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公开(公告)号：KR1020130007423A
公开(公告)日：2013-01-18
申请号：KR1020120060842
申请日：2012-06-07
Applicant: 한국전자통신연구원
IPC: H04B13/02
CPC classification number: H04L7/043 , H04B13/005
Abstract: PURPOSE: A preamble creation and detection method and digital communication system thereof are provided to remarkably increase accuracy of frame synchronization by minimizing power consumption and hardware complexity. CONSTITUTION: A preamble creation apparatus(11) includes a pseudo noise code creation unit and a line coder. A preamble detection apparatus(12) calculates correlation values by using a first pseudo noise code. The preamble detection apparatus repetitively detects a first sub preamble. When the first sub-preamble is more detected as the set number, the preamble detection apparatus calculates the correlation value by using the second pseudo noise code. The preamble detecting apparatus detects a second sub preamble. [Reference numerals] (11) Preamble creation apparatus; (111) Pseudo noise code creation unit; (113) Line coder; (12) Preamble detection apparatus; (121) First detection unit; (123) Second detection unit; (13) Data transmission and reception unit
Abstract translation: 目的：提供前导码创建和检测方法及其数字通信系统，通过最小化功耗和硬件复杂度，显着提高帧同步精度。 构成：前导码生成装置（11）具有伪噪声编码生成部和行编码部。 前同步码检测装置（12）通过使用第一伪噪声码来计算相关值。 前同步码检测装置重复地检测第一子前同步码。 当第一副前导码被更多地检测为设定号码时，前同步码检测装置通过使用第二伪噪声码来计算相关值。 前同步码检测装置检测第二子前同步码。 （附图标记）（11）前导码生成装置; （111）伪噪声码生成单元; （113）线编码器; （12）前导码检测装置; （121）第一检测单元; （123）第二检测单元; （13）数据发送接收单元
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公开(公告)号：KR101210276B1
公开(公告)日：2012-12-10
申请号：KR1020080131615
申请日：2008-12-22
Applicant: 한국전자통신연구원
IPC: H04L27/34
CPC classification number: H04B11/00 , H04B13/005
Abstract: 본발명은인체를통신채널로이용하는인체음향송신장치및 방법에관한것으로, 더욱상세하게는주파수변조방식을이용하여음향신호를변조하고이를인체에인가한후 별도의송신장치를구비하지않고인체에서발생하는비선형작용을이용해음향을생성할수 있는주파수변조방식의음향송신기술에관한것으로음향원으로부터전달된신호를주파수변조한후 위상을변환하는제 1 변조부, 상기음향원으로부터전달된신호를시간지연후 주파수변조하는제 2 변조부및 상기제 1 변조부및 제 2 변조부로부터각각의신호를수신하여초음파신호로변환한후 인체를통해송신하는초음파변환기를포함한다.
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公开(公告)号：KR1020120067871A
公开(公告)日：2012-06-26
申请号：KR1020100129505
申请日：2010-12-16
Applicant: 한국전자통신연구원
IPC: G08B21/24
CPC classification number: G08B21/24 , G06K7/10297 , G08B7/02
Abstract: PURPOSE: A loss prevention system and method are provided to minimize power consumption by forming the loss prevention system by using human body communications of a digital direct transmission mode. CONSTITUTION: An electronic tag(2) is attached to belongings. A loss monitoring unit(1) transmits and receives tag information from the electronic tag by using a human body as a transmission media. The loss monitoring unit monitors whether the belongings are lost or not. A button unit(11) registers and searches the belongings. A display unit indicates information in regard to the belongings. The display unit displays an alarm message when the belongings are lost. An alarm generating unit generates sound or vibration when the belongings are lost. A human body communications modem executes human body communications with the electronic tag. A controller controls the whole operation of the button unit, the display unit, the alarm generating unit, and the human body communications modem.
Abstract translation: 目的：提供一种通过使用数字直接传输模式的人体通信形成防损系统来最大限度地降低功耗的损失预防系统和方法。 规定：电子标签（2）附在物品上。 损失监测单元（1）通过使用人体作为传输介质从电子标签发送和接收标签信息。 损失监测单元监视物品是否丢失。 按钮单元（11）对物品进行注册和搜索。 显示单元指示关于物品的信息。 当物品丢失时，显示单元显示报警信息。 报警发生单元在物品丢失时产生声音或振动。 人体通信调制解调器执行与电子标签的人体通信。 控制器控制按钮单元，显示单元，报警产生单元和人体通信调制解调器的整个操作。
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公开(公告)号：KR1020120046877A
公开(公告)日：2012-05-11
申请号：KR1020100107024
申请日：2010-10-29
Applicant: 한국전자통신연구원
IPC: H04B7/02
CPC classification number: G01S3/48
Abstract: PURPOSE: A real time arrival angle estimation apparatus is provided to simply estimate arrival angles by comparing reduction values of a signal except for a complex digital signal processing step. CONSTITUTION: Plural direction composition units(110) shifts phases of a signal transmitted by an array antenna(200) in order to shift an arrival angle into a predetermined shifted angle. An arrival angle estimation unit(120) estimates the arrival angle of the received signal by using radiation gains in two phase shifted signals of the phase shifted signals. The arrival angle estimation unit estimates the reduction value of the shifted angle as reduction angles.
