公开(公告)号：KR1020040056973A

公开(公告)日：2004-07-01

申请号：KR1020020083724

申请日：2002-12-24

Applicant: 한국전자통신연구원

Inventor： 이상욱 ,  김재훈 ,  이성팔

IPC: H04B17/00

CPC classification number: H04N7/18

Abstract: PURPOSE: A terminal for collecting ordinary data using a commercial wireless network and a data collection system using the same are provided to offer a general-purpose terminal which can transmit the data collected from various measuring instruments in remote places using a commercial wireless communication network. CONSTITUTION: A terminal for collecting ordinary data using a commercial wireless communication network comprises an adapter(21), a data processing part(22), a transceiver part(23), an antenna(24), and a power supply part(25). The adapter(21), connected with a measuring device, receives the data measured by the measuring device. The data processing part(22) processes the data collected by the adapter(21). The transceiver part(23) transmits the processed data, the state data of the measuring device, and the state data of the terminal to a central control station through the commercial wireless communication network. The power supply part(25) supplies power to each of the components.

Abstract translation: 目的：提供一种使用商业无线网络收集普通数据的终端和使用其的数据收集系统，以提供可以使用商业无线通信网络在远程地点从各种测量仪器收集的数据发送的通用终端。 构成：用于使用商业无线通信网络收集普通数据的终端包括适配器（21），数据处理部分（22），收发器部分（23），天线（24）和电源部分（25） 。 与测量装置连接的适配器（21）接收由测量装置测量的数据。 数据处理部分（22）处理由适配器（21）收集的数据。 收发器部分23通过商业无线通信网络将经处理的数据，测量装置的状态数据和终端的状态数据发送到中央控制站。 电源部件（25）向每个部件供电。

公开(公告)号：KR100401123B1

公开(公告)日：2003-10-10

申请号：KR1020000083264

申请日：2000-12-27

Applicant: 한국전자통신연구원

Inventor： 유문희 ,  이성팔

IPC: H04B7/26

Abstract: PURPOSE: A method for compensating Doppler transition frequency in a non-geostationary satellite orbit mobile communication system is provided to reduce the complexity of a frequency synchronous circuit device required from a receiving mobile terminal and easily receive signals by performing accurate and prompt frequency synchronizing with electric calculation. CONSTITUTION: Initial input Doppler transition value is set up by using a pilot signal received from a satellite to adaptively compensate Doppler transition frequency generated by operation of a non-geostationary satellite(S510). Instantaneous satellite location parameter is input(S520). The distance between the satellite and a mobile communication terminal is estimated(S530). The location of the receiving mobile terminal is estimated by using the estimated Doppler transition frequency and the location of the satellite(S540). Instantaneous Doppler transition frequency is predicted by using the estimated location of the receiving mobile terminal(S550). A prediction error is compensated by applying appropriate weight to the predicted instantaneous Doppler transition frequency(S560).

Abstract translation: 目的：提供一种用于补偿非对地静止卫星轨道移动通信系统中的多普勒频移的方法，以降低接收移动终端所需的频率同步电路装置的复杂度，并通过与电气进行准确和迅速的频率同步来容易地接收信号 计算。 构成：通过使用从卫星接收的导频信号来设置初始输入多普勒转换值，以自适应地补偿由非对地静止卫星的操作产生的多普勒转换频率（S510）。 输入瞬时卫星位置参数（S520）。 估计卫星和移动通信终端之间的距离（S530）。 通过使用估计的多普勒过渡频率和卫星的位置来估计接收移动终端的位置（S540）。 通过使用接收移动终端的估计位置来预测瞬时多普勒转变频率（S550）。 通过对预测的瞬时多普勒跃迁频率应用适当的权重来补偿预测误差（S560）。

公开(公告)号：KR1020030049177A

公开(公告)日：2003-06-25

申请号：KR1020010079317

申请日：2001-12-14

Applicant: 한국전자통신연구원

Inventor： 이상욱 ,  조성기 ,  김재훈 ,  이성팔

IPC: B64C17/00

CPC classification number: B64D45/00 ,  G06F3/14 ,  G06F17/10

Abstract: PURPOSE: A display system of a motion state and a posture of a plane and its method are provided to precisely seize the posture of the plane and to check and to predict the interfering state between various kinds of sensors and an external environment easily. CONSTITUTION: A frame processing module(100) generates and outputs remote measuring data containing the motion state and the posture of a plane by processing various kinds of state information of the plane in a remote measuring frame. A data storing module(200) receives and stores the remote measuring data from the frame processing module. A data processing module converts the remote measuring data of non-real time from the data storing module or the remote measuring data of real time from the frame processing module to display data. A displaying module(400) displays the motion state and the posture of the plane through a two-dimensional plane by using the display data. Thereby, the interference between various kinds of sensors and an external environment is checked and predicted.

