WO2011122914A2 - 2차원 컨텐트와 3차원 컨텐트를 제공하기 위한 디지털 방송 컨텐트 전송 방법 및 그 장치, 디지털 방송 컨텐트 수신 방법 및 그 장치 - Google Patents
2차원 컨텐트와 3차원 컨텐트를 제공하기 위한 디지털 방송 컨텐트 전송 방법 및 그 장치, 디지털 방송 컨텐트 수신 방법 및 그 장치 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
- H04N21/2353—Processing of additional data, e.g. scrambling of additional data or processing content descriptors specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/178—Metadata, e.g. disparity information
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/183—On-screen display [OSD] information, e.g. subtitles or menus
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/194—Transmission of image signals
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47214—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
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- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
Definitions
- the present invention relates to a method of transmitting and receiving digital broadcast content for providing two-dimensional content or three-dimensional content.
- the broadcast reception device may provide additional information on a program or a channel by displaying electronic program guide (EPG) information along with a video while reproducing video information and audio information provided through a broadcast program.
- EPG electronic program guide
- the digital broadcast transmission system transmits additional information about a program or a channel in simple text form together with a stream of a broadcast program.
- the digital TV configures an EPG screen by using additional information on a program or channel received together with a broadcast program. The viewer can use the EPG screen to obtain information about the current channel or the current program, and select and switch the channel or program.
- the present invention is to provide a variety of information about the digital broadcast content that provides two-dimensional content or three-dimensional content by using the electronic program guide of the digital broadcasting system, the user to effectively use the electronic program guide.
- a method for transmitting digital broadcast content for providing two-dimensional content or three-dimensional content includes: encoding a content including at least one of the two-dimensional content and three-dimensional content, and encoding the content. Generating an elementary stream including the generated data; 2D / 3D content identification information for indicating a reproduction method of the 2D content or 3D content, the 2D content and the 3D in service additional information including EPG (Electronic Program Guide) information of the digital broadcast content.
- EPG Electronic Program Guide
- FIG. 1 is a block diagram of an apparatus for transmitting digital broadcast content according to an embodiment.
- FIG. 2 is a block diagram of an apparatus for receiving digital broadcast content according to an embodiment.
- PSIP Program Specific Information Protocol
- ATSC Advanced Television System Committee
- FIG. 4 illustrates a transmission structure of digital broadcast content according to a digital video broadcasting (DVB) scheme.
- DVD digital video broadcasting
- SI service information
- FIGS 6, 7, 8, 9 and 10 show, among the ATSC system PSIP information, Terrestrial Virtual Channel Table (TVCT) information, Event Information Table (EIT) information, Extended Text Table (ETT) information, and RRT (Rating Region Table) information.
- EIT Event Information Table
- ETT Extended Text Table
- RRT Rapping Region Table
- FIG. 11 illustrates a screen on which EPG (Electronic Program Guide) information is displayed based on TVCT information, RRT information, ETT information, EIT information, and STT information among PSIP information of the ATSC system.
- EPG Electronic Program Guide
- BU Busquet Association Table
- NIT Network Information Table
- SDT Service Description Table
- EIT Event Information Table
- 16 is a schematic diagram of an operation of reproducing broadcast content and an EPG screen by a digital broadcast content receiving apparatus according to an embodiment using service additional information.
- FIG. 17 is a diagram illustrating an operation of displaying, by a digital broadcasting content receiving apparatus 1600, 3D broadcast content and a 3D EPG screen using service additional information, according to an exemplary embodiment.
- 19 shows a table of syntax of a service list descriptor and service type information of a service list descriptor among descriptors of BAT information and NIT information.
- 20 and 21 illustrate an association relationship between two-dimensional content and three-dimensional content in a service unit, and an association relationship between two-dimensional content and three-dimensional content in an event unit, according to an exemplary embodiment.
- FIG. 22 illustrates 2D / 3D content link information of a service unit according to an association between a 2D service and a 3D service, according to an exemplary embodiment.
- FIG. 23 illustrates 2D / 3D content link information of an event unit according to a correlation between a 2D event and a 3D event, according to an exemplary embodiment.
- 24 is a diagram illustrating an EPG screen on which 3D content is displayed using 2D / 3D content identification information or 2D / 3D content link information according to an embodiment.
- FIG. 25 illustrates an EPG screen and a general EPG screen that support channel hopping between 3D channels implemented using 2D / 3D content identification information or 2D / 3D content link information according to an embodiment.
- FIG. 26 illustrates an EPG screen for a 3D channel implemented based on 2D / 3D content link information inserted in NIT information according to an embodiment.
- FIG. 27 illustrates a method of implementing channel hopping between three-dimensional channels using 2D / 3D content identification information or 2D / 3D content link information inserted as a descriptor of BAT information according to an embodiment.
- FIG. 28 is a flowchart of an associated channel determination method for 3D content transmission of the apparatus 100 for transmitting digital broadcast content according to an embodiment.
- VSB Very Side Band
- TPS Transmission Parameter Signaling
- 31 shows a structure of L1 signaling data according to a DVB scheme.
- 32 and 33 illustrate signaling fields of L1 pre-signalling data and L1 post-signalling data.
- 34 and 35 illustrate a case in which an associated channel of a current channel is not adjacent to each other, according to an exemplary embodiment.
- 36 is a flowchart of a method of transmitting digital broadcast content according to an embodiment.
- FIG. 37 is a flowchart of a method of receiving digital broadcast content according to an embodiment.
- a method for transmitting digital broadcast content for providing two-dimensional content or three-dimensional content includes: encoding a content including at least one of the two-dimensional content and three-dimensional content, and encoding the content. Generating an elementary stream including the generated data; 2D / 3D content identification information for indicating a reproduction method of the 2D content or 3D content, the 2D content and the 3D in service additional information including EPG (Electronic Program Guide) information of the digital broadcast content.
- EPG Electronic Program Guide
- the generating of the service additional information may include selecting among the 2D / 3D content identification information, the 2D / 3D content link information, and the EPG 3D reproduction information of the current content for each service unit or event unit of the digital broadcast content. Determining at least one and inserting it into the service additional information.
- the digital broadcasting content transmission method may further include determining an association channel for transmitting the associated three-dimensional content associated with the current content transmitted through the current channel, wherein the generating of the service additional information comprises: And inserting 3D channel combining information indicating information about a coupling relationship between the current channel and the associated channel, into the service additional information.
- a method for receiving digital broadcast content for providing 2D content or 3D content includes encoding of content including at least one of the 2D content and 3D content from a received transport stream. Demultiplexing an elementary stream including the extracted data and service additional information on the digital broadcast content; From the service additional information, EPG information for constructing an EPG screen of the digital broadcast content, 2D / 3D content identification information indicating a reproduction method of the 2D content or the 3D content, the 2D content and the 3D content Extracting at least one of 2D / 3D content link information indicating a correlation between the EPG 3D content and the EPG 3D reproduction information for reproducing the EPG screen in three dimensions; Restoring the content by extracting and decoding encoded data of the content from the elementary stream; And reproducing the restored content in two or three dimensions and reproducing an EPG screen based on at least one of the 2D / 3D content identification information, 2D / 3D content link information, and the EPG 3D reproduction information. .
- the extracting of the service additional information may include the 2D / 3D content identification information, 2D / 3D content link information, and the 2D / 3D content identification information for the current content for each service unit or event unit of the digital broadcasting content. And extracting at least one of EPG 3D reproduction information, wherein the reproducing step includes, based on the 2D / 3D content identification information, whether the current content is the 2D content or the 3D content on the EPG screen. It may include the step of displaying.
- the digital broadcasting content receiving method may further include information on a coupling relationship between an association channel for transmitting related three-dimensional content associated with a current content transmitted through the current channel and the current channel from the service additional information. Extracting 3D channel combining information indicating a; And detecting the associated channel based on the 3D channel combining information.
- an apparatus for transmitting digital broadcasting content for providing two-dimensional content or three-dimensional content may encode a content including at least one of the two-dimensional content and three-dimensional content, and encode the content.
- An elementary stream generator for generating an elementary stream including data;
- the service additional information including the EPG information of the digital broadcast content, 2D / 3D content identification information for indicating a reproduction method of the 2D content or 3D content, and the correlation between the 2D content and the 3D content
- a service additional information generation unit for inserting at least one of 2D / 3D content link information indicating and EPG 3D reproduction information for reproducing the EPG screen on which the EPG information is displayed in three dimensions;
- a transport stream generator for generating a transport stream by multiplexing the base stream and the service additional information.
- the apparatus for transmitting digital broadcast content may determine an association channel for transmitting associated three-dimensional content associated with current content transmitted through a current channel, and the service additional information generator may be configured to associate the current channel with the current channel.
- 3D channel combining information indicating information about a coupling relationship between channels may be further inserted into the service additional information.
- an apparatus for receiving digital broadcast content for providing two-dimensional content or three-dimensional content includes: encoding a content including at least one of the two-dimensional content and three-dimensional content from a received transport stream; A transport stream demultiplexer configured to demultiplex a base stream including data and service additional information about the digital broadcast content; From the service additional information, EPG information for constructing an EPG screen of the digital broadcast content, 2D / 3D content identification information indicating a reproduction method of the 2D content or the 3D content, the 2D content and the 3D content A service additional information extracting unit which extracts at least one of 2D / 3D content link information indicating a correlation between the EPG 3D reproduction information and 3D reproduction information for reproducing the EPG screen in three dimensions; A content reconstruction unit for reconstructing the content by extracting and decoding encoded data of the content from the elementary stream; And a playback unit that reproduces the restored content in two or three dimensions and reproduces an EPG screen based on at least one of the 2D
- the service additional information extractor may include information about a coupling relationship between an associated channel for transmitting related 3D content associated with current content transmitted through the current channel and the current channel, from the service additional information.
- the apparatus may further extract 3D channel combining information indicating, and the playback unit may detect and play the associated channel based on the 3D channel combining information and reproduce the same with the current content.
- a digital broadcast content transmission apparatus for providing two-dimensional content or three-dimensional content, the content containing at least one of the two-dimensional content and three-dimensional content, and encoding the content
- An elementary stream generator configured to generate an elementary stream including the corrected data; Determining an association channel to transmit associated 3D content associated with the current content transmitted through the current channel, and inserting 3D channel combining information indicating service association information between the current channel and the associated channel into the service additional information.
- a service additional information generator and a transport stream generation unit configured to multiplex the base stream and the service additional information to generate a transport stream, and to transmit the transport stream through the current channel and the associated channel.
- an apparatus for receiving digital broadcast content for providing 2D content or 3D content includes encoding of content including at least one of the 2D content and 3D content from a received transport stream.
- a transport stream demultiplexer for demultiplexing an elementary stream including the collected data and service additional information on the digital broadcast content; Extracting service additional information extracting, from the service additional information, 3D channel combining information indicating information on a coupling relationship between an associated channel for transmitting associated 3D content associated with current content transmitted through the current channel and the current channel.
- a content restoring unit for extracting and decoding encoded data of the content from the elementary stream to restore the current content and the associated 3D content; And a playback unit which detects the associated channel and reproduces the restored current content and associated three-dimensional content in three dimensions based on the 3D channel combining information.
- the present invention includes a computer-readable recording medium having recorded thereon a program for realizing a digital broadcasting content transmission method according to an embodiment.
- the present invention includes a computer-readable recording medium having recorded thereon a program for realizing a digital broadcasting content receiving method according to an embodiment.
- FIGS. 1 to 37 A method of receiving and playing back digital broadcast content and various embodiments of a digital broadcast content receiving apparatus implementing the same are described in detail.
- One network is a set of transport streams transmitted by multiplexing by a single stream transport system.
- a collection of all digital channels in a particular cable broadcasting system is referred to as one network.
- a service unit refers to a channel of a predetermined frequency band in which content of digital broadcasting is transmitted.
- an event unit refers to an individual broadcast program.
- FIG. 1 is a block diagram of an apparatus for transmitting digital broadcast content according to an embodiment.
- the apparatus for transmitting digital broadcast content 100 includes a basic stream generator 110, a service additional information generator 120, and a transport stream generator 130.
- the apparatus for transmitting digital broadcast content 100 according to an embodiment generates a transport stream of digital broadcast content providing 2D content or 3D content and transmits the same through a channel.
- the 2D content or the 3D content transmitted by the digital broadcast content transmission apparatus 100 may include at least one of a video component, an audio component, and a data component.
- the basestream generator 110 encodes a content including at least one of two-dimensional content and three-dimensional content, and generates a basic stream including encoded data of the content.
- the service additional information generator 120 determines 3D content service additional information required to smoothly reproduce 3D broadcast content in 3D.
- the service additional information generating unit 120 may provide additional information for transmitting / receiving 3D broadcast content and using the electronic program guide (EPG) information of the digital broadcast content to reproduce 2D content or 3D content.
- EPG electronic program guide
- the service additional information generator 120 generates service additional information that includes additional information and detailed information about the digital broadcast content. For example, if the digital broadcasting system conforms to the Advanced Television System Committee (ATSC) scheme, the service additional information generator 120 according to an embodiment may generate Program Specification Information Protocol (PSIP) information. When the digital broadcasting system uses a DVB (Digital Video Broadcasting) scheme, the service additional information generator 120 according to an embodiment may generate service information (SI) information.
- PSIP Program Specification Information Protocol
- DVB Digital Video Broadcasting
- the service additional information generation unit 120 may provide service additional information including additional information for transmitting and receiving 3D broadcast content in order to support the receiving end of the digital broadcast content to 3D reproduce the 3D content. Can be generated.
- the service additional information generator 120 determines 2D / 3D content identification information of the current content for each service unit or event unit of the digital broadcast content, and uses the service additional information to determine a service unit or an event unit. 2D / 3D content identification information may be transmitted every time.
- the 2D / 3D content identification information may indicate whether the content of the current service unit or the current event unit is one of 2D content, 2D / 3D mixed content, and 3D content additional configuration information. Can be.
- the 3D content additional configuration information may be used to convert 2D content into 3D content in order to convert depth / deformation information, binocular disparity information, additional view video data, additional view video data and depth / deformation information, additional view video data and both eyes. It may include at least one of the combination of parallax information.
- the service additional information generating unit 120 may include 2D / 3D content according to an embodiment of information including EPG information configuring an EPG screen among PSSC information of the ATSC system or SI information of the DVB system. At least one of identification information, 2D / 3D content link information, EPG 3D reproduction information, and 3D channel combining information may be inserted.
- the service additional information generator 120 may transmit 2D / 3D content identification information using VCT (Virtual Channel Table) information among PSIP information. have.
- VCT Virtual Channel Table
- the service additional information generator 120 may additionally allocate 3D content service information to service type information in the VCT information.
- the service additional information generator 120 may determine a descriptor including 2D / 3D content identification information and insert the descriptor in the descriptor field of the service among the VCT information.
- the service additional information generator 120 may include at least one of service description table (SDT) information and event information table (EIT) information among SI information. 2D / 3D content identification information may be inserted.
- SDT service description table
- EIT event information table
- the service additional information generator 120 may insert 2D / 3D content identification information into a reserved bit of the SDT information.
- the service additional information generation unit 120 may determine a descriptor including 2D / 3D content identification information and insert the descriptor in the descriptor field of the current service unit in the SDT information.