Abstract translation: 目的：提供实时到达角度估计装置，通过比较复数数字信号处理步骤以外的信号的简化值来简单地估计到达角度。 构成：多方向组合单元（110）移动由阵列天线（200）发射的信号的相位，以将到达角度移动到预定的移位角度。 到达角度估计单元（120）通过使用相移信号的两个相移信号中的辐射增益来估计接收信号的到达角度。 到达角度估计单元将偏移角度的减小值估计为缩小角度。
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公开(公告)号：KR1020110073194A
公开(公告)日：2011-06-29
申请号：KR1020100044925
申请日：2010-05-13
Applicant: 한국전자통신연구원
IPC: H04B13/00
CPC classification number: H04B13/005 , G08B21/0202 , G08B21/0269 , G08B21/22
Abstract: PURPOSE: A crime preventing method using a human body communication and a prevention system using a human body communication are provided to prevent crime by using a human body communication. CONSTITUTION: A monitoring device(100) is attached to a monitoring object person. The monitoring device senses body contact with the general person. If body contact is sensed, the monitoring device provides monitoring information of the monitoring object through a human body communication. A receiving device(200) is attached to the general person. The receiving device receives monitoring information through the human body communication. The receiving device transmits the monitoring information to fixed destination location in advance.
Abstract translation: 目的：提供使用人体传播的预防犯罪方法和使用人体通信的预防系统，以通过使用人体通信来防止犯罪。 构成：将监视装置（100）附接到监视对象人物。 监视装置感知与一般人的身体接触。 如果检测到身体接触，则监视装置通过人体通信提供监视对象的监视信息。 接收装置（200）附接到一般人。 接收装置通过人体通信接收监视信息。 接收装置预先将监视信息发送到固定目的地位置。
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Patent Agency Ranking
公开(公告)号：KR1020110027530A
公开(公告)日：2011-03-16
申请号：KR1020100016333
申请日：2010-02-23
Applicant: 한국전자통신연구원
IPC: H04B1/7073 , H04L27/26
CPC classification number: H04J13/10 , H04B13/005 , H04J13/0022 , H04J13/0048
Abstract: PURPOSE: A device and a method for generating a preamble for a digital direct transmission system are provided to prevent a low frequency noise by generating the preamble through the combination of a diffusion coding, a pseudo noise code, and a line coding. CONSTITUTION: A preamble generating device(200) includes a PN(Pseudo Noise) code generating unit(210), a line coder(220), and a diffusion coder(230). The PN code generating unit generates a PN code. The PN code generating unit is comprised of an existing maximal code, a nonmaximal code, a gold code, or a kasami code generator. The line coder receives a PN code generated by the PN code generating unit. The line coder line-codes the PN code. The diffusion coder receives the PN code which is line-coded by the line coder. The diffusion coder performs the diffusion coding according to a walsh coding method.
Abstract translation: 目的：提供一种用于产生数字直接传输系统的前同步码的装置和方法，以通过扩散编码，伪噪声码和线编码的组合产生前导码来防止低频噪声。 构成：前导产生装置（200）包括PN（伪噪声）码产生单元（210），行编码器（220）和扩散编码器（230）。 PN码生成单元生成PN码。 PN代码生成单元由现有的最大代码，非最大代码，金代码或kasami代码生成器组成。 线路编码器接收由PN码生成单元生成的PN码。 线路编码器对PN码进行编码。 扩散编码器接收线路编码器进行线路编码的PN码。 扩散编码器根据沃尔什编码方法进行扩散编码。
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公开(公告)号：KR1020100123451A
公开(公告)日：2010-11-24
申请号：KR1020090042681
申请日：2009-05-15
Applicant: 한국전자통신연구원
Inventor： 강태욱 , 임인기 , 강성원 , 강태영 , 김경수 , 김성은 , 김정범 , 김진경 , 박경환 , 박형일 , 최병건 , 형창희 , 황정환 , 명혜진 , 현석봉 , 박기혁 , 심재훈
CPC classification number: H04B1/707 , H04B2201/70715 , H04L1/0001 , H04B7/02 , H04L25/03949
Abstract: PURPOSE: It frequency-selectives the adaptive using the orthogonal code, by using the denotation carrying orthogonally the base band communications method minimizes interference between the sending code. CONSTITUTION: By using one denotation among a plurality of denotations having the different frequency band communications operates(S301). The proper party house is selected by using the correlation value of an plurality of denotations included in the transmitted test data as described above(S305).
Abstract translation: 目的：使用正交码对自适应进行频率选择，通过使用正交携带的基带通信方法来最小化发送码之间的干扰。 构成：通过使用具有不同频带通信的多个指示中的一个指示进行操作（S301）。 如上所述，通过使用发送的测试数据中包括的多个指示的相关值来选择适当的派对室（S305）。
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公开(公告)号：KR100821197B1
公开(公告)日：2008-04-11
申请号：KR1020050097449
申请日：2005-10-17
Applicant: 한국전자통신연구원
CPC classification number: H03F1/0222 , H03F1/0277
Abstract: 본 발명은 최대 출력에서 선형성을 만족시키면서, 최대 사용빈도를 갖는 영역에서 효율을 증대시켜 배터리의 사용시간을 연장할 수 있도록 한 저소비 전력 시스템에서의 전력증폭기에 관한 것이다.
