公开(公告)号：KR100903877B1

公开(公告)日：2009-06-24

申请号：KR1020070130390

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 배재휘 ,  김영수 ,  김주연 ,  임종수 ,  이수인

IPC: H04L27/26 ,  H04B7/04 ,  H04B7/02

Abstract: 신호 수신 장치는 복수의 안테나를 통해 복수의 신호를 수신하고, 복수의 신호로부터 제1 계층 추정 심볼열 및 복수의 제2 계층 추정 심볼열을 생성하며, 복수의 제2 계층 추정 심볼열에 가중치를 적용하여 복수의 가중치 적용 심볼열을 생성한다. 이후 복수의 가중치 적용 심볼열에 대해 덧셈 연산을 수행하여 다이버시티 신호를 생성하고, 제1 계층 추정 심볼열을 바탕으로 제1 계층 신호를 생성하며, 다이버시티 신호를 바탕으로 제2 계층 신호를 생성한다. 이를 통해 새로 추가되는 신호의 수신율을 높일 수 있다.
방송, 계층 변조, 다이버시티, OFDM

公开(公告)号：KR1020090065735A

公开(公告)日：2009-06-23

申请号：KR1020070133202

申请日：2007-12-18

Applicant: 한국전자통신연구원

Inventor： 윤국진 ,  허남호 ,  김진웅 ,  이수인 ,  이윤진 ,  임영권

IPC: H04N21/83 ,  H04N13/00

CPC classification number: H04N21/234318 ,  H04N13/183 ,  H04N13/261 ,  H04N19/597 ,  H04N21/23412 ,  H04N21/44012

Abstract: A 3D(Dimensional) contents scene playback method and a device thereof are provided to support 3D text through a scene descriptor by suggesting a 3D text node including text information and disparity information of the text information to the scene descriptor. An MPEG(Moving Picture Expert Group)-4 control signal generator generates an MPEG-4 control signal including a scene descriptor. The scene descriptor includes 3D text node information for displaying text in 3D. The 3D text node information includes a left string field storing a first text corresponding to a left staring point, a right string field storing a second text corresponding to a right starting point, and a disparity field storing information for disparity of the first and second text.

Abstract translation: 提供3D（尺寸）内容场景回放方法及其装置，通过向场景描述符建议包括文本信息和文本信息的视差信息的3D文本节点，通过场景描述符来支持3D文本。 MPEG（运动图像专家组）-4控制信号发生器产生包括场景描述符的MPEG-4控制信号。 场景描述符包括用于以3D显示文本的3D文本节点信息。 3D文本节点信息包括存储对应于左起始点的第一文本的左字符串字段，存储对应于右起始点的第二文本的右字符串字段和存储第一和第二文本的不一致信息的视差字段 。

公开(公告)号：KR1020090065408A

公开(公告)日：2009-06-22

申请号：KR1020080024782

申请日：2008-03-18

Applicant: 한국전자통신연구원 ,  부산대학교 산학협력단

Inventor： 박성익 ,  이용태 ,  임종수 ,  이수인 ,  이지봉 ,  김완진 ,  김형남 ,  손경식

IPC: H04B7/14

CPC classification number: H04B7/15528 ,  H04B1/1081 ,  H04B1/12 ,  H04B1/16

Abstract: An on channel repeater and a method thereof are provided to compensate for channel distortion occurring between a main transmitter and a repeater, thereby transmitting an output signal of high quality which is similar to a transmitting signal of the main transmitter the most through the on channel. The first subtraction unit(903) subtracts a feedback signal and a replica of a multi path signal from a signal of receiving units(901,902). A replica generating unit(913) generates each filter coefficient in a pilot section and a data section. The replica generating unit generates the feedback signal and the replica of the multi path signal by using the generated filter coefficient. Transmitting units(911,912) transmit an output signal from the first subtraction unit.