- the service additional information generator 120 may determine a descriptor including 2D / 3D content identification information and insert the descriptor in the descriptor field of the current event unit among the EIT information.
- the service additional information generator 120 may further allocate a 3D content type to at least one of component type information and stream content information of a component descriptor among SDT information or EIT information.
- 2D / 3D content identification information may be inserted in the spare area of the component descriptor among the SDT information or the EIT information.
- the service additional information generator 120 may further allocate a 3D content type to the content genre information among the SDT information or the EIT information.
- the service additional information generator 120 determines 2D / 3D content link information of the current content for each service unit or event unit of the digital broadcast content, and uses the service additional information to determine a service unit or an event unit. 2D / 3D content link information may be transmitted every time.
- the 2D / 3D content link information may include information on related 3D content associated with the current content.
- the information on the associated 3D content may include information on whether the associated 3D content of the current content exists in the current stream, information indicating whether 2D content and 3D content are simultaneously transmitted, and association 3 And information indicating whether the dimensional content is original 3D content data or 3D content additional configuration information, and 3D content format information of the associated 3D content.
- the information on the associated 3D content according to an embodiment may include information about the transmission type of the associated 3D content.
- the information on the transmission type of the associated 3D content according to an embodiment may indicate that the associated 3D content is transmitted through one of the same channel, another channel, a download service, and a non-real time (NRT) service interworking.
- NRT non-real time
- the service additional information generator 120 may insert 2D / 3D content link information into VCT information among PSIP information. For example, the service additional information generator 120 may insert 2D / 3D content link information in the spare area of the VCT information. In addition, the service additional information generator 120 according to an embodiment may determine a descriptor including 2D / 3D content link information and insert the descriptor in the descriptor field of the service among the VCT information.
- the service additional information generation unit 120 may include SDT information, EIT information, BU (Bouquet Association Table) information, and Network Information Table (NIT). ) 2D / 3D content link information may be transmitted using at least one of the information.
- the service additional information generator 120 may determine a descriptor including 2D / 3D content link information and insert the descriptor in the descriptor field of the service among the SDT information.
- the service additional information generator 120 may further allocate a 3D content service type to service type information from among a service list descriptor among BAT information or NIT information. According to an embodiment, the service additional information generator 120 determines a descriptor including 2D / 3D content link information for content that is a 3D content service type and adds the descriptor to a descriptor field for a service of BAT information or NIT information. Can be inserted. In addition, the service additional information generator 120 according to an embodiment may insert 2D / 3D content link information in a descriptor field for content association relationship among BAT information and NIT information.
- the service additional information generating unit 120 determines EPG 3D reproduction information on the current content, and uses one of a channel unit, a network unit, a service unit, or an event unit of digital broadcasting content by using the service additional information. Can transmit per unit.
- the EPG 3D playback information may include at least one of information indicating a location of an EPG screen in a left view image and a right view image, and information on whether to play the current content in two dimensions during the 3D playback of the EPG screen. It may include.
- the information indicating the position of the EPG screen in the left view image and the right view image may include at least one of coordinates of the EPG screen in the left view image and the right view image, a movement amount from the original position, depth information, and shift information. It may include.
- the service additional information generator 120 determines a descriptor including EPG 3D reproduction information, and may include VCT information, EIT information, and RRT among PSIP information. It may be inserted into a descriptor field of at least one piece of information from the rating region table information and the system time table information.
- the service additional information generation unit 120 uses the identification information of the extended text message from the extended text table (ETT) information among the PSIP information, and the EPG to the VCT information or the EIT information associated with the ETT information. 3D reproduction information may also be transmitted.
- ETT extended text table
- the service additional information generator 120 may include an EPG 3D in a descriptor field of at least one of NIT information, SDT information, and EIT information in SI information.
- a descriptor containing the reproduction information can be inserted.
- the apparatus for transmitting digital broadcast content 100 may determine an associated channel for transmitting associated 3D content associated with current content transmitted through a current channel.
- the service additional information generation unit 120 may transmit 3D channel combining information indicating information on a coupling relationship between a current channel and an associated channel using the service additional information.
- the 3D channel combining information may include information indicating whether a plurality of channels combined with each other are used, information indicating whether a current channel is a primary channel or an additional channel, information on a bandwidth size, and an associated channel being a current channel. At least one of the information indicating whether or not the adjacent channel of, and the information indicating the position of the associated channel.
- the information indicating the position of the association channel may indicate whether the association channel is the previous channel or the next channel of the current channel. If the associated channel is not an adjacent channel of the current channel, the information indicating the position of the associated channel according to an embodiment may indicate a frequency value of the associated channel.
- the service additional information generator 120 may insert 3D channel combining information into a spare area of a current VSB data field synchronization signal.
- the service additional information generator 120 when digital broadcast content is provided based on a DVB scheme, may perform 3D on at least one of a spare area of current TPS information and a spare area of L1 signaling data. Channel combining information can be inserted.
- the service additional information generator 120 determines a descriptor including 3D channel combining information, and may include PMT (Program Map Table) information or VCT. Can also be inserted into the descriptor field of the information.
- PMT Program Map Table
- the service additional information generation unit 120 adds a channel combining service type to the association type information of the NIT information or the service type information of the SDT information. Can be assigned.
- the service additional information generator 120 may insert a descriptor including 3D channel combining information into a descriptor field of NIT information or SDT information.
- the transport stream generator 130 multiplexes the transport stream by multiplexing the base stream generated by the base stream generator 110 and the service additional information generated by the service additional information generator 120.
- Create The transport stream generator 130 according to an embodiment may generate a PES packet by packetizing the elementary stream, and generate a transport stream by multiplexing the PES packet and service additional information. have.
- the transport stream output by the transport stream generator 130 according to an embodiment may be transmitted through a channel.
- FIG. 2 is a block diagram of an apparatus for receiving digital broadcast content according to an embodiment.
- the digital broadcast content receiving apparatus 200 includes a transport stream demultiplexing unit 210, a service additional information extracting unit 220, a content restoring unit 230, and a playback unit 240.
- the apparatus 200 for receiving digital broadcast content receives a transport stream of digital broadcast content for providing 2D content or 3D content, and includes at least one of 2D content and 3D content. Can be restored and reproduced in 2D or 3D according to the reproduction method of the restored content.
- the transport stream demultiplexer 210 receives the transport stream and demultiplexes the service additional information for the base stream and the digital broadcast content from the transport stream.
- An elementary stream includes encoded data of content provided through digital broadcast content.
- the transport stream demultiplexer 210 may demultiplex a transport stream and output PES packets and service additional information.
- the transport stream demultiplexer 210 may depacketize PES packets and output a base stream.
- the service additional information extractor 220 may include 2D / 3D content identification information and 2D / 3D content link information for displaying on an EPG screen from the service additional information output from the transport stream demultiplexer 210. And EPG 3D reproduction information. 2D / 3D content identification information, 2D / 3D content link information, and EPG 3D reproduction information according to an embodiment correspond to information previously determined and transmitted by the digital broadcasting content transmission device 100 according to an embodiment.
- the service additional information extractor 220 may include 2D / 3D content according to an embodiment from information including EPG information constituting an EPG screen among PSSC information of the ATSC or SI information of the DVB. At least one of identification information, 2D / 3D content link information, EPG 3D reproduction information, and 3D channel combining information may be extracted.
- the content reconstruction unit 230 extracts and decodes encoded data of the content from the elementary stream output from the transport stream demultiplexer 210, and reconstructs the content provided through the digital broadcast content. Can be.
- the content reconstruction unit 230 may reconstruct at least one of two-dimensional content and three-dimensional content.
- the reproduction unit 240 restores based on at least one of 2D / 3D content identification information, 2D / 3D content link information, and EPG 3D reproduction information extracted by the service additional information extraction unit 210.
- the reproduced content can be reproduced in two or three dimensions.
- the playback unit 240 may search for the associated three-dimensional content information to reproduce the current content in three dimensions based on at least one of the 2D / 3D content identification information and the 2D / 3D content link information.
- the current content can be played in three dimensions.
- the content reconstruction unit 230 uses the 3D content format information of the 2D / 3D content identification information and the 2D / 3D content link information extracted from the service additional information extraction unit 220, and then 3D content.
- the left view image sequence and the right view image sequence of may be reconstructed.
- the service additional information extractor 210 may extract 2D / 3D content identification information of the current content for each service unit or event unit of the digital broadcast content from the service additional information.
- the playback unit 240 may display whether the current content is 2D content or 3D content on the EPG screen based on the 2D / 3D content identification information.
- the playback unit 240 may include a 3D content of 2D content, 2D / 3D mixed content, and 3D content based on 2D / 3D content identification information. Any of the content addition configuration information may be read to determine a reproduction method of the current content.
- the 3D content additional configuration information may include depth / disparity information, binocular disparity information, additional view video data, a combination of additional view video data and depth / disparity information, and a combination of additional view video data and binocular disparity information. It may include at least one.
- the service additional information extractor 210 may extract 2D / 3D content identification information from the VCT information from the PSIP information when the digital broadcast content is provided based on the ATSC scheme.
- the service additional information extraction 210 may read the 3D content service type from the service type information in the VCT information.
- a descriptor including 2D / 3D content identification information may be extracted from a descriptor field for a service among VCT information according to an embodiment.
- the service additional information extractor 210 extracts 2D / 3D content identification information from at least one of SDT information and EIT information among SI information. Can be.
- the service additional information extractor 210 may extract 2D / 3D content identification information from the spare area from the SDT information. Also, a descriptor including 2D / 3D content identification information may be extracted from a descriptor field of a current service unit among SDT information. The service additional information extractor 210 according to an embodiment may extract a descriptor including 2D / 3D content identification information from the descriptor field for the current event unit among the EIT information.
- the service additional information extractor 210 may read 3D content service information from at least one of component type information and stream content information of a component descriptor among SDT information or EIT information.
- the service additional information extractor 210 may extract 2D / 3D content identification information from the spare area of the component descriptor among the SDT information or the EIT information.
- 3D content service information may be read from the content genre information.
- the reproduction unit 240 reads the 2D / 3D content identification information and determines whether the broadcast content is 2D content or 3D content for each of at least one unit of a channel unit, a service unit, and an event unit, The playback method of the broadcast content may be displayed on the EPG screen.
- the service additional information extractor 210 may extract 2D / 3D content link information of the current content for each service unit or event unit of the digital broadcast content from the service additional information.
- the reproduction unit 240 may detect the associated 3D content associated with the current content based on the 2D / 3D content link information and reproduce the 3D content together in 3D.
- the playback unit 240 may read related information about the 3D content of the current content from the 2D / 3D content link information and detect the related 3D content. From the information on the associated three-dimensional content according to an embodiment, the information on whether the associated three-dimensional content exists in the current stream, the information indicating whether the two-dimensional and three-dimensional content is transmitted at the same time, the associated three-dimensional content At least one of the information indicating whether the 3D content data or the 3D content additional configuration information and the 3D content format information of the associated 3D content may be read and used to detect the related 3D content.
- the playback unit 240 may read information about a transmission type of the related 3D content from the information about the related 3D content, according to an exemplary embodiment. Based on the information on the transmission type of the associated 3D content according to an embodiment, it may be read that the associated 3D content is transmitted through one of the same channel, another channel, a download service, and an NRT service interworking.
- the service additional information extractor 210 may extract 2D / 3D content link information from VCT information among PSIP information when digital broadcast content is provided based on an ATSC scheme.
- 2D / 3D content link information may be extracted from the spare area among the VCT information.
- a descriptor including 2D / 3D content link information may be extracted from a descriptor field for a service among VCT information.
- the service additional information extractor 210 may include 2D / 3D information from at least one of SDT information, EIT information, BAT information, and NIT information among SI information. Content link information may be extracted.
- a descriptor including 2D / 3D content link information may be extracted from a descriptor field for a service among SDT information and EIT information.
- the service additional information extractor 210 may read the 3D content service type from the service type information among the service list descriptors of the BAT information or the NIT information.
- the service additional information extractor 210 reads from the service list descriptor that the current service type is a 3D content service type, the 2D / 3D content link information from the descriptor field for the service of the BAT information or the NIT information. Descriptor including can be extracted.
- the service additional information extractor 210 may extract 2D / 3D content link information from a descriptor field for an association between content among BAT information and NIT information.
- the identification information of the current content or the identification information of the related content may be extracted from the 2D / 3D content link information according to an embodiment, the content reproduction method may be displayed on the EPG screen. Also, a 3D channel dedicated EPG screen composed of only 3D channels may be configured based on the identification information about the content.
- the service additional information extractor 210 extracts EPG 3D reproduction information on the current content for each unit of a channel unit, a network unit, a service unit, and an event unit of the digital broadcast content from the service additional information. Can be.
- the playback unit 240 may reproduce the EPG screen in three dimensions based on the EPG 3D playback information.
- the playback unit 240 may include, from the EPG 3D playback information, information indicating the position of the EPG screen in the left view image and the right view image, and whether the current content is reproduced in two dimensions during the three-dimensional reproduction of the EPG screen. At least one of information about may be read.
- the information indicating the position of the EPG screen may include at least one of coordinates of the EPG screen, movement amount from the original position, depth information, and shift information in the left view image and the right view image.
- the playback unit 240 may display the EPG screen on the left view image and the right view image based on the information indicating the position of the EPG screen in the left view image and the right view image.
- the service additional information extractor 210 may include a descriptor field of at least one of VCT information, EIT information, RRT information, and STT information among PSIP information.
- the descriptor including the EPG 3D reproduction information can be extracted.
- the service additional information extractor 210 may include a descriptor including EPG 3D reproduction information of VCT information or EIT information associated with the ETT information based on identification information of the extended text message of the ETT information among the PSIP information. You can also extract
- the service additional information extractor 210 may include an EPG from a descriptor field of at least one of NIT information, SDT information, and EIT information among SI information. Descriptor including 3D reproduction information can be extracted.
- the apparatus 200 for receiving digital broadcast content extracts, from the service additional information, 3D channel combining information indicating information on a coupling relationship between a current channel and an associated channel, and based on the 3D channel combining information. Can be detected.
- the service additional information extractor 210 may include information indicating whether a plurality of channels combined with each other are used, information indicating whether a current channel is a main channel or an additional channel, and bandwidth from 3D channel combining information. At least one of information on the size, information indicating whether the associated channel is an adjacent channel of the current channel, and information indicating the position of the associated channel may be extracted.
- the apparatus 200 for receiving digital broadcast content may determine that the associated channel is the previous channel or the next channel of the current channel based on the information indicating the position of the associated channel. . In addition, according to an embodiment, the apparatus 200 for receiving digital broadcast content may determine an associated channel by reading a frequency value of the associated channel if the associated channel is not an adjacent channel of the current channel based on information indicating the position of the associated channel. have.
- the service additional information extractor 210 may extract 3D channel combining information from a preliminary region of the field sync signal of the current data segment.
- the service additional information extractor 210 may include 3D channel combining information from at least one of a spare area of current TPS information and a spare area of L1 signaling data. Can be extracted.
