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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
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。
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公开(公告)号：KR1020150120598A
公开(公告)日：2015-10-28
申请号：KR1020140046301
申请日：2014-04-17
Applicant: 한국전자통신연구원
IPC: H04H20/59
Abstract: 방송송신국으로부터수신한방송신호를복조하여재난메시지를추출하는단계, 재난메시지를통해재난지역을확인하고, 재난방송중계장치의중계권역에재난지역이포함되는지분석하는단계, 중계권역에재난지역이포함되는경우, 재난메시지가삽입된방송신호를재전송하는단계를포함하는재난방송중계방법및 장치가제공된다.
Abstract translation: 本发明提供一种灾害广播方法和灾害广播装置。 灾害广播方法包括以下步骤：通过解调从广播发送站接收的广播信号来提取灾难消息; 从灾害信息中识别灾区，分析灾区是否包含灾害广播设备所在的地区; 并且如果灾区包括在覆盖区域中，则重新发送插入灾难消息的广播信号。
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84.发明公开재난 방송 메시지 프레임을 모니터링 및 분석하는 검증장치, 자동인지 재난방송 송신 시스템 및 자동인지 재난방송 수신 장치 审中-实审用于监控紧急广播信息帧的DDETECTING设备，紧急唤醒服务发射机和接收器
公开(公告)号：KR1020150101325A
公开(公告)日：2015-09-03
申请号：KR1020140022904
申请日：2014-02-26
Applicant: 한국전자통신연구원
Abstract: 재난 방송 메시지 프레임이 정상적으로 구성되어 있는지 모니터링 및 분석하는 검증 장치는 재난 방송 메시지 프레임의 전송 프레임 계층을 분석하는 전송 프레임 분석부, 상기 재난 방송 메시지 프레임의 서비스 패킷 계층을 분석하는 서비스 패킷 분석부, 상기 재난 방송 메시지 프레임의 메타데이터를 분석하는 메타데이터 분석부, 상기 재난 방송 메시지 프레임의 서비스 패킷을 복호화 또는 파싱하는 서비스 데이터 복호화부, 상기 전송 프레임 분석부, 상기 서비스 패킷 분석부, 상기 메타데이터 분석부로부터 각각의 분석 결과 정보를 수신하는 시스템 제어부, 그리고 상기 시스템 제어부로부터 입력받은 상기 각각의 분석 결과 정보 및 상기 서비스 데이터 복호화부로부터 입력받은 복호화 또는 파싱된 서비스 데이터를 화면 상에 출력하는 디스플 레이부를 포함한다.
Abstract translation: 本发明涉及一种用于监视和分析紧急广播消息帧是否正常配置的验证装置，其包括：用于分析紧急广播消息帧的传输帧层的传输帧分析单元; 服务分组分析单元，用于分析紧急广播消息帧的服务分组层; 用于分析紧急广播消息帧的元数据的元数据分析单元; 服务数据解码单元，用于解码或解析紧急广播消息帧的服务分组; 系统控制单元，用于从传输帧分析单元，服务分组分析单元和元数据分析单元接收关于每个分析结果的信息; 以及显示单元，用于在屏幕上输出从系统控制单元接收到的关于每个分析结果的信息以及从服务数据解码单元接收的解码或解析的服务数据。
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公开(公告)号：KR1020140079579A
公开(公告)日：2014-06-27
申请号：KR1020120147315
申请日：2012-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04H20/59 , H04H20/71 , H04H60/50 , H04H60/76 , H04H2201/11
Abstract: The present invention relates to an apparatus and a method for providing emergency information and supplementary information. A terminal for providing emergency information and supplementary information includes an EWAS processor to receive an EWAS signal, to determine whether an EWC is included in the EWAS signal, and to decode the EWC for acquiring the emergency information and the supplementary information; a region based service unit to decode the emergency information and the supplementary information to acquire service information including at least one service item, and to express an item label, an item description, broadcasting link information, and communications link information on the service item; and a terminal base function unit accessing a Wi-Fi network or a mobile communications network to perform communications or accessing a T-DMB network to receive broadcasting according to selection of a user, and to control web browsing environment for acquiring additional information through Internet access provided from the mobile communications network or Wi-Fi network. An automatic recognition service and a region based service are used to the highest degree as an advantage of an automatic recognition emergency broadcasting service and a low data transmission rate may be compensated.
