公开(公告)号：KR1020040052008A

公开(公告)日：2004-06-19

申请号：KR1020020079725

申请日：2002-12-13

Applicant: 한국전자통신연구원

Inventor： 진밍루 ,  김수영 ,  오덕길 ,  김재명

IPC: H03H21/00

CPC classification number: H03H21/0012

Abstract: PURPOSE: An interactive filter and a method for filtering the same are provided to have an effect to reduce the complexity of operation. CONSTITUTION: An interactive filter includes a dividing device(401), a sub filtering part(402), an adder(403), an error operation part(404), a pair of filter coefficient update parts(405,406) and a switch(407). The dividing part(401) divides the N number of input signals into G number of signal groups. The sub filtering part(402) performs the filtering to the corresponding signal group. The adder(403) adds the output signals of the sub filtering part(402). The error operation part(404) generates the error signals by comparing the output signal of the adder(403) with the requiring signal. The pair of filter coefficient update parts(405,406) update the filter coefficients of the sub filtering part(402) based on the error signals. And, the switch(407) selectively inputs an error signal to the anyone iteration number k to one selected among the filter coefficient update parts(405,406).

Abstract translation: 目的：提供交互式过滤器及其过滤方法，以有效降低操作的复杂性。 构成：交互式滤波器包括分频装置（401），子滤波部分（402），加法器（403），误差运算部分（404），一对滤波器系数更新部分（405,406）和开关 ）。 分割部（401）将N个输入信号分割为G个信号组。 子滤波部分（402）对相应的信号组进行滤波。 加法器（403）将副滤波部分（402）的输出信号相加。 误差运算部（404）通过将加法器（403）的输出信号与要求信号进行比较来生成误差信号。 一对滤波器系数更新部（405,406）基于误差信号来更新子滤波部（402）的滤波器系数。 并且，开关（407）选择性地将任意迭代数k的误差信号输入到在滤波器系数更新部分（405,406）中选择的一个。

公开(公告)号：KR1020040046533A

公开(公告)日：2004-06-05

申请号：KR1020020074480

申请日：2002-11-27

Applicant: 한국전자통신연구원

Inventor： 임광재 ,  김수영 ,  오덕길

IPC: H04B7/204 ,  H04W84/06

CPC classification number: H04B7/2041 ,  H04B7/216

Abstract: PURPOSE: A device for transmitting a packet in a downlink of a multi-beam satellite communication system and a method therefor are provided to use the same PN(Pseudo Noise) scrambling code in all multi beams of a forward downlink satellite, and to share an orthogonal spread code set, thereby minimizing beam interference and increasing a system capacity. CONSTITUTION: A synchronization sub frame transmits a synchronization chip sequence having predetermined patterns through all sub carriers. All beams have the same synchronization chip sequence. The synchronization chip sequence is used for easily obtaining a downlink signal when a mobile terminal firstly receives a signal of a system, such that a user can estimate a channel state of a transmission link between a satellite and the mobile terminal as obtaining synchronization for a frame start point. A control sub frame transmits system information, user paging, and a control packet to the user. A traffic sub frame transmits a data packet, and informs the user of a used wireless resource, such that the user can receive the packet transmitted through the traffic sub frame.

Abstract translation: 目的：提供一种用于在多波束卫星通信系统的下行链路中发送分组的装置及其方法，以在前向下行链路卫星的所有多波束中使用相同的PN（伪噪声）扰码，并且共享 正交扩展码集合，从而最小化波束干扰并增加系统容量。 构成：同步子帧通过所有子载波发送具有预定模式的同步码片序列。 所有波束具有相同的同步码片序列。 当移动终端首先接收到系统的信号时，同步码片序列用于容易地获得下行链路信号，使得用户可以估计卫星和移动终端之间的传输链路的信道状态来获得帧的同步 起点。 控制子帧向用户发送系统信息，用户寻呼和控制分组。 业务子帧发送数据包，并向用户通知所使用的无线资源，使得用户可以接收通过业务子帧发送的分组。