Abstract translation: 提供了一种在信道中继器及其方法来补偿在主发射机和中继器之间发生的信道失真，由此传输与主发射机的最多通过导频信道的发射信号相似的高质量输出信号。 第一减法单元（903）从接收单元（901,902）的信号中减去反馈信号和多径信号的副本。 复制产生单元（913）在导频部分和数据部分中产生每个滤波器系数。 复制品生成单元通过使用所生成的滤波器系数来生成反馈信号和多径信号的副本。 发送单元（911,912）从第一减法单元发送输出信号。

公开(公告)号：KR1020090065399A

公开(公告)日：2009-06-22

申请号：KR1020080008494

申请日：2008-01-28

Applicant: 한국전자통신연구원

Inventor： 정영호 ,  권오형 ,  이수인

IPC: G06F21/00 ,  G06F17/00

Abstract: A method and an apparatus for detecting a downloadable conditional access system host with duplicated secure micro are provided to efficiently determine whether an SM is duplicated using authentication time difference information associated with a value of a difference between a time when a host is finally authenticated in a first address and a time when the host is authenticated in a second address. A head-end system(110) includes an AP(Authentication Proxy) server(111), an LKS(Local Key Server)(112), a DPS(Downloadable Conditional Access System Provisioning Server)(113), and an IPS(Integrated Personalization System) server(114). The head-end system is installed separately from an existing CAS(Conditional Access System) server(140). Also, the head-end system is operated independently from the CAS server, and thus is compatible with an existing cable broadcasting system. The LKS stores and manages information about keys of servers such as a key of an SM(Secure Micro), a history of ID(IDentification) information of the SM, a key of the AP server, a history of ID information of the AP server, and history of key information of the IPS server. Also, the DPS manages download-related information and policy associated with a DCAS service. The IPS server stores and manages an SM client to be downloaded to a DCAS host(160). When the DCAS host connected to a cable network exists, the AP server transmits information associated with an SM of the DCAS host to a TA(Trusted Authority)(120) to authenticate the DCAS host. The TA is a reliable external authentication device. The TA authenticates the DCAS host using the received information associated with the SM.

Abstract translation: 提供了一种用于检测具有重复的安全微型的可下载条件访问系统主机的方法和装置，以有效地确定使用与主机最终被认证的时间之间的差异的值相关联的认证时差信息来复制SM 第一个地址和主机在第二个地址中进行身份验证的时间。 前端系统（110）包括AP（认证代理）服务器（111），LKS（本地密钥服务器）（112），DPS（可下载条件接入系统配置服务器）（113）和IPS 个性化系统）服务器（114）。 前端系统与现有的CAS（条件访问系统）服务器分开安装（140）。 此外，前端系统独立于CAS服务器操作，因此与现有的有线广播系统兼容。 LKS存储和管理关于诸如SM（Secure Micro）的密钥，SM的ID（识别）信息的历史，AP服务器的密钥，AP服务器的ID信息的历史等的服务器的密钥的信息 ，以及IPS服务器的关键信息历史。 此外，DPS管理与DCAS服务相关联的下载相关信息和策略。 IPS服务器存储和管理要下载到DCAS主机的SM客户端（160）。 当连接到有线网络的DCAS主机存在时，AP服务器将与DCAS主机的SM相关联的信息发送到TA（可信权威机构）（120），以认证DCAS主机。 TA是可靠的外部认证设备。 TA使用与SM相关联的接收信息来认证DCAS主机。

公开(公告)号：KR1020090063410A

公开(公告)日：2009-06-18

申请号：KR1020070130754

申请日：2007-12-14

Applicant: 한국전자통신연구원

Inventor： 이광순 ,  윤정일 ,  김광용 ,  최서미 ,  임종수 ,  이수인 ,  양규태

IPC: H04N21/236 ,  H04N21/434

CPC classification number: H04N21/631 ,  H04H2201/11 ,  H04N21/234327

Abstract: A signal transmission method and a signal receiving method in a broadcasting system are provided to mutually link services of two ensemble transfer frames, thereby offering a high-quality data service. An ensemble of a base layer and the ensemble of an enhancement layer are produced from data content of a broadcast signal. A base layer ensemble processor(130) comprises a base layer service component. The enhancement layer ensemble comprises an enhancement layer service component. Ensemble transfer frames of the basic layer and the enhancement layer are individually generated from the ensemble of the base layer and the ensemble of the enhancement layer. The ensemble transfer frames of the enhancement layer and the base layer are transmitted. The ensemble transfer frame of the enhancement layer comprises service control information.

