公开(公告)号：US08669904B2

公开(公告)日：2014-03-11

申请号：US13292842

申请日：2011-11-09

申请人： Won Kyu Choi ,  Jae Young Jung ,  Jong Suk Chae

发明人： Won Kyu Choi ,  Jae Young Jung ,  Jong Suk Chae

IPC分类号： H01Q1/38

CPC分类号： H01Q1/38 ,  H01Q13/10 ,  H01Q21/064

摘要： The present invention relates to a near-field antenna. In an aspect, the near-field antenna may include a dielectric layer, a ground plane formed on one side of the dielectric layer, a plurality of U-shaped slots periodically disposed in the ground plane for radiation, and a microstrip line provided on the other side of the dielectric layer for power feeding. In another aspect, the near-field antenna may include a dielectric layer, a ground plane formed on one side of the dielectric layer, a plurality of U-shaped slots periodically disposed in the ground plane for radiation, and a microstrip line configured to have a plurality of U-shaped slots diverged on the other side of the dielectric layer in parallel for power feeding, have the plurality of U-shaped slots periodically disposed in series in respective diverged lines, and have an end shorted to form standing waves.

摘要翻译： 本发明涉及近场天线。 一方面，近场天线可以包括电介质层，形成在电介质层的一侧上的接地平面，周期性地设置在用于辐射的接地平面中的多个U形槽，以及设置在该场上的微带线 用于供电的电介质层的另一侧。 在另一方面，近场天线可以包括电介质层，形成在电介质层的一侧上的接地平面，周期性地设置在用于辐射的接地平面中的多个U形槽，以及微带线，其被配置为具有 在电介质层的另一侧平行分配用于供电的多个U形槽，其多个U形槽周期性地分布在相应的发散线上，并且端部短路以形成驻波。

公开(公告)号：US09117127B2

公开(公告)日：2015-08-25

申请号：US13605510

申请日：2012-09-06

申请人： Jae-young Jung ,  Won Kyu Choi ,  Kyu Won Han ,  Chan-Won Park ,  Jong-Suk Chae ,  Cheol Sig Pyo

发明人： Jae-young Jung ,  Won Kyu Choi ,  Kyu Won Han ,  Chan-Won Park ,  Jong-Suk Chae ,  Cheol Sig Pyo

IPC分类号： H04Q5/22 ,  G06K7/10 ,  G06K17/00

CPC分类号： G06K7/10356 ,  G06K2017/0051

摘要： A radio frequency identification (RFID) smart shelf system manages a product through communication with an RFID tag that is attached to the product on a shelf, and includes an RFID reader, a plurality of reader antennas, and an RF switch that is connected between the RFID reader and the plurality of reader antennas. The RF switch periodically varies a phase difference between RF signals of a portion of a plurality of output connection ports that set a connection to each of the plurality of reader antennas.

摘要翻译： 无线射频识别（RFID）智能货架系统通过与附在货架上的产品的RFID标签进行通信来管理产品，并且包括RFID阅读器，多个阅读器天线以及连接在 RFID读取器和多个读取器天线。 RF开关周期性地改变设置与多个读取器天线中的每一个的连接的多个输出连接端口的一部分的RF信号之间的相位差。

公开(公告)号：US20130154804A1

公开(公告)日：2013-06-20

申请号：US13605510

申请日：2012-09-06

申请人： Jae-young Jung ,  Won Kyu Choi ,  Kyu Won Han ,  Chan-Won Park ,  Jong-Suk Chae ,  Cheol Sig Pyo

发明人： Jae-young Jung ,  Won Kyu Choi ,  Kyu Won Han ,  Chan-Won Park ,  Jong-Suk Chae ,  Cheol Sig Pyo

IPC分类号： G06K7/01

CPC分类号： G06K7/10356 ,  G06K2017/0051

摘要： A radio frequency identification (RFID) smart shelf system manages a product through communication with an RFID tag that is attached to the product on a shelf, and includes an RFID reader, a plurality of reader antennas, and an RF switch that is connected between the RFID reader and the plurality of reader antennas. The RF switch periodically varies a phase difference between RF signals of a portion of a plurality of output connection ports that set a connection to each of the plurality of reader antennas.

摘要翻译： 无线射频识别（RFID）智能货架系统通过与附在货架上的产品的RFID标签进行通信来管理产品，并且包括RFID阅读器，多个阅读器天线以及连接在 RFID读取器和多个读取器天线。 RF开关周期性地改变设置与多个读取器天线中的每一个的连接的多个输出连接端口的一部分的RF信号之间的相位差。

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：US08098201B2

公开(公告)日：2012-01-17

申请号：US12135851

申请日：2008-06-09

申请人： Won Kyu Choi ,  Jeong Seok Kim ,  Gil Young Choi ,  Hae Won Son ,  Cheol Sig Pyo ,  Jong-Suk Chae

发明人： Won Kyu Choi ,  Jeong Seok Kim ,  Gil Young Choi ,  Hae Won Son ,  Cheol Sig Pyo ,  Jong-Suk Chae

IPC分类号： H01Q1/38

CPC分类号： H01Q1/2225 ,  H01Q9/0414 ,  H01Q13/10

摘要： An RFID tag includes an antenna and a chip, and the antenna includes a first polygonal dielectric material, first and second microstrip lines partially formed in the first dielectric material, a second polygonal dielectric material stacked on the first dielectric material, and a third microstrip line partially formed in the second dielectric material. According to the present invention, the RFID tag can efficiently receive electromagnetic waves to thereby maximize a readable range.

摘要翻译： RFID标签包括天线和芯片，并且天线包括第一多边形电介质材料，部分地形成在第一电介质材料中的第一和第二微带线，堆叠在第一电介质材料上的第二多边形电介质材料和第三微带线 部分地形成在第二电介质材料中。 根据本发明，RFID标签可以有效地接收电磁波，从而使可读范围最大化。

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。

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：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：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。