WO2008136623A1 - Procédé et appareil permettant d'obtenir un service multimédia haute qualité dans un système de transmission de radiodiffusion multimédia numérique (dmb) - Google Patents

Procédé et appareil permettant d'obtenir un service multimédia haute qualité dans un système de transmission de radiodiffusion multimédia numérique (dmb) Download PDF

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Publication number
WO2008136623A1
WO2008136623A1 PCT/KR2008/002516 KR2008002516W WO2008136623A1 WO 2008136623 A1 WO2008136623 A1 WO 2008136623A1 KR 2008002516 W KR2008002516 W KR 2008002516W WO 2008136623 A1 WO2008136623 A1 WO 2008136623A1
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WO
WIPO (PCT)
Prior art keywords
base layer
enhancement layer
packet
layer
pes
Prior art date
Application number
PCT/KR2008/002516
Other languages
English (en)
Inventor
Kwang-Yong Kim
Gwang-Soon Lee
Joungil Yun
Young-Su Kim
Kyu-Tae Yang
Jae-Hwui Bae
Seomee Choi
Ju-Yeun Kim
Jae-Hyun Seo
Jong-Soo Lim
Soo-In Lee
Original Assignee
Electronics And Telecommunications Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to EP08753313A priority Critical patent/EP2153645A4/fr
Priority to CN2008800231475A priority patent/CN101690200B/zh
Publication of WO2008136623A1 publication Critical patent/WO2008136623A1/fr

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    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43074—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of additional data with content streams on the same device, e.g. of EPG data or interactive icon with a TV program
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    • H04H2201/11—Aspects of broadcast communication characterised by the type of broadcast system digital multimedia broadcasting [DMB]

