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    • 13. 发明申请
    • APPARATUS AND METHOD FOR TRANSMITTING PACKET AND APPARATUS AND METHOD FOR RECEIVING PACKET IN MMT SYSTEM
    • 用于发送分组的分组装置和方法以及用于在MMT系统中接收分组的方法
    • WO2013009131A2
    • 2013-01-17
    • PCT/KR2012005584
    • 2012-07-13
    • KOREA ELECTRONICS TELECOMMLEE JIN YOUNGSEO KWANG DEOKYUN KUG JINCHEONG WON SIKHUR NAM HO
    • LEE JIN YOUNGSEO KWANG DEOKYUN KUG JINCHEONG WON SIKHUR NAM HO
    • H04L7/00H04N7/24
    • H04N21/2381H04N21/242H04N21/4302H04N21/4305H04N21/438H04N21/64322
    • The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet, based on a timing model of an MPEG media transport (MMT) system, which is integrated by considering the advantages of a timing model in an MPEG-2 system and an RTP timing model. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises: a video stream that is encoded based on an input picture; and an MMT packetizing portion for generating the MMT packet by packetizing an audio stream that corresponds to the video stream, wherein the MMT packetizing portion generates the MMT packet by including synchronization information, which is generated based on a system time clock (STC) that is a master program clock for a video and audio encoder, and an MMT buffering delay. As a result, synchronization of various media sources, measurement of a packet arrival jitter, as well as STC clock locking of the apparatus for transmitting and the apparatus for receiving the MMT can be achieved.
    • 本发明公开了一种基于MPEG媒体传输(MMT)系统的时序模型的用于传输分组的装置和方法,以及用于接收分组的装置和方法,其通过考虑时序模型 在MPEG-2系统和RTP时序模型中。 用于发送分组的设备从MMT系统发送分组,并且包括:基于输入画面编码的视频流; 以及MMT打包部分,用于通过打包对应于所述视频流的音频流来生成MMT分组,其中,所述MMT打包部分通过包括同步信息来生成所述MMT分组,所述同步信息基于系统时钟(STC) 视频和音频编码器的主节目时钟,以及MMT缓冲延迟。 结果,可以实现各种媒体源的同步,分组到达抖动的测量,以及用于发送的设备和用于接收MMT的设备的STC时钟锁定。
    • 15. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING MEDIA CONTENT VIA A SINGLE PORT OR MULTIPLE PORTS
    • 用于通过单个端口或多个端口发送媒体内容的方法和装置
    • WO2012099426A2
    • 2012-07-26
    • PCT/KR2012000509
    • 2012-01-19
    • KOREA ELECTRONICS TELECOMMBAE SEONG JUNLEE JIN YOUNGKANG JUNG WONJUNG SOON HEUNG
    • BAE SEONG JUNLEE JIN YOUNGKANG JUNG WONJUNG SOON HEUNG
    • H04N21/236
    • H04N21/64322
    • Disclosed is a method for generating a substream ID usable in transmitting media content based on a plurality of scenarios, and allocating the substream ID for transmitting media. A method for allocating an ID for transmitting media content comprises: a step of generating a substream ID containing information required for transmitting the media content based on a certain scenario from among a plurality of scenarios; and a step of transmitting the substream ID to a client. According to the present invention, a header for the transmission of media may be simplified, media content may be transmitted regardless of the number of ports, number of servers, and presence/absence of additional information, an application to be introduced in the future may be used, and backward compatibility for an existing media content transmission system may be provided. (Representative drawing) Figure 5.
    • 公开了一种用于生成可用于基于多个场景发送媒体内容的子流ID的方法,并且分配用于发送媒体的子流ID。 一种用于分配用于发送媒体内容的ID的方法包括:从多个场景中生成包含基于某种场景发送媒体内容所需的信息的子流ID的步骤; 以及将子流ID发送给客户端的步骤。 根据本发明,可以简化用于媒体传输的报头,而不管端口数量,服务器数量以及是否存在附加信息,可以传送媒体内容,将来可能引入的应用 并且可以提供用于现有媒体内容传输系统的向后兼容性。 (代表图)图5。