- the service additional information extractor 210 may extract a descriptor including 3D channel combining information from the descriptor field of the PMT information and the VCT information when the digital broadcasting content is provided based on the ATSC scheme. have. Also, when the digital broadcast content is provided based on the DVB scheme, the service additional information extractor 210 according to an embodiment reads that the service additional information extractor 210 is a channel combining service from the association type information of the NIT information or the service type information of the SDT information. A descriptor including 3D channel combining information may be extracted from a descriptor field of NIT information or SDT information.
- the apparatus 200 for receiving digital broadcast content searches for the associated 3D content through the associated channel among the reconstructed contents, based on the 3D channel combining information extracted by the service additional information extractor 210.
- the current content of the current channel and the associated 3D content can be reproduced together in 3D.
- the digital broadcast content receiving apparatus 200 may search for an associated channel based on 3D channel combining information, receive only a transport stream transmitted through the associated channel, and restore the associated 3D content, thereby reconstructing the current content. It can also be played in three dimensions together with.
- FIG. 3 shows a hierarchical structure 300 of PSIP information of the ATSC scheme.
- the PSSC information of the ATSC system includes hierarchically configured System Time Table (STT) information 310, RRT (Rating Region Table) information 320, MGT (Master Guide Table) information 330, and VCT (Virtual Channel Guide). Information 340, event information table (EIT) information 350, 352, and 354, and extended text table (ETT) information 360, 362, 364, and 366.
- STT System Time Table
- RRT Raster Region Table
- MGT Master Guide Table
- VCT Virtual Channel Guide
- Information 340 event information table (EIT) information 350, 352, and 354, and extended text table (ETT) information 360, 362, 364, and 366.
- EIT event information table
- ETT extended text table
- STT information 310 contains information on the current date and time.
- the RRT information 320 includes information on broadcast viewing grades of regions of a broadcast program.
- the MGT information 330 contains version, size, and PID (Packet IDentifier) information of other table information except the STT information 310.
- the VCT information 340 contains information about channels to be transmitted. For example, channel tuning information, such as channel number, channel name, carrier frequency, program number, is provided through the VCT information 340.
- the VCT information 340 is referred to as Terrestrial Virtual Channel Table (TVCT) information in a terrestrial digital broadcasting system and referred to as Cable Virtual Channel Table (CVCT) information in a cable digital broadcasting system.
- TVCT Terrestrial Virtual Channel Table
- CVCT Cable Virtual Channel Table
- EIT information 350, 352, and 354 contain brief information about an event, that is, a broadcast program. For example, information such as a name of an event (broadcast program), a broadcast time, etc. is provided through the EIT information 350, 352, and 354.
- the ETT information 360, 362, 364, 366 contains additional textual information about the event. Text messages other than information on channels and events provided using the VCT information 340 and the EIT information 350, 352, and 354 may be provided through the ETT information 360, 362, 364, and 366. have.
- the STT information 310, the RRT information 320, the MGT information 330, and the VCT information 340 are transmitted through a transport packet having a PID information value of 0x1FFB.
- the STT information 310, the RRT information 320, the MGT information 330, and the VCT information 340 may be identified by the table ID information, respectively.
- the MGT information 330 contains PID information 351, 353, 355 of the EIT information 350, 352, and 354 and PID information 361, 363, 365 367 of the ETT information 360, 362, 364, and 366. Therefore, the transport packet including the EIT information 350, 352, and 354 and the ETT information 360, 362, 364, and 366 may be searched using the MGT information 330.
- FIG. 4 shows a transmission structure 405 of digital broadcast content according to a DVB scheme.
- the digital broadcast content according to the DVB scheme includes a satellite DVB service 400, a cable DVB service 440, and a terrestrial DVB service 470 according to a network type.
- the multiplexing units of the DVB service are the transponders 410, 412, 414, 416 of the satellite DVB service 400, the channels 450, 452, 454 of the cable DVB service 440, and the channels of the terrestrial DVB service 470. (480, 482, 484).
- One multiplexing unit may process a plurality of services.
- a plurality of services 420, 422, 424, 426 may be multiplexed and transmitted through one transponder 412.
- a plurality of services 460, 462, and 464 may be multiplexed and transmitted through one channel 452.
- a plurality of services 490, 492, and 494 may be multiplexed and transmitted through one channel 482.
- the bouquet 445 is a collection of a plurality of services that are not limited to the services of the homogeneous network
- the bouquets 445 may provide the services 422, 424, 426, 460 of the heterogeneous network, the satellite DVB service 400 and the cable DVB service 440. It may include.
- One service 422 consists of a video component 430, an audio component 432, 434 and a data component 436.
- a plurality of components may be included in the service 422.
- FIG. 5 shows a hierarchical structure 500 of SI information in a DVB scheme.
- the SI information of the DVB method includes at least Network Information Table (NIT) information 510, Service Description Table (SDT) information 530, Event Information Table (EIT) information 540, and Time Date Table (TDT) information 560. ).
- NIT Network Information Table
- SDT Service Description Table
- EIT Event Information Table
- TDT Time Date Table
- the SI information of the DVB method includes NIT information 515, BAT (Bouquet Association Table) information 520, SDT information 535, EIT information 543, 545, and RST (Running Status Table) information 570. It may include time offset table (TOT) information 580 and stuffing table (ST) information 590.
- TOT time offset table
- ST stuffing table
- NIT information 510 and 515 describe information related to the physical configuration of the multiplexing of transport streams transmitted on the network and the characteristics of the network itself.
- the NIT information 510 and 515 provide information such as the type of the current network, that is, whether it is terrestrial, cable and satellite, and the network name.
- the SDT information 530 and 535 describes information about services included in the transport stream.
- the SDT information 530 may provide information such as a service name and a provider.
- BAT information 520 provides information about the service set of the bouquet.
- the EIT information 540, 543, and 545 provide event information belonging to each service in chronological order.
- the EIT information 540, 543, and 545 may provide information such as the name of the individual program, a start time, a broadcast time, and the like.
- One network is a collection of transport streams transmitted by multiplexing by a single stream transport system. For example, a collection of all digital channels in a particular cable broadcasting system is referred to as one network.
- all terrestrial broadcast operators in a region, ie a country, are uniquely assigned the network identifier 'network_id' of the individual network.
- a service unit refers to a channel of a predetermined frequency band in which content of digital broadcasting content is transmitted. To distinguish it from other services in the transport stream of the current network, the service identifier 'service_id' of the individual service is uniquely assigned.
- an event unit refers to an individual broadcast program. To distinguish it from other events in the current service, the event identifier 'event_id' of the individual event is uniquely assigned.
- Broadcasting stations and operators of the same region or country may distinguish broadcast contents by using a service identifier 'service_id' and a transport stream identifier 'transport_stream_id'.
- 6, 7, 8, 9 and 10 show the syntax of TVCT information, EIT information, ETT information, RRT information and STT information among PSIP information of the ATSC system.
- the apparatus 200 for receiving digital broadcast content may include TVCT information 600, EIT information 700, ETT information 800, RRT information 900, and STT information among PSIP information.
- An EPG screen may be configured using 1000.
- 'transport_stream_id' 610 indicates a transport stream identifier of a current channel
- 'short channel name' 620 indicates channel name abbreviation information
- 'major_channel_number' 630 is additional channel number information
- 'program number' 650 is program number information
- 'ETM_location' 660 is additional text message location information
- 'access_controlled' 670 may provide an access control flag
- 'service type' 680 may provide service type information.
- Additional information on the current channel may be provided in addition to the basic information through the descriptor field 'descriptor ()' 690 of the loop that is included after the basic information of the TVCT information 600.
- the EIT information 700 of FIG. 7 contains brief information about the current event.
- 'title_text ()' 710 of the EIT information 700 indicates information on the name of the current event
- 'start_time' 720 indicates information on the broadcast start time of the current event
- 'length_in_seconds' ( 730 may provide information on a broadcast time of a current event.
- the ETT information 800 of FIG. 8 contains additional information other than the information provided using the VCT information 600 and the EIT information 700.
- 'extended_text_message ()' 810 of the ETT information 800 provides additional information in a text message format.
- the 'ETM_id' 820 for identifying the additional text message includes identification information 834 of the additional text message for the channel and identification information 832 of the additional text message for the event.
- the association object identification information 830 of the additional text message provides identification information 'source_id' of the associated channel of the additional text message for the channel and identification information 'event_id' of the associated event of the additional text message for the event.
- the RRT information 900 of FIG. 9 stores information about broadcast viewing ratings for each region of a broadcast program.
- 'rating_region_name_text ()' 910 of the RRT information 900 indicates information about a broadcast viewing rating region name
- 'abbrev_rating_value_text ()' 912 indicates information about a broadcast viewing rating abbreviation
- 'rating_value_text ( ) '912 provides information about a broadcast viewing rating value.
- the STT information 1000 of FIG. 10 includes information on a current date and time.
- the 'system_time' 1010 of the STT information 1000 indicates information on the time of the current digital broadcasting system
- the 'GPS_UTC_offset' 1012 indicates information on the difference between the GPS (Global Positioning System) time and the coordinated universal time. Provide information.
- FIG. 11 illustrates a screen on which an EPG screen is displayed based on TVCT information 600, EIT information 700, ETT information 800, RRT information 900, and STT information 1000 among PSIP information of the ATSC system. do.
- the EPG screen 1120 is displayed on the screen 1110 where the TV 1100 receiving the digital broadcast content plays the basic content. Looking at the enlarged screen 1130 of the EPG screen 1120, the channel name abbreviation information (1132), channel number information (1134), regional broadcasting rating information (1136), current event name / time information (1138), the current event Additional information 1140 is displayed, time and date information 1142 of the current system.
- the EPG screen 1120 is configured based on the information contained in the TVCT information 600, the EIT information 700, the ETT information 800, the RRT information 900, and the STT information 1000.
- information read from the 'short channel name' 620 of the TVCT information 600 is displayed in the channel name abbreviation information 1132, and 'major_channel_number' (of the TVCT information 600 is displayed in the channel number information 1134. 630 and the information read from the 'minor_channel_number' 640 are displayed in combination.
- the time and date information 1142 of the current system is displayed by combining information read from the 'system_time' 1010 and the 'GPS_UTC_offset' 1012 of the STT information 1000.
- EPG includes 2D / 3D content identification information defined to identify whether the current content is 2D content or 3D content.
- 2D / 3D content identification information may be provided using the service type information 'service_type' 680 and the descriptor field 'descriptor ()' 690 of the TVCT information 600.
- 2D / 3D content link information may be provided by being inserted into the descriptor field 'descriptor ()' 690 of the TVCT information 600.
- the descriptor fields 'descriptor ()' 690 of the TVCT information 600 and the descriptor of the EIT information 700 may be transmitted using at least one of the descriptor () '1020.
- the apparatus 100 for transmitting digital broadcasting content provides digital broadcasting content according to the ATSC scheme
- the descriptor field 'descriptor ()' 690 of the TVCT information 600 and the service are provided.
- 3D channel combining information according to an embodiment may be transmitted using the type information 'service_type'.
- the apparatus 200 for receiving digital broadcast content when the apparatus 200 for receiving digital broadcast content according to an embodiment receives the digital broadcast content provided according to the ATSC scheme, the service type information 'service_type' 680 and the descriptor field 'descriptor () of the TVCT information 600 may be used. From '690', the 2D / 3D content identification information can be detected and read to determine whether the contents are 2D content or 3D content, and the reproduction manner of the contents can be displayed on the EPG screen.
- the apparatus 200 for receiving digital broadcast content detects and reads 2D / 3D content link information from the descriptor field 'descriptor ()' 690 of the TVCT information 600, and then performs 3D associated with the current content. Content can be retrieved and played in three dimensions.
- the descriptor fields 'descriptor ()' 690 of the TVCT information 600 and the EIT information 700 may be used.
- the EPG 3D playback information may be detected and read from at least one of 'descriptor ()' 1020, and the EPG screen may be reproduced in three dimensions using the EPG 3D playback information.
- the apparatus 200 for receiving digital broadcasting content provides the digital broadcasting content according to the ATSC scheme
- the descriptor field 'descriptor ()' 690 of the TVCT information 600 and the service are provided.
- 3D channel combining information according to an embodiment may be detected and read from at least one of the type information 'service_type', and the content extracted from the current channel and the associated channel may be recovered and reproduced in three dimensions.
- the EPG screen may be configured by using the NIT information 1300, the SDT information 1400, and the EIT information 1500.
- the apparatus 200 for receiving digital broadcast content may include a descriptor field 'descriptor ()' 1332 of the DVB NIT information 1300 and a descriptor field 'descriptor () of the SDT information 1400.
- the EPG screen may be configured using information contained in at least one of '1422 and the descriptor field' descriptor () '1544 of the DVB-based EIT information 1500.
- 'bouquet_id' 1210 provides identification information of a bouquet
- 'transport_stream_id' 1232 provides identification information of a current transport stream
- 'origina_network_id' 1234 indicates a broadcast service first.
- Unique identification information of the transmitted local network can be provided.
- 'network_id' 1310 provides identification information of a network in a system for transmitting digital broadcast content, and may be changed when retransmitted.
- 'transport_stream_id' 1322 may provide identification information of the transport stream currently transmitted by the network, and 'origina_network_id' 1234 may provide unique identification information of the local network in which the broadcast service was initially transmitted.
- 'EIT_schedule_flag' 1412 provides information on whether EIT schedule information is provided for a corresponding service transmitted by a current transport stream
- 'EIT_present_following_flag' 1414 is currently Provides information on whether current and next events for the corresponding service transmitted by the transport stream are provided.
- Information about the corresponding service is stored in the service information loop 1410, and extended descriptors containing information about the service using the descriptor field 'descriptor ()' 1422 may be provided.
- 'service_id' 1510 provides identification information of a service transmitted by the current transport stream, and 'section_number' 1520 is used when the current table is divided into sections. Provide identification information.
- One table can be divided into a maximum of eight sections.
- Information on the event is included in the event information loop 1530, and extended descriptors containing information about the event may be provided using the descriptor field 'descriptor ()' 1542.
- service type information of a service list descriptor 'Service list descriptor' of the BAT information 1200 and the NIT information 1300 is provided.
- 'service_type', descriptor field 'descriptor ()' 1242 of BAT information 1200, descriptor field 'descriptor ()' 1332 of NIT information 1300, and reserved area 'reserved_future_use' (of SDT information 1400) 1416 at least one of the descriptor field 'descriptor ()' 1422 and the descriptor field 'descriptor ()' 1542 of the EIT information 1500 may be used to provide 2D / 3D content identification information.
- the descriptor field 'descriptor ()' 1242 of the BAT information 1200 and NIT information 1300 may be used.
- Descriptor field 'descriptor ()' 1332, association descriptor 'linkage descriptor' of SDT information 1400, descriptor field 'descriptor ()' 1142, association descriptor 'linkage descriptor' and descriptor of EIT information 1500 2D / 3D content link information according to an embodiment may be provided using at least one of the fields 'descriptor ()' 1542.
- the descriptor fields 'descriptor ()' 1332 of the NIT information 1300 and the descriptor of the SDT information 1400 are provided.
- EPG 3D playback information according to an embodiment may be transmitted using at least one of the field 'descriptor ()' 1422 and the descriptor field 'descriptor ()' 1544 of the DVB type EIT information 1500.
