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公开(公告)号：KR1020120066913A
公开(公告)日：2012-06-25
申请号：KR1020100128267
申请日：2010-12-15
Applicant: 한국전자통신연구원
IPC: H04N21/43 , H04N21/8547
CPC classification number: H04H20/33 , H04H20/18 , H04N21/234327 , H04N21/236 , H04N21/23611 , H04N21/23614 , H04N21/242 , H04N21/4307 , H04N21/434
Abstract: PURPOSE: An apparatus and a method for synchronizing a plurality of transport streams are provided to prevent overflow and underflow of transport streams in a digital broadcasting system. CONSTITUTION: A basic layer processing unit(101) generates a basic layer transport stream. An additional layer processing unit(102) generates a dummy packet which does not have effective data. A system synchronizing unit(103) generates first program clock reference information and second PCR information for the dummy packet based on one system time clock.
Abstract translation: 目的：提供一种用于同步多个传输流的装置和方法，以防止数字广播系统中的传输流的溢出和下溢。 构成：基本层处理单元（101）生成基本层传输流。 附加层处理单元（102）生成不具有有效数据的虚拟分组。 系统同步单元（103）基于一个系统时钟产生第一程序时钟参考信息和用于虚拟分组的第二PCR信息。
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公开(公告)号：KR1020120017402A
公开(公告)日：2012-02-28
申请号：KR1020110079580
申请日：2011-08-10
Applicant: 한국전자통신연구원
CPC classification number: H04N13/161 , H04H60/59 , H04N13/106 , H04N13/194 , H04N13/271 , H04N2013/0074
Abstract: PURPOSE: A broadcast service monitoring device in a digital broadcast system and a method thereof are provided to supply convenience in operating a digital broadcast system when a 3D broadcast service is provided. CONSTITUTION: A 2D image decoding unit(150) decodes a stream for a separated 3D video service to a fixed image. An image separating unit(160) separates one screen into two screens to generate two images. A 3D image reproducing unit(190) reproduces the images. A depth information extracting unit(170) extracts depth information for a 3D video service from the images. A 3D information expressing unit(180) expresses detailed service related information, analyzed values of a 3D video service, and the extracted depth information.
Abstract translation: 目的：提供数字广播系统中的广播服务监控设备及其方法，以便在提供3D广播服务时为操作数字广播系统提供方便。 构成：2D图像解码单元（150）将用于分离的3D视频服务的流解码为固定图像。 图像分离单元（160）将一个屏幕分成两个屏幕以产生两个图像。 3D图像再现单元（190）再现图像。 深度信息提取单元从图像中提取3D视频服务的深度信息。 3D信息表达单元（180）表示详细的服务相关信息，3D视频服务的分析值和所提取的深度信息。
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公开(公告)号：KR101112206B1
公开(公告)日：2012-02-24
申请号：KR1020080131509
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04H20/72 , H04H20/06 , H04H20/28 , H04H20/42 , H04H20/61 , H04H40/27 , H04H2201/11 , H04L27/183 , H04L27/3488 , H04N21/2383
Abstract: 본 발명은 디지털 멀티미디어 시스템에서의 지역 방송 제공 방법 및 그 장치에 관한 것이다.
본 발명에서는 주 방송 시스템으로부터 생성되어 방송되는 제1 전송 스트림를 수신하고 이로부터 주 방송 스트림들을 추출하고, 지역 방송 서비스를 위한 데이터들에 대응하는 지역 방송 스트림들을 제공받는다. 주 방송 스트림들과 지역 방송 스트림들을 각각 다중화하여 설정 규격을 가지는 제1 계층 신호 및 제2 계층 신호를 각각 생성한다. 특히 제1 계층 신호는 지역 방송 서비스를 위한 데이터가 있음을 알리는 지역 방송 알림 정보가 삽입되어 있다. 이러한 제1 및 제2 계층 신호는 변조되어 전송되며, 특히 제1 전송 스트림과는 다른 주파수 대역을 통하여 전송된다.
DMB, 지역방송, 기본계층, 강화계층, ETI-
公开(公告)号：KR1020120007462A
公开(公告)日：2012-01-20
申请号：KR1020110069564
申请日：2011-07-13
Applicant: 한국전자통신연구원
CPC classification number: H04N21/234327 , H04N13/161 , H04N13/194 , H04N7/0806 , H04N13/271
Abstract: PURPOSE: A method of providing and consuming a 3D broadcasting service by using a digital multimedia broadcasting system and an apparatus thereof are provided to offer a new 3D broadcasting service which is compatible with a traditional Terrestrial-DMB. CONSTITUTION: A 3D broadcasting providing apparatus generates audio signals, 2D video signals, and a base layer stream by multiplexing data signals(904). The apparatus generates the audio signals, 3D video signals, the data signals, and an enhancement layer stream by multiplexing 3D additional data signals(906). The apparatus generates 3D broadcasting signals by modulating the base layer stream and the enhancement layer stream(908).
