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公开(公告)号：KR1020030052451A
公开(公告)日：2003-06-27
申请号：KR1020010082414
申请日：2001-12-21
Applicant: 한국전자통신연구원
IPC: H04N17/00
CPC classification number: H04N17/04 , H04N9/646 , H04N17/004
Abstract: PURPOSE: A system for selecting an experimental image of a display device and a method thereof are provided to select an experimental image having color areas which the display device is incapable of expressing, thereby affecting on algorithm development and judgement of the picture quality. CONSTITUTION: A display color gamut input unit receives information of RGB to L*a*b*(9*9*9) of a display device in a look-up table form. A display color gamut expanding unit expands RGB to L*a*b of (9*9*9) into RGB to L*a*b of (33*33*33) by using the three-dimensional interpolation. A display color gamut forming unit forms display color areas by forming 30*30*30 cells by dividing RGB to L*a*b of (33*33*33) by 30 equally. An experimental image converter converts an experimental image(RGB) into XYZ values for obtaining color gamut data, L*a*b. An experimental image verifying unit substitutes data of the experimental image for color gamut 30*30*30 cells in order for accumulating data not included in the cells and counting the number. According to the number of the accumulated pixels, the experimental image is selected.
Abstract translation: 目的：提供一种用于选择显示装置的实验图像的系统及其方法，以选择具有显示装置不能表达的颜色区域的实验图像，从而影响图像质量的算法开发和判断。 构成：显示色域输入单元以查询表的形式接收显示装置的RGB到L * a * b *（9 * 9 * 9）的信息。 显示色域扩展单元通过使用三维插值将RGB（L * a * b）（9 * 9 * 9）RGB扩展为（33 * 33 * 33）的L * a * b。 显示色域形成单元通过将RGB分成（33 * 33 * 33）的L * a * b相等30来形成30 * 30 * 30个单元来形成显示颜色区域。 实验图像转换器将实验图像（RGB）转换为XYZ值，以获得色域数据L * a * b。 实验图像验证单元将实验图像的数据替换为色域30 * 30 * 30个单元，以便累积不包括在单元中的数据并对该数量进行计数。 根据累积像素的数量，选择实验图像。
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公开(公告)号：KR1020030042611A
公开(公告)日：2003-06-02
申请号：KR1020010073334
申请日：2001-11-23
Applicant: 한국전자통신연구원
IPC: H04N9/77
Abstract: PURPOSE: A system and method for extracting an optimum image using human visual characteristic are provided to extract a picture quality factor, convert and process the extracted factor to reproduce optimum picture quality for a display system. CONSTITUTION: A system for extracting an optimum image using human visual characteristic includes a converter(10) for converting RGB video signals into LCh color spaces, an LCh controller(20) for controlling the value converted from the RGB signals into LCh spaces into an image having optimum colors, and a converter(30) for converting the image into RGB video signals. The system further includes a converter(40) for converting RGB video signals into YPbPr signals, an image control and improving part(50) for controlling the YPbPr signals into an image with high picture quality, and a converter(60) for converting the image into RGB video signals. The system also has a factor extractor(70) for extracting a factor corresponding to the RGB video signals converted by the converter for converting LCh into RGB and extracting a factor corresponding to the RGB video signals converted by the converter for converting YPbPr into RGB.