- the apparatus 100 for transmitting digital broadcast content when the apparatus 100 for transmitting digital broadcast content according to an embodiment provides digital broadcast content according to a DVB scheme, it is associated with a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- 3D channel combining information is transmitted using the linkage type information 'linkage_type' of the descriptor 'linkage_descriptor', the descriptor field 'descriptor ()' 1422 of the SDT information 1400 and the service type information 'service_type'. Can be.
- the service list descriptor 'Service list descriptor' of the BAT information 1200 and the NIT information 1300 is included.
- Service type information 'service_type', descriptor field 'descriptor ()' 1242 of BAT information 1200, descriptor field 'descriptor ()' 1332 of NIT information 1300, and spare area 'of SDT information 1400' 2D / 3D content identification information is detected and read from at least one of the reserved_future_use '1416, the descriptor field' descriptor () '1422, and the descriptor field' descriptor () '1542 of the EIT information 1500, It is possible to determine whether the current content is 2D content or 3D content, and display a 2D / 3D reproduction method of the content on the EPG screen.
- the apparatus 200 for receiving digital broadcast content may include a descriptor field 'descriptor ()' 1242 of the BAT information 1200, a descriptor field 'descriptor ()' 1332 of the NIT information 1300, and the like. At least one of an association descriptor 'linkage descriptor' of the SDT information 1400 and a descriptor field 'descriptor ()' 1422, an association descriptor 'linkage descriptor' of the EIT information 1500 and a descriptor field 'descriptor ()' 1542 2D / 3D content association information can be detected and read, and 3D content associated with the current content can be retrieved and reproduced in 3D.
- the descriptor fields 'descriptor ()' 1332 of the NIT information 1300 and the SDT information 1400 may be used. Detecting and reading EPG 3D reproduction information according to an embodiment from at least one of the descriptor field 'descriptor ()' 1422 and the descriptor field 'descriptor ()' 1544 of the DVB-type EIT information 1500, The EPG screen can be reproduced in three dimensions by using the EPG 3D reproduction information.
- the apparatus 200 for receiving digital broadcast content when the apparatus 200 for receiving digital broadcast content according to an embodiment receives the digital broadcast content provided according to a DVB scheme, the descriptor field 'descriptor ()' 1332 of the NIT information 1300 is provided. 3D channel combining according to an embodiment from at least one of the association type information 'linkage_type' of the associated descriptor 'linkage_descriptor', the descriptor field 'descriptor ()' 1422 of the SDT information 1400 and the service type information 'service_type' By detecting and reading the information, the content extracted from the channel associated with the current channel can be recovered and reproduced in three dimensions.
- 16 is a schematic diagram of an operation of reproducing broadcast content and an EPG screen by a digital broadcast content receiving apparatus according to an embodiment using service additional information.
- the digital broadcast content receiving device 1600 is another embodiment of the digital broadcast content receiving device 100 according to an embodiment, and reproduces digital broadcast content and an EPG screen using ATIP type PSIP information or DVB type SI information. It is a structure for doing so.
- the operation of the demultiplexer 1610 of the digital broadcast content receiving apparatus 1600 may include a transport stream demultiplexing unit 210 and a service additional information extracting unit 220 of the digital broadcast content receiving apparatus 200 according to an embodiment.
- the operations of the program guide processor 1640 and the content output unit 1660 of the digital broadcast content receiving device 1600 may include the content reconstructing unit 230 and the playback unit of the digital broadcast content receiving device 200 according to an exemplary embodiment. Corresponds to operation 240.
- the demultiplexer 1610 may receive the transport stream and demultiplex the video stream into additional information of the video bitstream, the audio bitstream, the PSIP information, or the SI information.
- the program guide processor 1640 may configure an EPG screen by detecting information about a current program to be displayed on the EPG screen from the PSIP information or the SI information output from the demultiplexer 1610.
- the content output unit 1660 may decode the video bitstream and the audio bitstream output from the demultiplexer 1610 by the video decoder 1620 and the audio decoder 1630, respectively, to output the video content and the audio content.
- the display processor 1650 may mix the decoded video content and the EPG screen configured by the program guide processor 1640 to display the EPG screen on the playback screen of the video content.
- 17 is a schematic diagram 1700 of an operation for the digital broadcast content receiving apparatus 1600 to display 3D broadcast content and a 3D EPG screen using service additional information, according to an exemplary embodiment.
- the left view video data and the right view video data are decoded by the video decoder 1620 of the content output unit 1660. And may be stored in the left view video buffer 1670 and the right view video buffer 1675, respectively.
- the PSIP / SI parser 1641 of the program guide processor 1640 may extract the EPG reproduction information 1644 by analyzing the PSIP information or the SI information.
- the EPG reproduction information 1644 may include EPG data, position information '3D_EPG_offset' of a 3D EPG screen for 3D reproduction of an EPG screen, and a playback method of the current content when the EPG screen is reproduced in 3D. It may include information 'Video_Flat' and service provider information 'sender'.
- the display processor 1680 mixes the left view video data and the right view video data and the EPG screen output from the left view video buffer 1670 and the right view video buffer 1675 based on the EPG reproduction information 1644. Can be.
- the digital broadcast content receiving apparatus 1600 of FIG. 16 generates a left view EPG plane and a right view EPG plane of the 3D EPG based on the EPG 3D reproduction information, and respectively, the left view EPG plane and the right view EPG plane are left view points.
- the left view video display plane 1690 and the right view video display plane 1650, which are blended with the video and the right view video, respectively displaying the left view EPG plane and the right view EPG plane, may be configured.
- the 3D EPG offset may be differently applied to the 2D EPG screen for each view.
- the three-dimensional EPG offset is a left and right movement distance of pixels
- the left view EPG screen is generated by moving the two-dimensional EPG screen by an offset in the negative or positive direction along the x-axis, and offset in the positive or negative direction.
- the right view EPG screen may be generated by moving by.
- the 2D EPG screen is fixed to the left view EPG screen and the right view EPG screen is generated by moving the 2D EPG screen by an offset in the negative or positive direction along the x axis. Can be.
- the method of generating the 3D EPG screen may vary according to the nature of the 3D EPG offset.
- the position information '3D_EPG_offset' of the three-dimensional EPG screen of the EPG reproduction information 1644 for three-dimensional reproduction of the EPG screen on the position where the EPG screen is displayed on the left view video data and on the right view video data, respectively.
- the position at which the EPG screen is displayed may be adjusted by depth, shift or binocular parallax.
- Mixed data of the left view video data and the EPG screen may be displayed on the left view video display plane 1690, and mixed data of the right view video data and the EPG screen may be displayed on the right view video display plane 1695.
- the left view video display plane 1690 and the right view video display plane 1695 are alternately reproduced through the switch 1655 which reciprocates according to the display frequency, so that the EPG screen can be reproduced in three dimensions together with the three dimensional reproduction of the content. .
- 2D / 3D content identification information 2D / 3D content link information
- EPG 3D playback information 3D channel combining information
- the apparatus 100 for transmitting digital broadcast content provides digital broadcast content according to the ATSC scheme
- the 2D / 3D content identification information according to the embodiment is described with reference to the TVCT information 600 of FIG. 6. And the use case of the 2D / 3D content link information.
- Table 1 illustrates semantics of service type information 'service_type' 620 in the TVCT information 600.
- the apparatus 100 for digital broadcast content transmission transmits a 3D content service according to the ATSC scheme, to indicate that the current service is a 3D service type, 'service_type' 620 of the TVCT information 600 is indicated.
- 'service_type' 620 of the TVCT information 600 is indicated.
- the apparatus 100 for transmitting digital broadcast content may include a 2D / 3D content identification descriptor '3D_linking_type_descriptor' including 2D / 3D content identification information and a 2D / 3D content link descriptor including 2D / 3D content link information.
- a '3D_linking_descriptor' may be generated and inserted into the loops 602, 604, and 606 of the TVCT information 600.
- Table 2 shows the syntax of the 2D / 3D content identification descriptor '3D_linking_type_descriptor' according to an embodiment.
- '3d_linking_type' may describe a method of transmitting 3D content.
- 3D additional information may include additional view video, depth information, disparity information, and binocular disparity information.
- the 3D additional information according to an embodiment may include a combination of two or more 3D additional information.
- a download service for downloading 3D content through another channel, a heterogeneous network, or another time zone of the same channel may be provided.
- 3D content is provided by using services such as push, browsing & download, and portal.
- NRT Non-Real Time
- the 3D video content of the current 2D content is not additional information for 3D reproduction of the current 2D content, and the 3D video content of the current 2D content solely uses different channels. Can be provided through.
- 3D content transmission method information '3d_linking_type' may indicate whether 3D content is transmitted, it may be an embodiment of 2D / 3D content identification information.
- the apparatus 100 for transmitting digital broadcast content inserts 3D content service method information '3d_linking_type' according to an embodiment into one of the spare areas of the loop 602 of the TVCT information 600. You may.
- Table 4 illustrates syntax of the 2D / 3D content link descriptor 'channel_linking_descriptor' including 2D / 3D content link information according to an embodiment.
- 'link_major_number' may include information on a major channel number for transmitting 3D content associated with the current channel.
- 'link_minor_number' may include information on a minor channel number for transmitting 3D additional information associated with a current channel.
- 'linked_carrier_frequency' may include information on a carrier frequency for transmitting 3D additional information or information on a radio frequency (RF) signal.
- 'link_program_number' may include information on an associated program number that provides associated 3D content when 3D content associated with current content exists in the same program or another program.
- 'link_source_id' may include EIT information and ETT information for providing text information on 3D content service associated with VCT information, and association information on EIT information and ETT information.
- 'link_url_indicator' may include an identifier indicating that there is a Uniform Resource Locator (URL) address for the associated 3D content.
- 'link_source_URL' may include information about a URL address providing 3D content and related information associated with the current content.
- 'link_service_start_time' may include information about a time when the associated 3D content service is provided when the 3D content transmission method is a download service and an NRT service.
- the apparatus 100 for transmitting digital broadcast content may describe various pieces of information about the associated 3D content of the current content by using the 2D / 3D content link descriptor 'channel_linking_descriptor'.
- 2D / 3D content link information may be transmitted to a receiver.
- the apparatus 200 for receiving digital broadcast content may include a 2D / 3D content identification descriptor '3D_linking_type_descriptor', or 2D / 3D, included in the loops 602, 604, and 606 of the TVCT information 600. From the content link descriptor '3D_linking_descriptor', 2D / 3D content identification information and 2D / 3D content link information may be extracted and read to determine whether the current content is 2D content or 3D content, and the associated 3D content may be retrieved. . In addition, the apparatus 200 for receiving digital broadcast content may display whether the current service is 2D content or 3D content on the EPG screen.
- the table also includes CVCT (Cable_Virtual_Channel_Table) information according to a cable method.
- CVCT Code_Virtual_Channel_Table
- 2D / 3D content identification information, 2D / 3D content identification descriptor, 2D / 3D content link information, and 2D / 3D content link descriptor of 1 to 4 may be applied.
- BAT information 1200, NIT information 1300, and SDT of FIGS. 12, 13, 14, and 15 are described below.
- An example of using 2D / 3D content identification information and 2D / 3D content link information according to an embodiment will be described with reference to the information 1400 and the EIT information 1500.
- the apparatus 100 for transmitting digital broadcast content includes service type information 'service_type' of a service descriptor 'Service descriptor' of the SDT information 1400, a service list of the BAT information 1200, and the NIT information 1300.
- the 2D / 3D content identification information may be inserted and transmitted in at least one of the service type information 'service_type' of the 'Service list descriptor'.
- FIG. 18 shows a table 1820 of the service descriptor syntax 1800 and service type information of the service descriptor among descriptors of the SDT information.
- the service descriptor 'Service descriptor' may be inserted into the descriptor field 1422 of the loop 1420 of the SDT information 1400.
- the service type information 'service_type' 1810 of the service descriptor 'Service descriptor' describes the type of the current service type, and the table 1820 of the service type information 'service_type' 1810 shows the types of service types that can be described. do.
- the apparatus 100 for transmitting digital broadcast content additionally adds service type information for providing 3D content to service type information 'service_type' 1810 of the service descriptor 'Service descriptor' of the SDT information 1400.
- service type information 'service_type' 1810 of the service descriptor 'Service descriptor' of the SDT information 1400 Can be assigned.
- the apparatus 100 for transmitting digital broadcast content may include three-dimensional content in the spare areas 1822, 1824, 1826, and 1828 of the table 1820 of the service type information 'service_type' 1810.
- 3D content service type information for indicating that a service is provided may be additionally allocated.
- 19 shows a syntax 1900 of a service list descriptor and a table 1920 of service type information of a service list descriptor among descriptors of BAT information and NIT information.
- the service list Descriptor 'Service list descriptor' can be inserted.
- the service type information 'service_type' 1910 of the service list descriptor 'Service list descriptor' describes the type of the current service type
- the table 1920 of the service type information 'service_type' 1910 describes the types of service types that can be described. Shows.
- the apparatus 100 for transmitting digital broadcast content includes three-dimensional content in the service type information 'service_type' 1910 of the service list descriptor 'Service list descriptor' of the BAT information 1200 and the NIT information 1300.
- Service type information provided with may be additionally allocated.
- the apparatus 100 for transmitting digital broadcast content may include three-dimensional content in the reserved areas 1922, 1924, 1926, and 1928 of the table 1920 of the service type information 'service_type' 1910.
- 3D content service type information for indicating that a service is provided may be additionally allocated.
- the apparatus 200 for receiving digital broadcast content may include service type information 'service_type' 1810, BAT information 1200, and NIT information 1300 of a service descriptor 'Service descriptor' of the SDT information 1400.
- Read at least one of the service type information 'service_type' 1910 of the service list descriptor 'Service list descriptor' to determine whether the service type of the current content is a 3D content service, and the current service is set to 2 on the EPG screen. It may indicate that the content is 3D content or 3D content.
- the apparatus 100 for transmitting digital broadcast content may include a reserved area 'reserved_future_use' 1416 of the SDT information 1400, a descriptor field 'descriptor ()' 1422, and a descriptor field 'of the EIT information 1500.
- 2D / 3D content identification information may be inserted into a transport stream using at least one of the descriptor () '1542.
- the loop 1410 of the SDT information 1400 may be modified as shown in Table 5 below. Can be.
- '3d_service' may be inserted into the SDT information 1400 and transmitted.
- Tables 6 and 7 show semantics of '3d_service' according to an embodiment.
- Table 6 3d_service Description 0 2D or Main video service One Mixed 2D / 3D service 2 3D only service 3 Additional 3D service [4:15] reserved
- 3d_service Description 0 2D or 3D Main video service One Mixed 2D / 3D service 2 3D only service 3 Depth / disparity map 4 parallax 5 R video 6 R video + depth 7 R video + parallax
- '3d_service' may describe that the current service is one of a two-dimensional gaze point video service, a mixed service of two-dimensional video and three-dimensional video, a single three-dimensional video service, and a three-dimensional additional information service. .
- the 2D watch point video service may provide only a 2D video service through a current service or only a watch point video of a multiview video or a stereo view video.
- the mixed video service of 2D video and 3D video may provide a time-division mixture of 2D video and 3D video.
- the single 3D video service may include a side-by-side format, a top-and-bottom format, and a multi-view coding (MVC) format.
