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公开(公告)号：US20220060798A1
公开(公告)日：2022-02-24
申请号：US17520195
申请日：2021-11-05
发明人： Hyun-Koo YANG , Dong-Yeon KIM , Kyung-Mo PARK , Jae-Hyeon BAE , Young-Wan SO
IPC分类号： H04N21/6334 , H04N21/438 , H04N21/643 , G06F21/64 , H04N21/2362
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.
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公开(公告)号：US20200351390A1
公开(公告)日：2020-11-05
申请号：US16933565
申请日：2020-07-20
发明人： Sung-hee HWANG , Alain MOURAD , Hyun-Koo YANG
IPC分类号： H04L29/06 , H04N21/236 , H04L5/00 , H04N21/2383 , H04N21/2381 , H03M13/25 , H04N21/2362 , H04N21/426 , H04N21/434 , H04N21/647 , H04N21/00
摘要： A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: a baseband packet generator configured to, based on an input stream including a first type stream and a second type stream, generate a baseband packet including a header and payload data corresponding to the first type stream; a frame generator configured to generate a frame including the baseband packet; a signal processor configured to perform signal-processing on the generated frame; and a transmitter configured to transmit the signal-processed frame, wherein the header includes a type of the payload data in the baseband packet and the number of the first type stream packets in the baseband packet.
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3.发明申请公开(公告)号：US20200259589A1
公开(公告)日：2020-08-13
申请号：US16753197
申请日：2018-10-15
发明人： Jae-Hyeon BAE , Young-Wan SO , Dong-Yeon KIM , Hyun-Koo YANG
摘要： The present invention relates to a method and device for transmitting or receiving a broadcast service including a packet, which is generated using an application layer forward error correction (AL-FEC) scheme, in a multimedia service system. An embodiment of the present invention provides a method for transmitting a broadcast service by a transmitter, the method comprising the steps of: determining one forward error correction (FEC) scheme for a broadcast service among multiple FEC schemes; configuring a signaling message so as to include an identifier indicating the determined FEC scheme; and transmitting the configured signaling message.
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公开(公告)号：US20190222904A1
公开(公告)日：2019-07-18
申请号：US16306812
申请日：2017-06-02
发明人： Kyung-Mo PARK , Jae-Hyeon BAE , Young-Wan SO , Hyun-Koo YANG , Dong-Yeon KIM , Hyeon-Cheol PU
IPC分类号： H04N21/6332 , H04N21/2343 , H04N21/854 , H04N21/643
CPC分类号： H04N21/6332 , H04N21/23424 , H04N21/2343 , H04N21/262 , H04N21/26258 , H04N21/435 , H04N21/462 , H04N21/482 , H04N21/643 , H04N21/854
摘要： According to an embodiment of the disclosure, a method for providing media content comprises the steps of: receiving a change request message for requesting a change of at least a part of specific media data constituting media content; updating a signaling message for the consumption of the media content on the basis of the change request message; and transmitting the updated signaling message to a reception entity.
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公开(公告)号：US20190166230A1
公开(公告)日：2019-05-30
申请号：US16265308
申请日：2019-02-01
发明人： Hyun-Koo YANG , Kyung-Mo PARK , Young-Wan SO , Sung-Hee HWANG
IPC分类号： H04L29/06 , H04L29/08 , H04L12/721
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：US20180295545A1
公开(公告)日：2018-10-11
申请号：US15766211
申请日：2016-10-13
发明人： Jae-Hyeon BAE , Kyung-Mo PARK , Young-Wan SO , Hyun-Koo YANG
摘要： A method for determining a network for receiving, by a user terminal, data for a content service, according to an embodiment of the present disclosure, comprises the steps of: receiving the data from a first network; receiving transmission characteristic information of the data for receiving the data from the first network; obtaining network state information of a second network using information included in a packet header of the data; and determining whether to switch the network for receiving the data from the first network to the second network, on the basis of the transmission characteristic information and the second network information.
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公开(公告)号：US20180199235A1
公开(公告)日：2018-07-12
申请号：US15905225
申请日：2018-02-26
发明人： Sung-hee HWANG , Hyun-Koo YANG , Sung-oh HWANG
CPC分类号： H04W28/065 , H04L27/2601 , H04L69/22 , H04W28/06
摘要： A method for generating a packet of transmitting apparatus is provided. The method includes: setting a value of a Deleted Null Packet (DNP) counter to zero; increasing the value for each deleted null packet preceding a non-null transport stream (TS) packet; and generating a packet comprising a header and a payload, wherein the header includes a DNP field, the payload includes the non-null TS packet, and the value of the DNP counter is used to set the DNP field.
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8.发明申请公开(公告)号：US20180041307A1
公开(公告)日：2018-02-08
申请号：US15720770
申请日：2017-09-29
发明人： Hong-Sil JEONG , Ismael GUTIERREZ , Alain MOURAD , Sung-Ryul YUN , Hyun-Koo YANG
IPC分类号： H04L1/00
CPC分类号： H04L1/0057 , H04L1/0072
摘要： A method and an apparatus for encoding, transmitting, and receiving signaling information in a broadcasting/communication system are provided. The method includes generating the signaling information which comprises a plurality of pieces; determining a number of coded blocks to which the signaling information is to be encoded, based on a number of bits of the signaling information and a number of encoder input information bit; segmenting each piece of the signaling information based on the number of the coded blocks; constructing input information bits of each coded block to include segmented parts of each piece of the signaling information; encoding the input information bits to each coded block; and transmitting each coded block.
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公开(公告)号：US20170134542A1
公开(公告)日：2017-05-11
申请号：US15319208
申请日：2015-06-25
发明人： Sung-Hee HWANG , Hyun-Koo YANG
CPC分类号： H04L69/324 , G06F3/14 , G09G5/006 , G09G5/06 , G09G2370/10 , H04L12/00 , H04L12/4625 , H04L69/22
摘要： The present invention provides a method for transmitting a frame in a communication system that generates layer 2 (L2) signalling information related to an L2 service, that checks whether a baseband frame (BBF) exists that is divided from BBFs forming a frame and respectively included in the frame and other frames, that constitutes the frame such that a baseband packet (BBP) corresponding to the first BBF of the BBFs includes the L2 signalling information if there is no BBF included in the respective frame and the other frames, and that transmits the same.
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公开(公告)号：US20170104685A1
公开(公告)日：2017-04-13
申请号：US15129294
申请日：2015-03-30
发明人： Sung-Hee HWANG , Hyun-Koo YANG
IPC分类号： H04L12/823 , H04L29/08 , H04L1/00
CPC分类号： H04L47/32 , H04L1/0006 , H04L1/0041 , H04L1/0057 , H04L1/0072 , H04L69/329 , H04N21/2343 , H04N21/2383 , H04N21/2662
摘要： The present invention relates to a method for transmitting a packet in a communication system, the method comprising: generating drop information indicating at least one source packet to be dropped among source packets to be transmitted and whether or not to drop each of the other source packets except the at least one source packet; performing forward error correction (FEC) encoding on the drop information and the other source packets except the at least one source packet; generating a repair packet comprising repair data for restoring the drop information and a repair symbol for restoring the other source packets except the at least one source packet; and transmitting the other source packets except the at least one source packet and the repair packet.
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