Definitions

  • the present invention relates to a media processing method and apparatus for providing high-quality multimedia services, by which a function for providing high-quality services is added to digital multimedia broadcasting and backward compatibility with existing receivers can be maintained.
  • the present invention is derived from a research project supported by the Information Technology (IT) Research & Development (R&D) program of the Ministry of Information and Communication (MIC) [2006-S-017-02, Development of High-Tech Terrestrial DMB Transmission].
  • IT Information Technology
  • R&D Research & Development
  • MIC Ministry of Information and Communication
  • DMB digital multimedia broadcasting
  • a multi-media service is multiplexed into a single transport stream and the multiplexed service is transmitted.
  • DMB broadcasting multi-media services are provided through a single stream, and thus there is a limit in providing a high-quality service.
  • FIG. 1 is a block diagram illustrating a structure of a media processor of a conventional transmission unit in digital multimedia broadcasting (DMB);
  • DMB digital multimedia broadcasting
  • FIG. 2 is a conceptual diagram illustrating a system for providing high-quality multimedia services in DMB, according to an embodiment of the present invention
  • FIG. 3 is a block diagram for illustrating an encoding and multiplexing method performed in an encoding unit, according to one embodiment of the present invention
  • FIG. 4 is a block diagram for illustrating an encoding and multiplexing method performed in an encoding unit, according to another embodiment of the present invention
  • FIG. 5 is a block diagram of a receiving device that performs a decoding and de-multiplexing method corresponding to the encoding and multiplexing method illustrated in FIG. 3.
  • FIG. 6 is a flowchart illustrating a decoding and de-multiplexing method performed in a decoding unit, according to one embodiment of the present invention
  • FIG. 7 is a block diagram for describing a decoding and de-multiplexing method performed in a decoding unit, according to another embodiment of the present invention.
  • FIG. 8 is a flowchart of the decoding and de-multiplexing method illustrated in FIG. 7;
  • FIG. 9 illustrates a decoding and de-multiplexing method according to another embodiment of the present invention
  • FIG. 10 illustrates an MPEG-4 object descriptor (OD) used in the present invention
  • FIG. 11 is a block diagram of a transmission device for providing high-quality multimedia services in a DMB transmission system, according to an exemplary embodiment of the present invention
  • FIG. 12 is a block diagram of a reception device for providing high-quality multimedia services in a DMB transmission system, according to an exemplary embodiment of the present invention.
  • the present invention provides a transceiving method and apparatus by which a function for providing high-quality services is added to digital multimedia broadcasting and backward compatibility with existing receivers can be maintained.
  • the present invention provides a structure in which a transport stream (TS) is separated into a base layer TS and an enhancement layer TS, a conventional TS is transmitted via the base layer TS and additional multimedia service information for high-quality services is multiplexed and transmitted via the enhancement layer TS, so that services transmitted through different transport channels can be incorporated with each other and provided when needed.
  • TS transport stream
  • DMB digital multimedia broadcasting
  • the present invention proposes an apparatus and method of providing high-quality multimedia services in digital multimedia broadcasting (DMB), by which a function for providing high-quality services is added to DMB and compatibility with a conventional DMB network is possible so that a predetermined quality can be maintained with the conventional DMB network even without special machine changes.
  • DMB digital multimedia broadcasting
  • a transmission device for providing high-quality multimedia services in a DMB (digital multimedia broadcasting) transmission system, the transmission device comprising: an encoding unit separating input multimedia contents into a base layer ES (elementary stream) and an enhancement layer ES and encoding the base layer ES and the enhancement layer ES, respectively; an SL (synchronization layer) packet transform unit transforming the base layer ES and the enhancement layer ES into a base layer SL packet and an enhancement layer SL packet, respectively; a PES (program specific information) packet transform unit transforming the base layer SL packet and the enhancement layer SL packet into a base layer PES packet and an enhancement layer PES packet, respectively; and a TS (transport stream) multiplexing unit multiplexing the base layer PES packet and the enhancement layer PES packet, respectively, according to a base layer ES and an enhancement layer ES and outputting a base layer TS packet and an enhancement layer TS packet.
  • a receiving device for providing high-quality multimedia services in a DMB transmission system, the receiving device comprising: a quality selection unit determining whether only a base layer stream is to be received or both the base layer stream and an enhancement layer stream are to be received; a decoding unit decoding the base layer stream and the enhancement layer stream, respectively, and outputting a base layer TS packet and an enhancement layer TS packet, respectively; a TS de-multiplexing unit de-multiplexing the base layer and enhancement layer TS packets, respectively, so as to obtain a base layer PES packet and an enhancement layer PES packet, respectively; a PES de-packet transform unit decoding the base layer and enhancement layer PES packets, respectively, so as to obtain a base layer SL packet and an enhancement layer SL packet, respectively; and an SL de-packet transform unit multiplexing the base layer and enhancement SL packets so as to obtain a base layer ES and an enhancement layer ES.