본 발명의 전력증폭기는, 외부로부터 입력된 신호를 임피던스 정합시키기 위한 입력 임피던스 정합부; 상기 입력 임피던스 정합부를 경유한 신호를 증폭하기 위한 고출력 증폭부 및 저출력 증폭부; 상기 입력 신호의 전력 레벨에 따라 상기 고출력 증폭부 및 저출력 증폭부를 제어하는 증폭기 제어부; 상기 고출력 증폭부 및 저출력 증폭부로부터 증폭된 신호를 임피던스 정합시키기 위한 출력 임피던스 정합부; 및 상기 저출력 증폭부에 가변적인 동작 전압을 공급하기 위한 다이나믹 전압 공급부를 포함를 포함하되, 상기 고출력 증폭부는 선형성이 높은 특성을 가지며, 상기 저출력 증폭부는 최대 사용 빈도 영역에서 효율이 높으며 비선형 특성을 가진다.
상기 구성에 따라, 최대 출력에서 선형성을 만족시키면서, 최대 사용빈도를 갖는 영역에서 효율을 증대시켜 휴대기기 배터리의 사용시간을 연장할 수 있는 효과가 있다.
전력증폭기, 이동통신 단말기, 임피던스 정합부, 증폭기 제어부-
公开(公告)号：KR100684172B1
公开(公告)日：2007-02-20
申请号：KR1020040096677
申请日：2004-11-24
Applicant: 한국전자통신연구원
IPC: G06K19/077
CPC classification number: G06K19/0723
Abstract: 본 발명은 수동형 RFID 태그의 저전력 디지털 회로부 구조에 관한 것이다. 본 발명에서는 수동형 RFID 태그의 디지털 회로부를, 명령어 수신에서부터 명령어 분석 및 실행, 그리고 응답 신호를 생성하기까지 데이터 흐름에 따라 단계별로 세분화하여, 별도의 컨트롤러 없이 각 블록이 순차적으로, 그리고 그 블록에 최적화된 클럭으로 동작하도록, 각 블록의 클럭을 공급하는 수동형 RFID 태그의 디지털 회로부 구조가 제시된다. 본 발명에 의하면 수동형 RFID 태그 디지털 회로부의 각 블록들을 서로 다른 시간에 동작하게 함으로써, 불필요하게 동작하는 하드웨어가 줄어 전체 소모되는 파워를 줄이는 효과가 있다.
RFID, RFID 태그, 가변 클럭, 저전력, 디지털-
公开(公告)号：KR100684148B1
公开(公告)日：2007-02-20
申请号：KR1020050104852
申请日：2005-11-03
Applicant: 한국전자통신연구원
Abstract: A digital-controlled circulator and a radio frequency identification reader having the same are provided to secure convenience for high integration in an MMIC(Monolithic Microwave Integrate Circuit) or an RFIC(Radio Frequency Integrate Circuit) form and reduce manufacturing cost by being composed of lumped elements such as an inductor, a resistor, and a capacitor. In a digital-controlled circulator, first and second variable inductors(311,312) are connected between a first terminal(P1) and a second terminal(P2) in series. Third and fourth variable inductors(313,314) are connected between the first terminal(P1) and a third terminal(P3) in series. A variable resistor(320) is connected between a first node(N1) and a second node(N2), wherein the first node(N1) is a connection point of the first and second variable inductors(311,312). The second node(N2) is a connection point of the third and fourth variable inductors(313,314). First, second, and third variable capacitors(331,332,333) are connected to the first terminal(P1), the first node(N1), and between the second node(N2) and a ground respectively. A logical control unit(350) provides a control value for varying each value of the first to the fourth variable inductors(311,312,313,314), the variable resistor(320), and the first to the third variable capacitors(331,332,333).
Abstract translation: 提供数字控制循环器和具有该数字控制循环器的射频识别读取器以确保便利性，以便在MMIC（单片微波积分电路）或RFIC（射频积分电路）形式中高度集成，并且通过由集总 诸如电感器，电阻器和电容器之类的元件。 在数字控制环行器中，第一和第二可变电感器（311,312）串联连接在第一端子（P1）和第二端子（P2）之间。 第三和第四可变电感器（313,314）串联连接在第一端子（P1）和第三端子（P3）之间。 可变电阻器（320）连接在第一节点（N1）和第二节点（N2）之间，其中第一节点（N1）是第一和第二可变电感器（311,312）的连接点。 第二节点（N2）是第三和第四可变电感器（313,314）的连接点。 第一，第二和第三可变电容器（331,332,333）分别连接到第一端子（P1），第一节点（N1）以及第二节点（N2）和地之间。 逻辑控制单元（350）提供用于改变第一至第四可变电感器（311,312,313,314），可变电阻器（320）以及第一至第三可变电容器（331,332,333）的每个值的控制值。
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