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公开(公告)号：KR100448220B1
公开(公告)日：2004-09-10
申请号：KR1020020060991
申请日：2002-10-07
Applicant: 한국전자통신연구원
IPC: H04N7/12
CPC classification number: H04N21/23611 , H04N21/23608 , H04N21/23614 , H04N21/4348
Abstract: A null packet insertion apparatus including a null packet remover for removing an irregularly inserted null packet from an externally received video/audio transport stream; a null packet bit rate calculator for calculating a bit rate of the removed null packet; a GUI for determining the transmission period of a periodic null packet to be newly inserted, based on the calculated bit rate, by an external user; a periodic null packet generator; a multiplexer for regularly inserting the periodic null packet preferentially and inserting the video/audio transport stream with the irregular null packet removed, and performing multiplexing; a non-periodic null packet generator; and a PCR corrector.
Abstract translation: 一种空分组插入装置，包括：空分组去除器，用于从外部接收的视频/音频传送流中去除不规则插入的空分组; 空分组比特率计算器，用于计算去除的空分组的比特率; GUI，用于由外部用户基于所计算的比特率来确定要新插入的周期性空分组的传输周期; 一个周期性的空包生成器; 多路复用器，用于优先有规律地插入周期性空分组，并插入移除了不规则空分组的视频/音频传输流，并执行多路复用; 非周期性空分组发生器; 和一个PCR校正器。
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公开(公告)号：KR1020030052819A
公开(公告)日：2003-06-27
申请号：KR1020010082918
申请日：2001-12-21
Applicant: 한국전자통신연구원
IPC: H04N21/439 , H04N19/103
CPC classification number: H04N21/439 , H04N19/103 , H04N21/4345
Abstract: PURPOSE: A decoding apparatus by detecting a digital audio encoding type and a method therefor are provided to decode audio streams regardless of the audio encoding type, thereby reducing system load. CONSTITUTION: A memory unit(15) stores audio decoding programs according to audio encoding types. A demultiplexer(11) demultiplexes a received transport stream for dividing the transport stream into video, audio, and additional information streams. An audio encoding type detector(13) analyzes program specific information based on the additional stream transmitted from the demultiplexer for detecting an encoding type of the audio stream. An audio decoding unit(14) extracts the corresponding audio decoding program from the memory unit according to the audio encoding type information for decoding the audio stream based on the audio decoding program. A video decoding unit(12) decodes the video stream through the MPEG(Moving Picture Expert Group) method.
Abstract translation: 目的：提供一种通过检测数字音频编码类型的解码装置及其方法，以解码音频流，而不管音频编码类型如何，从而减少系统负载。 构成：存储单元（15）根据音频编码类型存储音频解码程序。 解复用器（11）对接收到的传输流进行解复用，以将传输流分成视频，音频和附加信息流。 音频编码类型检测器（13）基于从解复用器发送的用于检测音频流的编码类型的附加流来分析节目特定信息。 音频解码单元（14）根据用于基于音频解码程序解码音频流的音频编码类型信息从存储器单元中提取相应的音频解码程序。 视频解码单元（12）通过MPEG（运动图像专家组）方法解码视频流。
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公开(公告)号：KR1020030049708A
公开(公告)日：2003-06-25
申请号：KR1020010080007
申请日：2001-12-17
Applicant: 한국전자통신연구원
IPC: H04N7/10
CPC classification number: H04N7/1675 , H04N21/4344 , H04N21/44055
Abstract: PURPOSE: An apparatus and a method for processing transport stream in a digital cable broadcasting system and a delay control apparatus therefor are provided to delay all input data for a predetermined time regardless of scrambling. CONSTITUTION: A demultiplexer(100) receives transport streams for dividing the transport streams into scrambled data signals and non-scrambled data signals. A descrambler control unit(200) receives the scrambled data signals from the demultiplexer for descrambling the scrambled data signals. A delay control unit(400) receives the non-scrambled data signals from the demultiplexer and the descrambled data signals from the descrambler control unit for delaying the data signals for a predetermined time before outputting the data signals. A remultiplexer(300) receives the data signals from the delay control unit for multiplexing the data signals and outputting transport stream.
