公开(公告)号：US20070069862A1

公开(公告)日：2007-03-29

申请号：US11525310

申请日：2006-09-22

Applicant: Hee-Sook Mo ,  Ji-Hoon Bae ,  Dong-Han Lee ,  Cheng-Hao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Hee-Sook Mo ,  Ji-Hoon Bae ,  Dong-Han Lee ,  Cheng-Hao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: H04Q5/22

CPC classification number: H04L69/18 ,  H04L67/32

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070052525A1

公开(公告)日：2007-03-08

申请号：US11592420

申请日：2006-11-03

Applicant: Chenghao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Chenghao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: H04Q5/22

CPC classification number: H04L63/0853 ,  H04W8/26 ,  H04W12/02 ,  H04W12/06 ,  H04W12/08 ,  H04W28/14 ,  H04W48/02

Abstract: Provided is a Radio Frequency identification (RFID) system and method for protecting information. The system includes: an identification information storing unit which includes identification information and generates an interrupt/interference signal to block access without permission; an RFID calling unit which reads information of the identification information storing unit by loading a basic protocol and a security protocol for recognizing the identification information storing unit; and a storing unit which registers and stores information required for authentication between the RFID calling unit and the identification information storing unit, and information required for access control.

Abstract translation: 提供了一种用于保护信息的射频识别（RFID）系统和方法。 该系统包括：识别信息存储单元，其包括识别信息，并产生中断/干扰信号，以在未经许可的情况下阻止访问; RFID呼叫单元，其通过加载基本协议和用于识别识别信息存储单元的安全协议来读取识别信息存储单元的信息; 以及存储单元，其登记并存储RFID呼叫单元与识别信息存储单元之间的认证所需的信息，以及访问控制所需的信息。

公开(公告)号：US20060145927A1

公开(公告)日：2006-07-06

申请号：US11297687

申请日：2005-12-07

Applicant: Won-Kyu Choi ,  Hae-Won Son ,  Je-Hoon Yun ,  Ji-Hoon Bae ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Won-Kyu Choi ,  Hae-Won Son ,  Je-Hoon Yun ,  Ji-Hoon Bae ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: H01Q1/38

CPC classification number: H01Q1/2225 ,  H01Q1/22 ,  H01Q9/0421 ,  H01Q9/045

Abstract: Provided is a planar inverted-F antenna (PIFA) which has a Co-Planar Waveguide (CPW) feeding structure and can be attached to a metal surface, and an RFID tag using the same. The PIFA includes a radiation patch layer; a Co-Planar Waveguide (CPW) feeding layer; a feeding probe; and a short-circuit. The CPW feeding layer includes a feeding means and a ground surface. The feeding probe electrically connects the radiation patch layer and the feeding means and provides a Radio Frequency (RF) signal to be radiated to the radiation patch layer. The short-circuiting means short-circuits the radiation patch layer and the ground surface through the dielectric layer. The PIFA can be applied to a passive RFID tag. Impedance matching between the antenna and the RFID chip is possible. Also, the PIFA can easily control resonant frequency of the antenna and reactance.

公开(公告)号：US20050088343A1

公开(公告)日：2005-04-28

申请号：US10830991

申请日：2004-04-22

Applicant: Ji-Hoon Bae ,  Cheol-Sig Pyo ,  You-Chung Chung ,  Jeong-Il Kim ,  Jae-Ick Choi ,  Chang-Joo Kim

Inventor： Ji-Hoon Bae ,  Cheol-Sig Pyo ,  You-Chung Chung ,  Jeong-Il Kim ,  Jae-Ick Choi ,  Chang-Joo Kim

IPC: H01Q5/00 ,  G01S7/40

CPC classification number: H01Q21/30 ,  H01Q5/00

Abstract: Provided is a method for designing multiband antenna using a genetic algorithm unit linked to an electromagnetic wave analyzing unit and to a computer-readable recording medium for recording a program that implements the method. The multiband antenna designing method can design an antenna having an optimal structure by combining a genetic algorithm, one of global optimization techniques, with a full electromagnetic wave analyzing program Quick Finite Difference Time Domain (QFDTD). The method of the present research includes the steps of: a) at the full electromagnetic wave analyzing unit, analyzing an antenna structure contained in an input file and linking the antenna structure to the genetic algorithm unit; b) at the genetic algorithm unit, generating an initial group that expresses the antenna structure; c) at the genetic algorithm unit, evaluating cost functions by using the antenna structure analysis result; and d) at the genetic algorithm unit, designing an antenna by selecting objects based on the cost functions, mating the selected objects and generating mutants.

