公开(公告)号：KR1020050066488A

公开(公告)日：2005-06-30

申请号：KR1020030097781

申请日：2003-12-26

Applicant: 한국전자통신연구원

Inventor： 박소라 ,  이봉호 ,  김우석 ,  정영호 ,  함영권 ,  이수인

IPC: H04N7/08

CPC classification number: H04N21/440236 ,  H04N21/488

Abstract: 1. 청구범위에 기재된 발명이 속하는 기술분야
본 발명은 디지털 방송 수신용 데이터 서비스 장치에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 디지털 방송 수신 시스템에서 데이터 서비스 정보를 음성 및 화면을 이용해 보다 효과적으로 사용자에게 제공하기 위한 데이터 서비스 장치를 제공하고자 함.
3. 발명의 해결 방법의 요지
본 발명은, 디지털 방송 수신 시스템에서의 데이터 서비스 장치에 있어서, 디지털 방송망을 통해 데이터 서비스 문서, 상기 데이터 서비스 문서의 음성 출력 형식이 서술된 시나리오 문서, 상기 데이터 서비스 문서의 화면 출력 형식이 서술된 스타일 시트 문서를 수신받기 위한 문서수신수단; 문서 파싱을 통해 상기 문서의 구조와 형태를 파악하여, 상기 시나리오 문서를 바탕으로 상기 데이터 서비스 문서를 문서 변환 엔진을 통해 음성 출력에 적합한 형태(바람직하게는 음성출력문서)로 변환하거나, 상기 스타일 시트 문서를 바탕으로 상기 데이터 서비스 문서를 문서 변환 엔진을 통해 화면 출력에 적합한 형태(바람직하게는 화면출력문서)로 변환하기 위한 문서변환수단; 및 상기 변환된 문서를 음성 및/또는 화면 출력하여, 데이터 서비스를 제공하기 위한 데이터 서비스수단을 포함함.
4. 발명의 중요한 용도
본 발명은 디지털 방송 수신기 등에 이용됨.

公开(公告)号：KR1020050021804A

公开(公告)日：2005-03-07

申请号：KR1020030059029

申请日：2003-08-26

Applicant: 한국전자통신연구원

Inventor： 배병준 ,  이진환 ,  이용훈 ,  조삼모 ,  정영호 ,  함영권 ,  이수인

IPC: H04N21/233 ,  H04N7/24 ,  G10L19/00

CPC classification number: H04N21/41422 ,  H04H20/86 ,  H04H20/95 ,  H04H60/07 ,  H04H2201/20 ,  H04N21/2381 ,  H04N21/2402 ,  H04N21/41407 ,  H04N21/23406 ,  H04N21/23418 ,  H04N21/2343

Abstract: PURPOSE: A media stream transforming apparatus and method for providing multimedia service in a DAB(Digital Audio Broadcasting) transmission system are provided to apply MPEG-2 system based multimedia data to the DAB transmission system to provide multimedia broadcasting service including moving pictures. CONSTITUTION: A media stream transforming apparatus includes a media transport stream receiver(201) for receiving a media transport stream, a media transport stream analyzer(202) for calculating a transfer rate of the media transport stream and analyzes the state of the stream, and a system manager(205) through which a system manager inputs/outputs control information using a graphic user interface. The apparatus further includes a system controller(206) for receiving control signals from the media transport stream analyzer and the system manager to transmit the control signals to a DAB transmission system, a media transport stream storage unit(203) for temporarily storing the media transport stream output from the media transport stream analyzer, and an ETI(Ensemble Transport Interface) frame manager(207) for controlling the media transport stream storage unit and processing the control signals from the system controller. The apparatus also has an ETI frame construction unit(204) for constructing an ETI frame using the media transport stream of the media transport stream storage unit, and an ETI transmitter(208) for transmitting the ETI frame to a physical level.