公开(公告)号：KR1020030095103A

公开(公告)日：2003-12-18

申请号：KR1020020032626

申请日：2002-06-11

Applicant: 한국전자통신연구원

Inventor： 강군석 ,  최권휴 ,  김수영 ,  오덕길

IPC: H04B14/00

CPC classification number: H04B14/002 ,  H04B1/707 ,  H04J13/18

Abstract: PURPOSE: A code management method on multi carrier communication is provided to optimize codes for user codes and miniaturized symbol combinations only, thereby maintaining a minimal PAR(Peak-to-Average Ratio) and reducing complexity by calculating a PAR near to the minimal PAR. CONSTITUTION: A system initializes a user counter as 1(S1), initializes a reference PAR index value as a maximum value(S2), and initializes an orthogonal code counter(S3). The system checks whether an orthogonal code is pre-assigned(S4). If not, the system assigns the orthogonal code to a user, and calculates a temporary PAR index value(S5). The system compares the temporary PAR index value with the reference PAR index value(S6). If the reference PAR index value is bigger, the system resets the temporary PAR index value to the reference PAR index value(S7), and sets the orthogonal code to a temporary assignment code of the user(S8). The orthogonal code counter is increased by 1(S9). The system confirms whether all processes are completed(S10). If so, the system sets the temporary assignment code for the user counter, and increases the user counter by 1(S11,S12), then checks whether assignment codes for all users are set(S13). The orthogonal code assignment process is terminated(S14).

Abstract translation: 目的：提供多载波通信的代码管理方法，以优化用户代码和小型化符号组合的代码，从而通过计算靠近最小PAR的PAR来保持最小的PAR（峰值平均比）并降低复杂性。 构成：系统将用户计数器初始化为1（S1），将参考PAR索引值初始化为最大值（S2），并初始化正交码计数器（S3）。 系统检查是否预分配正交码（S4）。 如果不是，则系统将正交码分配给用户，并计算临时PAR索引值（S5）。 系统将临时PAR指数值与参考PAR指数值进行比较（S6）。 如果参考PAR索引值较大，则系统将临时PAR索引值重置为参考PAR索引值（S7），并将正交码设置为用户的临时分配代码（S8）。 正交码计数器增加1（S9）。 系统确认所有过程是否完成（S10）。 如果是，则系统设置用户计数器的临时分配码，并将用户计数器增加1（S11，S12），然后检查是否设置了所有用户的分配码（S13）。 正交码分配处理结束（S14）。

公开(公告)号：KR1020030039894A

公开(公告)日：2003-05-22

申请号：KR1020010071271

申请日：2001-11-16

Applicant: 한국전자통신연구원

Inventor： 강군석 ,  최권휴 ,  김수영 ,  이호진

IPC: H04L27/26

CPC classification number: H04L27/2621

Abstract: PURPOSE: A method for setting the phase coefficient of a sub-block signal in a partial transmission column orthogonal frequency division multiplexing system is provided to reduce the complexity of the process to set the phase coefficient to reduce the ratio between the peak power to the average power by the sequential process of the phase value as well as to reduce the ratio between the peak power to the average power, effectively. CONSTITUTION: A method for setting the phase coefficient of a sub-block signal in a partial transmission column orthogonal frequency division multiplexing system includes the steps of: initializing(201,202) by setting all phase coefficients of the sub-block signals as the first phase value for the sub-block signal, calculating the peak power obtained by adding the sub-block signal set by the phase coefficient at step(201,202) and for setting(203) the calculated value as a reference peak power, setting(206) the phase values to minimize the peak power of the output signal to the phase coefficients of the each sub-block signal with applying(205) the following phase value as the phase coefficient of each sub-block signal and repeating the above 3 steps for the remained usable phase values.