  • a transmission method for providing high-quality multimedia services in a DMB transmission system comprising: separating input multimedia contents into a base layer ES and an enhancement layer ES and encoding the base layer ES and the enhancement layer ES; transforming the base layer ES and the enhancement layer ES into a base layer SL packet and an enhancement layer SL packet; transforming the base layer SL packet and the enhancement layer SL packet into a base layer PES packet and an enhancement layer PES packet; and multiplexing the base layer PES packet and the enhancement layer PES packet according to a base layer ES and an enhancement layer ES and outputting a base layer TS packet and an enhancement layer TS packet.
  • a receiving method for providing high-quality multimedia services in a DMB transmission system comprising: a quality selection operation of determining whether only a base layer stream is to be received or both the base layer stream and an enhancement layer stream are to be received; a decoding operation of decoding the base layer stream and the enhancement layer stream and outputting a base layer TS packet and an enhancement layer TS packet; a TS de-multiplexing operation of de-multiplexing the base layer and enhancement layer TS packets so as to obtain a base layer PES packet and an enhancement layer PES packet; a PES de-packet transform operation of decoding the base layer and enhancement layer PES packets so as to obtain a base layer SL packet and an enhancement layer SL packet; and an SL de-packet transform operation of multiplexing the base layer and enhancement SL packets so as to obtain a base layer ES and an enhancement layer ES.
  • FIG. 1 is a block diagram illustrating a structure of a media processor of a conventional transmission unit in digital multimedia broadcasting (DMB).
  • DMB digital multimedia broadcasting
  • a video encoder encodes an incoming image signal in accordance with the video standard and an audio encoder encodes an incoming audio signal.
  • An initial object descriptor (IOD) generator 110 generates IOD data which is based on the ISO/IEC 14496-1 standard.
  • An object descriptor (OD)/BIFS (binary format for scenes) generator 120 generates an OD/BIFS stream which is based on the ISO/IEC 14496-1 standard.
  • An SL packetizer 130 (SL - synchronization layer) generates an SL packet, which is a packet for synchronization between incoming media streams, and follows the
  • the SL packetizer 130 receives an
  • OD/BIFS stream a video elementary stream (ES), an audio ES, and additional data and generates an OD/BIFS SL packet, a video SL packet, an audio SL packet, and additional data packet corresponding to the OD/BIFS stream, the video ES, the audio ES, and the additional data, respectively.
  • ES video elementary stream
  • audio ES audio ES
  • additional data generates an OD/BIFS SL packet, a video SL packet, an audio SL packet, and additional data packet corresponding to the OD/BIFS stream, the video ES, the audio ES, and the additional data, respectively.
  • a section generator (or a PSI generator 140) (PSI - program specific information) generates a section including received IOD/OD/BIFS, and follows the ISO/IEC 13818-1 standard.
  • the section generator 140 includes a 14496 section packetization unit for packetizing an SL packet (i.e., the OD/BIFS SL packet) into a 14496 section, and a PSI packetization unit for generating PSI information including the IOD data.
  • a PES packetizer 150 receives and PES-packetizes the SL packets, and follows the ISO/IEC 13818-1 standard.
  • a transport stream (TS) multiplexer 160 receives the section and a PES packet, which is a result of the PES packetization, from the section generator 140 and the PES packetizer 150, respectively, and multiplexes the section and the PES packet to an MPEG-2 TS.
  • FIG. 2 is a conceptual diagram illustrating a system for providing high-quality multimedia services in DMB, according to an embodiment of the present invention.
  • multimedia services are multiplexed and transmitted through a single transport stream.
  • a hierarchical modulation function is given to a DMB transmission system so as to separate a TS into a base layer TS and an enhancement layer TS, and thus a conventional TS is transmitted as the base layer TS and additional multimedia service information for high-quality services is transmitted in the enhancement layer TS.
  • basic-quality multimedia services can be provided to low-spec terminals such as cellular phones, and high-quality multimedia services can be provided to high-spec terminals.
  • An encoding unit includes a high-quality video encoder 210, a high-quality audio encoder 220, and an additional data encoder 230.
  • the high-quality video encoder 210 may be a scalable video encoder, a stereo 3D video encoder, a multi-view video encoder, a multi-channel audio encoder, or the like.
  • the high-quality video encoder 210 separates an input stream into a base layer video ES 211 and an enhancement layer video ES 212 and outputs the base layer video ES 211 and the enhancement layer video ES 212 to a media system encoding and multiplexing unit 240.
  • the media system encoding and multiplexing unit 240 multiplexes the base layer video ES 211 and the enhancement layer video ES 212.
  • the high-quality audio encoder 220 separates an input stream into a base layer audio ES and an enhancement layer audio ES and outputs the base layer audio ES and the enhancement layer audio ES to the media system encoding and multiplexing unit 240.
  • the media system encoding and multiplexing unit 240 multiplexes the base layer audio ES and the enhancement layer audio ES.
  • the additional data encoder 230 separates an input stream into a base layer data ES and an enhancement layer data ES and outputs the base layer data ES and the enhancement layer data ES to the media system encoding and multiplexing unit 240.
