公开(公告)号：US20110148599A1

公开(公告)日：2011-06-23

申请号：US12913347

申请日：2010-10-27

申请人： Chan Won Park ,  Man Sik Park ,  Ji Hoon Bae ,  Dong Han Lee ,  Kwang Soo Cho ,  Won Kyu Choi ,  Cheng Hao Quan ,  Jeong Seok Kim ,  Gil Young Choi ,  Jong Suk Chae

发明人： Chan Won Park ,  Man Sik Park ,  Ji Hoon Bae ,  Dong Han Lee ,  Kwang Soo Cho ,  Won Kyu Choi ,  Cheng Hao Quan ,  Jeong Seok Kim ,  Gil Young Choi ,  Jong Suk Chae

IPC分类号： H04Q5/22

CPC分类号： G06K7/10029 ,  G06K7/10039

摘要： The RFID reader of an RFID system includes a processor for processing a command for the RFID tag and a response from the RFID tag, a modem for modulating the command from the processor or demodulating the response from the RFID, and an RF unit for transmitting the modulated command transferred from the modem to the RFID tag or receiving the response from the RFID tag and transferring the response to the modem. The RFID tag of the RFID system includes a power supply unit for generating energy using a radio wave received from the RFID reader, a receiver for demodulating a signal received from the RFID reader, a data processor for performing operation according to the signal demodulated by the receiver, and a transmitter for backscattering a signal from the data processor.

摘要翻译： RFID系统的RFID读取器包括用于处理用于RFID标签的命令和来自RFID标签的响应的处理器，用于调制来自处理器的命令的调制解调器或解调来自RFID的响应的调制解调器，以及RF单元，用于发送 调制命令从调制解调器传送到RFID标签或从RFID标签接收响应并将响应传送到调制解调器。 RFID系统的RFID标签包括用于使用从RFID读取器接收的无线电波产生能量的电源单元，用于解调从RFID读取器接收的信号的接收器，用于根据由所述RFID读取器解调的信号执行操作的数据处理器 接收器和用于从数据处理器反向散射信号的发射器。

公开(公告)号：US20110074555A1

公开(公告)日：2011-03-31

申请号：US12859799

申请日：2010-08-20

申请人： Chan-Won Park ,  Man Sik Park ,  Ji-Hoon Bae ,  Donghan Lee ,  Kwang-Soo Cho ,  Won Kyu Choi ,  Cheng-Hao Quan ,  Jeong seok Kim ,  Gil Young Choi ,  Jong-Suk Chae

发明人： Chan-Won Park ,  Man Sik Park ,  Ji-Hoon Bae ,  Donghan Lee ,  Kwang-Soo Cho ,  Won Kyu Choi ,  Cheng-Hao Quan ,  Jeong seok Kim ,  Gil Young Choi ,  Jong-Suk Chae

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008 ,  G06K7/10297

摘要： Provided are a mobile Radio Frequency Identification (RFID) device and a data communication method thereof. In the method, a mobile communication terminal unit provides a command to an mRFID reader unit and receives a response to the command from the mRFID reader unit. It is checked whether there is an error in a protocol message of the command or the response, and the command to the mRFID reader unit according to a check result is re-transmitted.

摘要翻译： 提供了一种移动射频识别（RFID）设备及其数据通信方法。 在该方法中，移动通信终端单元向mRFID读取器单元提供命令，并且从mRFID读取器单元接收对该命令的响应。 检查命令或响应的协议消息中是否存在错误，并且重新发送根据检查结果对mRFID读取器单元的命令。

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。

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。

公开(公告)号：US08717147B2

公开(公告)日：2014-05-06

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： H04Q5/22

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。

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。

公开(公告)号：US08666323B2

公开(公告)日：2014-03-04

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： H04B17/00

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。

公开(公告)号：US08264332B2

公开(公告)日：2012-09-11

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： G08B21/00

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。

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。

公开(公告)号：US08174390B2

公开(公告)日：2012-05-08

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

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。