Abstract translation: 目的：提供运动状态和平面姿态的显示系统及其方法，以精确地捕捉平面姿态，并且容易地检查和预测各种传感器与外部环境之间的干扰状态。 构成：帧处理模块（100）通过处理远程测量帧中的各种状态信息来生成并输出包含平面运动状态和姿态的远程测量数据。 数据存储模块（200）从帧处理模块接收并存储远程测量数据。 数据处理模块将来自数据存储模块的非实时的远程测量数据或实时的远程测量数据从帧处理模块转换为显示数据。 显示模块（400）通过使用显示数据通过二维平面显示平面的运动状态和姿势。 因此，检查并预测各种传感器与外部环境之间的干扰。

公开(公告)号：KR100314655B1

公开(公告)日：2001-12-28

申请号：KR1019980054449

申请日：1998-12-11

Applicant: 한국전자통신연구원

Inventor： 김원호 ,  안재영 ,  조용훈 ,  이성팔

IPC: H04N21/242

Abstract: 본 발명은 비대칭형 멀티미디어 위성통신 시스템에서 망 동기장치 및 그 방법에 관한 것으로, MPEG-2 시스템 규격에서 정의된 적응필드 구문을 이용해 망동기 정보를 모든 단말국들에게 방송하고, 각 단말국들은 상기 적응필드 구문의 프로그램 클럭 기준값과 원 프로그램 클럭 기준값 영역에 삽입되어 있는 망동기 정보를 이용해 중심국과 단말기간 망 동기를 지속적으로 유지하도록 하기 위해, 본 발명에서는, 망동기정보를 적응필드 구문에 포함시켜 망동기용 패킷을 구성하고, 상기 망동기용 패킷을 다중화하여 방송하며, 중심국의 수신부와 단말국에서 상기 수신된 망동기용 패킷으로부터 망동기 정보를 추출하고, 상기 망동기 정보를 이용해 기준 타이밍 신호를 발생한 다음, 상기 기준 타이밍 신호를 이용해 상기 중심국의 수신부에서는 수신 슬롯 � ��이밍 신호를 생성하고, 상기 단말국에서는 송신 슬롯 타이밍 신호를 생성한다. 그리고, 상기 단말국에서 상기 송신슬롯 타이밍 신호에 동기시켜 데이타를 송출하면, 상기 수신 슬롯 타이밍 신호와 상기 수신된 데이타의 슬롯 타이밍 신호와의 타이밍 오차를 측정하여 상기 해당 단말국으로 전송하고, 단말국에서 상기 송신 슬롯 타이밍 발생 시간을 교정하여 송신슬롯 타이밍 신호를 발생한다.

公开(公告)号：KR1020010064134A

公开(公告)日：2001-07-09

申请号：KR1019990062268

申请日：1999-12-24

Applicant: 한국전자통신연구원

Inventor： 김영완 ,  김호겸 ,  이점훈 ,  고지환 ,  오덕길 ,  이성팔

IPC: G01S13/70

Abstract: PURPOSE: A satellite distance measuring unit is provided to decrease complexity of system and solve exactly distance ambiguity about the doppler effect. CONSTITUTION: A major tone signal PLL(112) synchronizes a phase of major tone signal measuring distance from satellite. A major tone signal measuring part(114) detects phase value of major tone signal synchronized by the major tone signal PLL(112). A major tone signal phase tracking part(110) is composed of the major tone signal PLL(112) and the major tone signal measuring part(114). A minor tone signal PLL(122) synchronizes a phase of minor tone signal measuring distance from satellite. A minor tone signal measuring part(124) detects phase value of minor tone signal synchronized by the minor tone signal PLL(122). A minor tone signal phase tracking part(120) is composed of the minor tone signal PLL(122) and the minor tone signal measuring part(124). A tone signal distributor supplies a frequency of the minor tone signal to the minor tone signal PLL(122) after distributing the major tone signal from the major tone signal PLL(112) to frequency of the minor tone signal. A distance measuring data processor(130) outputs satellite distance and calculates parameter of distance ambiguity to converting the phase value of the major tone signal and the phase value of minor tone signal into an equivalence phase value.