  • the media system encoding and multiplexing unit 240 multiplexes the base layer data ES and the enhancement layer data ES.
  • the media system encoding and multiplexing unit 240 multiplexes each of the video, audio, and data ESs respectively received from the high-quality video encoder 210, the high-quality audio encoder 220, and the additional data encoder 230 into a base layer and an enhancement layer.
  • a transmission unit 250 can transmit the multiplexed video, audio, and data ESs via either an identical channel or different channels.
  • a decoding unit includes a high-quality video decoder, a high-quality audio decoder, a reception unit, and a media system decoding and de-multiplexing unit 260.
  • FIGS. 3 and 4 illustrate embodiments of media system encoding and multiplexing methods performed in the encoding unit illustrated in FIG. 2, which are proposed in order to provide high-quality multimedia services in DMB.
  • FIG. 5 is a block diagram of a receiving device that performs a decoding and de-multiplexing method corresponding to the encoding and multiplexing method illustrated in FIG. 3.
  • FIGS. 6 and 7 illustrate decoding and de-multiplexing methods performed in a decoding unit in order to provide high-quality multimedia services in DMB, according to embodiments of the present invention.
  • FIG. 8 is a flowchart illustrating the decoding and de-multiplexing method illustrated in FIG. 7.
  • FIG. 9 illustrates a decoding and de-multiplexing method according to another embodiment of the present invention.
  • FIG. 3 is a block diagram of a media system encoding and multiplexing unit in the encoding unit illustrated in FIG. 2, according to one embodiment of the present invention.
  • an SL packetizer 310 receives a base layer ES and an enhancement layer ES from each of the high-quality video encoder 210, the high-quality audio encoder 220, and the additional data encoder 230 and transforms the received base layer ESs and the enhancement layer ESs into base layer SL packets and enhancement layer SL packets.
  • the SL packetizer 310 synchronizes streams (i.e., video, audio, and data ESs) for a base layer with the corresponding streams (i.e., video, audio, and data ESs) for an enhancement layer in a way similar to the way in which the SL packetizer 130 of FIG. 1 synchronizes video, audio, and data streams.
  • time stamp information such as a composition time stamp (CTS) is inserted into the streams based on an identical OCR (Object Clock Reference) inferred from identical system time clocks (STCs).
  • CTS composition time stamp
  • OCR Object Clock Reference
  • a PES packetizer 320 PES-packetizes the received SL packets in the same or similar way as used in the SL packetizer 130 of FIG. 1 , and inserts time stamps such as presentation time stamps (PTSs) into the base layer ESs and the enhancement layer ESs based on an identical system clock in order to perform synchronization.
  • time stamps such as presentation time stamps (PTSs)
  • Each pair of a pair of IOD generators 350 and 351 , a pair of OD/BIFS generators 360 and 361 , and a pair of section generators 370 and 371 exists for a base layer stream and an enhancement layer stream, and each pair generates a base layer stream and an enhancement layer stream.
  • the media system encoding and multiplexing unit of FIG. 3 includes two TS multiplexers, namely, a base layer TS multiplexer 330 and an enhancement layer TS multiplexer 340.
  • the media system encoding and multiplexing unit of FIG. 3 multiplexes packetized PES streams and PSI section/14496 section streams according to a base layer and an enhancement layer.
  • the two TS multiplexers 330 and 340 generate a base layer MEPG-2 TS packet and an enhancement layer MEPG-2 TS packet by using an identical STC, and also generate a program clock reference (PCR)_by using the identical STC.
  • PCR program clock reference
  • a PCR may be inserted into an audio TS packet that is generated by a relatively small amount and at relatively regular intervals. Accordingly, a PTS and an OCR may also be inserted into only an audio stream
  • the multiplexed base layer MPEG-2 TS packet and the multiplexed enhancement layer MPEG-2 TS packet are respectively encoded in channel encoders suitable for a base layer transmission channel and an enhancement transmission channel, and then respectively transmitted to the base layer transmission channel and the enhancement transmission channel.
  • a base layer stream and an enhancement layer stream may be mapped into a single symbol and transmitted to a single radio frequency (RF) channel.
  • RF radio frequency
  • the base layer PSI information 380 which corresponds to the prior art, is transmitted without changes, and only PMT/OD/BIFS information added for an enhancement layer is extracted and included in the enhancement layer PSI information 381.
  • a receiving terminal can extract corresponding packets from MPEG-2 TSs of the two layers by using the base layer PSI information 380 and the enhancement layer PSI information 381.
  • the conventional base layer PSI information 380 is transmitted without changes, and the enhancement layer PSI information 381 contains extended PMT/OD/BIFS information obtained by adding information for an enhancement layer to PMT/OD/BIFS information for a basic layer.
  • the receiving terminal can extract corresponding packets from MPEG-2 TSs of the two layers by using the base layer PSI information 380 and the enhancement layer PSI information 381 including the extended PMT/OD/BIFS information.
  • high-quality services when provision of high-quality services is selected, high-quality services can be simply provided through only an analysis of enhancement layer PSI information without need to analyze base layer PSI information.
  • the operation of extracting information required for an enhancement layer can be simplified by not performing a process of analyzing the base layer PSI information.
