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    METHOD AND APPARATUS FOR PROVIDING BROADCAST SERVICE
    3.
    发明申请
    METHOD AND APPARATUS FOR PROVIDING BROADCAST SERVICE 审中-公开

    公开(公告)号：US20190037280A1

    公开(公告)日：2019-01-31

    申请号：US16048899

    申请日：2018-07-30

    申请人： Samsung Electronics Co., Ltd.

    发明人： Hyun-Koo YANG ,  Dong-Yeon KIM ,  Kyung-Mo PARK ,  Jae-Hyeon BAE ,  Young-Wan SO

    IPC分类号： H04N21/6334 ,  G06F21/64 ,  H04N21/643 ,  H04N21/438

    摘要： A method for providing a broadcast service is provided. The method includes transmitting a user datagram protocol (UDP)/internet protocol (IP) packet including a first message, the first message containing information about a message to be signed and transmitted, and transmitting a moving picture experts group (MPEG) media transport protocol (MMTP) packet including a second message, the second message containing information about the broadcast service and information indicating whether the information about the broadcast service is signed. The first message includes an identifier of a key used to verify a signature of the message to be transmitted and signed and an identifier of a hash algorithm used to calculate a hash value of the message to be transmitted and signed.

    MULTIMEDIA SERVICE CONTENT PROVIDING DEVICE AND METHOD
    6.
    发明申请
    MULTIMEDIA SERVICE CONTENT PROVIDING DEVICE AND METHOD 有权

    公开(公告)号：US20210136425A1

    公开(公告)日：2021-05-06

    申请号：US16488828

    申请日：2018-03-29

    申请人： Samsung Electronics Co., Ltd.

    发明人： Jae-Hyeon BAE ,  Dong-Yeon KIM ,  Kyung-Mo PARK ,  Young-Wan SO ,  Hyun-Koo YANG

    IPC分类号： H04N21/2381 ,  H04L29/06 ,  H04L29/12 ,  H04N21/643

    摘要： The present disclosure relates to a method and device for receiving a content by a terminal device. The method for receiving a content by a terminal device comprises the steps of: transmitting a query message requesting content-related information to a first server; receiving a response message including the content-related information from the first server; on the basis of the response message, requesting a content from a second server corresponding to the content-related information; and receiving the content from the second server, wherein the content-related information includes internet protocol (IP) addresses of the second server, pieces of port information, and pieces of media information relating to a content.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA PACKET IN MULTIMEDIA SYSTEM
    9.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA PACKET IN MULTIMEDIA SYSTEM 审中-公开

    公开(公告)号：US20190245951A1

    公开(公告)日：2019-08-08

    申请号：US15999060

    申请日：2017-02-17

    申请人： Samsung Electronics Co., Ltd.

    发明人： Dong-Yeon KIM ,  Hyun-Koo YANG ,  Jae-Hyeon BAE ,  Kyung-Mo PARK ,  Young-Wan SO

    IPC分类号： H04L29/08 ,  H04L29/06

    CPC分类号： H04L69/324 ,  H04L12/64 ,  H04L47/34 ,  H04L65/607 ,  H04L69/22

    摘要： Disclosed is a method for receiving a data packet by a receiving apparatus in a multimedia system, the method comprising: receiving the data packet; obtaining, from a payload header of the data packet, a fragment indicator including information about fragmentation of a data unit in a payload of the data packet and a fragment counter indicating a number of at least one payload containing at least one fragment of the data unit succeeding the payload; and identifying that at least one number indicated by the fragment counter is to be reused in a case that the fragment indicator includes a value indicating that the payload contains a fragment of the data unit that is neither a first nor a last fragment, and the fragment counter indicates a number indicating that there is no at least one payload containing the at least one fragment of the data unit succeeding the payload, wherein a total number of fragments of the data unit is larger than a maximum number indicated by the fragment counter.