Abstract translation: 目的：提供一种用于在DAB（数字音频广播）传输系统中提供多媒体服务的媒体流变换装置和方法，以将基于MPEG-2的多媒体数据应用于DAB传输系统，以提供包括运动图像的多媒体广播服务。 媒体流转换装置包括用于接收媒体传输流的媒体传输流接收器（201），用于计算媒体传输流的传送速率并分析流的状态的媒体传输流分析器（202），以及 系统管理器（205），系统管理器通过其使用图形用户界面输入/输出控制信息。 该装置还包括系统控制器（206），用于从媒体传输流分析器和系统管理器接收控制信号以将控制信号发送到DAB传输系统，媒体传输流存储单元（203）用于临时存储媒体传输 媒体传输流分析器的流输出，以及用于控制媒体传输流存储单元并处理来自系统控制器的控制信号的ETI（集合传输接口）帧管理器（207）。 该装置还具有用于使用媒体传输流存储单元的媒体传输流来构建ETI帧的ETI帧构造单元（204）和用于将ETI帧发送到物理层的ETI发射机（208）。

公开(公告)号：KR100461547B1

公开(公告)日：2004-12-16

申请号：KR1020020064674

申请日：2002-10-22

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 김성락 ,  정영호 ,  최인경 ,  이용훈

IPC: H04B7/04

CPC classification number: H04B7/0413 ,  H04B7/0613 ,  H04B7/0851 ,  H04B7/0854

Abstract: A transmission apparatus for a DS/CDMA system including a multiple-input multiple output MIMO antenna system is disclosed. The apparatus includes a transmitter for transmitting data by applying a different scramble code to each transmitted data through a plurality of transmitting antennas. The apparatus also includes a receiver for receiving the transmitted data by obtaining a diversity gain based on the maximum order of the diversity in order to effectively detect the data. The present invention achieves an excellent detection performance by receiving data with a full order of diversity, which is a multiple of the number of receiving antennas and the number of multipath, without complicated operation such as a decision feed equalizer.

Abstract translation: 公开了一种用于包括多输入多输出MIMO天线系统的DS / CDMA系统的传输设备。 该设备包括发射机，用于通过将多个发射天线应用到每个发射数据的不同扰码来发射数据。 该装置还包括接收器，用于通过基于分集的最大次序获得分集增益来接收发送的数据，以有效地检测数据。 本发明通过接收具有接收天线数量和多径数量的整数倍的全分集数据的优异检测性能，而不需要诸如决策反馈均衡器的复杂操作。

公开(公告)号：KR100450849B1

公开(公告)日：2004-10-01

申请号：KR1020020052764

申请日：2002-09-03

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 최인경 ,  정영호 ,  김성락 ,  홍승철 ,  이용훈

IPC: H04B1/711

CPC classification number: H04B1/71055 ,  H04B1/7115 ,  H04B7/04 ,  H04B7/0854 ,  H04L2025/03605

Abstract: An adaptive interference suppression receiver for a DS/CDMA system includes: input signal generators outputting a part of received signals of receiver antennas that has a coding block's transfer code; adaptive filter blocks filtering a complex signal output from the input signal generators with a tap weight updated based on a constraint MMSE criterion and estimating phase and amplitude components of a specific user channel using the filtering output signal to generate a channel-estimated signal; a signal restorer combining the channel-estimated signal and the filtering output signal and restoring an original signal; a signal selector for selecting known training data signal or the restored signal; and error generators comparing the channel-estimated signal and the filtering output signal and calculating an error between the two signals.

Abstract translation: 用于DS / CDMA系统的自适应干扰抑制接收机包括：输入信号发生器，输出接收天线的接收信号的一部分，其具有编码块的传送码; 自适应滤波器块利用基于约束MMSE准则更新的抽头权重对从输入信号生成器输出的复信号进行滤波，并且使用滤波输出信号来估计特定用户信道的相位和振幅分量以生成信道估计信号; 信号恢复器，将信道估计信号和滤波输出信号组合并恢复原始信号; 信号选择器，用于选择已知的训练数据信号或恢复的信号; 以及误差生成器，将信道估计信号与滤波输出信号进行比较并计算两个信号之间的误差。