Abstract translation: 目的：提供一种用于处理数字有线广播系统中的传输流的装置和方法及其延迟控制装置，用于将所有输入数据延迟预定时间，而不管加扰。 构成：多路分解器（100）接收用于将传输流划分为加扰数据信号和非加扰数据信号的传输流。 解扰器控制单元（200）从解复用器接收加扰的数据信号，以对加扰的数据信号进行解扰。 延迟控制单元（400）从解复用器控制单元接收来自解复用器的未加密数据信号和解扰数据信号，用于在输出数据信号之前将数据信号延迟预定时间。 再分配器（300）从延迟控制单元接收数据信号，用于多路复用数据信号并输出传输流。
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公开(公告)号：KR101994634B1
公开(公告)日：2019-09-30
申请号：KR1020150161550
申请日：2015-11-18
Applicant: 한국전자통신연구원
IPC: H04N21/232 , H04N21/262 , H04N21/43 , H04N21/2362
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Patent Agency Ranking
公开(公告)号：KR101916022B1
公开(公告)日：2018-11-07
申请号：KR1020150140339
申请日：2015-10-06
Applicant: 한국전자통신연구원
IPC: H04N21/2365 , H04N21/234 , H04N21/84
CPC classification number: H04L65/601 , H04L65/4076 , H04L67/02 , H04L67/06
Abstract: 본발명은제한된용량의콘텐츠를반복재생하여도연속적으로재생되는것처럼보이도록하고실제방송환경과동일한테스트환경을제공하기위하여, 세그먼트기반방송콘텐츠를반복전송함으로써, 차세대방송서비스및 시스템의개발을용이하게할 수있는, 방송콘텐츠전송방법및 장치에관한것이다.
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公开(公告)号：KR101694976B1
公开(公告)日：2017-01-10
申请号：KR1020120091405
申请日：2012-08-21
Applicant: 한국전자통신연구원
IPC: H04N21/266 , H04N7/167 , H04N21/236 , H04N21/435 , H04N21/4623
CPC classification number: H04N21/23611 , H04N21/26606
Abstract: 본발명은 DMB 시스템에서방송서비스에대한제한수신(conditional access)를지시하기위하여제한수신메시지를효과적으로전송하기위한방법및 장치에관한것으로, 제한수신을지원하는지상파 DMB 송신시스템에있어서 DMB 서비스의수신권한에관련된 ECM(Entitlement Control Message)의전송주기및 양에대한정보를생성하는 CAS(Conditional Access System) 서버, 상기 ECM의전송주기및 양에대한정보를기반으로상기 ECM의전송을위해필요한스트림(stream)의개수를계산하는 DMB 비디오스크램블러, 및상기계산된스트림의개수만큼널 패킷(null packet)을생성하는 DMB 비디오부호화기를포함하되, 상기 DMB 비디오스크램블러는, 상기널 패킷을위해전송스트림(transport stream) 내에마련된페이로드(payload)에상기 ECM을삽입하여 ECM 패킷을생성함을특징으로한다.
Abstract translation: 该系统具有条件访问系统（120），用于相对于数字多媒体广播（DMB）服务的访问权限生成传送周期和授权控制消息量（ECM）。 DMB视频加扰器（130）基于传送周期来计算要发送ECM的流的必要数量。 DMB视频编码器（110）产生与数据流一样多的空分组，其中DMB视频加密器通过插入针对空分组的传输流中提供的ECM有效载荷来生成ECM分组。 还包括用于接收支持条件访问的数字地面广播多媒体的终端的独立权利要求。
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公开(公告)号：KR1020160041833A
公开(公告)日：2016-04-18
申请号：KR1020150141811
申请日：2015-10-08
Applicant: 한국전자통신연구원
IPC: H04N21/23 , H04N21/2381 , H04N21/258 , H04N21/2343
Abstract: 방송망을통해수신된방송신호에서시그널링정보를획득하는단계, 시그널링정보를바탕으로하이브리드방송서비스에관한정보를획득하는단계, 그리고하이브리드방송서비스에관한정보를바탕으로통신망을통해수신될부가컴포넌트가존재하는지결정하는단계를통해방송서비스를제공하는방법및 장치가제공된다.
