的技术有效地识别多个移动标签，从而提高RFID系统的识别率和读取速度，并提高RFID系统的吞吐量。通过使用多个射频识别（RFID）读取器来识别多个移动标签的方法包括以下步骤：a）将多个标签分组成预定数量的标签组; b）分别将标签组分配给RFID阅读器; 以及c）识别每个RFID读取器中每个分配的标签组的标签。

16. 发明申请

US20070069862A1 Apparatus and method for reading multiple tags with different protocols in RFID system 审中-公开
标题翻译：在RFID系统中读取不同协议的多个标签的装置和方法
公开(公告)号：US20070069862A1
公开(公告)日：2007-03-29
申请号：US11525310
申请日：2006-09-22
申请人： Hee-Sook Mo , Ji-Hoon Bae , Dong-Han Lee , Cheng-Hao Quan , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
发明人： Hee-Sook Mo , Ji-Hoon Bae , Dong-Han Lee , Cheng-Hao Quan , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
IPC分类号： H04Q5/22
CPC分类号： H04L69/18 , H04L67/32
摘要： An apparatus and method for reading multiple tags with different protocols in a RFID system are provided. The method of reading multiple tags with different protocols in a RFID system including the steps of: a) setting scheduling parameters including target protocols to read, priorities of each protocol, and information about a scheduling algorithm mode for reading multiple tags; b) reading tags of a single protocol corresponding to the target protocol when the scheduling algorithm mode is a single mode; and c) reading multiple tags by the target protocols when the scheduling algorithm mode is a multi mode.
摘要翻译：提供了一种用于在RFID系统中读取具有不同协议的多个标签的装置和方法。在RFID系统中读取具有不同协议的多个标签的方法，包括以下步骤：a）设置包括目标协议读取的调度参数，每个协议的优先级以及关于读取多个标签的调度算法模式的信息; b）当调度算法模式为单一模式时，读取与目标协议对应的单个协议的标签; 以及c）当调度算法模式为多模式时，通过目标协议读取多个标签。

17. 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。

18. 发明申请

US20110096883A1 SYMBOL SYNCHRONIZATION APPARATUS AND METHOD OF PASSIVE RFID READER 有权
标题翻译：无源RFID阅读器的符号同步装置和方法
公开(公告)号：US20110096883A1
公开(公告)日：2011-04-28
申请号：US12832914
申请日：2010-07-08
申请人： Ji Hoon Bae , Dong Han Lee , Kwang Soo Cho , Won Kyu Choi , Man Sik Park , Chan Won Park , Cheng Hao Quan , Gil Young Choi , Jong Suk Chae
发明人： Ji Hoon Bae , Dong Han Lee , Kwang Soo Cho , Won Kyu Choi , Man Sik Park , Chan Won Park , Cheng Hao Quan , Gil Young Choi , Jong Suk Chae
IPC分类号： H04L7/02
CPC分类号： H04L7/042 , H04L7/10 , H04L27/2605 , H04L27/2662
摘要： Provided is a symbol synchronization apparatus and method of a passive REID reader. The symbol synchronization apparatus includes: an edge clock detector generating edge clocks by detecting phase inversion positions of a received signal; a preamble detector detecting a preamble section by analyzing the generation times of the edge clocks; a symbol decision time extractor extracting a symbol decision time by averaging distances between the edge clocks consecutively generated in the preamble section, when the preamble section is detected; and a symbol decider deciding a symbol by analyzing the magnitude of the received signal, when the time reaches the symbol decision time.
摘要翻译：提供了一种被动REID读取器的符号同步装置和方法。符号同步装置包括：边缘时钟检测器，通过检测接收信号的相位位置来产生边沿时钟; 前同步码检测器，通过分析边缘时钟的生成时间来检测前导码部分; 符号决定时间提取器，当检测到所述前导码部分时，通过平均在所述前导码部分中连续生成的边缘时钟之间的距离来提取符号判定时间; 以及当时间到达符号决定时间时，通过分析接收信号的大小来确定符号的符号判定器。

19. 发明授权

US08724761B2 Symbol synchronization apparatus and method of passive RFID reader 有权
标题翻译：无源RFID阅读器的符号同步装置和方法
公开(公告)号：US08724761B2
公开(公告)日：2014-05-13
申请号：US12832914
申请日：2010-07-08
申请人： Ji Hoon Bae , Dong Han Lee , Kwang Soo Cho , Won Kyu Choi , Man Sik Park , Chan Won Park , Cheng Hao Quan , Gil Young Choi , Jong Suk Chae
发明人： Ji Hoon Bae , Dong Han Lee , Kwang Soo Cho , Won Kyu Choi , Man Sik Park , Chan Won Park , Cheng Hao Quan , Gil Young Choi , Jong Suk Chae
IPC分类号： H04L7/02
CPC分类号： H04L7/042 , H04L7/10 , H04L27/2605 , H04L27/2662
摘要： Provided is a symbol synchronization apparatus and method of a passive RFID reader. The symbol synchronization apparatus includes: an edge clock detector generating edge clocks by detecting phase inversion positions of a received signal; a preamble detector detecting a preamble section by analyzing the generation times of the edge clocks; a symbol decision time extractor extracting a symbol decision time by averaging distances between the edge clocks consecutively generated in the preamble section, when the preamble section is detected; and a symbol decider deciding a symbol by analyzing the magnitude of the received signal, when the time reaches the symbol decision time.
摘要翻译：提供了一种无源RFID读取器的符号同步装置和方法。符号同步装置包括：边缘时钟检测器，通过检测接收信号的相位位置产生边沿时钟; 前同步码检测器，通过分析边缘时钟的生成时间来检测前导码部分; 符号决定时间提取器，当检测到所述前导码部分时，通过平均在所述前导码部分中连续生成的边缘时钟之间的距离来提取符号判定时间; 以及当时间到达符号决定时间时，通过分析接收信号的大小来确定符号的符号判定器。

20. 发明申请

US20120112889A1 OPERATION METHOD OF AN RFID TAG, OPERATION METHOD OF AN RFID READER, RFID TAG, AND RFID READER 审中-公开
标题翻译： RFID标签的操作方法，RFID读取器的操作方法，RFID标签和RFID读取器
公开(公告)号：US20120112889A1
公开(公告)日：2012-05-10
申请号：US13383545
申请日：2010-07-23
申请人： Hee Sook Mo , Cheng Hao Quan , Jae Gak Hwang , Cheol Sig Pyo , Jong Suk Chae
发明人： Hee Sook Mo , Cheng Hao Quan , Jae Gak Hwang , Cheol Sig Pyo , Jong Suk Chae
IPC分类号： G06K7/01
CPC分类号： H04B5/0062 , H04B5/0031
摘要： The present invention is enables the high-speed download of a large volume of data stored in a tag memory without a remarkable change in conventional wireless communication techniques. According to one aspect of the present invention, an RFID tag comprises; a transmitting unit for transmitting a download command for instructing the download of tag data stored in a user memory bank of the RFID tag; and a receiving unit for receiving, from the RFID tag, tag data in a plurality of record block units, each of which is smaller than the size of the memory bank.
摘要翻译：本发明使得能够高速下载存储在标签存储器中的大量数据，而无需传统无线通信技术的显着变化。根据本发明的一个方面，RFID标签包括：发送单元，用于发送用于指示下载存储在RFID标签的用户存储体中的标签数据的下载命令; 以及接收单元，用于从RFID标签接收多个记录块单元中的每个都小于存储体大小的标签数据。

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