- MVC multi-view coding
- the view-specific information constituting the 3D video may be included in one stream and provided.
- Table 7 is an embodiment in which the three-dimensional additional information service is subdivided among '3d_service' in Table 6. That is, '3d_service' according to Table 7 indicates that the current service includes a 2D watch point video service, a mixed video service of 2D video and 3D video, a single 3D video service, and depth / disparity map information. It may be described as one of a service, a parallax information service, an R video service, a combination service of additional view video and depth information, and a combination service of additional view video and binocular disparity information.
- the apparatus 100 for transmitting digital broadcast content determines a 3D service descriptor '3d_service_descriptor' including '3d_service' according to an embodiment, and describes a descriptor field of a loop 1420 among the SDT information 1400. It can be inserted into 'descriptor ()' 1422.
- Table 8 illustrates syntax of the 3D service descriptor '3d_service_descriptor' according to an embodiment inserted into the descriptor field 'descriptor ()' 1422 of the SDT information 1400, according to an embodiment.
- the apparatus 100 for transmitting digital broadcast content determines a 3D event descriptor '3d_event_descriptor' including 2D / 3D content identification information according to an embodiment, and describes a descriptor field 'descriptor' of the EIT information 1500. () '(1542) can be inserted.
- Table 9 illustrates syntax of the 3D event descriptor '3d_event_descriptor' according to an embodiment.
- Tables 10 and 11 show semantics of 3D event information '3d_event', which is a kind of 2D / 3D content identification information, according to an embodiment.
- Table 11 3d_event Description 0 2D or 3D Main video event One Mixed 2D / 3D event 2 3D only event 3 Depth / disparity map 4 parallax 5 R video 6 R video + depth 7 R video + parallax
- '3d_event' may describe that the current event is one of a 2D watch point video event, a mixed event of 2D video and 3D video, a single 3D video event, and a 3D additional information event. .
- Table 11 is an embodiment in which three-dimensional additional information events are subdivided among '3d_event' in Table 10.
- '3d_event' indicates that the current event is a two-dimensional gaze video event, two-dimensional video, and three-dimensional video.
- the apparatus 200 for receiving digital broadcast content may include a reserved area 'reserved_future_use' 1416 of the SDT information 1400 or a '3d_service' of the descriptor field 'descriptor ()' 1422 or EIT information (
- 2D / 3D content identification information is read from the descriptor field 'descriptor ()' 1542 of 1552 to determine whether the current content is three-dimensional content, and the current service or the current information is displayed on the EPG screen. It may indicate whether the event is 3D content.
- the apparatus 100 for transmitting digital broadcast content may include a descriptor field 'descriptor ()' 1422 of the SDT information 1400 or a descriptor field 'descriptor ()' 1542 of the EIT information 1500.
- a descriptor field 'descriptor ()' 1422 of the SDT information 1400 or a descriptor field 'descriptor ()' 1542 of the EIT information 1500.
- 2D / 3D content identification information may be inserted into a transport stream.
- Table 12 shows the syntax of the component descriptor 'Component_descriptor' of the SDT information 1400 or the EIT information 1500.
- the apparatus 100 for transmitting digital broadcast content may additionally allocate 3D video component type information to a spare area of 'component_type' among the component descriptor 'Component_descriptor'.
- Table 14 illustrates semantics of an embodiment in which 3D video component type information is additionally allocated to 'component_type' according to an embodiment.
- Table 14 Stream_content Component_type Description 0x01 0x11 MPEG-2 half 3D video, 4: 3 aspect ratio, 25 Hz 0x01 0x12 MPEG-2 half 3D video, 16: 9 aspect ratio with pan vector, 25 Hz 0x01 0x13 MPEG-2 half 3D video, 16: 9 aspect ratio without pan vector, 25Hz 0x01 0x14 MPEG-2 half 3D video,> 16: 9 aspect ratio, 25 Hz 0x01 0x15 MPEG-2 half 3D video, 4: 3 aspect ratio, 30 Hz 0x01 0x16 MPEG-2 half 3D video, 16: 9 aspect ratio with pan vector, 30Hz 0x01 0x17 MPEG-2 half 3D video, 16: 9 aspect ratio without pan vector, 30Hz 0x01 0x18 MPEG-2 half 3D video,> 16: 9 aspect ratio, 30 Hz 0x01 0x19 MPEG-2 3D video, 4: 3 aspect ratio, 25 Hz 0x01 0x1
- 'component_type' of Table 14 uses the region after the field value 0x11, and the 3D video component type information 'MPEG-2 half 3D video' or 'MPEG'. -2 3D video 'can be additionally assigned. Based on 'component_type' of Table 14, not only the 2D / 3D content identification information but also information such as resolution, aspect ratio, frequency, etc. of the current component may be set.
- the apparatus 100 for transmitting digital broadcast content may include a transport stream encoded according to the H.264 method in 'component_type' of the component descriptor 'Component_descriptor' of the SDT information 1400 or the EIT information 1500.
- 3D video component type information may be additionally defined and inserted.
- Table 15 shows a table of 'component_type' to which 3D video component type information for a transport stream encoded according to the H.264 scheme is added.
- the 'MPEG-2 half 3D video' type or the 'H.264 / AVC half 3D video' type includes: In more detail, such as a side by side format and a top and bottom format may be extended to a three-dimensional image composition format.
- the full-resolution 'MPEG-2 3D video' type or the 'H.264 / AVC 3D video' type includes the base stream and the right of the left view video.
- 'L / R (2ES)' type which transmits the base stream of viewpoint video
- 'MVC' type which transmits the base stream of watch-point two-dimensional video and auxiliary view of auxiliary view video
- 2-point video and depth of watch point '2D + depth' type is transmitted
- the '2D + parallax' type is transmitted a combination of gaze 2D video and binocular disparity information
- 'L + depth' type is transmitted
- the combination of left view video and depth information It may be extended to an 'L + parallax' type in which a combination of left view video and binocular disparity information is transmitted, and an 'L + R + depth' type in which a combination of left view video, right view video and depth information is transmitted.
- the apparatus 100 for transmitting digital broadcasting content uses 3D video content information by using a spare area of 'stream_content' of the component descriptor 'Component_descriptor' of the SDT information 1400 or the EIT information 1500. Can be further defined.
- Table 16 shows a table of 'stream_content' to which 3D video content information is added.
- Table 16 Stream_content Component_type Description 0x09 (reserved) 0x00 2D video 0x09 0x01 3D video 0x09 0x02 Mixed 2D / 3D video 0x09 0x03 Additional 3D video (depth or disparity or R video or dependent view or sub view) 0x09 0x04 3D subtitle 0x09 0x05 to 0xFF reserved for future use
- the apparatus 100 for transmitting digital broadcast content uses the spare area of the component descriptor 'Component_descriptor', which may be inserted into the descriptor field 'descriptor ()' 1542 of the EIT information 1500.
- 2D / 3D content identification information may be inserted into a transport stream.
- Table 17 illustrates an embodiment in which the digital broadcast content transmission apparatus 100 inserts 2D / 3D content identification information according to an embodiment into a reserved area 'reserved_future_use' of a component descriptor 'Component_descriptor' of Table 12. Shows.
- '3d_flag' may include information indicating whether the current component is a 3D component. For example, if the value of '3d_flag' is 0, '3d_evnet' is not read.
- '3d_evnet' corresponds to '3d_evnet' illustrated in Table 10 or Table 11.
- the apparatus 100 for transmitting digital broadcast content may be inserted into the descriptor field 'descriptor ()' 1542 of the EIT information 1500 as shown in Table 18.
- 2D / 3D content identification information may be inserted into a transport stream.
- Information about the genre of video content may be described using a combination of 'content_nibble_level_1' and 'content_nibble_level_2' among the content descriptor 'content_descriptor'.
- the apparatus for transmitting digital broadcast content 100 may further define a 3D video content type by using 'content_nibble_level_2' among the content descriptor 'content_descriptor'.
- Table 19 illustrates an embodiment in which the genre of 3D video content is added by fixing 'content_nibble_level_1' in the content descriptor 'content_descriptor' and extending 'content_nibble_level_2'.
- the apparatus 100 for digital broadcast content transmission may further define a 3D video content type using 'content_nibble_level_1' among the content descriptor 'content_descriptor'.
- Table 20 illustrates an embodiment in which a genre of 3D video content is added by extending 'content_nibble_level_1' among content descriptors 'content_descriptor'.
- the apparatus 100 for receiving digital broadcast content may include a descriptor field 'descriptor ()' 1422 of the SDT information 1400 or a descriptor field 'descriptor ()' 1542 of the EIT information 1500. From the descriptor 'Component_descriptor', '3d_event', 'stream_content' or 'component_type' may be read to determine whether the current content is 3D content, and whether or not the current event is 3D content on the EPG.
- the apparatus 100 for receiving digital broadcast content reads the genre attribute of the current content from the content descriptor 'Content_descriptor' of the descriptor field 'descriptor ()' 1542 of the EIT information 1500, and It may be determined whether the content is 3D content, and it may be displayed on the EPG whether the current content is 2D content or 3D content.
- the descriptor field 'descriptor ()' 1420 of the SDT information 1400 or the descriptor of the EIT information 1500 may be inserted into a transport stream and transmitted according to an embodiment.
- 20 and 21 illustrate an association relationship between two-dimensional content and three-dimensional content in a service unit, and an association relationship between two-dimensional content and three-dimensional content in an event unit, according to an exemplary embodiment.
- the 2D / 3D content link information of a service unit may include identification information indicating a 3D service associated as 3D content for a current content service and attribute information of the associated 3D service.
- the 2D / 3D content link information 2025 of the 2D video service 2010 is 3D. It may include identification information and attribute information of the video service 2020.
- the 3D additional information service 2030 is associated as the related 3D content of the 2D video service 2010, the 2D / 3D content link information 2035 of the 2D video service 2010 is added to the 3D content. It may include identification information and attribute information of the information service 2030.
- the 2D / 3D content link information of an event unit may include identification information indicating a 3D event associated with the 3D content for the current content event, and attribute information of the associated 3D event.
- the 3D for the 2D video event 2102 is three-dimensional.
- the 2D / 3D content link information 2115 of the 2D video event 2102 may include identification information and attribute information of the 3D video event 2110.
- the 2D / 3D content link information 2135 of the 2D video event 2102 is added to the 3D content. It may include identification information and attribute information of the information service 2130.
- the 2D / 3D content link information may include association information between the current content and the related content in a service unit or an event unit.
- the 2D / 3D content link information defined in a service unit may include information on a current service and information on an associated service.
- the information about the current service among the 2D / 3D content link information according to an embodiment may be inserted into the reserved area 'reserved_future_use' 1416 in the loop 1410 of the SDT information 1400.
- the apparatus 100 for transmitting digital broadcast content according to an embodiment generates a descriptor including information on a current service from 2D / 3D content link information according to an embodiment, and describes a descriptor field of the SDT information 1400. It may be inserted into the 'descriptor ()' 1420.
- the information on the current service of the 2D / 3D content link information may include at least one of current service type information and 3D content format information of the current service.
- Tables 21 and 22 show semantics of current service type information of 2D / 3D content link information and three-dimensional content format information of the current service, respectively, according to an embodiment.
- the current service is one of a 2D watch point video service, a single 3D video service, and a 3D additional information service.
- the 2D / 3D content link information may be inserted into the association descriptor 'linkage_descriptor' which is one of the descriptors of the SDT information 1400.
- Table 23 illustrates a syntax modified from the linkage descriptor field 'linkage_descriptor' of the SDT information 1400, into which information on the link service of the 2D / 3D content link information is inserted.
- the apparatus 100 for transmitting digital broadcast content is a service associated with a 3D service in order to reproduce the current 2D service in 3D in a spare area of the linkage type information “linkage_type” among the linkage descriptor “linkage_descriptor”.
- a 3D service association type indicating a type may be additionally allocated.
- the 3D service association type may be allocated to the field value 0x0E which is a reserved area of 'linkage_type'.
- '3d_viewing_listed' may describe whether or not the 3D service exists in the SDT information of the transport stream designated by 'transport_stream_id', 'original_network_id', and 'service_id'.
- '3d_simulcast' may describe whether the 3D service is currently transmitted simultaneously with the 2D service.
- '3d_service_link_type' may describe whether the associated 3D service of the current 2D service is single 3D content or 3D additional information.
- '3d_link_format' may describe 3D content format information of the associated 3D service.
- Tables 24 and 25 show the syntax of '3d_service_link_type' and 3d_link_format 'inserted into the association descriptor' linkage_descriptor 'of the SDT information 1400 as information on the association service.
- the related service of the current service is one of a single 3D video service and a 3D additional information service.
- FIG. 22 illustrates 2D / 3D content link information of a service unit according to an association between a 2D service and a 3D service, according to an exemplary embodiment.
- the linkage descriptor 'linkage_descriptor' of the SDT information 1400 is 2D / 3D according to an embodiment configured as follows.
- Information 2220 about the association service of the content link information 2215 may be inserted.
- the '3d_viewing_listed' value is set to 1, and since the 3D service 2210 is transmitted simultaneously with the current 2D service 2200, the '3d_simulcast' value may also be set to 1. have.
- the '3d_service_link_type' value is set to 2
- the related 3D service 2210 is 3D additional information. Since the mid-view video, the '3d_link_format' value may be set to 3.
- the 2D / 3D content link information defined in an event unit may include information on a current event and information on an associated event.
- the apparatus 100 for transmitting digital broadcast content generates a descriptor including information on a current event among 2D / 3D content link information according to an embodiment, and loops 1540 of the EIT information 1500. Can be inserted into the descriptor field 'descriptor ()' 1542.
- Table 26 illustrates syntax of a 3D event descriptor '3d_event_descriptor' including information on a current event among 2D / 3D content link information according to an embodiment.
- the 3D event descriptor field '3d_event_descriptor' may include at least one of current event type information '3d_event_type' and 3D content format information '3d_format' of the current event.
- Table 27 illustrates semantics of '3d_event_type' for describing current event type information in a 3D event descriptor field '3d_event_descriptor' including information about a current event among 2D / 3D content link information according to an embodiment. .
- the current event is one of a 2D watch point video event, a single 3D video event, and a 3D additional information event.
- the 3D content format information '3d_format' of the current event among the 2D / 3D content link information of the event unit may be determined in the same manner as the 3D content format information '3d_format' of the current service of Table 22.
- the information on the association event in the 2D / 3D content link information may be inserted into the association descriptor 'linkage_descriptor' which is one of the descriptors of the EIT information 1500.
- Table 28 illustrates a syntax of a modification of the association descriptor field 'linkage_descriptor' of the EIT information 1500 into which information about an association event of 2D / 3D content link information is inserted.
- the apparatus 100 for transmitting digital broadcast content is associated with a 3D event to reproduce a current 2D event in 3D in a spare area of the linkage type information 'linkage_type' among the linkage descriptor 'linkage_descriptor'.
- 3D event association type can be added.
- the 3D event association type may be allocated to the field value 0x0E which is a spare area of 'linkage_type'.
- '3d_viewing_evnet_id' may include identification information of the associated 3D event required to reproduce the current 2D event in 3D.
- '3d_viewing_listed' may describe whether or not a 3D event exists in the SDT information of the transport stream designated by 'transport_stream_id', 'original_network_id', and 'service_id'.