Abstract translation: 本发明涉及一种用于提供紧急信息和补充信息的装置和方法。 用于提供紧急信息和补充信息的终端包括用于接收EWAS信号的EWAS处理器，以确定EWC是否包括在EWAS信号中，并解码用于获取紧急信息和补充信息的EWC; 基于区域的服务单元来解码紧急信息和补充信息以获取包括至少一个服务项目的服务信息，并且在服务项上表示项目标签，项目描述，广播链接信息和通信链接信息; 以及终端基站功能单元，其接入Wi-Fi网络或移动通信网络以执行通信或访问T-DMB网络以根据用户的选择来接收广播，并且控制网络浏览环境以通过因特网接入获取附加信息 由移动通信网络或Wi-Fi网络提供。 自动识别服务和基于区域的服务被最大程度地用作自动识别紧急广播服务的优点，并且可以补偿低数据传输速率。
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Patent Agency Ranking
公开(公告)号：KR1020140057154A
公开(公告)日：2014-05-12
申请号：KR1020130124461
申请日：2013-10-18
Applicant: 한국전자통신연구원
IPC: H04H20/59
CPC classification number: H04H20/59 , H04H60/50 , H04H2201/11 , H04H2201/20
Abstract: An apparatus and a method for providing a digital broadcast signal are provided. The apparatus for providing a digital broadcast signal comprises a disaster broadcast unit which detects a first disaster message signal from a terrestrial DMB signal, and generates a second disaster message signal including a disaster broadcast activation data for emergency alert service for a radio shadow area based on a first field value of the first disaster message signal; and a broadcast signal relay unit which controls transmission of the second disaster massage signal transmitted from the disaster broadcast unit.
Abstract translation: 提供了一种用于提供数字广播信号的装置和方法。 用于提供数字广播信号的装置包括灾难广播单元，其从地面DMB信号检测第一灾难信号信号，并且生成第二灾害信号信号，其包括基于无线电阴影区域的紧急警报服务的灾难广播激活数据 第一灾害信号信号的第一场值; 以及广播信号中继单元，其控制从灾害广播单元发送的第二灾害按摩信号的发送。
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公开(公告)号：KR1020140052852A
公开(公告)日：2014-05-07
申请号：KR1020130125233
申请日：2013-10-21
Applicant: 한국전자통신연구원
Abstract: The present invention relates to a broadcasting transmission apparatus. Disclosed in the present specification is the broadcasting transmission apparatus which comprises an ATSC signal generation unit to transmit an ATSC signal in accordance with ATSC transmission standards; a low-speed data signal generation unit which has the same frequency range as that of the ATSC signal, and transmits at least one narrow-band signal located in a null frequency domain of an NTSC removal filter; a coupling unit to couple the ATSC signal to the at least one narrow-band signal; and an RF transmission unit to transmit the signal, coupled by the coupling unit, as an RF signal.
Abstract translation: 广播发送装置技术领域本发明涉及广播发送装置。 在本说明书中公开的广播发送装置包括：ATSC信号生成单元，按照ATSC传输标准发送ATSC信号; 低速数据信号生成单元，其具有与ATSC信号相同的频率范围，并且发送位于NTSC去除滤波器的零频域中的至少一个窄带信号; 耦合单元，用于将所述ATSC信号耦合到所述至少一个窄带信号; 以及RF发送单元，用于将由耦合单元耦合的信号作为RF信号发送。
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公开(公告)号：KR101348618B1
公开(公告)日：2014-01-08
申请号：KR1020100123849
申请日：2010-12-06
Applicant: 한국전자통신연구원
Abstract: OFDM(Orthogonal Frequency Division Multiplexing) 시스템에서 수신채널 특성을 분석하는 수신기를 제공한다. 상기 수신기는 수신채널을 통해 수신된 신호를 기저대역 신호로 다운 컨버팅(down converting)하고, 상기 다운 컨버팅된 신호에 대해 동기(synchronization) 및 고속 푸리에 변환(Fast Fourier Transformation: FFT)을 수행하여 분석대상신호를 출력하는 동기획득부, 및 상기 분석대상신호에 대한 수신기의 필터특성에 의한 제1 오류를 소거(cancellation)하고, 상기 분석대상신호에 대한 역고속 푸리에 변환(Inverse FFT: IFFT)시 주파수상의 보호대역(guard band)내의 널 부반송파(null subcarrier)에 의한 채널임펄스 응답의 제2 오류를 소거하며, 상기 제1 및 제2 오류가 소거된 상기 분석대상신호를 기반으로 상기 수신채널을 분석하는 수신채널 분석부를 포함한다. 수신기 자체의 오류 값을 최대한 줄임으로써 수신 채널의 특성 분석에 대한 신뢰도를 높일 수 있다.
