Method and apparatus for reproducing multimedia data

    公开(公告)号:US10555030B2

    公开(公告)日:2020-02-04

    申请号:US15109595

    申请日:2015-01-08

    摘要: The present invention provides a method and an apparatus for reproducing multimedia data in a broadcasting and communication system. The apparatus for reproducing multimedia data according to an embodiment of the present invention comprises: a receiver for receiving multimedia data; a data processor for processing the received multimedia data and extracting a data unit and signaling information; a synchronization information processor for extracting synchronization information related to a broadcasting image provided by a current service from the signaling information; a service demultiplexer for extracting audio data or video data from the data unit; and a broadcasting image reproducer for decoding the audio data or video data, and reproducing the decoded audio data or decoded video data on the basis of the synchronization information.

    Method for generating forward error correction packet in multimedia system and method and apparatus for transmitting and receiving forward error correction packet
    9.
    发明授权
    Method for generating forward error correction packet in multimedia system and method and apparatus for transmitting and receiving forward error correction packet 有权
    用于在多媒体系统中生成前向纠错分组的方法和用于发送和接收前向纠错分组的方法和装置

    公开(公告)号:US09571124B2

    公开(公告)日:2017-02-14

    申请号:US15229889

    申请日:2016-08-05

    IPC分类号: H03M13/00 H03M13/05 H04L1/00

    摘要: A method and apparatus for transmitting a Forward Error Correction (FEC) packet block including a plurality of FEC packets in a multimedia system are provided. The method includes generating a plurality of first FEC packet blocks by performing a first FEC encoding on a plurality of source symbols, each of the plurality of first FEC packet blocks including at least one source packet and at least one repair packet for repair of each of the at least one source packet, generating a second FEC packet block by performing a second FEC encoding on the plurality of first FEC packet blocks, the second FEC packet block including at least one repair packet for the plurality of first FEC packet blocks, and transmitting the second FEC packet block that includes, in header information of each of the at least one source packet and the at least one repair packet.

    摘要翻译: 提供一种用于在多媒体系统中发送包括多个FEC分组的前向纠错(FEC)分组块的方法和装置。 该方法包括通过在多个源符号上执行第一FEC编码来生成多个第一FEC分组块,多个第一FEC分组块中的每一个包括至少一个源分组和至少一个修复分组,用于修复 所述至少一个源分组通过对所述多个第一FEC分组块执行第二FEC编码来生成第二FEC分组块,所述第二FEC分组块包括用于所述多个第一FEC分组块的至少一个修复分组,以及发送 所述第二FEC分组块在所述至少一个源分组和所述至少一个修复分组中的每一个的报头信息中包括。