  • FIG. 4 is a block diagram for illustrating a media system encoding and multiplexing method performed in an encoding unit, according to another embodiment of the present invention.
  • the media system encoding and multiplexing method illustrated in FIG. 4 is the same as that illustrated in FIG. 3 in terms of synchronization, and is different therefrom in that a base layer and an enhancement layer share a single IOD generator, a single OD/BIFS generator, and a section generator.
  • IOD, OD, and BIFS which are additional data transmitted from a transmission side, are transmitted through only a base layer so that a terminal extracts ESs for two layers (i.e., a base layer and an enhancement layer) and constructs a scene by using the extracted ESs, thereby increasing transmission efficiency.
  • IOD, OD, and BIFS which are relatively small amounts of data required for the two layers, are transmitted through only a single channel (i.e., a base layer channel), overhead generated due to packetization performed in each stage can be reduced.
  • FIG. 5 is a block diagram of a receiving device that performs a decoding and de-multiplexing method corresponding to the encoding and multiplexing method illustrated in FIG. 3, according to one embodiment of the present invention.
  • a base layer stream and an enhancement layer stream received via a single transmission channel or different transmission channels due to hierarchical modulation or the like are decoded by corresponding channel decoders. Then, the decoded base layer stream is divided into section data and PES streams by a base layer TS demultiplexer 510, and the decoded enhancement layer stream is divided into section data and PES streams by an enhancement layer TS demultiplexer 511.
  • synchronization between streams inferred from an identical time clock can be achieved based on the value of a PCR inserted into an audio TS packet which is transmitted at relatively regular intervals.
  • FIG. 6 is a flowchart illustrating the decoding and de-multiplexing method performed in the receiving device of FIG. 5.
  • program map table (PMT) information included in the PAT is interpreted in order to search for a PMT from a base layer TS.
  • the found PMT is interpreted in order to extract a relation table that shows identifiers ESJD of various types of ESs and packet identifiers (PIDs).
  • TS packets of different types are separated from each other by referring to corresponding PIDs according to the extracted relation table, and then ES information is extracted from each of the separated TS packets. Then, ODs included in the ES information are interpreted so as to write a list of related information about each object and each ES.
  • an enhancement layer TS packet is extracted simultaneously with initial extraction of a base layer TS packet, and synchronization between the base layer TS packet and the enhancement layer TS packet is primarily performed.
  • operation S650 includes S651 through S654, similar to operation S640 performed when basic services are provided, a PAT and a PMT which are transmitted in the enhancement layer TS packet are interpreted, and thus each type of ES transmitted via an enhancement layer channel is extracted and a list of information about each object and each ES is written.
  • the extracted ESs (e.g., a video ES, an audio ES, and a data ES) from a base layer and an enhancement layer are combined with related information about the extracted ESs. Thereafter, in operations S670 and S680, a video and/or audio stream is decoded and constructs a scene before the data is reproduced.
  • FIG. 7 illustrates a receiving device that performs a decoding and de-multiplexing method according to another embodiment of the present invention, when information such as IOD, OD/BIFS, etc., is inserted into the bitstream and transmitted through one of a base layer and an enhancement layer.
  • the decoding and de-multiplexing method performed in the receiving device illustrated in FIG. 7 corresponds to the encoding and multiplexing method illustrated in FIG. 4.
  • the receiving device illustrated in FIG. 7 is different from the receiving device according to the first embodiment illustrated in FIG. 5 in that a section interpreter for interpreting enhancement layer IOD and OD/BIFS information is not included and information about an enhancement layer is incorporated into a PSI section for a base layer and transmitted. Accordingly, the receiving device illustrated in FIG. 7 extracts the enhancement layer IOD and OD/BIFS information from the base layer PSI section and transmits the extracted information to a scene construction unit.
  • FIG. 8 is a flowchart illustrating the decoding and de-multiplexing method performed in the receiving device of FIG. 7.
  • the decoding and de-multiplexing method illustrated in FIG. 8 is the same as that illustrated in FIG. 6.
  • the decoding and de-multiplexing method illustrated in FIG. 8 is different from that illustrated in FIG. 6 in that interpretations of a PMT and an OD are performed for only the base layer and pieces of information about the two layers are simultaneously extracted based on the interpretations and thus only incorporation of different types of ESs is performed.
  • both a mapping relationship between base layer streams and a mapping relationship between enhancement layer streams are added to a first loop and a second loop and described therein.
  • a receiving terminal extracts corresponding packets from a base layer MPEG-2 TS and an enhancement layer MPEG-2 TS by using the added mapping relationships.
  • an OD stream is also transmitted through only the basic layer, and an ES Descriptor described to construct a scene is additionally inserted into the base layer MPEG-2 TS so as to describe both a video ES, an audio ES, and a data ES for a base layer and a video ES, an audio ES, and a data ES for an enhancement layer.
