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公开(公告)号：US20210160542A1
公开(公告)日：2021-05-27
申请号：US17166459
申请日：2021-02-03
发明人： Sung-Hee HWANG , Kyung-Mo PARK , Hyun-Koo YANG
IPC分类号： H04N19/65 , H04N21/236 , H04N21/2383 , H04N21/643 , H04N19/89
摘要： A method for encoding a packet in a broadcasting system supporting an Internet Protocol (IP)-based multimedia service is provided. The method includes dividing a data stream into data payloads, generating a Motion Picture Expert Group (MPEG) Media Transport (MMT) packet by adding a first header to each of the data payloads, and generating a source packet by adding an MMT packet header to the MMT packet and performing Forward Error Correction (FEC) encoding on the header-added MMT packet. The MMT packet header includes type information of the MMT packet.
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公开(公告)号：US20210136425A1
公开(公告)日：2021-05-06
申请号：US16488828
申请日：2018-03-29
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.
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公开(公告)号：US20200296188A1
公开(公告)日：2020-09-17
申请号：US16891849
申请日：2020-06-03
发明人： Hyun-Koo YANG , Kyung-Mo PARK , Young-Wan SO , Sung-Hee HWANG
IPC分类号： H04L29/06 , H04L12/721 , H04L29/08
摘要： A transmitting apparatus and an operating method for the apparatus in a multimedia system are provided. The operating method includes inputting at least one network layer packet, generating a link layer packet based on the at least one network layer packet, and transmitting the link layer packet. The link layer packet includes a header including information indicating a packet type of the at least one network layer packet, information indicating whether the link layer packet includes a single network layer packet, and information indicating an identifier related to the at least one network layer packet.
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公开(公告)号：US20200280747A1
公开(公告)日：2020-09-03
申请号：US16878066
申请日：2020-05-19
发明人： Kyung-Mo PARK , Sung-Oh HWANG , Jae-Yeon SONG
IPC分类号： H04N21/236 , H04N21/242 , H04N21/643 , H04L29/06 , H04W80/04
摘要： An apparatus and a method for transmitting a multimedia frame through a heterogeneous network in a broadcast system supporting a multimedia service based on an internet protocol are provided. The method includes generating header information including a frame identifier distinguishing a multimedia frame and information measuring a quality of a connection service between network layers and end-to-end network capabilities, and combining the header information and multimedia data to configure the multimedia frame.
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公开(公告)号：US20200228584A1
公开(公告)日：2020-07-16
申请号：US16834219
申请日：2020-03-30
发明人： Sung-Oh HWANG , Ji-Eun KEUM , Jae-Yeon SONG , Sung-Ryeul RHYU , Kyung-Mo PARK
IPC分类号： H04L29/06
摘要： 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.
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公开(公告)号：US20190281339A1
公开(公告)日：2019-09-12
申请号：US16304422
申请日：2017-05-26
发明人： Young-Wan SO , Dong-Yeon KIM , Kyung-Mo PARK , Jae-Hyeon BAE , Hyun-Koo YANG
IPC分类号： H04N21/278 , H04N21/2668 , H04N21/262
摘要： A method for providing a media service list to a user according to an embodiment of the present disclosure comprises the steps of: acquiring location information of at least one media service list; receiving the at least one media service list on the basis of the location information; generating an integrated media service list by integrating the received at least one media service list; and providing the integrated media service list to a user.
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公开(公告)号：US20190245951A1
公开(公告)日：2019-08-08
申请号：US15999060
申请日：2017-02-17
发明人： Dong-Yeon KIM , Hyun-Koo YANG , Jae-Hyeon BAE , Kyung-Mo PARK , Young-Wan SO
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.
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公开(公告)号：US20180310139A1
公开(公告)日：2018-10-25
申请号：US15767897
申请日：2016-10-13
发明人： Hyun-Koo YANG , Kyung-Mo PARK , Jae-Hyeon BAE , Young-Wan SO , Byeong-Doo CHOI
CPC分类号： H04W4/08 , H04W4/06 , H04W28/10 , H04W56/00 , H04W56/004
摘要： A method for providing a multimedia service based on unicast, according to the present invention, comprises the steps of: packetizing multimedia data; when a terminal accesses the multimedia service, determining a mode for transmitting the multimedia data to the terminal; generating a signaling message including information on the determined mode, and transmitting the signaling message to the terminal; and transmitting first data among the packetized multimedia data to the terminal on the basis of the determined mode.
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公开(公告)号：US20180302662A1
公开(公告)日：2018-10-18
申请号：US15768414
申请日：2016-10-13
发明人： Young-Wan SO , Kyung-Mo PARK , Jae-Hyeon BAE , Hyun-Koo YANG , Byeong-Doo CHOI
IPC分类号： H04N21/439 , H04N21/84 , H04N21/858 , H04N21/643 , H04N21/854
摘要： A method for transmitting media data according to an embodiment of the present disclosure comprises receiving meta data, converting the meta data into a predetermined format corresponding to a bit stream for media data, incorporating the converted meta data into the bit stream, and transmitting the bit stream incorporating the meta data.
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公开(公告)号：US20180234711A1
公开(公告)日：2018-08-16
申请号：US15900184
申请日：2018-02-20
发明人： Sung-Oh HWANG , Yong-Han KIM , Kyung-Mo PARK , Sung-Ryeul RHYU , Jae-Yeon SONG
IPC分类号： H04N21/2362 , H04N21/61 , H04N21/462 , H04N21/434 , H04N21/235 , H04H60/73 , H04H60/13
CPC分类号： H04N21/2362 , H04H60/13 , H04H60/73 , H04N21/235 , H04N21/4345 , H04N21/462 , H04N21/6125
摘要： A server for transmitting and receiving messages for a Signaling (S) layer in a Moving Picture Experts Group (MPEG) Media Transport (MMT) is provided. The server includes a first sub-layer of the S layer for producing first messages to provide information used for the use of MPEG a second sub-layer of the S layer for producing second messages to provide information used for delivering MPEG media, and a Delivery (D) layer for making external and internal deliveries of the first and the second messages, wherein each of the first and the second messages includes at least one field corresponding to each of the message type, version, length, extension field and payload.
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