公开(公告)号：US20130162401A1

公开(公告)日：2013-06-27

申请号：US13614331

申请日：2012-09-13

Applicant: Ji-Hoon Bae ,  Chan-Won Park ,  Hyung Chul Park ,  Jong-Suk Chae ,  Cheol Sig Pyo

Inventor： Ji-Hoon Bae ,  Chan-Won Park ,  Hyung Chul Park ,  Jong-Suk Chae ,  Cheol Sig Pyo

IPC: G06K7/01

CPC classification number: H04L27/2637 ,  G01S13/756 ,  G06K19/0724 ,  H04L25/0384 ,  H04L2027/0036 ,  H04L2027/0095

Abstract: A tag transmitting apparatus of a passive RFID system generates a plurality of orthogonal square waves, converts tag data to a plurality of parallel data, and transmits the plurality of parallel data to a reader using a plurality of square waves as a subcarrier.

Abstract translation: 无源RFID系统的标签发送装置生成多个正交方波，将标签数据转换为多个并行数据，并使用多个方波作为子载波将多个并行数据发送给读取器。

公开(公告)号：US08325868B2

公开(公告)日：2012-12-04

申请号：US12608862

申请日：2009-10-29

Applicant: Ji-hoon Bae ,  Gil-young Choi ,  Dong-han Lee ,  Hoon-gee Yang ,  Jong-suk Chae

Inventor： Ji-hoon Bae ,  Gil-young Choi ,  Dong-han Lee ,  Hoon-gee Yang ,  Jong-suk Chae

IPC: H04L7/02

CPC classification number: H04L7/042 ,  G06K19/0723

Abstract: A passive phase jitter modulation (PJM) tag is charged with power in a continuous wave (CW) section. When receiving a command from a reader, the passive PJM tag must recognize the command and determine exactly when to begin demodulating the command. Only then can the passive PJM tag demodulate the command. To this end, a synchronization apparatus for accurately demodulating a signal input to a PJM tag includes a plurality of correlators correlating a received phase jitter-modulated signal with a template of an internal matched filter which is in the same form as at least a portion of a modified frequency modulation (MFM) flag.

Abstract translation: 无源相位抖动调制（PJM）标签在连续波（CW）部分中被供电。 当从读取器接收到命令时，被动PJM标签必须识别该命令并准确地确定何时开始解调该命令。 无源PJM标签只能解调该命令。 为此，用于精确地解调输入到PJM标签的信号的同步装置包括将接收到的相位抖动调制信号与内部匹配滤波器的模板相关联的多个相关器，所述内部匹配滤波器的模板具有与至少一部分 修改的频率调制（MFM）标志。

公开(公告)号：US08264332B2

公开(公告)日：2012-09-11

申请号：US12348529

申请日：2009-01-05

Applicant: Ji-Hoon Bae ,  Donghan Lee ,  Won Kyu Choi ,  Cheng-Hao Quan ,  Gil Young Choi ,  Jong-Suk Chae

Inventor： Ji-Hoon Bae ,  Donghan Lee ,  Won Kyu Choi ,  Cheng-Hao Quan ,  Gil Young Choi ,  Jong-Suk Chae

IPC: G08B21/00

CPC classification number: H04L27/06 ,  H04L27/22 ,  H04Q2213/13095

Abstract: 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.