  • a PCR may be inserted into an audio TS packet that is generated by a relatively small amount and at relatively regular intervals. Accordingly, even a PTS and an OCR may be inserted into only an audio stream
  • FIG. 9 illustrates a decoding and de-multiplexing method according to another embodiment of the present invention.
  • a PMT is made up of two types of loops, namely, first and second loops 910 and
  • the first loop 910 is made up of ES_Descriptors including contents about a scene description and an object description, and the second loop 920 maps PIDs,
  • both the mapping relationship between base layer streams and the mapping relationship between enhancement layer streams are added to the two loops and described therein.
  • the receiving device extracts corresponding packets from a base layer MPEG-2 TS and an enhancement layer MPEG-2 TS by using the added mapping relationships.
  • an OD stream is also transmitted through only a base layer channel, and an ES_Descriptor described to construct a scene is additionally inserted into the base layer MPEG-2 TS so as to describe both a video ES, an audio ES, and a data ES for a base layer and a video ES, an audio ES, and a data ES for an enhancement layer.
  • FIG. 10 illustrates an MPEG-4 OD according to an embodiment of the present invention.
  • a base layer stream and an enhancement layer stream may be defined as different ODs. However, in the present embodiment, two ES descriptors for a base layer and an enhancement are included in a single OD in a subordinate relationship.
  • This subordinate relationship may be expressed using "StreamDependanceFlag” and "dependsOn_ES_ID” of an MPEG-4 ES descriptor.
  • a location of an ES is designated using URL FIag in order to express that the ES itself exists in an enhancement layer.
  • a conventional terminal that recognizes only a base layer fails to recognize "ObjectTypelndication” information for an enhancement layer and thus secures compatibility.
  • a terminal for high-quality multimedia services according to the present invention recognizes the existence of a dependent stream and "ObjectTypelndication” information and thus also properly receives an enhancement layer stream.
  • FIG. 11 is a block diagram of a transmission device 1100 for providing high-quality multimedia services in a DMB transmission system, according to an exemplary embodiment of the present invention.
  • the transmission device 1100 includes an encoding unit 1110, an SL packet transform unit 1120, a PES packet transform unit 1130, and a TS multiplexing unit 1140.
  • the encoding unit 1110 separates input multimedia contents into a base layer ES and an enhancement layer ES and encodes the base layer ES and the enhancement layer ES.
  • the SL packet transform unit 1120 transforms the base layer ES and the enhancement layer ES into a base layer SL packet and an enhancement layer SL packet and performs synchronization between the base layer SL packet and the enhancement layer SL packet.
  • the PES packet transform unit 1130 transforms the base layer SL packet and the enhancement layer SL packet into a base layer PES packet and an enhancement layer PES packet and performs synchronization between the base layer PES packet and the enhancement layer PES packet.
  • the SL packet transform unit 1120 performs synchronization by inserting time stamp information into the base layer SL packet and the enhancement layer SL packet by using OCR which is ascertained based on an identical STC.
  • the PES packet transform unit 1130 performs synchronization by inserting time stamp information into the base layer PES packet and the enhancement layer PES packet by using the PCR which is ascertained based on an identical STC. For example, the SL packet transform unit 1120 inserts a CTS as the time stamp information, and the PES packet transform unit 1130 inserts a PTS as the time stamp information.
  • the TS multiplexing unit 1140 multiplexes the PES packets according a base layer TS and an enhancement layer TS so as to generate TS packets. At this time, the TS multiplexing unit 1140 performs synchronization by inserting PCRs into the TS packets according to the base layer ES and the enhancement layer ES or by using an identical STC in the base layer ES and the enhancement layer ES.
  • FIG. 12 is a block diagram of a reception device for providing high-quality multimedia services in a DMB transmission system, according to an exemplary embodiment of the present invention.
  • the receiving device includes a quality selection unit 1210, a decoding unit 1220, a TS de-multiplexing unit 1230, a PES de-packet transform unit 1240, and an SL de-packet transform unit 1250.
  • the quality selection unit 1210 determines, based on a selection of a user, whether only a base layer stream is to be received or both the base layer stream and an enhancement layer stream are to be received.
  • the decoding unit 1220 decodes the base layer stream and the enhancement layer stream so as to obtain TS packets.
  • the TS de-multiplexing unit 1230 demultiplexes the TS packets so as to obtain PES packets, and performs synchronization between the PES packets.
  • the F 1 ES de-packet transform unit 1240 decodes the PES packets obtained by the TS de-multiplexing unit 1230 so as to obtain SL packets, and performs synchronization between the SL packets.
  • the SL de-packet transform unit 1250 multiplexes the SL packets according to the base layer ES and the enhancement layer
  • the invention can also be embodied as computer readable codes on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data which can be thereafter read by a computer system. Examples of the computer readable recording medium include read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and carrier waves (such as data transmission through the Internet).
  • the computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.
  • the computer-readable media can distribute, sore and execute computer-readable codes in embedded-systems connected via a wireless network such as a sensor node.