Abstract translation: 提供广播系统中的信号传输方法和信号接收方法，以相互链接两个集成传送帧的服务，从而提供高质量的数据服务。 从广播信号的数据内容产生基本层的集合和增强层的集合。 基层综合处理器（130）包括基层服务组件。 增强层集合包括增强层服务组件。 基本层和增强层的组合传送帧从基本层和增强层的整体分别产生。 传输增强层和基层的整体传送帧。 增强层的集合传送帧包括业务控制信息。

公开(公告)号：KR1020090062907A

公开(公告)日：2009-06-17

申请号：KR1020070130391

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 김건 ,  음호민 ,  이용태 ,  배병준 ,  박소라 ,  박성익 ,  임종수 ,  이수인

IPC: H04B7/14

CPC classification number: H04B7/15585 ,  H04J2011/0009 ,  H04L27/01 ,  H04L27/2656

Abstract: A relay apparatus and a relay method thereof are provided to increase the power of a signal re-transmitted through a transmission antenna by removing a feedback signal from a signal received through a receiving antenna. A receiver(100) frequency-down-converts an RF receiving signal to an IF(Intermediate Frequency) signal. An echo remover(200) removes a feedback signal from an IF receiving signal. A demodulator(300) demodulates a T-DMB frame in the IF signal where the feedback signal is removed, and then extracts/outputs a phase reference symbol to an equalizer. The equalizer updates the coefficient of a filter to compensate for the distortion of the IF signal.

Abstract translation: 提供一种中继装置及其中继方法，通过从通过接收天线接收的信号中去除反馈信号来增加通过发送天线再次发送的信号的功率。 接收机（100）将RF接收信号降频转换成IF（中频）信号。 回波去除器（200）从IF接收信号中去除反馈信号。 解调器（300）解调除去反馈信号的IF信号中的T-DMB帧，然后将相位参考符号提取/输出到均衡器。 均衡器更新滤波器的系数以补偿IF信号的失真。

公开(公告)号：KR1020090062439A

公开(公告)日：2009-06-17

申请号：KR1020070129683

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 라상중 ,  김도욱 ,  이응돈 ,  이재호 ,  송윤정 ,  이수인

IPC: H04L12/20 ,  H04L25/02 ,  H04L27/34

CPC classification number: H04L27/34 ,  H03L7/093 ,  H03L7/095 ,  H04L12/2801 ,  H04L2027/0069

Abstract: An apparatus for removing the phase jitter in a cable modem and a method thereof are provided to remove the phase jitter in a slicer of a carrier restoring device by using an output value of a low pass filter within an automatic gain control device. A power detector(410) outputs the mean of an inputted signal. An error measurement unit(420) calculates the error value between the mean value received from the power detector and a reference signal. The first loop filter(430) controls the amplitude of the inputted signal based on the calculated error value and then outputs the controlled signal to a low-pass filter(440). The low-pass filter outputs the signal to a gain control amplifier(400).

Abstract translation: 提供了用于消除电缆调制解调器中的相位抖动的装置及其方法，以通过使用自动增益控制装置内的低通滤波器的输出值来消除载波恢复装置的限幅器中的相位抖动。 功率检测器（410）输出输入信号的平均值。 误差测量单元（420）计算从功率检测器接收的平均值与参考信号之间的误差值。 第一环路滤波器（430）基于计算出的误差值来控制输入信号的振幅，然后将受控信号输出到低通滤波器（440）。 低通滤波器将信号输出到增益控制放大器（400）。

公开(公告)号：KR1020090061418A

公开(公告)日：2009-06-16

申请号：KR1020070128425

申请日：2007-12-11

Applicant: 한국전자통신연구원

Inventor： 배재휘 ,  김영수 ,  김주연 ,  임종수 ,  이수인

IPC: H04L27/26 ,  H04N7/015 ,  H04L7/04

CPC classification number: H04L27/2649 ,  H04L7/04 ,  H04N7/015

Abstract: An apparatus and a method for receiving a signal in a digital broadcasting system are provided to improve a reception rate of a newly added signal to the existing digital broadcasting system by generating a first hierarchical signal and a second hierarchical signal based on the hierarchical modulated signal. A plurality of receivers(210) correspond to a plurality of antennas and receive a plurality of signals passing through different paths in a wireless channel by using the plurality of antennas. The plurality of antennas follows a plurality of orientation angles corresponding to the plurality of antennas. The plurality of signals have different channel characteristics according to the plurality of orientation angles. An energy calculator(220) includes information about each energy of the plurality of signals by calculating each energy of the plurality of signals. A signal selector(230) selects one signal among the plurality of signals based on the energy information. A hierarchical modulating unit(250) outputs a first hierarchical modulation signal and a second hierarchical modulation signal by hierarchically modulating the signal.