- '3d_simulcast' may describe whether the 3D event is transmitted simultaneously with the current 2D event.
- '3d_event_link_type' may describe whether the associated 3D event of the current 2D event is single 3D content or 3D additional information.
- '3d_link_format' may describe 3D content format information of the associated 3D event.
- Table 29 shows the syntax of '3d_event_link_type' that is inserted as information on the association service in the association descriptor 'linkage_descriptor' of the EIT information 1500.
- the associated event of the current event is one of a single 3D video service and a 3D additional information service.
- 3D content format information '3d_format' of a related event among 2D / 3D content link information of an event unit may be determined in the same manner as 3D content format information '3d_format' of a related service of Table 25.
- FIG. 23 illustrates 2D / 3D content link information of an event unit according to a correlation between a 2D event and a 3D event, according to an exemplary embodiment.
- the linkage descriptor 'linkage_descriptor' of the EIT information 1500 may have 2D / Information 2320 of the association service of the 3D content link information 2315 may be inserted.
- the apparatus 200 for receiving digital broadcasting content detects and reads 2D / 3D content link information from the association descriptor 'linkage_descriptor' of the SDT information 1400 or the EIT information 1500 to detect the current service.
- the service type or the event type of the current event may be determined, and the associated service or associated event required to reproduce the current service or the current event in three dimensions may be searched.
- an associated content for reproducing the current content in three dimensions may be detected in a service unit or an event unit.
- the digital broadcasting content receiving apparatus 200 may identify a service or event that can be reproduced in 3D on an EPG screen. May be displayed.
- the apparatus 100 for transmitting digital broadcast content may include a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- 2D / 3D content link information may be transmitted.
- Each transport stream may be uniquely defined based on 'original_network_id' (1234, 1324) and 'transport_stream_id' 1232, 1322 of the first loop 1320 of the BAT information 1200 and the NIT information 1300.
- the descriptor fields 'descriptor ()' 1242 and 1332 of the second loops 1240 and 1330 may include attribute information of each transport stream.
- the service list descriptor 'service_list_descriptor' indicates one transport stream. Describe information about services provided through
- the apparatus 100 for transmitting digital broadcast content uses the service list descriptor 'service_list_descriptor' of the BAT information 1200 and the NIT information 1300 to present the 2D / 3D content link information according to an embodiment.
- Information about the content may be transmitted.
- the apparatus for transmitting digital broadcast content 100 may include BAT information 1200 and NIT information 1300.
- the service type information 'service_type' 1910 of the service list descriptor 'Service list descriptor' may additionally allocate service type information provided with 3D content.
- the apparatus 100 for transmitting digital broadcast content generates a descriptor including information on related content among 2D / 3D content link information according to an embodiment, and describes a descriptor field of the BAT information 1200. It may be inserted into the descriptor field 'descriptor ()' 1332 of the 'descriptor ()' 1242 and the NIT information 1300 and transmitted. Alternatively, a spare area of the descriptor field 'linkage_descriptor ()' among descriptors of the descriptor field 'descriptor ()' 1242 of the BAT information 1200 and descriptor descriptor 'descriptor ()' 1332 of the NIT information 1300. In the 2D / 3D content link information according to an embodiment, information on related content may be inserted.
- the apparatus 200 for receiving digital broadcast content includes a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- the apparatus 100 for transmitting digital broadcast content may include a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- Descriptors of may transmit 2D / 3D content link information for all services provided through the current network or the current bouquet. Therefore, aggregate channel information and inter-channel link information for services provided through the current network or the current bouquet may be provided.
- Table 30 shows a service list descriptor according to an embodiment for inserting into the descriptor field 'descriptor ()' 1242 of the BAT information 1200 and the descriptor field 'descriptor ()' 1332 of the NIT information 1300. It shows a set of 'service_list_descriptor ()' and an association descriptor 'linkage_descriptor ()'.
- the service list descriptor 'service_list_descriptor ()' may include identification information 'service_id # 1, # 2, and # 3' regarding current services provided through the current transport stream.
- the linkage descriptor 'linkage_descriptor # 1, # 2, # 3' may provide identification information on the related service for each current service.
- the channel attribute information of the service associated with the channel attribute information of the current service may be provided using the service list descriptor 'service_list_descriptor ()'.
- the apparatus 100 for transmitting digital broadcast content includes a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- the apparatus 100 for transmitting digital broadcast content may generate a descriptor including 2D / 3D content link information for all services provided through the current network or the current bouquet, thereby generating the BAT information 1200.
- the descriptor field 'descriptor ()' 1242 or the descriptor field 'descriptor ()' 1332 of the NIT information 1300 may be inserted. Through this, aggregate channel information and inter-channel link information for services provided through the current network or the current bouquet may be provided.
- the apparatus 200 for receiving digital broadcast content may include a descriptor field 'descriptor ()' 1242 of the BAT information 1200 or a descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- 2D / 3D content link information of all services provided through the current network or the current bouquet can be extracted and read.
- the apparatus 200 for receiving digital broadcast content may include service type information and associated services for all services provided through a current network or a current bouquet, based on 2D / 3D content link information according to an embodiment. Since information can be read, aggregate channel information and inter-channel link information for services can be provided.
- Table 31 illustrates a syntax of a descriptor field 'ts_channel_descriptor ()' including both information on a current service and information on a related service, of 2D / 3D content link information according to an embodiment.
- the information about the current service and the related service 'target_service' can be set for each current service 'current_service', so that all services provided through the current transport stream can be set.
- 2D / 3D content link information may be set.
- 'Current_service_type' including service type information of the current service may be set similar to '3d_service_type' in Table 22, and 'current_3d_format' including 3D content format information of the current service is similar to '3d_format' in Table 23 Can be set.
- 'Target_service_type' including service type information of the related service may be set similar to '3d_service_link_type' in Table 24, and 'target_3d_format' including 3D content format information of the related service is similar to '3d_link_format' in Table 25 Can be set.
- the descriptor field 'ts_channel_descriptor ()' of Table 31 illustrates an embodiment in which only information on a current service and a related service of a service unit is included. Extending this, the apparatus for transmitting digital broadcast content 100 according to an embodiment generates a descriptor including 2D / 3D content link information on all services and events provided through a current network or a current bouquet, The descriptor field 'descriptor ()' 1242 of the BAT information 1200 may be inserted into the descriptor field 'descriptor ()' 1332 of the NIT information 1300.
- the apparatus 200 for receiving digital broadcast content may include a descriptor field 'descriptor ()' 1242 of the BAT information 1200 and a descriptor field 'descriptor ()' of the NIT information 1300.
- Channel information and three-dimensional reproduction of services provided through the current stream by detecting and reading channel information about a plurality of services provided through the current stream and association information between services for three-dimensional reproduction from a predetermined descriptor This possible service can be displayed on the EPG.
- 24 is a diagram illustrating an EPG screen on which 3D content is displayed using 2D / 3D content identification information or 2D / 3D content link information according to an embodiment.
- the digital broadcast content receiving apparatus 2400 may display the EPG screen 2420 on the reproduction screen 2400 of the restored content while receiving and reproducing and reproducing the content of the digital broadcast stream.
- the PSIP information is extracted from the received stream, and the TVCT information 600, the EIT information 700, and the ETT information 800 of the PSIP information are extracted. ), Information for configuring the EPG screen 2420 is described in the RRT information 900 and the STT information 1000.
- SI information is extracted from the received stream, BAT information 1200, NIT information 1300, SDT information 1400, and EIT information 1500 of the SI information. From this, information for constructing the EPG screen 2420 may be extracted.
- the digital broadcast content receiving device 2400 may include channel numbers CH1, CH2, CH3, event attributes (Movie, Comedy, Soccer, Baseball, News, Music, Music) from PSIP information of ATSC or SI information of DVB. Game), an event start time, a broadcast time, and the like, and the EPG screen 2420 may be configured and displayed on the content playback screen 2410.
- event attributes Menoe, Comedy, Soccer, Baseball, News, Music, Music
- 2D / 3D content identification information may be extracted from the TVCT information 600 of the PSIP information, the SDT information 1400 of the SI information, or the EIT information 1500.
- 2D / 3D content link information may be extracted from TVCT information 600 of PSIP information, SDT information 1400 of SI information, and EIT information 1500.
- the 2D / 3D content link information may include identification information of the current content as well as information on the related content.
- the apparatus for receiving digital broadcast content 2400 uses the 2D / 3D content identification information or the 2D / 3D content link information according to an embodiment, and the event 'Music' 2430 of channel 3 (CH3). ) Can be determined to be an event that can be reproduced in three dimensions.
- the apparatus for receiving digital broadcast content 2400 may display, on the EPG screen 2420, a mark for identifying that the event is '3D content' for the 'Music' 2430.
- FIG. 25 illustrates an EPG screen and a general EPG screen supporting channel hopping between three-dimensional channels implemented using 2D / 3D content identification information or 2D / 3D content link information according to an embodiment.
- the apparatus 200 for receiving a digital broadcast service includes a 3D channel dedicated EPG screen 2500 including only 3D playback service and all services regardless of the 2D playback / 3D playback method.
- the configured general EPG screen 2510 may be selectively displayed.
- the digital broadcast service receiving apparatus 200 uses the 2D / 3D content identification information or the 2D / 3D content link information according to an embodiment to display a 3D service only.
- a channel dedicated EPG screen 2500 may be configured.
- the digital broadcasting service receiving apparatus 200 when there is a user input for selecting only a 3D service using the 3D channel dedicated EPG screen 2500, the digital broadcasting service receiving apparatus 200 according to an embodiment may provide 2D / 3D content.
- the 3D channel-specific EPG information 2500 may be configured, and a 3D channel hopping function of searching and reproducing only the 3D service may be implemented.
- FIG. 26 illustrates an EPG screen for a 3D channel implemented based on 2D / 3D content link information inserted in NIT information according to an embodiment.
- the NIT information 2670 includes information about the current network, and the NIT information for each transport stream 2610, 2622, 2632, 2642, 2652, and 2662 for each transport stream 2610, 2620, 2630, 2640, 2650, and 2660. It may also include.
- the apparatus 200 for receiving digital broadcast content is provided from NIT information 2612, 2622, 2632, 2642, 2652, and 2662 for each transport stream 2610, 2620, 2630, 2640, 2650, and 2660.
- channel attribute information and link information for 3D reproduction of all services included in each transport stream may be extracted.
- channel attribute information and link information for all services of the transport streams 2610, 2620, 2630, 2640, 2650, and 2660 currently received through the network may be extracted from the NIT information 2670.
- aggregate channel information for the current network can be provided from the NIT information 2670.
- the apparatus for receiving digital broadcast content 200 may search for transport streams 2610, 2630, and 2650 for 3D broadcasting based on service type information extracted from the NIT information 2670. Accordingly, the apparatus 200 for receiving digital broadcast content according to an embodiment may detect and read only channel information of a transport stream 2610, 2630, and 2650, which is identified as 3D broadcast content, and may implement an internal 3D channel hopping function.
- the 3D channel EPG screen 2680 may also be configured.
- FIG. 27 illustrates a method of implementing channel hopping between three-dimensional channels using 2D / 3D content identification information or 2D / 3D content link information inserted as a descriptor of BAT information according to an embodiment.
- information about the set of services included in the bouquet may be provided using the first loop 1230 and the second loop 1210 and the third loop 1220.
- the BAT information 1300 since the BAT information 1300 includes information on a bouquet that is a collection of a plurality of services, the BAT information 1300 determines a three-dimensional bouquet that is a collection of three-dimensional services, and the BAT information 1200 includes a three-dimensional service that constitutes a three-dimensional bouquet. It may include information about.
- the apparatus 200 for receiving digital broadcast content reads a bouquet name descriptor describing the name "3D Bouquet" of the current bouquet from the descriptor field 2730 of the first loop 1230 of the BAT information 1200. can do.
- the apparatus 200 for receiving digital broadcast content may include the service list descriptor 2724 and the associated descriptors 2726 and 2728 from the descriptor field 1222 of the third loop 1220 of the BAT information 1200. ) Can be extracted.
- the service list descriptor 2724 and the associated descriptors 2726 and 2728 may be set similarly to the 'service_list_descriptor' and the 'linkage_descriptor' described above with reference to FIGS. 19, 23, 28, and 30.
- the apparatus 200 for receiving digital broadcast content reads the channel information "3D SBC 1" of the current service from the service list descriptor 2724 and the associated service of the current service from the association descriptors 2726 and 2728.
- the channel information of "3D SBC 1" and "3D MBC 2" can be read.
- the apparatus 200 for receiving digital broadcasting content may search for the 3D bouquet and the channel of the 3D service by using the channel information and the link information extracted from the BAT information 1200.
- Internal three-dimensional channel hopping may be implemented.
- the descriptor fields 'descriptor ()' 690 of the TVCT information 600 and the descriptor of the EIT information 700 are included in the descriptor ()' 720, 'ETM_id' 820 of ETT information 800, descriptor field 'descriptor ()' 920 of RRT information 900, and descriptor field 'of STT information 1000'.
- a descriptor including EPG 3D reproduction information may be inserted and transmitted.
- the descriptor fields 'descriptor ()' 1332 of the NIT information 1300 and the descriptor of the SDT information 1400 are provided.
- a descriptor including EPG 3D playback information is inserted into at least one of the field 'descriptor ()' 1544.
- the apparatus 100 for transmitting digital broadcast content may insert EPG 3D reproduction information for reproducing an EPG screen in three dimensions into PSIP information or SI information.
- the EPG 3D reproduction information according to an embodiment is information about a depth for reproducing an EPG screen in three dimensions, and may be used in various forms such as depth, variation, binocular parallax, or offset.
- the apparatus 200 for receiving digital broadcasting content may gather sections from a transport stream received through an ATSC scheme, extract EPG screens and EPG 3D reproduction information, and use 2 EPG 3D reproduction information to extract the EPG 3D reproduction information.
- the 3D EPG screen can be changed into a 3D EPG screen and played back.
- the apparatus 100 for transmitting digital broadcast content may generate a descriptor including EPG 3D presentation information. Except for the ETT information 800 of the PSIP information, the TVCT information 600, the RRT information 900, the STT information 1000, and the EIT information 700 all include a descriptor field 'descriptor ()'.
- the apparatus 100 for digital broadcast content transmission according to an embodiment may insert a 3D EPG descriptor including EPG 3D reproduction information according to an embodiment into a descriptor field of PSIP information.
- the ETT information 800 has no descriptor field, but is linked with the TVCT information 600 or the EIT information 700 through 'ETM_id', and may inherit the 3D EPG descriptor of the associated information.
- Table 32 is a syntax of a 3D EPG descriptor according to an embodiment.
- '3D_EPG_offset' includes offset information of the EPG screen to be displayed on the EPG screen by PSIP information including the 3D EPG descriptor '3D_EPG_descriptor ()'.
- 'Video_Flat' includes video two-dimensional playback information indicating whether or not the video of the currently broadcast event is played back by switching to a two-dimensional playback mode when the EPG screen is reproduced in three dimensions.
- Table 33 shows the semantics of the video two-dimensional playback information 'Video_Flat'.