Abstract translation: 目的：提供卫星距离测量单元，以降低系统的复杂性，并精确地解决多普勒效应的距离模糊度。 构成：主音调信号PLL（112）同步主要音调信号测量卫星距离的相位。 主音调信号测量部分（114）检测由主音调信号PLL（112）同步的主音调信号的相位值。 主音调信号相位跟踪部分（110）由主音调信号PLL（112）和主音调信号测量部分（114）组成。 小音调信号PLL（122）同步测量距离卫星的小音调信号的相位。 小音调信号测量部分（124）检测由次音调信号PLL（122）同步的较小音调信号的相位值。 次音信号相位跟踪部分（120）由次音调信号PLL（122）和次音调信号测量部分（124）组成。 在将主音色信号PLL（112）的主音调信号分配到次音调信号的频率之后，音调信号分配器将次音信号的频率提供给次音调信号PLL（122）。 距离测量数据处理器（130）输出卫星距离并计算距离模糊度的参数，以将主音调信号的相位值和小音调信号的相位值转换为等价相位值。

公开(公告)号：KR1020010011089A

公开(公告)日：2001-02-15

申请号：KR1019990030309

申请日：1999-07-26

Applicant: 주식회사 머큐리 ,  한국전자통신연구원

Inventor： 최훈 ,  전경재 ,  안재영 ,  이성팔 ,  신영호

IPC: H04N7/14

Abstract: PURPOSE: An integrated broadcasting/communication system capable of internet access in an MPEG-2 digital broadcasting network and method for controlling the connection thereof are provided to configure a point-to-point communication channel through the broadcasting network, and to set up a communication channel capable of bidirectional communication by utilizing a return channel. CONSTITUTION: If a user selects an internet application program of a station(S801), the station requests connection to a service gateway(S802). The service gateway checks a subscriber(S803). If subscriber authentification is successful, the station allocates a network resource capable of being used as a transmitting/receiving channel(S804). Whether the allocation of the network resource is available is checked(S805). If the allocation is unavailable, the failure of connection is notified to the station(S806). The station announces the failure of connection to the user(S807). If the allocation is available, a return channel receiving unit of the service gateway is initialized to enable receiving(S808). The success of connection is notified to the station(S809). The station initializes the return channel(S810), and initializes a receiving channel through a broadcasting network(S811). The station announces the success of connection to the user(S812). Accordingly, the user communicates with hosts on the internet through the application program(S813). If the user stops the application program for disconnection(S814), the station requests disconnection to the service gateway(S815). The service gateway releases resources related to broadcasting channels(S816), and releases the return channel receiving unit(S817), then notifies the station of the disconnection(S818). The station releases a transmitting channel(S819), and releases a receiving broadcasting channel(S820), then notifies the user of the completion of disconnection(S821).

Abstract translation: 目的：提供能够在MPEG-2数字广播网络中进行互联网接入的综合广播/通信系统及其连接方法，以配置通过广播网络的点对点通信信道，并建立通信 通道能够通过利用返回通道进行双向通信。 构成：如果用户选择站台的互联网应用程序（S801），则站点向服务网关请求连接（S802）。 服务网关检查用户（S803）。 如果用户认证成功，则该站分配能够用作发送/接收信道的网络资源（S804）。 检查网络资源的分配是否可用（S805）。 如果分配不可用，则连接失败被通知给站（S806）。 该站宣布连接用户失败（S807）。 如果分配可用，则初始化服务网关的返回信道接收单元以使能接收（S808）。 连接成功通知站（S809）。 站初始化返回信道（S810），并通过广播网络初始化接收信道（S811）。 该站宣布与用户的连接成功（S812）。 因此，用户通过应用程序与互联网上的主机进行通信（S813）。 如果用户停止用于断开的应用程序（S814），则站点请求断开到服务网关（S815）。 服务网关发布与广播信道相关的资源（S816），并释放返回信道接收单元（S817），然后通知站台断开（S818）。 该站释放发送信道（S819），并释放接收广播信道（S820），然后通知用户完成断线（S821）。

公开(公告)号：KR1020010010342A

公开(公告)日：2001-02-05

申请号：KR1019990029162

申请日：1999-07-19

Applicant: 한국전자통신연구원

Inventor： 김명섭 ,  송윤정 ,  이성팔

IPC: H04L27/38

Abstract: PURPOSE: A timing interpolation device and method using the same is provided to use a raised-cosine filter as an interpolation filter, to select the coefficient group of the interpolation filter depending on the difference of a symbol timing phase after tying the coefficient groups of the interpolation filter into some group without using a PLL and to send the symbol timing location and the interpolation filter output. CONSTITUTION: In a timing restoration device of a communication system using an interpolation filter, the digital interpolation filter includes a raised-cosine filter as to prevent a timing slip generated from an A/D converter converting a received analog signal to a digital signal, thereby interpolating an input signal. A symbol timing restoration device generates a control signal allowing to prevent the timing slip using the digital interpolation filter. The timing restoration device prevents the degradation of the property without using the PLL method.