Abstract translation: 目的：提供一种使用人类视觉特征提取最佳图像的系统和方法，以提取图像质量因子，转换和处理提取的因子以再现显示系统的最佳图像质量。 构成：使用人类视觉特征提取最佳图像的系统包括用于将RGB视频信号转换成LCh色彩空间的转换器（10），用于将从RGB信号转换为LCh空间的值转换为图像的LCh控制器（20） 具有最佳颜色，以及用于将图像转换成RGB视频信号的转换器（30）。 该系统还包括用于将RGB视频信号转换为YPbPr信号的转换器（40），用于将YPbPr信号控制成具有高图像质量的图像的图像控制和改善部分（50），以及用于转换图像的转换器 转换为RGB视频信号。 系统还具有一个因子提取器（70），用于提取与由转换器转换的RGB视频信号相对应的因子，以将LCh转换为RGB，并提取与由转换器转换的RGB视频信号相对应的因子，将YPbPr转换为RGB。
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44.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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公开(公告)号：KR1020140124277A
公开(公告)日：2014-10-24
申请号：KR1020130041820
申请日：2013-04-16
Applicant: 한국전자통신연구원
Abstract: 물품 관리 장치는 내부에 보관 중인 물품의 태그와 통신하는 복수의 내부 안테나 또는 물품의 태그와 외부에서 통신하는 외부 안테나를 통해 전파 신호를 전송하고, 상기 물품의 태그로부터 상기 복수의 내부 안테나 또는 상기 외부 안테나를 통해 상기 전파 신호에 응답하는 태그 신호를 수신하여 태그 정보를 획득하고, 획득한 태그 정보를 이용하여 물품을 관리한다. 이때 안테나 포트 확장부를 통해서 물품의 반입 및 반출에 따라서 복수의 내부 안테나 또는 외부 안테나와 신호 송수신을 위한 경로가 설정된다.
Abstract translation: 用于管理物品的装置能够：通过与内部物品的标签或外部天线通信的多个内部天线发送无线电信号，外部天线与外部的物品的标签通信; 从所述物品的标签接收通过所述内部天线和所述外部天线响应于所述无线电信号的标签信号，以获取标签信息; 以及使用所获取的标签信息管理所述物品，其中，当所述物品被引入和撤回时，由天线端口延伸单元设置路线以向所述内部天线发送/接收信号和所述外部天线。
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Patent Agency Ranking
公开(公告)号：KR1020130082736A
公开(公告)日：2013-07-22
申请号：KR1020110135635
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: G06K7/10356 , G06K2017/0051 , H04W4/80
Abstract: PURPOSE: A frequency switch, a control method thereof, and a wireless frequency identification electronic shelf system are provided to manage a plurality of electronic shelves on which a large amount of articles is displayed through a minimum reader. CONSTITUTION: An RF switch (200) connected to between an RFID reader and a plurality of reader antennas comprises a first input connection port (211), a second input connection port (222), output connection ports (221-228), switching modules (260_1-260_4), and phase conversion units (290_1-290_4). The first input connection port sets the connection with the RFID reader. The second input connection port sets the connection with the other RF switch. A plurality of the output connection ports sets each connection with a plurality of the reader antennas. A plurality of the switching modules transmits an RF signal of the RFID reader to the predetermined reader antenna among a plurality of the reader antennas. A plurality of phase conversion units is individually connected to the partial output connection ports among a plurality of the output connection ports so that a phase of the RF signal of the corresponding output connection port is converted. [Reference numerals] (230) Communication part; (240) Power part; (250) Control part; (260_1,260_2,260_3,260_4) Switching module; (270_1,270_2) Power distributor; (280) Phase control unit; (290_1,290_2,290_3,290_4) Phase conversion unit
Abstract translation: 目的：提供一种频率开关及其控制方法以及无线频率识别电子货架系统，以便通过最小读取器管理多个电子货架，在其上显示大量商品。 构成：连接到RFID读取器和多个读取器天线之间的RF开关（200）包括第一输入连接端口（211），第二输入连接端口（222），输出连接端口（221-228），开关模块 （260_1-260_4）和相转换单元（290_1-290_4）。 第一个输入连接端口设置与RFID读取器的连接。 第二个输入连接端口与另一个RF开关设置连接。 多个输出连接端口设置与多个读取器天线的每个连接。 多个切换模块将RFID读取器的RF信号在多个读取器天线中发送到预定的读取器天线。 多个相位转换单元分别连接到多个输出连接端口中的部分输出连接端口，从而转换相应输出连接端口的RF信号的相位。 （附图标记）（230）通信部; （240）电源部分; （250）控制部分; （260_1,260_2,260_3,260_4）开关模块; （270_1,270_2）配电器; （280）相位控制单元; （290_1,290_2,290_3,290_4）相转换装置
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公开(公告)号：KR101210605B1
公开(公告)日：2012-12-11
申请号：KR1020090028572
申请日：2009-04-02
Applicant: 한국전자통신연구원
Abstract: 본발명에따르면 RFID 태그가자신의현재보안모드를리더에전달하기때문에, 리더는 RFID 태그의현재보안모드에따라보안프로토콜을구동시킬수 있고, 리더가보안모드를통해태그의능력을알 수있기때문에능력에맞는프로토콜을동작시킬수 있다. 또한, 다수의태그가존재하는상황에서도리더가태그들과의통신을끝내고계속적으로세션을유지할필요가없기때문에, 리더와인증서버사이의통신부담도줄일수 있다.
