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51.发明公开계층 변조 서비스를 제공하는 디엠비 시스템, 디엠비 시스템에서 앙상블 전송 인터페이스를 이용한 계층 변조 설정 방법 및 장치 无效使用数字多媒体广播网络中的可靠传输接口和AT-DMB系统配置分层调制的方法和装置
公开(公告)号：KR1020120013189A
公开(公告)日：2012-02-14
申请号：KR1020110064244
申请日：2011-06-30
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04H60/07
Abstract: PURPOSE: A hierarchical modulation setting apparatus and a method thereof are provided to set up the hierarchical modulation of a DMB transmitter through the output ETI of a multiplexer in a configuration of a transmission network for AT-DMB. CONSTITUTION: A signaling message generating unit(311) generates a signaling message including layer modulation setup information. A frame configuration unit(313) configures an ETI frame including the signaling message based on ETI(Ensemble Transport Interface) standards. A transmitting unit(315) transmits the ETI frame to a DMB transmitter through ETI network according to the ETI standard.
Abstract translation: 目的：提供一种分层调制设置装置及其方法，用于通过AT-DMB传输网络的配置中的多路复用器的输出ETI来建立DMB发射机的分层调制。 构成：信令消息生成单元（311）生成包括层调制设置信息的信令消息。 帧配置单元（313）根据ETI（集合传输接口）标准配置包括信令消息的ETI帧。 发送单元（315）根据ETI标准通过ETI网络将ETI帧发送到DMB发射机。
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公开(公告)号：KR1020100120610A
公开(公告)日：2010-11-16
申请号：KR1020090074456
申请日：2009-08-12
Applicant: 한국전자통신연구원
IPC: H04N21/2668 , H04N21/433 , H04N21/81 , H04N21/233 , H04N21/234
CPC classification number: H04N21/2668 , H04N21/233 , H04N21/234 , H04N21/4331 , H04N21/812
Abstract: PURPOSE: A method and a device for transmitting an advertisement service, and a method and a device for receiving an advertisement service are provided to supply an advertisement service while a viewer waits for a broadcast service, thereby increasing time efficiency. CONSTITUTION: An advertisement broadcast server transfers advertisement content(S210). An audio encoding unit inserts the advertisement content to an audio service stream(S220). A video encoding unit inserts the advertisement content into a video service stream(S230). A data broadcast server inserts the advertisement content into a data service stream(S240). A multiplexer multiplexes the streams(S250). A modulator generates and transmits a mobile broadcast signal by modulating a transmission frame(S260,S270).
Abstract translation: 目的：提供一种用于发送广告服务的方法和装置，以及用于接收广告服务的方法和装置，以在观众等待广播服务的同时提供广告服务，从而提高时间效率。 规定：广告广播服务器传送广告内容（S210）。 音频编码单元将广告内容插入音频服务流（S220）。 视频编码单元将广告内容插入到视频服务流中（S230）。 数据广播服务器将广告内容插入到数据服务流中（S240）。 多路复用器多路复用数据流（S250）。 调制器通过调制发送帧产生并发送移动广播信号（S260，S270）。
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公开(公告)号：KR1020100043983A
公开(公告)日：2010-04-29
申请号：KR1020080103260
申请日：2008-10-21
Applicant: 한국전자통신연구원
IPC: H04N21/235
CPC classification number: H04N21/4384 , H04H2201/11 , H04N21/435 , H04N21/4385
Abstract: PURPOSE: A device and a method of inserting information into a fast information channel are provided to easily add additional information to a fast information channel without changing a service. CONSTITUTION: A decoding unit(410) extracts the first fast information channel data from a transmission frame. An FIC modifier(420) performs re-multiplexing based on information to which data fields will be inserted for at least one block. The FIC modifier reconfigures the blocks to generate the second FIC data. An encoding unit(430) replaces the first FIC data with the second FIC data.
Abstract translation: 目的：提供一种将信息插入快速信息通道的设备和方法，以便在不改变服务的情况下轻松地向快速信息通道添加附加信息。 构成：解码单元（410）从传输帧提取第一快速信息信道数据。 FIC修改器（420）基于将为至少一个块插入数据字段的信息执行重新复用。 FIC修饰符重新配置块以生成第二个FIC数据。 编码单元（430）用第二FIC数据替换第一FIC数据。
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公开(公告)号：KR1020100021381A
公开(公告)日：2010-02-24
申请号：KR1020090075191
申请日：2009-08-14
Applicant: 한국전자통신연구원
Inventor： 임종수 , 이지봉 , 윤정일 , 배병준 , 김광용 , 양규태 , 최서미 , 김영수 , 배재휘 , 이수인 , 황승구 , 안치득 , 구본태 , 김진규 , 김혁 , 이광순
CPC classification number: H04N21/631 , H03M13/35 , H04N21/2383 , H04N21/4382 , H04N21/64792
Abstract: PURPOSE: An apparatus for transmitting and receiving digital multimedia broadcasting and a method thereof are provided to change the modulation system of the enhancement layer stream according to the broadcasting environment. CONSTITUTION: The base layer processing unit(103) outputs the base layer stream. The enhancement layer processing unit(104) outputs the enhancement layer stream. The transmission unit(105) modulates the enhancement layer stream among the first and second layer modulation mode based on one layer modulation mode. The transmission unit is proceed the mapping of the symbol of the enhancement layer stream based on the symbol location of the base layer stream. The transmission unit is created the transfer frame. The different modulation system is used to the first and second layer modulation mode.