Abstract translation: 通过以下步骤提供广播服务提供方法及其装置：从通过广播网络接收的广播信号获取信令信息; 基于所述信令信息获取关于混合广播服务的信息; 以及确定是否存在附加组件，其中所述附加组件将基于关于所述混合广播服务的信息通过通信网络接收。 因此，该方法可以根据广播服务的提供条件，内容的特征，传输网络的状况等来动态地配置和提供广播内容。
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公开(公告)号：KR1020150058650A
公开(公告)日：2015-05-29
申请号：KR1020130140621
申请日：2013-11-19
Applicant: 한국전자통신연구원
IPC: H04N21/235 , H04N21/2343 , H04N21/262
CPC classification number: H04N21/43 , H04N21/231
Abstract: 부가정보서비스를지원하는방송송신장치및 방송수신장치가개시된다. 부가정보서비스를지원하는방송송신장치는방송프로그램을방송망을통해, 방송수신장치로제공하는방송프로그램전송부와, 상기방송프로그램과연관된부가정보콘텐츠를생성하고, 상기방송프로그램에서상기부가정보콘텐츠와연관된시간정보를추출하며, 상기추출된시간정보에대응하여상기부가정보콘텐츠를데이터베이스에저장하는부가정보생성부와, 상기방송수신장치로부터의부가정보시간리스트요청에연동하여, 상기추출된시간정보에대한시간리스트를통신망을통해, 상기방송수신장치로제공하는부가정보전송부를포함하고, 상기부가정보전송부는상기방송수신장치로부터의상기시간리스트에기초한부가정보콘텐츠요청에따라, 상기부가정보콘텐츠요청으로부터시간정보를검출하고, 상기데이터베이스로부터상기검출된시간정보에대응하는부가정보콘텐츠를검색하여, 상기통신망을통해, 상기방송수신장치에제공한다.
Abstract translation: 公开了一种用于提供附加信息服务的广播发送装置和广播接收装置。 广播发送装置包括：广播节目发送单元，其通过广播网络向广播接收装置提供广播节目; 生成与广播节目相关的附加信息内容的附加信息生成单元，从广播节目中提取与附加信息内容相关的时间信息，并将附加信息内容存储在数据库中以对应于所提取的时间信息; 以及附加信息发送单元，其与来自广播接收装置的附加信息时间表请求相互作用，并将提取的时间信息的提取时间列表提供给广播接收装置。 附加信息发送单元从附加信息内容请求中提取时间信息，搜索与从数据库中提取的时间信息对应的附加信息内容，并通过网络向广播接收装置提供附加信息内容。
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公开(公告)号：KR1020140147651A
公开(公告)日：2014-12-30
申请号：KR1020130147570
申请日：2013-11-29
Applicant: 한국전자통신연구원
IPC: H04N21/235 , H04N21/435
CPC classification number: H04N21/435 , H04H2201/11 , H04N21/235
Abstract: Disclosed is a signaling method for a hybrid digital multimedia broadcasting service. The method includes the steps of: defining a data service component type in user application information; defining a user application type in the user application information; inputting information of a hybrid-DMB service into the user application information as a main object type identifier; additionally allocating a reserved field to a field value that is assigned to the main object type identifier; adding a hybrid-DMB service type identifier to the reserved field; and sending the user application information to a receiving terminal.
Abstract translation: 公开了一种用于混合数字多媒体广播业务的信令方法。 该方法包括以下步骤：在用户应用信息中定义数据服务组件类型; 在所述用户应用信息中定义用户应用类型; 将混合DMB服务的信息输入到用户应用信息中作为主要对象类型标识符; 另外将保留字段分配给分配给主对象类型标识符的字段值; 向保留字段添加混合DMB服务类型标识符; 并将所述用户应用信息发送到接收终端。
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