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公开(公告)号：KR1020110095115A
公开(公告)日：2011-08-24
申请号：KR1020100116647
申请日：2010-11-23
Applicant: 한국전자통신연구원
IPC: H04B5/00
CPC classification number: H04B5/0062
Abstract: PURPOSE: A wireless tag control device and method thereof are provided to obtain information of a wireless tag by using the received identification information. CONSTITUTION: A wireless tag(101) includes a plurality of identification information. The wireless tag transmits identification information among a plurality of identification information to the wireless tag reader module by responding to a connection request from a wireless tag reader module(103). The wireless tag reader module receives one identification information from the wireless tag by interlinking with a connection request to the wireless tag. A processor obtains information of the wireless tag by using the received identification information.
Abstract translation: 目的：提供一种无线标签控制装置及其方法，以通过使用所接收的识别信息来获得无线标签的信息。 构成：无线标签（101）包括多个识别信息。 无线标签通过响应来自无线标签读取器模块（103）的连接请求，将多个识别信息中的识别信息发送到无线标签读取器模块。 无线标签读取器模块通过与无线标签的连接请求相互连接而从无线标签接收一个标识信息。 处理器通过使用所接收的识别信息来获取无线标签的信息。
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公开(公告)号：KR1020110049516A
公开(公告)日：2011-05-12
申请号：KR1020090106560
申请日：2009-11-05
Applicant: 한국전자통신연구원
CPC classification number: G06K7/0008 , H04Q2213/13095
Abstract: PURPOSE: An RFID(Radio Frequency IDentification) reader and a method for controlling a gain thereof are provided to maintain the gain of a signal of an RFID tag at a predetermined size. CONSTITUTION: An RFID(Radio Frequency IDentification System) reader(10) comprises an amplifier(111) and an AGC(Auto Gain Control) circuit(240). In correspondence to an ACG signal, the amplifier controls the gain of the signal received from an RFID tag. The ACG circuit measures the signal level at a section before a preamble of the reception signal. Based on the measured signal level, the ACG circuit generates the ACG signal for the control of the gain of the received signal.
Abstract translation: 目的：提供RFID（射频识别）阅读器和控制其增益的方法，以将RFID标签的信号的增益保持在预定的大小。 构成：RFID（射频识别系统）读取器（10）包括放大器（111）和AGC（自动增益控制）电路（240）。 对应于ACG信号，放大器控制从RFID标签接收的信号的增益。 ACG电路在接收信号的前同步信号之前测量信号电平。 基于测量的信号电平，ACG电路产生用于控制接收信号的增益的ACG信号。
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公开(公告)号：KR100980584B1
公开(公告)日：2010-09-06
申请号：KR1020080093597
申请日：2008-09-24
Applicant: 한국전자통신연구원
Abstract: 위상 반전 진폭 편이 방식으로 변조하는 RFID 태그 장치 및 방법을 개시한다. 위상 반전 진폭 편이 방식으로 변조하는 RFID 태그는 연속파 및 리더 명령어를 수신하고 변조한 부반송파를 출력하는 안테나; 상기 리더 명령어를 복조하는 복조부; 태그를 식별하는 태그정보를 저장하는 태그 정보 저장부; 상기 리더 명령어 요청에 따라 상기 태그정보와 일치하는 스위치 제어신호를 생성하는 주제어기; 및, 상기 스위치 제어신호에 따라 서로 다른 위상을 가지는 부반송파를 선택적으로 출력하도록 안테나를 스위칭하여 역산란 변조하는 변조부를 포함한다.
위상 반전 진폭 편이, PR-ASK, 태그, 리더, RFID
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