Abstract translation: 目的：提供一种通过使用数字多媒体广播系统及其装置提供和消费3D广播服务的方法，以提供与传统的地面DMB兼容的新的3D广播服务。 构成：3D广播提供装置通过复用数据信号来生成音频信号，2D视频信号和基本层流（904）。 该设备通过复用3D附加数据信号（906）来生成音频信号，3D视频信号，数据信号和增强层流。 该装置通过调制基本层流和增强层流来产生3D广播信号（908）。
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公开(公告)号：KR1020110016302A
公开(公告)日：2011-02-17
申请号：KR1020090073943
申请日：2009-08-11
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04N21/434 , H04H20/426 , H04H2201/20 , H04N21/2383 , H04N21/42615 , H04N21/4382
Abstract: PURPOSE: A broadcasting signal receiving device and a method thereof are provided to receive both T-DMB(Terrestrial-Digital Multimedia Broadcasting), and AT-DMB(Advanced Terrestrial Digital Multimedia Broadcasting) signal without using an additional receiving device. CONSTITUTION: A demodulation unit(102) demodulates broadcasting signal at one of the broadcast signal receiving mode between T-DMB(Terrestrial-Digital Multimedia Broadcasting) mode and AT-DMB(Advanced Terrestrial Digital Multimedia Broadcasting) modes. A receiving mode selection unit(114) selects the demodulation mode. The receiving mode selecting unit selects a signal receiving mode among the T-DMB mode or a plurality of AT-DMB modes through an error inspection about a high-speed information channel data.
Abstract translation: 目的：提供一种广播信号接收装置及其方法，用于在不使用附加接收装置的情况下接收T-DMB（地面数字多媒体广播）和AT-DMB（高级地面数字多媒体广播）信号。 构成：解调单元（102）以T-DMB（地面数字多媒体广播）模式和AT-DMB（高级地面数字多媒体广播）模式之间的广播信号接收模式之一解调广播信号。 接收模式选择单元（114）选择解调模式。 接收模式选择单元通过关于高速信息信道数据的错误检查来选择T-DMB模式或多个AT-DMB模式中的信号接收模式。
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Patent Agency Ranking156.发明公开
公开(公告)号：KR1020100089784A
公开(公告)日：2010-08-12
申请号：KR1020100009848
申请日：2010-02-03
Applicant: 한국전자통신연구원
CPC classification number: H04N21/2368 , H04N21/234327 , H04N21/2362 , H04N21/2365 , H04N21/4345 , H04N21/631
Abstract: PURPOSE: A method of transmitting a signal, a device of transmitting a signal, a method of receiving a signal and a device of receiving a signal for a DMB(Digital Multimedia Broadcasting) service are provided to conveniently maintain the compatibility between DMB services which respectively use a single layer and multiple layers by signaling the connectivity among streams in a DMB service. CONSTITUTION: An SL(Sync Layer) packetizer(140) creates each SL packet through the reception of an improved layer elementary stream and a base layer elementary stream. A PES(Packetized Elementary Stream) packet device(160) converts the each SL packet into a PES. A first TS(Transport Stream) multiplexer(170) outputs a base layer transport stream through the multiplexing of the PES packet. A second TS multiplexer(171) outputs an improved layer TS through the multiplexing of the PES packet.