Abstract translation: 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：US07675403B2

公开(公告)日：2010-03-09

申请号：US11497749

申请日：2006-08-02

Applicant: ChengHao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： ChengHao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: H04Q5/22

CPC classification number: G06K7/0008 ,  H04W8/005 ,  H04W74/04 ,  H04W74/08

Abstract: Provided is a method for estimating the number of tags in a slotted Aloha-based RFID system, which can estimate the number of tags through a new statistical average scheme using the number of slots, the measured number of empty slots, and the measured number of ID slots. The estimating method includes the steps of: a) setting the number (N) of slots, the measured number (c0) of empty slots, and the measured number (c1) of ID slots as parameters; and estimating the number (n) of the tags by substituting the set values into n=(N−1)/(c0/c1).

Abstract translation: 提供了一种用于估计基于时隙的基于Aloha的RFID系统中的标签的数量的方法，其可以使用新的统计平均方案来估计标签的数量，该方案使用时隙数，所测量的空时隙数， ID插槽。 该估计方法包括以下步骤：a）将时隙数（N），空时隙的测量次数（c0）和ID时隙的测量次数（c1）设置为参数; 并且通过将设定值代入n =（N-1）/（c0 / c1）来估计标签的数量（n）。

公开(公告)号：US20100001843A1

公开(公告)日：2010-01-07

申请号：US12375137

申请日：2007-07-26

Applicant: Ji-Hoon Bae ,  Chan-Won Park

Inventor： Ji-Hoon Bae ,  Chan-Won Park

IPC: H04Q5/22

CPC classification number: H04B5/0062 ,  G06K7/0008 ,  G06K7/10198 ,  G06K7/10237 ,  G06K19/0723

Abstract: Provided are a reader-tag integrated RFID apparatus and a method for controlling the same. The apparatus includes a tag unit for communicating with an external reader, and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader, a reader unit for selecting a channel between other reader and the reader-tag integrated RFID apparatus with a different delay time, and communicating with an external tag using a random value to minimize collision; and a controller for selectively activating one of the tag unit and the reader unit if it necessary.

Abstract translation: 提供了一种读写器集成RFID装置及其控制方法。 该装置包括用于与外部读取器进行通信的标签单元，并将响应信号和对应于从外部读取器发送的信号的数据发送到外部读取器;读取单元，用于选择其他读取器与读取器标签之间的通道集成 具有不同延迟时间的RFID装置，并且使用随机值与外部标签通信以最小化碰撞; 以及如果需要，选择性地激活标签单元和读取器单元中的一个的控制器。

公开(公告)号：US20070069852A1

公开(公告)日：2007-03-29

申请号：US11525393

申请日：2006-09-22

Applicant: Hee-Sook Mo ,  Ji-Hoon Bae ,  Dong-Han Lee ,  Chenghao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Hee-Sook Mo ,  Ji-Hoon Bae ,  Dong-Han Lee ,  Chenghao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: G05B19/00

CPC classification number: H04L9/3271 ,  H04L9/3226 ,  H04L9/3236 ,  H04L2209/805

Abstract: Provided is a method for securing information between a Radio Frequency Identification (RFID) reader and tag, and an RFID Reader and tag using the same. The method includes the steps of: a) requesting an access password of the RFID tag in the RFID reader; b) extracting a key value mapped to the access password transmitted from the RFID tag and transmitting the key value to the RFID tag in the RFID reader; c) outputting a hash function value from the key value transmitted from the RFID reader in the RFID tag; and d) determining whether to allow the RFID reader to access to an RFID tag memory based on whether the outputted hash function value is the same as the access password of the RFID tag.

Abstract translation: 提供了一种用于确保射频识别（RFID）读取器和标签之间的信息以及使用其的RFID读取器和标签的方法。 该方法包括以下步骤：a）请求RFID读取器中RFID标签的访问密码; b）提取映射到从RFID标签发送的访问密码的密钥值，并将该密钥值发送到RFID读取器中的RFID标签; c）从RFID标签中从RFID读取器发送的键值输出散列函数值; 以及d）基于输出的散列函数值是否与RFID标签的访问密码相同，确定是否允许RFID读取器访问RFID标签存储器。