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公开(公告)号：KR1020150004497A
公开(公告)日：2015-01-13
申请号：KR1020130077379
申请日：2013-07-02
Applicant: 한국전자통신연구원 , 서울과학기술대학교 산학협력단
CPC classification number: G06K7/10366 , G06K7/10059
Abstract: 수동형 RFID(Radio Frequency Identification) 시스템의 태그 송신 장치는 파일럿 톤, 프리앰블 및 SFD(Start Frame Delimiter)를 생성하고, 상기 파일럿 톤, 프리앰블 및 SFD를 각각 상기 복수의 구형파 중 하나의 구형파를 이용하여 전송한다.
Abstract translation: 无源射频识别（RFID）系统的标签发送装置生成导频音，前导码和起始帧定界符（SFD），并使用多个正方形中的一个发送导频音，前同步码和SFD 波浪。
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公开(公告)号：KR1020130047561A
公开(公告)日：2013-05-08
申请号：KR1020120087810
申请日：2012-08-10
Applicant: 한국전자통신연구원 , 서울과학기술대학교 산학협력단
IPC: G06K19/077 , G06K17/00
CPC classification number: H04L1/0045 , H04L25/4917 , H04L27/34
Abstract: PURPOSE: An RFID(Radio Frequency IDentification) system and a communication method thereof are provided to improve communication performance of high speed transmission by using an M-PAM(Pulse Amplitude Modulation) method, an M-QAM(Quadrature Amplitude Modulation) method, an ECC(Error Correcting Code), and a preamble code in which an auto-correlation feature is similar to a delta function. CONSTITUTION: A code generation unit(230) generates an ECC by adding parity to data stored in an RFID tag. A preamble signal generation unit(240) generates a preamble code with an auto-correlation feature of a delta function. Load-modulators(270) and antennas transmit the ECC and the preamble code to a reader device with an M-PAM method or an M-QAM method and are operated in response to an M-level. The number of load-modulators is calculated based on an equation. [Reference numerals] (210) Memory; (220) Packet generation unit; (232) Error correction code setting unit; (234) Error correction code encoder; (240) Preamble signal generation unit; (250) Multiplexor; (260) Thermometer decoder
Abstract translation: 目的：提供RFID（射频识别）系统及其通信方法，以通过使用M-PAM（脉冲幅度调制）方法，M-QAM（正交幅度调制）方法， ECC（纠错码），以及其中自相关特征类似于Δ函数的前导码。 构成：代码生成单元（230）通过向存储在RFID标签中的数据添加奇偶校验来生成ECC。 前导码信号生成单元（240）生成具有增量函数的自相关特征的前导码。 负载调制器（270）和天线使用M-PAM方法或M-QAM方法将ECC和前导码发送到读取设备，并且响应于M级操作。 负载调制器的数量基于等式计算。 （附图标记）（210）存储器; （220）分组生成单元; （232）纠错码设定单位; （234）纠错码编码器; （240）前导信号发生单元; （250）多路复用器 （260）温度计解码器
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Patent Agency Ranking
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公开(公告)号：KR1020140110371A
公开(公告)日：2014-09-17
申请号：KR1020130024578
申请日：2013-03-07
Applicant: 한국전자통신연구원 , 서울과학기술대학교 산학협력단
CPC classification number: H04B7/0413 , H01Q3/24 , H01Q21/0006 , H04B7/0604
Abstract: The present invention relates to an antenna switching apparatus in a spatial modulation method capable of minimizing signal distortion by asynchronous switching time by controlling the delay time of a switching control signal applied to each switching unit by analyzing a signal outputted from the switching units connected to multiple antennas. To achieve this, the present invention provides the antenna switching apparatus in the spatial modulation method comprising: a control signal generation unit to generate a switching control signal; the multiple switching units installed at the front ends of each of the antennas to apply a transmission signal to the antennas by executing switching operation according to the switching control signal; a delay analysis unit to calculate delay information for synchronizing the switching control signal applied to the multiple switching units by receiving the transmission signal outputted from each switching unit; and a delay control unit to individually apply the switching control signal to each of the switching units by synchronizing the switching control signal according to the calculated delay information.
Abstract translation: 本发明涉及一种空间调制方法中的天线切换装置，该方法能够通过分析从连接到多个切换单元的切换单元输出的信号，通过控制施加到各切换单元的切换控制信号的延迟时间，通过异步切换时间来最小化信号失真 天线。 为了实现这一点，本发明提供了一种空间调制方法中的天线切换装置，包括：控制信号生成单元，生成开关控制信号; 所述多个切换单元安装在每个天线的前端，通过根据切换控制信号执行切换操作向天线施加发送信号; 延迟分析单元，用于计算延迟信息，用于通过接收从每个开关单元输出的发送信号来同步施加到多个开关单元的开关控制信号; 以及延迟控制单元，用于通过根据所计算的延迟信息使切换控制信号同步，来将切换控制信号单独地应用于每个切换单元。
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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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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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8.发明公开수동형 RFID 리더, 수동형 RFID 태그 및 각각에서의 확장 PIE 인코딩/디코딩을 이용한 송/수신 방법 审中-实审无源RFID读写器，被动RFID标签和使用扩展的PIE编码/解码的发送/接收方法
公开(公告)号：KR1020150065573A
公开(公告)日：2015-06-15
申请号：KR1020140160991
申请日：2014-11-18
Applicant: 한국전자통신연구원
IPC: G06K17/00
CPC classification number: G06K7/10198 , G06K7/10297 , G06K19/0723 , H04L25/4902
Abstract: 본발명은무선주파수인식(RFID: Radio Frequency IDentification) 시스템에서의확장 PIE(Pulse-Interval Encoding) 변조방법으로, 2 비트로구성된송신데이터를변조하되, 송신데이터의제 1 비트값에따라심볼길이를조절하는단계와, 송신데이터의제 2 비트값에따라에너지전송대기구간의길이를조절하는단계를포함한다.
Abstract translation: 本发明涉及射频识别（RFID）系统的脉冲间隔编码（PIE）的调制方法。 用于调制2位发送数据的射频识别（RFID）系统的脉冲间隔编码（PIE）的调制方法包括：根据发送数据的第一比特的值来控制符号的长度的步骤 ; 以及根据发送数据的第二位的值来控制能量传输等待部分的长度的步骤。
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