Abstract translation: 目的：提供发送信号的方法，发送信号的装置，接收信号的方法和接收DMB（数字多媒体广播）业务的信号的装置，以方便地维护分别在DMB业务之间的兼容性 通过信令DMB服务中的流之间的连接来使用单层和多层。 构成：SL（同步层）分组器（140）通过接收改进的层基本流和基本层基本流来创建每个SL分组。 PES（分组化基本流）分组设备（160）将每个SL分组转换成PES。 第一TS（传输流）复用器（170）通过PES分组的复用来输出基本层传输流。 第二TS多路复用器（171）通过PES分组的复用来输出改进的层TS。
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公开(公告)号：KR100964382B1
公开(公告)日：2010-06-17
申请号：KR1020080067448
申请日：2008-07-11
Applicant: 한국전자통신연구원
CPC classification number: H04L23/02 , H04H20/95 , H04L5/0016 , H04L5/0048 , H04L25/0226
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公开(公告)号：KR1020100039117A
公开(公告)日：2010-04-15
申请号：KR1020080098343
申请日：2008-10-07
Applicant: 한국전자통신연구원
IPC: H04N21/266 , H04N21/462
CPC classification number: H04N7/1675 , H04H60/07 , H04H60/14 , H04L65/4076 , H04L65/602 , H04N21/234327 , H04N21/23897 , H04N21/26606 , H04N21/41407 , H04N21/4382 , H04N21/6131 , H04N21/64315 , H04N21/64792
Abstract: PURPOSE: A transmission and reception method and a transmission and reception apparatus providing a conditional access broadcasting service is provided to offer the conditional access broadcasting service for a pay-TV service. CONSTITUTION: A transmission and reception apparatus comprises the following: an encoder(110) encoding data from a conditional access subscriber to form a control word for scrambling, and converting the data into a condition control and management message; a first multiplexer(140) forming a final stream by multiplexing a basic section stream and the condition control and management message; a second multiplexer(150) multiplexing the final stream and a reinforced section stream; and a modulator(160) modulating the result from the second multiplexer.
Abstract translation: 目的：提供一种发送和接收方法以及提供条件接收广播业务的发送和接收设备，为付费电视服务提供条件接收广播服务。 构成：发送接收装置包括：编码器（110），对来自条件接入用户的数据进行编码，形成用于加扰的控制字，并将该数据转换为条件控制和管理消息; 第一多路复用器（140），通过复用基本部分流和条件控制和管理消息来形成最终流; 多路复用最终流和加强段流的第二多路复用器（150）; 以及调制器（160），调制来自第二多路复用器的结果。
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公开(公告)号：KR1020090122096A
公开(公告)日：2009-11-26
申请号：KR1020080067448
申请日：2008-07-11
Applicant: 한국전자통신연구원
CPC classification number: H04L23/02 , H04H20/95 , H04L5/0016 , H04L5/0048 , H04L25/0226
Abstract: PURPOSE: A transmitting/receiving method and device for a digital multimedia broadcasting is provided to offer high quality service in high speed movement by applying the OFDM-CDMA transmission technique to the digital multimedia broadcasting system. CONSTITUTION: The pilot signal is generated by mapping the transferred information with the orthogonal code(S610). The pilot signal is diffused to the frequency domain(S630). The expanded pilot signal is modulated and transmitted. The transferred information comprises the transmission parameter for demodulating the received signal by the receiving device. The pilot signal is reiterated and inserted in a plurality of subcarriers.
Abstract translation: 目的：提供一种用于数字多媒体广播的发送/接收方法和装置，通过将OFDM-CDMA传输技术应用于数字多媒体广播系统来提供高速移动中的高质量服务。 构成：通过用正交码映射传送的信息来生成导频信号（S610）。 导频信号扩散到频域（S630）。 扩展的导频信号被调制和传输。 所传输的信息包括用于由接收装置解调接收到的信号的传输参数。 导频信号被重复并插入到多个子载波中。
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公开(公告)号：KR1020090014767A
公开(公告)日：2009-02-11
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: A DMB(Digital Multimedia Broadcasting) broadcasting system and method are provided to synchronize the ETI stream of different networks of the DMB broadcasting system, thereby providing stable broadcasting reception to DMB receivers. A first ETI(Ensemble Transport Interface) signal is received from a first network. A second ETI signal is received from a second network. The same frame is searched by comparing the first ETI signal with the second ETI signal. The difference of delay time between the same frames is determined. According to the difference of the delay time, the first ETI signal and the second ETI signal are synchronized. A process of checking an error for the first ETI signal is performed. A process of checking an error for the second ETI signal is performed.
Abstract translation: 提供了DMB（数字多媒体广播）广播系统和方法来同步DMB广播系统的不同网络的ETI流，从而向DMB接收机提供稳定的广播接收。 从第一网络接收第一ETI（集合传输接口）信号。 从第二网络接收第二ETI信号。 通过将第一ETI信号与第二ETI信号进行比较来搜索相同的帧。 确定相同帧之间的延迟时间差。 根据延迟时间的差异，第一ETI信号和第二ETI信号同步。 执行检查第一ETI信号的错误的处理。 执行检查第二ETI信号的错误的处理。
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