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    • 10. 发明公开
    • 엠엠티의 하이브리드 전송 서비스에서 패킷 전송 및 수신 장치 및 방법
    • MMT混合传输服务中的分组传输和接收装置和方法
    • KR1020140008237A
    • 2014-01-21
    • KR1020130049304
    • 2013-05-02
    • 연세대학교 원주산학협력단한국전자통신연구원
    • 김창기유정주홍진우서광덕
    • H04N21/236H04N21/434
    • H04L69/22H04L67/02H04L67/14H04L69/28H04L69/327H04N21/2381H04N21/242H04N21/64322H04N21/6437H04N21/8547
    • The present invention relates to an apparatus for transmitting packets in an MPEG media transport (MMT) system comprising: an MMT packetizing unit which generates MMT packets by recording standard time information related to a media access unit (AU) for providing synchronization of the media AU; and a transmission unit which transmits the generated MMT packets to a recipient side. Accordingly, a synchronization between different media can be provided in a hybrid transmission environment where media streams belonging to one program are transmitted from different servers. [Reference numerals] (AA) Start; (BB) End; (S510) AU input; (S520) Generate MPU by encapsulating the AU; (S530) Generate PTS relative to a first AU among the MPUs; (S540) Generate UTC information corresponding to the PTS? (UTC_resolution=?); (S550) Include UTC resolution information and generate UTC time information corresponding to the PTS(One among the UTC_resolution, UTC_32, UTC_48, and UTC_64); (S555) Generate the UTC resolution information(UTC_resolution); (S560) Store the generated UTC time information in an MPU header or MMT-CI; (S570) Generate an MMT asset
    • 本发明涉及一种用于在MPEG媒体传输(MMT)系统中发送分组的装置,包括:MMT分组单元,其通过记录与媒体接入单元(AU)相关的标准时间信息来产生MMT分组,用于提供媒体AU的同步 ; 以及发送单元,其将生成的MMT分组发送到接收方。 因此,可以在混合传输环境中提供不同媒体之间的同步,其中属于一个节目的媒体流从不同的服务器发送。 (附图标记)(AA)开始; (BB)结束; (S510)AU输入; (S520)通过封装AU生成MPU; (S530)生成相对于MPU中的第一AU的PTS; (S540)生成对应于PTS的UTC信息? (UTC_resolution =?); (S550)包括UTC分辨率信息并生成对应于PTS的UTC时间信息(UTC_resolution,UTC_32,UTC_48和UTC_64之一); (S555)生成UTC分辨率信息(UTC_resolution); (S560)将生成的UTC时间信息存储在MPU头或MMT-CI中; (S570)生成MMT资产