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公开(公告)号：WO2009113825A2
公开(公告)日：2009-09-17
申请号：PCT/KR2009/001253
申请日：2009-03-12
IPC: G06K7/00
CPC classification number: G06K7/0008 , G06K7/10019 , H04W74/00
Abstract: 본 발명은 충돌 타입의 식별 기능을 갖는 RFID 리더 및 그 제어방법에 관한 것으로, RF 통신부에 수신된 신호의 데이터를 분석하여 수신신호의 충돌발생 여부를 확인하고, 해당 RFID 리더와 다른 RFID 리더 또는 태그 중 충돌 발생 수단에 따른 충돌 타입을 진단하여 대응하는 충돌 해결 동작을 수행하도록 한다. 본 발명에 따르면, RFID 리더와 태그 사이에서 발생되는 모든 타입의 충돌에 대한 식별이 가능하므로, 충돌 발생 원인을 빠르게 인지할 수 있어 충돌 발생 원인에 대처할 수 있게 된다. 또한, RFID 리더를 구비한 모바일 어플리케이션에서 충돌이 감지된 경우, 해당 충돌 타입에 대응하는 충돌 제어를 처리함으로써, 이미 시작된 인벤토리 라운드(inventory round)를 성공적으로 종료할 수 있는 이점이 있다.
Abstract translation: 公开了具有碰撞型识别功能的RFID询问器及其控制方法。 它通过分析从RF通信单元接收的信号的数据来验证接收信号中是否发生冲突，并且通过根据相应的RFID询问器和其他的RFID询问器之间的冲突产生装置诊断碰撞类型来执行相应的冲突解决操作 询问器或标签。 由于可以识别RFID询问器和标签之间发生的所有类型的冲突，因此可以快速识别冲突发生的原因以应对碰撞的原因。
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公开(公告)号：KR1020140040551A
公开(公告)日：2014-04-03
申请号：KR1020120107399
申请日：2012-09-26
Applicant: 한국전자통신연구원 , 전북대학교산학협력단
IPC: H01Q7/00 , H01Q1/24 , G06K19/077
CPC classification number: H01Q7/00 , H01Q1/2216
Abstract: The present invention relates to a loop antenna. The loop antenna according to the embodiment of the present invention includes a first loop and a second loop which are composed of respective conductive lines. At this time, the second loop is composed of a dual loop with current paths of opposite directions. The second loop partially crosses the first loop. A first voltage source and a second voltage source alternatively supply feeding signals to the first loop and the second loop.
Abstract translation: 环形天线技术领域本发明涉及环形天线。 根据本发明的实施例的环形天线包括由相应的导线组成的第一环和第二环。 此时，第二回路由具有相反方向的电流路径的双回路组成。 第二回路部分地跨越第一回路。 第一电压源和第二电压源交替地将馈送信号提供给第一环路和第二环路。
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公开(公告)号：KR1020130075544A
公开(公告)日：2013-07-05
申请号：KR1020110143940
申请日：2011-12-27
Applicant: 한국전자통신연구원 , 서울과학기술대학교 산학협력단
CPC classification number: H04L27/2637 , G01S13/756 , G06K19/0724 , H04L25/0384 , H04L2027/0036 , H04L2027/0095
Abstract: PURPOSE: A tag transmission device and a method thereof are provided to improve bandwidth efficiency in a passive RFID system. CONSTITUTION: A data memory (110) stores data of articles on which an identifier of a tag and the tag are attached. A packet forming unit (120) outputs tag data stored in the data memory to a multiplexer (140). A preamble signal generator (130) generates a preamble indicating the start of a packet and delivers the preamble to the multiplexer. A demultiplexer converts serial data into multiple parallel data and outputs the data. A square wave generator generates a square wave of respectively set frequencies and outputs the square wave to a multiplier (170). The multiplier multiplies a sub-carrier of the corresponding square wave by the parallel data inputted from the demultiplexer and outputs to each load modulator (180). The load modulator modulates the sub-carrier multiplied by the parallel data and outputs through a tag antenna (190). The tag antenna outputs a signal of the sub-carrier modulated by the load modulator. [Reference numerals] (110) Data memory; (120) Packet forming unit; (130) Preamble signal generator; (140) Multiplexer; (170) Multiplier; (180) Load modulator; (AA) Demultiplexer; (BB,CC,DD) Square wave generator
Abstract translation: 目的：提供一种标签传输设备及其方法，以提高无源RFID系统的带宽效率。 构成：数据存储器（110）存储附有标签和标签的标识符的物品的数据。 分组形成单元（120）将存储在数据存储器中的标签数据输出到多路复用器（140）。 前导码信号发生器（130）产生指示分组开始的前导码，并将前导码传送到复用器。 解复用器将串行数据转换成多个并行数据并输出数据。 方波发生器产生分别设定的频率的方波，并将方波输出到乘法器（170）。 乘法器将相应方波的副载波乘以从解复用器输入的并行数据，并输出到每个负载调制器（180）。 负载调制器调制副载波乘以并行数据并通过标签天线输出（190）。 标签天线输出由负载调制器调制的副载波的信号。 （附图标记）（110）数据存储器; （120）分组形成单元; （130）前导信号发生器; （140）多路复用器 （170）乘数; （180）负载调制器; （AA）解复用器; （BB，CC，DD）方波发生器
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Patent Agency Ranking
公开(公告)号：KR1020120129562A
公开(公告)日：2012-11-28
申请号：KR1020110047900
申请日：2011-05-20
Applicant: 한국전자통신연구원 , 서울과학기술대학교 산학협력단
CPC classification number: H04L1/0039 , H04B5/02