Abstract translation: 目的：提供一种在部分传输列正交频分复用系统中设置子块信号的相位系数的方法，以减少设置相位系数的过程的复杂性，以降低峰值功率与平均值之间的比值 功率通过相位值的顺序处理以及有效降低峰值功率与平均功率之间的比例。 构成：在部分传输列正交频分复用系统中设置子块信号的相位系数的方法包括以下步骤：通过将子块信号的所有相位系数设置为第一相位值来初始化（201,202） 对于子块信号，计算通过在步骤（201,202）添加由相位系数设置的子块信号而获得的峰值功率，并将计算出的值设置为（203）作为参考峰值功率，设置（206）相位 值，以通过施加（205）后续相位值作为每个子块信号的相位系数，将输出信号的峰值功率最小化为每个子块信号的相位系数，并重复上述3个步骤以保留可用 相位值。

公开(公告)号：KR1020030023991A

公开(公告)日：2003-03-26

申请号：KR1020010056774

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 김수영 ,  양우석 ,  이호진

IPC: H03M13/00

CPC classification number: H03M13/658 ,  H03M13/152 ,  H03M13/19 ,  H03M13/2963 ,  H03M13/2975 ,  H03M13/4146

Abstract: PURPOSE: An iterative decoding method as to block turbo codes above three dimension is provided, which uses soft output information calculated in all other axes as external reliability information at the same time while performing decoding at each axis, and performs iterative decoding by normalizing the soft output properly. CONSTITUTION: According to the method using soft output viterbi algorithm as to block turbo codes which are product codes connecting block codes above three dimension, a transmitter constructs product codes above three dimension and then transmits them. The signal transmitted from the transmitter is constructed as a frame for decoding(S10), and external reliability information corresponding to each axis corresponding to the product codes above three dimension is initialized(S20). Soft output viterbi algorithm(SOVA) is iterated as to each axis in sequence. External reliability information to be used at a specific axis is calculated on the basis of external reliability information calculated in other axis. Soft output information is output by performing decoding using the external reliability information of the specific axis(S30). External reliability information corresponding to the specific axis is calculated which is to be used in a next stage(S40). And it is judged whether an iterative decoding stop condition is satisfied(S50). If the iterative decoding stop condition is satisfied, the iterative decoding is stopped and decoding result is output(S60). If the iterative decoding stop condition is not satisfied, external reliability information of each axis is normalized(S70).

Abstract translation: 目的：提供一种对三维以上的Turbo码进行迭代解码的方法，它在所有其他轴上计算的软输出信息同时作为外部可靠性信息，同时在每个轴进行解码，并通过归一化软件进行迭代解码 输出正确。 构成：根据使用软输出维特比算法对阻塞turbo码进行阻塞的方法，该代码是连接三维以上的块代码的产品代码，发射机构建三维以上的产品代码，然后传输。 从发送器发送的信号被构造为用于解码的帧（S10），并且初始化与上述三维上的乘积码对应的各轴对应的外部可靠性信息（S20）。 软输出维特比算法（SOVA）按顺序对每个轴进行迭代。 基于以其他轴计算的外部可靠性信息，计算要在特定轴使用的外部可靠性信息。 通过使用特定轴的外部可靠性信息进行解码来输出软输出信息（S30）。 计算与特定轴对应的外部可靠性信息，其将在下一阶段中使用（S40）。 并且判断是否满足迭代解码停止条件（S50）。 如果满足迭代解码停止条件，则停止迭代解码并输出解码结果（S60）。 如果迭代解码停止条件不满足，则各轴的外部可靠性信息被归一化（S70）。