Abstract translation: 目的：提供一种定时插值装置及其使用方法，使用升余弦滤波器作为内插滤波器，根据码元定时相位的差异来选择内插滤波器的系数组， 插值滤波器组成一组而不使用PLL并发送符号定时位置和插值滤波器输出。 构成：在使用内插滤波器的通信系统的定时恢复装置中，数字内插滤波器包括升余弦滤波器，以防止从A / D转换器产生的定时滑动将接收到的模拟信号转换为数字信号，从而 内插输入信号。 符号定时恢复装置产生允许使用数字内插滤波器来防止定时滑移的控制信号。 定时恢复装置防止性能下降而不使用PLL方法。

公开(公告)号：KR1020000032093A

公开(公告)日：2000-06-05

申请号：KR1019980048434

申请日：1998-11-12

Applicant: 한국전자통신연구원

Inventor： 박찬구 ,  이장원 ,  전순익 ,  이성팔

IPC: G01S5/02

Abstract: PURPOSE: A method for automatically tracing a satellite of an active antenna system is provided to improve a tracing time by defining a search zone of an antenna and searching only the search zone. CONSTITUTION: A method for tracing automatically a satellite of an active antenna system comprises the steps of: obtaining a search zone of a satellite by an electronic compass sensor in order to measure a location of a moving object; calculating a relative coordinate of the satellite for the moving object by using the location information; searching a satellite signal by moving the electronic compass sensor; and determining whether a signal is sensed from the satellite, or not; and measuring an azimuth, an elevation, a cosine of the elevation of the satellite if sensed.

Abstract translation: 目的：提供一种用于自动跟踪有源天线系统的卫星的方法，通过定义天线的搜索区域并仅搜索搜索区域来提高跟踪时间。 构成：用于自动跟踪有源天线系统的卫星的方法包括以下步骤：通过电子罗盘传感器获得卫星的搜索区域，以便测量移动物体的位置; 通过使用位置信息计算移动物体的卫星的相对坐标; 通过移动电子罗盘传感器搜索卫星信号; 并且确定是否从卫星感测到信号; 并测量如果感测到的卫星高程的方位角，高程，余弦值。

公开(公告)号：KR1020120052715A

公开(公告)日：2012-05-24

申请号：KR1020100113995

申请日：2010-11-16

Applicant: 한국전자통신연구원

Inventor： 조진호 ,  유문희 ,  이성팔 ,  김재훈

IPC: H04B17/40 ,  H04B7/185

CPC classification number: H04B7/18519

Abstract: PURPOSE: A satellite performance monitoring system and method thereof are provided to compensate frequency response features for satellite repeaters by using variation rates of signals according to weather conditions. CONSTITUTION: A satellite communication control unit(100A) transmits a reference signal and test signal to a satellite repeater(200). A satellite performance monitoring apparatus(100B) creates the test signals and the reference signal. The satellite performance monitoring apparatus creates frequency response features for the satellite repeater. The satellite performance monitoring apparatus calculates variation rates of the signals according to weather conditions. The satellite performance monitoring apparatus applies the calculated variation rates of the signals to the frequency response features.

Abstract translation: 目的：提供一种卫星性能监测系统及其方法，通过使用根据天气条件的信号变化率来补偿卫星中继器的频率响应特征。 构成：卫星通信控制单元（100A）将参考信号和测试信号发送到卫星中继器（200）。 卫星演奏监视装置（100B）产生测试信号和参考信号。 卫星演播监视装置为卫星中继器创建频率响应特征。 卫星演奏监视装置根据天气条件来计算信号的变化率。 卫星性能监视装置将计算的信号变化率应用于频率响应特征。

公开(公告)号：KR1020100055745A

公开(公告)日：2010-05-27

申请号：KR1020080114611

申请日：2008-11-18

Applicant: 한국전자통신연구원

Inventor： 정철오 ,  박재우 ,  이성팔

IPC: H04B7/26 ,  H04N7/00 ,  H04W4/02

CPC classification number: H04W36/12 ,  H04H40/18 ,  H04W4/02 ,  H04W64/003

Abstract: PURPOSE: A DMB service terminal for performing handover based on position information, and a handover control apparatus and a device therefor are provided to perform handover based on distance information between a service terminal and a base station, thereby simply configuring technical configuration. CONSTITUTION: A position perceiving unit(110) grasps present position information of a terminal. A base station information storage unit(130) stores a plurality of base station information in which location information is included. A handover performing unit(120) decides whether to perform handover based on the present position information and the stored base station information. The handover performing unit performs handover according to the determination result. A channel information storage unit(140) stores channel information about one or more neighboring base stations.

Abstract translation: 目的：提供一种用于基于位置信息进行切换的DMB服务终端，以及切换控制装置及其装置，用于基于服务终端与基站之间的距离信息进行切换，由此简单地配置技术配置。 构成：位置感知单元（110）掌握终端的当前位置信息。 基站信息存储单元（130）存储包含有位置信息的多个基站信息。 切换执行单元（120）基于当前位置信息和存储的基站信息来判定是否进行切换。 切换执行单元根据确定结果执行切换。 信道信息存储单元（140）存储关于一个或多个相邻基站的信道信息。