Abstract translation: 目的：提供一种用于发送和接收数字多媒体广播的装置及其方法，以根据广播环境改变增强层流的调制系统。 构成：基层处理单元（103）输出基层流。 增强层处理单元（104）输出增强层流。 传输单元（105）基于一层调制模式在第一和第二层调制模式之间调制增强层流。 发送单元基于基本层流的符号位置进行增强层流的符号的映射。 传输单元被创建为传送框架。 不同的调制方式用于第一和第二层调制方式。
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公开(公告)号：KR100923574B1
公开(公告)日：2009-10-27
申请号：KR1020070078965
申请日：2007-08-07
Applicant: 한국전자통신연구원
CPC classification number: H04N21/234318 , H04N21/2362 , H04N21/242 , H04N21/4307 , H04N21/6112 , H04N21/64315 , H04N21/8547
Abstract: 제1 네트워크와 제2 네트워크의 ETI(Ensemble Transport Interface) 신호의 동기화를 수행하기 위해서, 동기화 장치는 제1 네트워크로부터 제1 ETI 신호를 수신하고, 제2 네트워크로부터 제2 ETI 신호를 수신하고, 제1 ETI 신호의 프레임과 제2 ETI 신호의 프레임을 비교하여 동일 프레임 간의 지연 시간을 생성하고, 지연 시간에 따라 제1 ETI 신호와 제2 ETI 신호를 동기화한다.
DMB, ETI, 방송 송출-
Patent Agency Ranking
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
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。
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公开(公告)号：KR1020080052210A
公开(公告)日：2008-06-11
申请号：KR1020070051457
申请日：2007-05-28
Applicant: 한국전자통신연구원
CPC classification number: H04N7/08 , H04H20/65 , H04H20/93 , H04H2201/11
Abstract: A method for providing and extracting link information by using an FIC(Fast Information Channel) is provided to offer and extract the link information such as a URL(Uniform Resource Locator) and a phone number without an additional device in a terrestrial DMB(Digital Multimedia Broadcasting) system. An ensemble multiplexer assigns a link flag to a link flag region(600). The ensemble multiplexer sets a link type in a link type region(602). The ensemble multiplexer inserts link information into a character region(604). The ensemble multiplexer compares the currently inserted link information with previously inserted link information and judges whether the link information is changed(606). If the link information is changed, the ensemble multiplexer changes a link version number of a version number region(608). If the link information is not changed, the ensemble multiplexer inserts a current part number of the currently inserted link information into a current part number region, and inserts the last part number of the currently inserted link information into the last part number region(610).
Abstract translation: 提供一种通过使用FIC（快速信息频道）提供和提取链接信息的方法，以提供和提取诸如URL（统一资源定位符）和电话号码之类的链接信息，而无需附加设备在地面DMB（数字多媒体 广播）系统。 综合多路复用器将链路标志分配给链路标志区域（600）。 综合多路复用器在链路类型区域中设置链路类型（602）。 综合多路复用器将链接信息插入字符区域（604）。 综合多路复用器将当前插入的链接信息与先前插入的链接信息进行比较，并判断链接信息是否改变（606）。 如果链接信息被改变，则集成多路复用器改变版本号区域的链接版本号（608）。 如果链接信息没有改变，则集成多路复用器将当前插入的链接信息的当前部分号插入到当前部件号区域中，并将当前插入的链接信息的最后部分号插入到最后的部件号区域（610） 。
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公开(公告)号：KR100826669B1
公开(公告)日：2008-05-02
申请号：KR1020060094380
申请日：2006-09-27
Applicant: 한국전자통신연구원
IPC: H04N7/12
CPC classification number: H04H60/82 , H04H20/24 , H04H60/07 , H04L65/103 , H04L65/605 , H04L65/608 , H04N21/23608 , H04N21/2381 , H04N21/2389 , H04N21/6131 , H04N21/64322 , H04N21/6437 , H04N21/64707
Abstract: 1. 청구범위에 기재된 발명이 속하는 기술분야
본 발명은 지상파 DMB 콘텐츠 변환 방법 및 게이트웨이와 지상파 DMB 송신 시스템 및 방법에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 다양한 통신망의 특성 및 지상파 DMB 콘텐츠의 구성을 고려하여 지상파 DMB 콘텐츠를 변환함으로써 지상파 DMB 전용망 뿐 아니라 다양한 통신망을 통하여 효율적으로 지상파 DMB 서비스를 제공할 수 있는 지상파 DMB 콘텐츠 변환 방법 및 게이트웨이를 제공하는데 목적이 있음.