- the digital broadcast content receiving apparatus 200 may include the 3D EPG offset on the 2D EPG screen. It can be applied differently for each point of view.
- the digital broadcasting content receiving apparatus 200 when the 3D EPG offset is a left and right movement distance of the pixel, the digital broadcasting content receiving apparatus 200 generates a left view EPG screen by moving the 2D EPG screen by an offset in the negative direction along the x axis, By moving the offset in the positive direction, the right view EPG screen can be generated.
- the digital broadcasting content receiving apparatus 200 fixes the 2D EPG screen as a left view EPG screen, and offsets the 2D EPG screen in a negative or positive direction along the x axis.
- the right view EPG screen can be generated by moving as much as possible.
- the method of generating the 3D EPG screen by the apparatus for receiving digital broadcasting content 200 may vary.
- the apparatus 200 for receiving digital broadcasting content receives the digital broadcasting content according to the ATSC scheme, the descriptor fields 'descriptor ()' 690 of the TVCT information 600 and the descriptor of the EIT information 700.
- a descriptor including the EPG 3D reproduction information may be extracted to read the EPG 3D reproduction information, and the EPG screen may be reproduced in three dimensions.
- the descriptor field 'descriptor ()' 1332 of the NIT information 1300 and the descriptor of the SDT information 1400 are provided.
- Descriptor including EPG 3D playback information is extracted from at least one of the field 'descriptor ()' 1422 and the descriptor field 'descriptor ()' 1544 of the DVB scheme EIT information 1500.
- EPG 3D reproduction information can be read, and an EPG screen can be reproduced in three dimensions.
- the apparatus 200 for receiving digital broadcasting content may prevent an inconvenience such as awkwardness that a viewer can visually feel by reproducing an EPG screen in three dimensions at an accurate position based on EPG 3D reproduction information.
- 3D channel combining information according to an embodiment indicating association information between channels when two or more streams constituting 3D content are transmitted and received through one or more channels will be described in detail.
- FIG. 28 is a flowchart of an associated channel determination method for 3D content transmission of the apparatus 100 for transmitting digital broadcast content according to an embodiment.
- the digital broadcasting content transmission apparatus 100 transmits 3D content or ultra definition (UD) content
- the data transmission amount is larger than that of the digital broadcasting system of high definition (HD) content
- the data compression rate is increased.
- the apparatus 100 for transmitting digital broadcast content extends the channel bandwidth for data transmission by using a plurality of channels even though the bandwidth of one channel is fixed, thereby providing digital broadcast content that provides 3D broadcast content. Can transmit
- the apparatus 100 for transmitting digital broadcast content may determine the total bandwidth for transmitting current content and determine the number of channels required.
- the apparatus 100 for transmitting digital broadcast content when the apparatus 100 for transmitting digital broadcast content according to an embodiment wants to transmit current content using two or more channels, whether the content associated with the current content is an adjacent channel or a non-adjacent channel of the current channel.
- the non-adjacent channel may be selected as an associated channel.
- the apparatus 100 for transmitting digital broadcast content may generate a control signal of a digital broadcast signal including 3D channel combining information according to an embodiment.
- the 3D channel combining information may include information on whether a plurality of channels are combined, information indicating whether a current channel is a main channel, information on bandwidth size, information on whether an associated channel is an adjacent channel, and an associated channel.
- This channel may include information indicating whether the channel is a front or rear channel, and if the channel is non-adjacent, information about the frequency of the channel may be included.
- the apparatus 100 for transmitting digital broadcast content according to an embodiment may add a control signal including 3D channel combining information to the digital broadcast signal according to an embodiment.
- a control signal including 3D channel combining information according to an embodiment may be inserted into an ATSC-based VSB data field synchronization signal.
- the control includes 3D channel combining information according to an embodiment in a spare region of the TPS information or the L1 signaling data of the DVB scheme. You can insert a signal.
- the apparatus 100 for transmitting digital broadcast content may transmit a digital broadcast signal including a control signal including 3D channel combining information according to an embodiment.
- 29 shows the structure of a VSB data field synchronization signal according to the ATSC scheme.
- the broadcast content may be modulated into a VSB signal and transmitted on an RF frequency.
- the size of one segment of the VSB data field sync signal 2900 is 832 symbols, the segment sync signal 2910, the random bit strings 2920, 2930, 2940, and 2950, the VSB mode information 2960, and the spare area 2970. It consists of.
- the apparatus 100 for transmitting digital broadcast content inserts the 3D channel combining information according to an embodiment into the spare area 2970 of the VSB data field synchronization signal 2900, thereby synthesizing the VSB data field synchronization signal 2900. ) Can be sent.
- the apparatus 200 for receiving digital broadcast content receives a VSB signal transmitted through an RF frequency channel, and from the spare area 2970 among the VSB data field synchronization signals 2900, according to an embodiment.
- the associated channel of the current channel may be retrieved, and 3D reproducible content may be received through the current channel and the associated channel.
- the digital broadcast content transmitting apparatus 100 may transmit TPS information that is a control signal.
- the bit string 3010 including bits 48 to 53 of the TPS information is allocated as a spare area.
- the apparatus 100 for transmitting digital broadcast content may insert a descriptor including 3D channel combining information according to an embodiment into the preliminary region bit string 3010 of the TPS information.
- the apparatus 200 for receiving digital broadcast content may determine an associated channel of a current channel by detecting a descriptor including 3D channel combining information according to an embodiment from the spare area bit string 3010 of the TPS information. have.
- 31 shows a structure of L1 signaling data according to a DVB scheme.
- the T2 frame 3110 transmitted according to the DVB scheme includes a P1 symbol region 3120, a P2 symbol region 3122, and a data symbol region 3124.
- the P1 symbol region 3120 is composed of a P1 signaling region 3130
- the P2 symbol region 3122 is composed of an L1-pre signaling region 3132 and an L1-post signaling region 3134.
- the L1-post signaling region 3134 includes a configurable region 3140, a dynamic region 3150, an extended region 3160, a CRC region 3170, and an L1 padding region 3180.
- the apparatus 100 for transmitting digital broadcast content may insert 3D channel combining information according to an embodiment into spare areas of the L1-pre signaling area 3132 and the L1-post signaling area 3134.
- the apparatus 200 for receiving digital broadcast content according to an embodiment may search for an associated channel by detecting 3D channel combining information according to an embodiment from a spare area of the L1-pre signaling area 3132.
- 32 and 33 illustrate signaling fields of L1 pre signaling data and L1 post signaling data.
- the digital broadcast content transmission apparatus 100 transmits 3D content according to a DVB-T2 scheme through non-adjacent channels coupled to each other, by using L1 pre-signaling data and L1 post-signaling data, According to an embodiment, 3D channel combining information may be transmitted.
- the apparatus 100 for transmitting digital broadcast content transmits 3D channel combining information according to an embodiment to a reserved area 'RESERVED' 3220 among signaling fields 3210 of the L1-pre signaling area 3132. Can be inserted.
- information about the frequency of the associated channel among the 3D channel combining information may be inserted into the 'FREQUENCY' 3330 among the signaling fields 3210 of the configurable region 3140 of the L1-post signaling region 3134.
- the apparatus 100 for transmitting digital broadcast content may be performed on 'NUM_RF' 3230 and 'CURRENT_RF_IDX' 3240 among the signaling fields 3210 of the L1-pre signaling area 3132.
- 3D channel combining information according to an example, information about the number of related channels and information about whether a current channel is a main channel may be inserted or interlocked.
- the apparatus 200 for receiving digital broadcasting content may detect 3D channel combining information according to an embodiment from the reserved area 'RESERVED' 3220 of the L1-pre signaling area 3132.
- the apparatus 200 for receiving digital broadcasting content may read information about a frequency of an associated channel from a 'FREQUENCY' 3330 of a settable area 3140 of the L1-post signaling area 3134. have.
- the apparatus 200 for receiving digital broadcast content may include 3D channel combining information according to an embodiment from the 'NUM_RF' 3230 and the 'CURRENT_RF_IDX' 3240 of the L1-pre signaling area 3132. Among them, information on the number of associated channels and information on whether the current channel is the primary channel may be read.
- the apparatus 200 for receiving digital broadcasting content may include information about whether a plurality of channels are combined from a spare region of an ATSC type VSC data field synchronization signal, a DVB type TPS information, or L1 signaling data.
- 'Ch_bonding_flag' ' Information' primary_ch_flag 'indicating whether the current channel is the primary channel, information' ch_extension_num 'on bandwidth size, information' adjacent_ch_bonding_flag 'on whether the associated channel is adjacent channel, information indicating whether the channel is a front or rear channel if the associated channel is adjacent channel.
- At least one of 'previous_ch_flag', 'next_ch_flag' and information 'ch_frequency' about the frequency of the associated channel may be detected to analyze a coupling relationship between channels according to an embodiment.
- the 'ch_bonding_flag' value is '1', this indicates that a plurality of channels are coupled, and when it is '0', the channels may be interpreted as not being coupled.
- the current channel may be interpreted as the primary channel, and if it is '0', it may be interpreted as the additional channel transmitting the additional video.
- the total bandwidth is interpreted as the bandwidth of a single channel, if '01' is the bandwidth of two channels, if '10' is the bandwidth of three channels and '11' It can be analyzed that it is the bandwidth of four channels.
- 'adjacent_ch_bonding_flag' If the value of 'adjacent_ch_bonding_flag' is '1', the current channel is interpreted to be combined with the adjacent channel. If the value is '0', the current channel is combined with the non-adjacent channel.
- 'adjacent_ch_bonding_flag' value is '1'
- 'previous_ch_flag' and 'next_ch_flag' can be detected. If the 'previous_ch_flag' value is '1', the current channel is combined with the previous channel, and the 'next_ch_flag' value is '1' can be read as the current channel is combined with the next channel.
- 'ch_frequency' may be detected, and the 'ch_frequency' value may indicate a frequency of a non-adjacent associated channel coupled with the current channel.
- 34 and 35 illustrate a case in which an associated channel of a current channel is not adjacent to each other, according to an exemplary embodiment.
- the bandwidth of each of the current channel 3410 and the associated channel 3420 is 6 MHz, and 3D broadcast content or UD-class broadcast content may be transmitted and received through a total bandwidth of 12 MHz due to channel combining.
- the current channel 3410 is the primary channel and is coupled to one associated channel 3420 adjacent to the current channel 3410 and the next channel, and the associated channel 3420 is the current one channel that is adjacent to the side information channel. Since it is combined with the channel 3410, 3D channel combining information for the current channel 3410 and the associated channel 3420 may be set as shown in Table 34.
- Each of the current channel 3510 and the associated channel 3520 has a bandwidth of 6 MHz, and digital broadcast content may be transmitted and received using a total bandwidth of 12 MHz due to channel combining.
- the current channel 3510 is combined with one associated channel 3520 that is a primary channel and not adjacent to the current channel 3510, and the associated channel 3520 is a current channel, which is one channel that is not adjacent as a side information channel ( Since 3510 is combined, the 3D channel combining information for the current channel 3510 and the associated channel 3520 may be set as shown in Table 35.
- 'ch_frequency' may be read from the PSIP information or SI information of the transport stream.
- the apparatus 100 for transmitting digital broadcast content may include at least one of 3D channel combining information according to an embodiment of at least one of ATSC-based PMT information, VCT information, DVB-based NIT information, and SDT information. Can also be inserted into the descriptor field.
- PMT information VCT information, NIT information or SDT information
- 'ch_bonding_flag' information 'primary_ch_flag' information
- 'ch_extension_num' information 'adjacent_ch_bonding_flag' information
- 'previous_ch_flag' information 'next_ch_flag' information
- 'ch_frequency' information Descriptors containing at least one of the above may be inserted.
- 'ch_bonding_flag' information, 'primary_ch_flag' information, 'ch_extension_num' information, 'adjacent_ch_bonding_flag' information, 'previous_ch_flag' information, and 'next_ch_flag' information are inserted into VSB data field synchronization signal or TPS information, and 'ch_frequency' information It may be inserted into a descriptor field of PMT information or VCT information of ATSC system or NIT information or SDT information of DVB system.
- the channel bonding service type 'channel bonding' is added to the reserved area of the service type information 'service_type' among the VCT information or the SDT information. service 'may be added.
- the channel combining service type 'channel in the spare area of the association type information' linkage_type 'of the association descriptor' linkage_descriptor 'of the NIT information is transmitted.
- 'bonding service' may be added.
- the apparatus 200 for receiving digital broadcast content may include 3D channel combining information according to an embodiment from at least one descriptor field among PMT information, VCT information, DVB method, NIT information, and SDT information. Can be extracted and read, and the three-dimensional content can be received by analyzing the coupling relationship between channels.
- the digital broadcast content transmitting apparatus 100 and the digital broadcasting content receiving apparatus 200 transmit and receive a broadcast stream using a plurality of channels simultaneously, the bandwidth is extended and the data rate is improved. do.
- a larger amount of data may be transmitted and received through interworking with adjacent channels as well as non-adjacent channels.
- the apparatus 100 for transmitting digital broadcast content and the apparatus 200 for receiving digital broadcast content according to an embodiment may add 3D channel combining information according to an embodiment to a control signal according to a conventional communication standard.
- the existing broadcast system that cannot interpret the 3D channel combining information according to an embodiment may ensure backward compatibility to receive digital broadcasting according to a control signal part according to a conventional communication standard.
- the apparatus 100 for transmitting digital broadcast content uses a control signal such as a VSB data field synchronization signal according to the ATSC scheme or TPS information according to the DVB scheme to adjust the bandwidth of a channel on which a broadcast stream is transmitted.
- the digital broadcast content receiving apparatus 200 may be recognized. Accordingly, the apparatus 200 for receiving digital broadcast content according to an embodiment analyzes a coupling relationship between channels in a faster time, searches for an associated channel required for three-dimensional reproduction of the current content of the current channel, and receives related content. can do.
- 36 is a flowchart of a method of transmitting digital broadcast content according to an embodiment.
- content including at least one of two-dimensional content and three-dimensional content is encoded, and a basestream including encoded data of the content is generated.
- service additional information including at least one of 2D / 3D content identification information, 2D / 3D content link information, and EPG 3D reproduction information of digital broadcast content may be generated.
- 2D / 3D content identification information according to an embodiment, 2D / 3D content link information according to an embodiment, and EPG 3D reproduction information according to an embodiment may be set for each service unit or event unit.
- the service additional information includes ATIP type PSIP information or DVB type SI information.
- 3D channel combining information may be inserted in the service additional information.
- 2D / 3D content identification information, 2D / 3D content link information, EPG 3D playback information, 3D channel combining information, etc. of the digital broadcasting content according to an embodiment may be EPG information among ATSC type PSIP information or DVB type SI information. It may be inserted into the service additional information including.
- a transport stream for transmitting digital broadcast content is generated by multiplexing the base stream and the service additional information.
- 3D channel combining information may be inserted into a control signal of a channel modulated signal carrying a transport stream and transmitted.
- FIG. 37 is a flowchart of a method of receiving digital broadcast content according to an embodiment.
- a basestream into which encoded data of content including at least one of two-dimensional content and three-dimensional content is inserted, and service additional information about digital broadcasting content are demultiplexed from the received transport stream.
- 3D channel combining information may be extracted from a control signal of a channel demodulation signal from which a transport stream is received.