公开(公告)号：KR1020000025225A

公开(公告)日：2000-05-06

申请号：KR1019980042217

申请日：1998-10-09

Applicant: 한국전자통신연구원

Inventor： 김수영 ,  이수인

IPC: H03M13/00

CPC classification number: H03M13/6502 ,  H03M13/41

Abstract: PURPOSE: A method is to simply reduce complexity of a decoder as desired without increase of calculation amount by reducing number of path metric calculated by using reliability information of received signal and statistical values(average and variance value) in Trellis decoder. CONSTITUTION: A method for reducing complexity of a decoder comprises the steps of: initializing flag and level of Trellis and then determining reliability of bit received in a present level(301,302); determining a path to be considered according to reliability of received bit and calculating and storing information for a determined path(303-306); and calculating a statistical value of path metric and a reference path metric by using the determined path information in present level for the case where the number of total paths is greater than maximum number of path to be kept, thereby reducing the number of path and moving to the next level(307-310).

Abstract translation: 目的：一种方法是通过减少网格解码器中使用接收信号的可靠性信息和统计值（平均值和方差值）计算的路径度量数来简单地降低解码器的复杂度，而不增加计算量。 构成：降低解码器复杂度的方法包括以下步骤：初始化网格的标志和电平，然后确定当前级别接收的比特的可靠性（301,302）; 根据接收到的比特的可靠性确定要考虑的路径，并计算和存储确定路径的信息（303-306）; 并且在总路径数大于要保持的路径的最大数目的情况下，通过使用当前级别中确定的路径信息来计算路径度量和参考路径量度的统计值，从而减少路径数量和移动 到了一个新的水平（307-310）。

公开(公告)号：KR1019990017963A

公开(公告)日：1999-03-15

申请号：KR1019970041047

申请日：1997-08-26

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 김수영 ,  박세경 ,  김재명 ,  고성찬

IPC: H04B10/07 ,  H04B10/00

Abstract: 본 발명은 비선형 위성통신 채널에서 비선형기를 통과한 상향 링크 잡음 성분의 확률 밀도 함수를 이산적으로 구하여, 수신단에서의 비트 오율을 보다 정확하고 빠르게 구할 수 있는 유사 분석 시뮬레이션 방법에 대한 것으로서, 각 신호 샘플에 대하여 비선형기를 통과하기 이전 상향 링크 잡음의 확률 밀도 함수와 비선형기의 통과 특성을 이용하여 비선형기를 통과한 이후의 확률 밀도 함수를 이산적으로 구하는 단계와 이를 이용하여 수신단에서 비트 오율을 구하는 단계로 구성되는데, 본 발명에서 제공하는 기법은 잡음 성분에 대한 확률 밀도 함수를 쉽게 구할 수 있을 뿐만 아니라 확률 밀도 함수를 구하는 과정을 유사 분석 시뮬레이션 과정 내에 포함시킬 수 있기 때문에 별도의 사전 작업이 필요치 않다는 것과 비선형 채널 뿐만 아니라 채널의 통과 특성이 수학적으로 정의가 되는 어떠한 채널에 대해서도 적용이 가능하다는 장점이 있다.

公开(公告)号：KR1020170102769A

公开(公告)日：2017-09-12

申请号：KR1020160025331

申请日：2016-03-02

Applicant: 한국전자통신연구원

Inventor： 김수영 ,  김태호 ,  임채덕

IPC: G06F11/36

Abstract: 본발명은소프트웨어의동적테스트방법및 시스템에관한것이다. 본발명에따르면, 사용자수준이나클라이언트등의시험소프트웨어내에서구동하는제1 시험수행부및 시스템수준이나서버등의시험대상소프트웨어내에서구동하는제2 시험수행부를포함하며, 상기제1 시험수행부는, 등록된시험요청을상기제2 시험수행부로전달하는시험요청관리모듈과, 상기제2 시험수행부로부터획득한시험응답을참조로하여상기시험요청에대한시험성공또는실패를판단하는시험응답평가모듈을포함하고, 상기제2 시험수행부는, 상기시험요청에대한상기시험응답을생성하는상황수집수행모듈을포함하는소프트웨어의동적시험시스템이제공될수 있다.

