Interface apparatus and method for transmitting and receiving media data

    公开(公告)号:US11196786B2

    公开(公告)日:2021-12-07

    申请号:US16834219

    申请日:2020-03-30

    Abstract: An apparatus is provided for transmitting multimedia content. The apparatus includes a communication interface and a controller coupled to the communication interface. The controller is configured to identify a packet including a packet header and a packet payload. The packet payload includes an access unit including media data related to the multimedia content and information related to the access unit. The controller is also configured to identify control information for delivery and consumption of the multimedia content, and transmit the identified packet and the identified control information. The information related to the access unit includes information on a sequence number of the access unit.

    Multimedia service content providing device and method

    公开(公告)号:US11190815B2

    公开(公告)日:2021-11-30

    申请号:US16488828

    申请日:2018-03-29

    Abstract: 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 providing broadcast service

    公开(公告)号:US11172268B2

    公开(公告)日:2021-11-09

    申请号:US16048899

    申请日:2018-07-30

    Abstract: 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.

Patent Agency Ranking