公开(公告)号：US20190141354A1

公开(公告)日：2019-05-09

申请号：US16240072

申请日：2019-01-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Hee HWANG ,  Kyung-Mo PARK ,  Hyun-Koo YANG

IPC: H04N19/65 ,  H04N21/236 ,  H04N19/89 ,  H04N21/643 ,  H04N21/2383

Abstract: 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.

公开(公告)号：US20190058749A1

公开(公告)日：2019-02-21

申请号：US16166983

申请日：2018-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Mo PARK ,  Sung-Ryeul RHYU ,  Sung-Oh HWANG ,  Jae-Yeon SONG

IPC: H04L29/06

Abstract: A method and an apparatus of transmitting media content in a multimedia system are provided. The method includes determining a transmission unit for transmitting at least one multimedia source related to the media content, generating a data stream including header information and the at least one multimedia source according to the determined transmission unit, and transmitting the data stream through a communication network.

公开(公告)号：US20190036997A1

公开(公告)日：2019-01-31

申请号：US16148140

申请日：2018-10-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Mo PARK ,  Sung-Oh HWANG ,  Jae-Yeon SONG

IPC: H04L29/06 ,  H04N21/6437 ,  H04N21/643 ,  H04N21/438 ,  H04N21/2381 ,  H04N21/235 ,  H04H60/07

CPC classification number: H04L65/601 ,  H04H60/07 ,  H04N21/235 ,  H04N21/2381 ,  H04N21/4381 ,  H04N21/64322 ,  H04N21/6437

Abstract: An apparatus and a method for transmitting multimedia data in a broadcast system are provided. A method for constructing a payload for a multimedia frame to be transmitted via a heterogeneous network, in a broadcast system that supports an Internet protocol-based multimedia service, includes dividing the data so as to transmit data of at least one media type and constructing a data region based on each datum of the divided data, constructing a header region including information on the state of the data contained in the data region and/or information on the data region, and combining the data region and the header region to construct a payload for the multimedia frame.

公开(公告)号：US20190028523A1

公开(公告)日：2019-01-24

申请号：US16137090

申请日：2018-09-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Mo PARK ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

IPC: H04L29/06 ,  H04L12/835 ,  H04N21/472 ,  H04N21/2343 ,  H04L12/853 ,  H04N21/6587 ,  H04N21/845 ,  H04L29/08

CPC classification number: H04L65/4069 ,  H04L47/2416 ,  H04L47/30 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L67/02 ,  H04L67/42 ,  H04L69/16 ,  H04N21/234327 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/8456

Abstract: A method for receiving a media data is provided. The method includes receiving, by a client from a server, a media presentation description (MPD) including segment information; and receiving media data based on the MPD, wherein the media data comprises a segment, wherein the segment includes a fragment, and wherein the fragment includes a subfregment, wherein the segment information indicates a location of the media data, and wherein the segment information comprises segment index information indicating a corresponding byte range related one fragment, and fragment index information for accessing different levels of a plurality of subfragments.

公开(公告)号：US20170347134A1

公开(公告)日：2017-11-30

申请号：US15544423

申请日：2016-01-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Hyeon BAE ,  Kyung-Mo PARK ,  Young-Wan SO ,  Hyun-Koo YANG ,  Sung-Hee HWANG

IPC: H04N21/2381 ,  H04L29/06 ,  H04N21/61 ,  H04N21/438 ,  H04N21/472

CPC classification number: H04N21/2381 ,  H04L69/18 ,  H04L69/24 ,  H04N21/238 ,  H04N21/4383 ,  H04N21/47202 ,  H04N21/6125

Abstract: The present disclosure relates to a method of transmitting multimedia content in a broadcast communication system, and comprises the steps of: identifying protocol information mapped for each service corresponding to multimedia content; transmitting service-related information including the identified protocol information mapped for each service; and transmitting multimedia content corresponding to related services to a receiving side by using the identified protocol.