公开(公告)号：KR100384897B1

公开(公告)日：2003-05-23

申请号：KR1020010036184

申请日：2001-06-25

Applicant: 한국전자통신연구원

Inventor： 김성락 ,  최진호 ,  정영호 ,  홍승철 ,  이용훈

IPC: H04B1/7115

Abstract: PURPOSE: An adaptive rake receiving device having at least one restriction in a mobile communication system is provided to estimate each multi-path element channel phase and amplitudes by using an adaptive filter output, thereby removing all multi-user interferences to have channel estimated values without a shit from the adaptive filter output. CONSTITUTION: Transmission delay compensating buffers(100,200) collect parts only occupied by transmission codes of each multi-path element, and transmit the collected parts to adaptive filters(110,210). The adaptive filers(110,210) filter complex receiving signals according to tab weight controlled at predetermined intervals. Channel estimators(130,230) estimate phase elements and amplitude elements of specific user channels. A signal restorer couples channel estimated result signals of the channel estimators(130,230) with a filtered receiving signal applied from the adaptive filters(110,210), and restores to original signals. A selector selects one of the restored signals. A reference signal generator generates a reference signal by using the signal of the selector and the channel estimated result signals. An error calculator calculates an error between the reference signal and the filtered receiving signal. A tap weight controller controls the tab weight on the basis of a constraint MMSE criterion.

Abstract translation: 目的：提供一种在移动通信系统中具有至少一个限制的自适应瑞克接收设备，用于通过使用自适应滤波器输出来估计每个多径元件信道相位和振幅，由此消除所有多用户干扰以具有信道估计值而无需 一个来自自适应滤波器输出的狗屎。 构成：传输延迟补偿缓冲器（100,200）收集仅由每个多路径元件的传输码占用的部分，并将收集的部分传输到自适应滤波器（110,210）。 自适应滤波器（110,210）根据以预定间隔控制的标签权重来过滤复杂的接收信号。 信道估计器（130,230）估计特定用户信道的相位元素和幅度元素。 信号恢复器将信道估计器（130,230）的信道估计结果信号与从自适应滤波器（110,210）施加的滤波后的接收信号相耦合，并恢复成原始信号。 选择器选择一个恢复的信号。 参考信号生成器通过使用选择器的信号和信道估计结果信号来生成参考信号。 误差计算器计算参考信号和滤波后的接收信号之间的误差。 轻拍重量控制器基于约束MMSE标准来控制标签权重。

公开(公告)号：KR1020010064229A

公开(公告)日：2001-07-09

申请号：KR1019990062379

申请日：1999-12-27

Applicant: 한국전자통신연구원

Inventor： 정영호 ,  박소라 ,  오길남 ,  박재홍 ,  김건

IPC: H04H20/48 ,  H04H20/47

Abstract: PURPOSE: A DAB(Digital Audio Broadcasting) system in an FM(Frequency Modulation) band is provided to implement a DAB service and to maintain a data transmission speed, and to easily convert an analog broadcasting into a digital broadcasting. CONSTITUTION: A DAB(Digital Audio Broadcasting) system installs a hybrid DAB system applied to a channel having an existing analog FM(Frequency Modulation) signal and an all digital DAB system applied to a channel not-having the analog FM signal, and perform a DAB in an FM band. The hybrid DAB system performs an FM relating to a sampling signal to generate an FM signal. The hybrid DAB system performs an audio coding, a channel coding, an interleaving relating to the sampling signal, and modulates the signal by an OFDM(Orthogonal Frequency Division Multiplexing) modulator to generate a DAB signal. The all digital DAB system performs the audio coding, the channel coding, the interleaving relating to a sampling audio signal and modulates the sampling audio signal by the OFDM modulator to generate the DAB signal, then transmits the DAB signal to the FM band.

Abstract translation: 目的：提供FM（频率调制）频带中的DAB（数字音频广播）系统来实现DAB服务并保持数据传输速度，并且可以容易地将模拟广播转换成数字广播。 规定：DAB（数字音频广播）系统将应用于具有现有模拟FM（频率调制）信号和全数字DAB系统的信道的混合DAB系统安装到不具有模拟FM信号的信道上，并执行 DAB在FM频段。 混合DAB系统执行与采样信号相关的FM以产生FM信号。 混合DAB系统执行音频编码，信道编码，与采样信号相关的交织，并通过OFDM（正交频分复用）调制器对信号进行调制以产生DAB信号。 全数字DAB系统执行音频编码，信道编码，与采样音频信号相关的交织，并通过OFDM调制器调制采样音频信号以产生DAB信号，然后将DAB信号发送到FM频带。