Abstract: PURPOSE: A preamble detector for a data encoding desorption signal is provided to effectively detect preambles which is defined in a half bit. CONSTITUTION: A correlation apparatus(410) calculates a correlation between reference signals which maintain an input signal during a half bit. A sampling apparatus(420) samples a correlation result in the half bit. A code determination unit determines the code of the sampled correlation results. A code storage unit stores the determined code. A signal comparison unit calculates a correlation between a preamble code and the stored code. The signal comparison unit determines a preamble detection point when the calculated correlation is the maximum. [Reference numerals] (430) Bit verifying apparatus
Abstract translation: 目的：提供用于数据编码解吸信号的前导码检测器，以有效地检测以半位定义的前导码。 构成：相关装置（410）计算在半位内保持输入信号的参考信号之间的相关性。 采样装置（420）对半位的相关结果进行采样。 代码确定单元确定采样的相关结果的代码。 代码存储单元存储确定的代码。 信号比较单元计算前导码和存储码之间的相关性。 当所计算的相关性为最大时，信号比较单元确定前导码检测点。 （附图标记）（430）位验证装置
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公开(公告)号：KR101182837B1
公开(公告)日：2012-09-14
申请号：KR1020090027029
申请日：2009-03-30
Applicant: 한국전자통신연구원
Abstract: 수동형 RFID 환경에서 coherent 신호 검출을 위한 RFID 리더 복조 장치 및 복조 방법이 개시된다. 구체적으로, 본 발명의 일 양상에 따라 태그 신호에 포함된 DC 오프셋 왜곡 잡음을 제거하고, DC 오프셋 왜곡 잡음이 제거된 태그 신호에서 캐리어 신호를 제거한 후, coherent detection을 위한 위상 정보를 검출한다. 따라서 송신 에너지에 의해 태그 신호에 왜곡이 발생하더라도 유효한 태그 정보를 효율적으로 추출하는 것이 가능하다.
RFID, 리더, 태그, coherent detection, DC-offset noise-
公开(公告)号：KR1020110056891A
公开(公告)日：2011-05-31
申请号：KR1020090113391
申请日：2009-11-23
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: H04L27/22
CPC classification number: H04L27/2278
Abstract: PURPOSE: A correlator used in a phase jitter modulation of a demodulation apparatus is provided to obtain an optimal performance in a BER(bit error rate) view point by considering a phase jitter modulation property. CONSTITUTION: A correlator(100) comprises a template(110) and an extractor(120). The template has a set value of a standard sampling about the modulated signal of a phase jitter modulation system. An extractor extracts a consistency rate value which expresses the degree of the consistency by comparing the modulation signal of a sampled phase jitter modulation method.
Abstract translation: 目的：提供在解调装置的相位抖动调制中使用的相关器，以通过考虑相位抖动调制特性在BER（误码率）视点中获得最佳性能。 构成：相关器（100）包括模板（110）和提取器（120）。 模板具有关于相位抖动调制系统的调制信号的标准采样的设定值。 提取器通过比较采样的相位抖动调制方法的调制信号来提取表示一致性程度的一致率值。
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公开(公告)号：KR1020110028122A
公开(公告)日：2011-03-17
申请号：KR1020090086062
申请日：2009-09-11
Applicant: 한국전자통신연구원
IPC: H04B5/02
CPC classification number: H04L27/06 , H04L25/061 , H04L27/22
Abstract: PURPOSE: An RFID reader demodulating device in an RFID environment and a method thereof are provided to exactly detect tag information. CONSTITUTION: A DC offset canceling device(410) removes DC offset distortion noise. A sub carrier digital demodulating unit(418) demodulates a sub carrier by removing the sub carrier. A matched filter(406) restricts noise component. A level determining device(412) removes low noise. A low pass filter(414) generates a baseband signal.
Abstract translation: 目的：提供RFID环境中的RFID读取器解调装置及其方法，以精确地检测标签信息。 构成：DC偏移消除装置（410）去除DC偏移失真噪声。 子载波数字解调单元（418）通过去除子载波来解调子载波。 匹配滤波器（406）限制噪声分量。 电平确定装置（412）去除低噪声。 低通滤波器（414）产生基带信号。
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公开(公告)号：KR1020100070114A
公开(公告)日：2010-06-25
申请号：KR1020080128719
申请日：2008-12-17
Applicant: 한국전자통신연구원
CPC classification number: G06K17/0029 , G06K7/10148 , G06K7/10297 , G06K19/07758 , G06K2017/0051 , H01Q1/2216 , H01Q1/38 , H01Q21/065
Abstract: PURPOSE: An item management system using near-field RFID are provided to accurately recognize and manage plural individual products close to each other by providing uniform near-field distribution. CONSTITUTION: A tag(110) includes a tag antenna and a tag chip and is attached to an individual product, and a conductive pattern layer for a tag antenna is formed on a film substrate. A first slot is prepared in the conductive pattern layer. The first slot is used for the impedance matching and emission field control with the tag chip. An RFID reader reads out the information from the tag, and a reader antenna(120) performs the communication with the RFID reader and is installed inside a shelf(10).
Abstract translation: 目的：提供使用近场RFID的物品管理系统，通过提供均匀的近场分布来准确识别和管理靠近彼此的多个单独产品。 构成：标签（110）包括标签天线和标签芯片，并且附接到单个产品，并且在薄膜基板上形成用于标签天线的导电图案层。 在导电图案层中制备第一槽。 第一个插槽用于与标签芯片的阻抗匹配和发射场控制。 RFID读取器从标签读出信息，并且读取器天线（120）执行与RFID读取器的通信，并且安装在架子（10）内。
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