公开(公告)号：US20170230139A1

公开(公告)日：2017-08-10

申请号：US15438439

申请日：2017-02-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Hee HWANG ,  Kyung-Mo PARK ,  Sung-Ryeul RHYU ,  Hyun-Koo YANG ,  Sung-Oh HWANG

IPC: H04L1/00 ,  H04N19/89

CPC classification number: H04L1/0041 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/2906 ,  H03M13/35 ,  H03M13/3761 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6362 ,  H04L1/0017 ,  H04L1/0066 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/008 ,  H04L1/0083 ,  H04N19/30 ,  H04N19/89

Abstract: The present invention relates to a device and method for transmitting/receiving a packet in a communication system. The present invention includes: the processes of determining at least one MPEG media transport (MMT) asset protected by an application layer forward error correction (AL-FEC); determining at least one FEC flow for transmitting the at least one MMT asset; determining the MMT asset transmitted from the at least one FEC flow in each case and determining an FEC coding structure to apply to the at least one FEC flow; producing at least one source flow by dividing the MMT asset transmitted from the at least one FEC flow on a transmission unit basis; and producing and transmitting at least one parity flow by performing AL-FEC encoding on the at least one source flow according to the FEC coding structure.

公开(公告)号：US20170163561A1

公开(公告)日：2017-06-08

申请号：US15441662

申请日：2017-02-24

Applicant: Samsung Electronics Co., Ltd. ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Sung-Oh HWANG ,  Kyung-Mo PARK ,  Jae-Yeon SONG ,  Doug Young SUH ,  Yong-Il KWON

IPC: H04L12/927 ,  H04N21/845 ,  H04N21/2343 ,  H04L12/26 ,  H04L29/08

CPC classification number: H04L47/805 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/0888 ,  H04L69/325 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/647 ,  H04N21/8451

Abstract: An apparatus and method for transmitting a multimedia data packet are provided. The method includes receiving Bottom-up Network Abstraction Layer (B-NAL) information from a network entity, determining a media data quality based on the received B-NAL information and generating media data having the determined media data quality, and generating a packet including the generated media data and transmitting the packet to the network entity.

公开(公告)号：US20170155930A1

公开(公告)日：2017-06-01

申请号：US15323592

申请日：2015-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyung-Mo PARK ,  Hyeon-Cheol PU

IPC: H04N21/234 ,  H04N21/854 ,  H04N21/6336

Abstract: The method for transmitting data in a communication system provided by one embodiment of the present disclosure comprises the steps of: determining a data piece which is not to be transmitted, in view of importance information on respective data pieces constituting a data unit to be transmitted; generating an incomplete data indicator indicating that at least one data piece is not transmitted among all of the data pieces constituting the data unit; and transmitting the incomplete data indicator and the data pieces other than the data piece which has been determined not to be transmitted.

公开(公告)号：US20170155478A1

公开(公告)日：2017-06-01

申请号：US15319231

申请日：2015-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Young-Wan SO ,  Kyung-Mo PARK ,  Doug-Young SUH ,  Yong-Woo CHO

IPC: H04L1/18 ,  H04L1/00 ,  H04N21/236

CPC classification number: H04L1/1864 ,  H04H60/11 ,  H04H2201/37 ,  H04L1/0045 ,  H04L1/1812 ,  H04L29/08 ,  H04N21/236 ,  H04N21/2404 ,  H04N21/4425 ,  H04N21/6473

Abstract: Provided are a method and a device for transmitting and receiving multimedia data. The present invention comprises: receiving of multimedia data and confirming of loss data; determining, with respect to the degree of the loss of the received data, of whether or not the lost data can be recovered by means of application layer forward error correction (AL-FEC); if data recovery by means of the AL-FEC is not possible, making of an automatic retransmission request (ARQ) with respect to the lost data; and receiving of data retransmitted with respect to the ARQ and recovering of the lost data.

公开(公告)号：US20170126761A1

公开(公告)日：2017-05-04

申请号：US15357637

申请日：2016-11-21

Applicant: Samsung Electronics Co., Ltd. ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Kyung-Mo PARK ,  Doug-Young SUH ,  Yong-Hun LEE ,  Jae-Yeon SONG

IPC: H04L29/06

CPC classification number: H04L65/4069 ,  H04L47/2416 ,  H04L47/30 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L67/02 ,  H04L67/42 ,  H04L69/16 ,  H04N21/234327 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/8456

Abstract: A method for receiving a media data is provided. The method includes receiving, by a client from a server, a media presentation description (MPD) including segment information; and receiving media data based on the MPD, wherein the media data comprises a segment, wherein the segment includes a fragment, and wherein the fragment includes a subfregment, wherein the segment information indicates a location of the media data, and wherein the segment information comprises segment index information indicating a corresponding byte range related one fragment, and fragment index information for accessing different levels of a plurality of subfragments.