Abstract translation: 本发明涉及用于软件动态测试的方法和系统。 根据本发明，提供了一种信息处理装置，包括运行在诸如用户级别或客户机的测试软件中的第一测试执行单元以及运行在诸如系统级别或服务器的测试目标软件中的第二测试执行单元， 测试请求管理模块，用于将所述注册的测试请求发送到所述第二测试执行单元;测试响应评估单元，用于基于从所述第二测试执行单元获取的所述测试响应来确定所述测试请求的成功或失败; 模块，并且第二测试执行单元可以配备有软件的动态测试系统，其包括用于生成测试请求的测试响应的情况收集执行模块。

公开(公告)号：KR1020130137897A

公开(公告)日：2013-12-18

申请号：KR1020120061572

申请日：2012-06-08

Applicant: 한국전자통신연구원

Inventor： 김수영

IPC: G06F15/16 ,  G06F17/30 ,  G06F11/14

CPC classification number: G06F17/30283 ,  G06F17/30091 ,  G06F17/30224 ,  G06F15/16 ,  G06F11/14 ,  G06F17/30997

Abstract: Provided is a method for managing data in an asymmetric cluster file system to make a metadata server effectively control a data server, and therethrough, to configure or reconfigure a device and a file layout in a state of taking measure against a failure of the data server or adding a data server after copying data. The provided method for managing the data in the asymmetric cluster file system, if receiving a request for opening a file not existing at the data servers, generates a file at the data server by allocating a file handle value and a file name, copies the file generated or stored at the data server based on a preset copy level, and performs a process for the files stored at the data servers. [Reference numerals] (10) Metadata server;(20a) Data Server 1 (DS_1);(20b) Data Server 2 (DS_2);(20d) Data server n (DS_n);(40) Client

Abstract translation: 提供了一种用于管理非对称集群文件系统中的数据的方法，以使元数据服务器有效地控制数据服务器，并且通过其中的方式来配置或重新配置在针对数据服务器的故障进行测量的状态下的设备和文件布局 或在复制数据后添加数据服务器。 提供的用于管理非对称集群文件系统中的数据的方法，如果接收到打开不存在于数据服务器上的文件的请求，则通过分配文件句柄值和文件名在数据服务器生成文件，复制文件 基于预设的复制级别生成或存储在数据服务器上，并且对存储在数据服务器中的文件执行处理。 （10）元数据服务器;（20a）数据服务器1（DS_1）;（20b）数据服务器2（DS_2）;（20d）数据服务器n（DS_n）;（40）客户端

公开(公告)号：KR1020120038616A

公开(公告)日：2012-04-24

申请号：KR1020100100157

申请日：2010-10-14

Applicant: 한국전자통신연구원

Inventor： 유재상 ,  지형근 ,  김수영 ,  이준석 ,  강석빈

IPC: H04N5/232 ,  H04N5/262

CPC classification number: G06T19/006 ,  G06K9/00442 ,  G06K9/00744

Abstract: PURPOSE: A method for providing tangible markerless AR(Augmented Reality) and a system thereof are provided to update a key frame and use the updated key frame to estimate a page posture. CONSTITUTION: An image collecting unit collects an image about learning subject(S310). A feature point extracting unit extracts a feature point from a collected image(S302). When a recognized page is wrong, a page recognizing unit recognizes the current page(S304,S306). A page tracking unit tracks a page posture(S308). When the posture is correctly estimated, a key frame updating unit updates a key frame according to a user environment(S310,S312).

Abstract translation: 目的：提供一种提供有形无标记AR（增强现实）及其系统的方法来更新关键帧并使用更新的关键帧来估计页面姿势。 构成：图像采集单元收集关于学习对象的图像（S310）。 特征点提取单元从收集的图像中提取特征点（S302）。 当识别页错误时，页识别单元识别当前页（S304，S306）。 页面跟踪单元跟踪页面姿势（S308）。 当正确估计姿势时，关键帧更新单元根据用户环境更新关键帧（S310，S312）。