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Abstract

Cette invention concerne un dispositif de transmission et un dispositif de réception pour permettant d'obtenir des services multimédia haute qualité dans un système de transmission de radiodiffusion multimédia numérique (DMB). Le dispositif de transmission sépare les contenus multimédia entrés en un flux élémentaire de couche de base et un flux élémentaire de couche d'amélioration, il décode le flux élémentaire de couche de base et le flux élémentaire de couche d'amélioration, les transforme en un paquet SL de couche de base et en paquet SL de couche d'amélioration, transforme le paquet SL de couche de base et le paquet SL de couche d'amélioration en un paquet PES de couche de base et un paquet PES de couche d'amélioration, puis il multiplexe le paquet PES de couche de base et le paquet PES de couche d'amélioration d'après le flux élémentaire de couche de base et le flux élémentaire de couche d'amélioration puis il produit un paquet TS de couche de base et un paquet TS de couche d'amélioration.
PCT/KR2008/002516 2007-05-04 2008-05-02 Procédé et appareil permettant d'obtenir un service multimédia haute qualité dans un système de transmission de radiodiffusion multimédia numérique (dmb) WO2008136623A1 (fr)

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CN2008800231475A CN101690200B (zh) 2007-05-04 2008-05-02 用于在数字多媒体广播系统中提供高质量多媒体服务的方法和设备

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010074399A3 (fr) * 2008-12-22 2010-08-19 Electronics And Telecommunications Research Institute Appareil et procédé pour le multiplexage et le démultiplexage basé sur la diffusion multimédia numérique
WO2011097754A1 (fr) * 2010-02-11 2011-08-18 上海贝尔股份有限公司 Procédé et dispositif de transmission pour flux de codage évolutif dans un réseau relais
EP2400748A2 (fr) * 2009-02-03 2011-12-28 Electronics and Telecommunications Research Institute Procédé de transmission, appareil de transmission, procédé de réception et appareil de réception pour un service de diffusion multimédia numérique
US8971417B2 (en) 2010-08-19 2015-03-03 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding multilayer videos
WO2015052636A1 (fr) 2013-10-07 2015-04-16 Ericsson Television Inc. Sauvegardes d'un enregistreur vidéo personnel en réseau avec codage vidéo à échelle variable
CN105025309A (zh) * 2009-06-16 2015-11-04 Lg电子株式会社 广播发射机及其3d视频数据处理方法
CN107197390B (zh) * 2017-05-27 2019-11-12 上海东方明珠广播电视研究发展有限公司 无线信号发射系统、方法、信号接收处理方法及终端

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368468B1 (ko) * 2010-02-10 2014-03-03 한국전자통신연구원 방송 신호 송수신 장치 및 방법
CN102480634B (zh) * 2010-11-24 2015-12-16 中兴通讯股份有限公司 移动多媒体广播中分级业务同步的方法、设备和系统
WO2013108954A1 (fr) * 2012-01-20 2013-07-25 전자부품연구원 Procédé de transmission et de réception d'informations de configuration de programme pour service de vidéo à ultra-haute définition extensible dans un environnement de transmission hybride, et procédé et appareil pour transmettre efficacement des informations de couche scalaires
JP6505413B2 (ja) * 2013-11-08 2019-04-24 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 送信方法、受信方法、送信装置、及び受信装置
KR101656193B1 (ko) * 2015-08-11 2016-09-22 서울여자대학교 산학협력단 이기종 망에서의 uhd 비디오 전송을 위한 mmt 기반 방송 시스템 및 방법
US10931980B2 (en) 2016-07-19 2021-02-23 Electronics And Telecommunications Research Institute Method and apparatus for providing 360 degree virtual reality broadcasting service
WO2018016879A1 (fr) * 2016-07-19 2018-01-25 한국전자통신연구원 Procédé et dispositif pour fournir un service de diffusion de réalité virtuelle à 360 degrés
WO2018186525A1 (fr) * 2017-04-07 2018-10-11 주식회사 아이리버 Appareil de conversion de signal modulaire ayant une horloge synchronisée, et appareil de traitement de données

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005020576A1 (fr) * 2003-08-20 2005-03-03 Electronics And Telecommunications Research Institute Systeme et procede de radiodiffusion multimedia numerique
WO2006044370A1 (fr) * 2004-10-13 2006-04-27 Thomson Licensing Procede et appareil de codage et de decodage video echelonnable en complexite
KR20060089508A (ko) * 2005-02-04 2006-08-09 한국전자통신연구원 타이밍정보의 효율적 전송을 위한 전송스트림 생성 장치및 그 방법과, 그를 이용한 디엠비 전송 시스템
US20060244840A1 (en) * 1999-12-15 2006-11-02 Amit Eshet Method and system for scalable representation, storage, transmission and reconstruction of media streams