Abstract translation: 提供一种用于在数字广播系统中接收信号的装置和方法，用于通过基于分级调制信号产生第一分层信号和第二分层信号来提高对现有数字广播系统的新添加信号的接收速率。 多个接收器（210）对应于多个天线，并且通过使用多个天线来接收通过无线信道中的不同路径的多个信号。 多个天线遵循对应于多个天线的多个定向角度。 多个信号根据多个取向角具有不同的通道特性。 能量计算器（220）通过计算多个信号中的每个能量来包括关于多个信号中的每个能量的信息。 信号选择器（230）基于能量信息来选择多个信号中的一个信号。 分层调制单元（250）通过对信号进行分层调制来输出第一分层调制信号和第二分层调制信号。

公开(公告)号：KR1020090061120A

公开(公告)日：2009-06-16

申请号：KR1020070127979

申请日：2007-12-11

Applicant: 한국전자통신연구원

Inventor： 김희정 ,  권은정 ,  김순철 ,  권오형 ,  이수인

IPC: H04W12/06 ,  H04L9/32 ,  H04W8/24

CPC classification number: H04N7/1675 ,  H04N21/25816 ,  H04N21/26606 ,  H04N21/63345

Abstract: A method and an apparatus for managing and transmitting a conditional access application program per a kind to supply a downloadable conditional access service are provided to minimize an interface with a DCAS system, thereby guaranteeing security and freedom to a CAS service provider. A DCAS(Downloadable Conditional Access System) manager device stores a CAS(Conditional Access System) application program in an IPS(Integrated Personalization Server)(140) and supplies IPS access information or CAS application program to be transmitted to a terminal to an authentication proxy. The authentication proxy(130) provides mutual authentication, the IPS access information and installation related information about the terminal. The IPS transmits the CAS application program to the terminal.

Abstract translation: 提供一种用于管理和发送每种类型的条件访问应用程序以提供可下载条件访问服务的方法和装置，以最小化与DCAS系统的接口，由此保证对CAS服务提供商的安全性和自由度。 DCAS（可下载条件访问系统）管理器设备将一个CAS（有条件访问系统）应用程序存储在IPS（集成个性化服务器）（140）中，并提供IPS接入信息或CAS应用程序以发送给终端到认证代理 。 验证代理（130）提供相关认证，IPS访问信息和有关终端的安装相关信息。 IPS将CAS应用程序发送到终端。

公开(公告)号：KR100902334B1

公开(公告)日：2009-06-12

申请号：KR1020070109608

申请日：2007-10-30

Applicant: 한국전자통신연구원 ,  부산대학교 산학협력단

Inventor： 박성익 ,  이용태 ,  임종수 ,  이수인 ,  이지봉 ,  김완진 ,  김형남 ,  손경식

IPC: H04B7/14 ,  H04B3/23

CPC classification number: H04B7/15585

Abstract: 본 발명은 파일럿 분할을 통해 궤환신호를 제거하는 동일채널 중계장치 및 그 방법에 관한 것으로, 파일럿 분할을 통하여 필터계수의 갱신 간격을 축소(필터계수의 생성 횟수를 증가)시킴으로써, 궤환채널이 빠르게 변화하는 상황에서도 신속하게 대응하여 궤환신호를 효율적으로 제거할 수 있는, 파일럿 분할을 통해 궤환신호를 제거하는 동일채널 중계장치 및 그 방법을 제공하고자 한다.
이를 위하여, 본 발명은 동일채널 중계장치에 있어서, 신호를 수신하기 위한 수신 수단; 상기 수신 수단으로부터의 신호에서 궤환신호(feedback signal)의 레플리카(replica)를 감산하여 궤환신호를 제거하기 위한 감산 수단; 파일럿 분할을 이용하여 필터계수를 생성하고 상기 생성된 필터계수를 사용하여 상기 궤환신호의 레플리카를 생성하여 상기 감산 수단으로 피드백시키기 위한 레플리카 생성 수단; 및 상기 감산 수단으로부터의 출력신호를 전송하기 위한 전송 수단을 포함한다.
동일채널, 중계장치, 궤환신호, 분할된 파일럿 저장, 레플리카 산출, 레플리카 감산