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公开(公告)号：KR1020120062547A
公开(公告)日：2012-06-14
申请号：KR1020100123849
申请日：2010-12-06
Applicant: 한국전자통신연구원
CPC classification number: H04L27/265 , H04J11/00 , H04L27/2655
Abstract: PURPOSE: An apparatus and method for analyzing reception channel properties are provided to enhance reliability for the characteristic analysis of a reception channel by maximally reducing an error value of a receiver oneself. CONSTITUTION: A source coding unit(210) encodes an analog source data like a video signal and an audio signal based on MPEG(Motion Picture Experts Group)-2. A channel coding and interleaving unit(220) performs channel coding and interleaving for correcting errors of encoded source data. A multiplexing unit(230) multiplexes source data of different kinds or data of different channels. A FIC(Fast Information Channel) synchronization unit(240) induces the synchronization of a symbol corresponding to a fast information channel from OFDM(Orthogonal Frequency Division Multiplexing) symbols generated from an OFDM modulator(250). The OFDM modulator maps an inputted data stream to a plurality of subcarriers in a frequency domain. The OFDM modulator generates the OFDM symbols through FFT(Fast Fourier Transform) and IFFT(Inverse FFT) processing.
Abstract translation: 目的：提供用于分析接收信道特性的装置和方法，以通过最大限度地减少接收机自身的误差值来提高接收信道的特性分析的可靠性。 构成：源编码单元（210）基于MPEG（运动图像专家组）-2对诸如视频信号和音频信号的模拟源数据进行编码。 信道编码和交织单元（220）执行用于校正编码源数据的错误的信道编码和交织。 复用单元（230）复用不同种类的源数据或不同信道的数据。 FIC（快速信息信道）同步单元（240）从OFDM调制器（250）生成的OFDM（正交频分复用）符号中引发对应于快速信息信道的符号的同步。 OFDM调制器将输入的数据流映射到频域中的多个子载波。 OFDM调制器通过FFT（快速傅里叶变换）和IFFT（反FFT）处理产生OFDM符号。
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公开(公告)号：KR1020110126345A
公开(公告)日：2011-11-23
申请号：KR1020100045983
申请日：2010-05-17
Applicant: 한국전자통신연구원
CPC classification number: H04H20/59 , H04H20/02 , H04H20/22 , H04H2201/11
Abstract: PURPOSE: A disaster broadcasting providing method, broadcasting apparatus, multiplexer, and multiplexing method are provided to transmit a disaster broadcasting service signal of a specific region to a receiving terminal according to audio sampling frequencies. CONSTITUTION: A disaster message generating unit(100) generates first and second service streams. A first disaster broadcasting multiplexer(300_1) selectively inserts a null stream to the first service stream. The first disaster broadcasting multiplexer multiplexes a first service bit ratio in a first broadcasting channel standard. A second disaster broadcasting multiplexer(300_2) selectively inserts the stream stretched on the second service stream.
Abstract translation: 目的：提供一种灾害广播提供方法，广播装置，多路复用器和多路复用方法，用于根据音频采样频率将特定区域的灾难广播业务信号发送到接收终端。 构成：灾害消息产生单元（100）产生第一和第二服务流。 第一灾难广播多路复用器（300_1）有选择地将空流插入第一服务流。 第一灾难广播多路复用器在第一广播信道标准中复用第一服务比特率。 第二灾难广播多路复用器（300_2）选择性地插入在第二服务流上延伸的流。
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