3. 발명의 해결방법의 요지
본 발명은, 지상파 DMB 콘텐츠 변환 게이트웨이에 있어서, ETI(Ensemble Transport Interface) 프레임 포맷의 지상파 DMB 콘텐츠를 FIC(Fast Information Channel) 및 MSC(Main Service Channel)로 분리하는 ETI 역다중화수단; 상기 FIC를 SDP(Session Discription Protocol) 패킷으로 구성하는 SDP 패킷 처리수단; 상기 SDP 패킷을 TCP/IP(Transmission Control Protocol/Internet Protocol) 패킷으로 구성하는 TCP/IP 구성수단; 상기 MSC를 RTP(Real-time Transport Protocol) 패킷으로 구성하는 RTP 패킷 처리수단; 상기 RTP 패킷을 UDP/IP(User Datagram Protocol/Internet Protocol) 패킷으로 구성하는 UDP/IP 구성수단; 및 상기 TCP/IP 패킷 및 상기 UDP/IP 패킷을 IP망으로 전송하는 IP 출력수단을 포함하되, 상기 RTP 패킷처리수단은, 상기 MSC를 역다중화하여 DAB 오디오, DAB 데이터 및 멀티미디어 스트림을 출력하는 MSC 역다중화부; 상기 멀티미디어 스트림을 외복호화하는 외복호화부; 및 상기 MSC 역다중화부로부터 출력된 DAB 오디오 및 DAB 데이터 스트림과 상기 외복호화부로부터 출력된 멀티미디어 스트림을 RTP 패킷으로 구성하는 RTP 패킷처리부를 포함한다.
4. 발명의 중요한 용도
본 발명은 지상파 DMB 서비스 등에 이용됨.
지상파 DMB, FIC(Fast Information Channel), MSC(Main Service Channel)-
公开(公告)号：KR1020070061227A
公开(公告)日：2007-06-13
申请号：KR1020060069959
申请日：2006-07-25
Applicant: 한국전자통신연구원
CPC classification number: H04N13/161 , H04H20/30 , H04H20/95 , H04N13/194 , H04N19/597 , H04N21/235 , H04N21/23614 , H04N21/2362 , H04N21/2365 , H04N21/4347 , H04N21/4348 , H04N21/435 , H04N21/845
Abstract: A system and a method for transmitting and receiving 3-dimensional images based on digital broadcasting are provided to transmit 3-dimensional additional information as a robust stream to secure backward compatibility with the existing 2-dimensional digital broadcasting systems and easily construct 3-dimensional broadcasting systems. A system for transmitting 3-dimensional images includes an encoder(11) for respectively encoding a 2-dimensional image and 3-dimensional additional information to generate a 2-dimensional image ES(Elementary Stream) and a 3-dimensional additional information ES, a packetizer(12) for respectively packetizing the 2-dimensional image ES and the 3-dimensional additional information ES, and a PSI(Program Specific Information) generator(13) for generating PSI representing that the 3-dimensional additional information is transmitted as a robust stream. The system further includes a TS(Transport Stream) generator(14) for generating TSs for the packetized 2-dimensional image ES and 3-dimensional additional information ES and the PSI, a multiplexer(15) for multiplexing the TSs such that a 2-dimensional image TS is transmitted as a normal stream, and a 3-dimensional additional information TS, a PSI TS, and a synchronization information TS for 3-dimensional image synthesis are transmitted as robust streams, and a modulator(16) for modulating and transmitting the multiplexed TSs according to digital television protocol.
Abstract translation: 提供了一种用于发送和接收基于数字广播的三维图像的系统和方法，用于传输三维附加信息作为鲁棒流，以确保与现有二维数字广播系统的向后兼容性，并可轻松构建三维广播 系统。 用于发送三维图像的系统包括用于分别编码二维图像和三维附加信息的编码器（11），以生成二维图像ES（基本流）和三维附加信息ES， 用于分别打包二维图像ES和三维附加信息ES的分组化器（12）以及用于生成表示将三维附加信息作为鲁棒的PSI（节目专用信息）生成器（13）发送的PSI 流。 该系统还包括用于产生用于分组化的二维图像ES和三维附加信息ES和PSI的TS的TS（传输流）生成器（14），用于复用TS的多路复用器（15），使得2- 三维图像TS作为普通流发送，作为稳健流发送3维附加信息TS，PSI TS和用于3维图像合成的同步信息TS，以及用于调制和发送的调制器（16） 根据数字电视协议的多路复用TS。
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