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000078573A (ja) * 1998-09-03 2000-03-14 Hitachi Ltd 階層符号化データ配信装置
US6785330B1 (en) * 1999-08-19 2004-08-31 Ghildra Holdings, Inc. Flexible video encoding/decoding method
US7133449B2 (en) * 2000-09-18 2006-11-07 Broadcom Corporation Apparatus and method for conserving memory in a fine granularity scalability coding system
JP4711681B2 (ja) * 2002-12-04 2011-06-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 階層化メディアビットストリームのパケット化
KR100587324B1 (ko) * 2003-06-14 2006-06-08 엘지전자 주식회사 디지털 멀티미디어 방송 서비스 방법, 송/수신기, 및 데이터 구조
EP1742476A1 (fr) * 2005-07-06 2007-01-10 Thomson Licensing Système et méthode pour le codage et transmission scalable en temps réel de vidéo
US8879857B2 (en) * 2005-09-27 2014-11-04 Qualcomm Incorporated Redundant data encoding methods and device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060244840A1 (en) * 1999-12-15 2006-11-02 Amit Eshet Method and system for scalable representation, storage, transmission and reconstruction of media streams
WO2005020576A1 (fr) * 2003-08-20 2005-03-03 Electronics And Telecommunications Research Institute Systeme et procede de radiodiffusion multimedia numerique
WO2006044370A1 (fr) * 2004-10-13 2006-04-27 Thomson Licensing Procede et appareil de codage et de decodage video echelonnable en complexite
KR20060089508A (ko) * 2005-02-04 2006-08-09 한국전자통신연구원 타이밍정보의 효율적 전송을 위한 전송스트림 생성 장치및 그 방법과, 그를 이용한 디엠비 전송 시스템

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2153645A4 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102326387A (zh) * 2008-12-22 2012-01-18 韩国电子通信研究院 用于基于数字多媒体广播来进行多路复用和解多路复用的设备和方法
WO2010074399A3 (fr) * 2008-12-22 2010-08-19 Electronics And Telecommunications Research Institute Appareil et procédé pour le multiplexage et le démultiplexage basé sur la diffusion multimédia numérique
CN102326387B (zh) * 2008-12-22 2014-07-09 韩国电子通信研究院 用于基于数字多媒体广播来进行多路复用和解多路复用的设备和方法
EP3073746A1 (fr) * 2009-02-03 2016-09-28 Electronics and Telecommunications Research Institute Procédé et appareil de transmission, procédé et appareil de réception pour un service de diffusion multimédia numérique
EP2400748A2 (fr) * 2009-02-03 2011-12-28 Electronics and Telecommunications Research Institute Procédé de transmission, appareil de transmission, procédé de réception et appareil de réception pour un service de diffusion multimédia numérique
CN102405641A (zh) * 2009-02-03 2012-04-04 韩国电子通信研究院 用于数字多媒体广播服务的传送方法、传送设备、接收方法、和接收设备
EP2400748A4 (fr) * 2009-02-03 2013-04-24 Korea Electronics Telecomm Procédé de transmission, appareil de transmission, procédé de réception et appareil de réception pour un service de diffusion multimédia numérique
CN105025309A (zh) * 2009-06-16 2015-11-04 Lg电子株式会社 广播发射机及其3d视频数据处理方法
CN102763450B (zh) * 2010-02-11 2016-05-11 上海贝尔股份有限公司 中继网络中的可分级编码流的传输方法和设备
CN102763450A (zh) * 2010-02-11 2012-10-31 上海贝尔股份有限公司 中继网络中的可分级编码流的传输方法和设备
WO2011097754A1 (fr) * 2010-02-11 2011-08-18 上海贝尔股份有限公司 Procédé et dispositif de transmission pour flux de codage évolutif dans un réseau relais
US8971417B2 (en) 2010-08-19 2015-03-03 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding multilayer videos
EP2606649A4 (fr) * 2010-08-19 2016-05-04 Samsung Electronics Co Ltd Procédé et appareil de codage et de décodage de vidéos multicouches
WO2015052636A1 (fr) 2013-10-07 2015-04-16 Ericsson Television Inc. Sauvegardes d'un enregistreur vidéo personnel en réseau avec codage vidéo à échelle variable
EP3056010A4 (fr) * 2013-10-07 2017-04-26 Ericsson AB Sauvegardes d'un enregistreur vidéo personnel en réseau avec codage vidéo à échelle variable
CN107197390B (zh) * 2017-05-27 2019-11-12 上海东方明珠广播电视研究发展有限公司 无线信号发射系统、方法、信号接收处理方法及终端

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CN101690200A (zh) 2010-03-31
EP2153645A4 (fr) 2011-07-27
CN101690200B (zh) 2012-06-20

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