- At least one of 2D / 3D content identification information, 2D / 3D content link information, and EPG 3D reproduction information is extracted from the service additional information.
- 3D channel combining information according to an embodiment may be extracted from the service additional information.
- 2D / 3D content identification information, 2D / 3D content link information, EPG 3D playback information, 3D channel combining information, etc. of the digital broadcasting content may include EPG information among ATSC type PSIP information or DVB type SI information. It may be extracted from the service additional information including.
- step 3730 encoded data of the content is extracted and decoded from the elementary stream, and the content is reconstructed.
- step 3780 the reconstructed content and the EPG screen are reproduced in two or three dimensions based on at least one of 2D / 3D content identification information, 2D / 3D content link information, and EPG 3D reproduction information.
- whether the current content is 2D content or 3D content may be displayed on the EPG screen.
- whether a service or an event is content that can be reproduced in three dimensions can be identified for each service unit or event unit.
- the screen may display whether 2D broadcast content or 3D broadcast content for each service or event.
- a three-dimensional channel EPG screen composed of only channels may be configured.
- the EPG screen may be reproduced in three dimensions together with the three-dimensional reproduction of the three-dimensional video content.
- the digital broadcast content transmitting apparatus 100 and the digital broadcasting content receiving apparatus 200 may be provided in a free space of service additional information or a control signal according to a conventional communication standard.
- 2D / 3D content identification information, 2D / 3D content link information, EPG 3D reproduction information, or 3D channel combining information is added. Therefore, even if the existing broadcast receiving system cannot interpret the newly allocated or defined 2D / 3D content identification information, 2D / 3D content link information, EPG 3D playback information, or 3D channel combining information according to an embodiment, the conventional communication standard Since the digital broadcast can be received by interpreting only the service additional information or a control signal, backward compatibility between the broadcasting systems can be guaranteed.
- any flow chart, flow chart, state diagram, pseudocode, etc. may be substantially represented on a computer readable medium, such that the computer or processor may be executed by such a computer or processor whether or not it is explicitly shown. It will be appreciated by those skilled in the art to represent the process. Therefore, the above-described embodiments of the present invention can be written as a program that can be executed in a computer, and can be implemented in a general-purpose digital computer which operates the program using a computer-readable recording medium.
- the computer-readable recording medium may include a storage medium such as a magnetic storage medium (eg, a ROM, a floppy disk, a hard disk, etc.) and an optical reading medium (eg, a CD-ROM, a DVD, etc.).
- a storage medium such as a magnetic storage medium (eg, a ROM, a floppy disk, a hard disk, etc.) and an optical reading medium (eg, a CD-ROM, a DVD, etc.).
- processor or “control unit” should not be construed as exclusively referring to hardware capable of executing software, and without limitation, digital signal processor (DSP) hardware, read-only for storing software. Memory (ROM), random access memory (RAM), and non-volatile storage.
- DSP digital signal processor
- an element represented as a means for performing a specific function encompasses any way of performing a specific function, and the element may be a combination of circuit elements performing a specific function, or performing a specific function. It may include any form of software, including firmware, microcode, etc., coupled with suitable circuitry to carry out the software for.
- the expression 'at least one of' means only the selection of the first option (A), or only the selection of the second listed option (B), or both. It is used to cover the selection of options (A and B).
- the expression 'at least one of' means only the selection of the first option (A), or only the selection of the second listed option (B), or both. It is used to cover the selection of options (A and B).
- only the selection of the first listed option (A), or the selection of the second listed option (B), or the third listed option (C ) Only the selection of the first and second listed options (A and B), only the selection of the second and third listed options (B and C), or the selection of all three options ( A, B, and C) may be encompassed. Even if more items are enumerated, it may be obviously extended to those skilled in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Library & Information Science (AREA)
- Business, Economics & Management (AREA)
- Finance (AREA)
- Strategic Management (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Description
service_type | Meaning |
0x00 | [Reserved] |
0x01 | Analog Television |
0x02 | ATSC Digital Television |
0x03 | ATSC Audio |
0x04 | ATSC Data Only Service |
0x05 | ATSC Software Download Service |
0x06 | Unassociated/Small Screen Service |
0x07 | Parameterizedl Service |
0x08-0x3F | - |
Syntax |
3d_linking_type_descriptor(){ |
descriptor_tag |
descriptor_length |
3d_linking_type |
reserved |
} |
3d_linking_type | Meaning |
0x01 | 동일 채널 내 3차원 부가정보 제공 |
0x02 | 다른 채널을 이용해서 3차원 부가정보 제공 |
0x03 | 다운로드 서비스를 통한 3차원 컨텐트 제공 |
0x04 | NRT 서비스 연동을 통한 3차원 컨텐트 제공 |
0x05 | 다른 채널을 통한 3차원 비디오 컨텐트 제공 |
Syntax |
channel_linking_descriptor(){ |
descriptor_tag |
descriptor_length |
if(3d_linking_type != 0x07) { |
link_major_number |
link_minor_number |
link_carrier_frequency |
link_program_number |
link_source_id |
link_url_indicator |
3d_linking_type |
reserved |
} |
if(link_url_indicator) { |
url_length |
for( k = 0; k< url_length; k++) |
link_source_URL |
} |
if(3d_linking_type == 0x03 || |
3d_linking == 0x04) |
link_service_start_time |
} |
Syntax |
... |
For( i=0; i<N; i++){ |
service_id |
reserved_future_use |
3d_service |
EIT_schedule_flag |
EIT_present_following_flag |
running_status |
free_CA_mode |
descriptor_loop_length |
for( j=0; j<N; j++){ |
descriptor() |
} |
... |
3d_service | Description |
0 | 2D or Main video service |
1 | Mixed 2D/3D service |
2 | 3D only service |
3 | Additional 3D service |
[4:15] | reserved |
3d_service | Description |
0 | 2D or 3D Main video service |
1 | Mixed 2D/3D service |
2 | 3D only service |
3 | Depth/disparity map |
4 | parallax |
5 | R video |
6 | R video + depth |
7 | R video + parallax |
Syntax |
3d_service_descriptor(){ |
descriptor_tag |
descriptor_length |
3d_service |
reserved |
} |
Syntax |
3d_event_descriptor(){ |
descriptor_tag |
descriptor_length |
3d_event |
reserved |
} |
3d_event | Description |
0 | 2D or Main video event |
1 | Mixed 2D/3D event |
2 | 3D only event |
3 | Additional 3D event |
[4:15] | reserved |
3d_event | Description |
0 | 2D or 3D Main video event |
1 | Mixed 2D/3D event |
2 | 3D only event |
3 | Depth/disparity map |
4 | parallax |
5 | R video |
6 | R video + depth |
7 | R video + parallax |
Syntax |
component_descriptor () { |
descriptor_tag |
descriptor_length |
reserved_future_use |
stream_content |
component_type |
component_tag |
ISO_639_language code |
for (i=0;i<N;i++) { |
text char |
} |
} |
Stream_content | Component_type | Description |
0x00 | 0x00 to 0xFF | reserved for future use |
0x01 | 0x00 | reserved for future use |
0x01 | 0x01 | MPEG-2 video, 4:3 aspect ratio, 25 Hz |
0x01 | 0x02 | MPEG-2 video, 16:9 aspect ratio with pan vector, 25Hz |
0x01 | 0x03 | MPEG-2 video, 16:9 aspect ratio without pan vector, 25Hz |
0x01 | 0x04 | MPEG-2 video, > 16:9 aspect ratio, 25Hz |
0x01 | 0x05 | MPEG-2 video, 4:3 aspect ratio, 30 Hz |
0x01 | 0x06 | MPEG-2 video, 16:9 aspect ratio with pan vector, 30Hz |
0x01 | 0x07 | MPEG-2 video, 16:9 aspect ratio without pan vector, 30Hz |
0x01 | 0x08 | MPEG-2 video, > 16:9 aspect ratio, 30Hz |
0x01 | 0x09 | MPEG-2 high definition video, 4:3 aspect ratio, 25 Hz |
0x01 | 0x0A | MPEG-2 high definition video, 16:9 aspect ratio with pan vector, 25Hz |
0x01 | 0x0B | MPEG-2 high definition video, 16:9 aspect ratio without pan vector, 25Hz |
0x01 | 0x0C | MPEG-2 high definition video, > 16:9 aspect ratio, 25Hz |
Stream_content | Component_type | Description |
0x01 | 0x11 | MPEG-2 half 3D video, 4:3 aspect ratio, 25 Hz |
0x01 | 0x12 | MPEG-2 half 3D video, 16:9 aspect ratio with pan vector, 25Hz |
0x01 | 0x13 | MPEG-2 half 3D video, 16:9 aspect ratio without pan vector, 25Hz |
0x01 | 0x14 | MPEG-2 half 3D video, > 16:9 aspect ratio, 25Hz |
0x01 | 0x15 | MPEG-2 half 3D video, 4:3 aspect ratio, 30 Hz |
0x01 | 0x16 | MPEG-2 half 3D video, 16:9 aspect ratio with pan vector, 30Hz |
0x01 | 0x17 | MPEG-2 half 3D video, 16:9 aspect ratio without pan vector, 30Hz |
0x01 | 0x18 | MPEG-2 half 3D video, > 16:9 aspect ratio, 30Hz |
0x01 | 0x19 | MPEG-2 3D video, 4:3 aspect ratio, 25 Hz |
0x01 | 0x1A | MPEG-2 3D video, 16:9 aspect ratio with pan vector, 25Hz |
0x01 | 0x1B | MPEG-2 3D video, 16:9 aspect ratio without pan vector, 25Hz |
0x01 | 0x1C | MPEG-2 3D video, > 16:9 aspect ratio, 25Hz |
0x01 | 0x1D | MPEG-2 3D video, 4:3 aspect ratio, 30 Hz |
0x01 | 0x1E | MPEG-2 3D video, 16:9 aspect ratio with pan vector, 30Hz |
0x01 | 0x1F | MPEG-2 3D video, 16:9 aspect ratio without pan vector, 30Hz |
0x01 | 0x20 | MPEG-2 3D video, > 16:9 aspect ratio, 30Hz |
Stream_content | Component_type | Description |
0x05 | 0x11 | H.264/AVC half 3D video, 4:3 aspect ratio, 25 Hz |
0x05 | 0x12 | H.264/AVC half 3D video, 16:9 aspect ratio with pan vector, 25Hz |
0x05 | 0x13 | H.264/AVC half 3D video, 16:9 aspect ratio without pan vector, 25Hz |
0x05 | 0x14 | H.264/AVC half 3D video, > 16:9 aspect ratio, 25Hz |
0x05 | 0x15 | H.264/AVC half 3D video, 4:3 aspect ratio, 30 Hz |
0x05 | 0x16 | H.264/AVC half 3D video, 16:9 aspect ratio with pan vector, 30Hz |
0x05 | 0x17 | H.264/AVC half 3D video, 16:9 aspect ratio without pan vector, 30Hz |
0x05 | 0x18 | H.264/AVC half 3D video, > 16:9 aspect ratio, 30Hz |
0x05 | 0x19 | H.264/AVC 3D video, 4:3 aspect ratio, 25 Hz |
0x05 | 0x1A | H.264/AVC 3D video, 16:9 aspect ratio with pan vector, 25Hz |
0x05 | 0x1B | H.264/AVC 3D video, 16:9 aspect ratio without pan vector, 25Hz |
0x05 | 0x1C | H.264/AVC 3D video, > 16:9 aspect ratio, 25Hz |
0x05 | 0x1D | H.264/AVC 3D video, 4:3 aspect ratio, 30 Hz |
0x05 | 0x1E | H.264/AVC 3D video, 16:9 aspect ratio with pan vector, 30Hz |
0x05 | 0x1F | H.264/AVC 3D video, 16:9 aspect ratio without pan vector, 30Hz |
0x05 | 0x20 | H.264/AVC 3D video, > 16:9 aspect ratio, 30Hz |
Stream_content | Component_type | Description |
0x09 (reserved) | 0x00 | 2D video |
0x09 | 0x01 | 3D video |
0x09 | 0x02 | Mixed 2D/3D video |
0x09 | 0x03 | Additional 3D video (depth or disparity or R video or dependent view or sub view) |
0x09 | 0x04 | 3D subtitle |
0x09 | 0x05 to 0xFF | reserved for future use |
Syntax |
Component_descriptor(){ |
descriptor_tag |
descriptor_length |
3d_flag |
3d_event |
stream_content |
component_type |
component_tag |
ISO_639_language_code |
for(i=0; i<N; i++){ |
text_char |
} |
Syntax |
content_descriptor () { |
descriptor_tag |
descriptor_length |
for (i=0;i<N;i++) { |
content_nibble_level_1 |
content_nibble_level_2 |
user_byte |
} |
} |
Content_nibble_level 1 | Content_nibble_level 2 | Description |
0x01 | 0x09 | 3D Movie/Drama |
0x02 | 0x05 | 3D News/Current affairs |
0x03 | 0x05 | 3D Show/Game show |
... | ... | ... |
Content_nibble_level 1 | Content_nibble_level 2 | Description |
0x0C | 0x01 | 3D Movie/Drama |
0x0C | 0x02 | 3D News/Current affairs |
0x0C | 0x03 | 3D Show/Game show |
... | ... | ... |
3d_service_type | Description |
0 | 2D or Main service |
1 | 3D only service |
2 | additional 3D service |
[3:7] | reserved |
3d_format | Description |
0 | 2D video |
1 | L video+ R video ( half or full ) |
2 | L video |
3 | R video |
4 | Depth/disparity map |
5 | parallax |
6 | R video + depth |
7 | R video + parallax |
8 | L video + depth |
9 | L video + parallax |
[10:15] | Reserved |
Syntax |
linkage_descriptor() { |
descriptor_tag |
descriptor_length |
transport_stream_id |
original_network_id |
service_id |
linkage_type |
if(linkage_type == 0x0E) { |
3d_viewing_listed |
3d_simulcast |
3d_service_link_type |
3d_link_format |
additional_info() |
} |
} |
3d_service_link_type | Description |
0 | reserved |
1 | 3D only service |
2 | additional 3D service |
3 | reserved |
3d_link_format | Description |
0 | reserved |
1 | L video+ R video ( half or full ) |
2 | L video |
3 | R video |
4 | Depth/disparity map |
5 | parallax |
6 | R video + depth |
7 | R video + parallax |
8 | L video + depth |
9 | L video + parallax |
[10:15] | Reserved |
Syntax |
3d_event_descriptor(){ |
descriptor_tag |
descriptor_length |
3d_event_type |
3d_format |
reserved |
} |
3d_event_type | Description |
0 | 2D or Main event |
1 | 3D only event |
2 | additional 3D event |
[3:7] | reserved |
Syntax |
linkage_descriptor() { |
descriptor_tag |
descriptor_length |
transport_stream_id |
original_network_id |
service_id |
linkage_type |
if(linkage_type == 0x0E) { |
3d_viewing_event_id |
3d_viewing_listed |
3d_simulcast |
3d_event_link_type |
3d_link_format |
additional_info() |
} |
} |
3d_event_link_type | Description |
0 | reserved |
1 | 3D only event |
2 | additional 3D event |
3 | reserved |
service_list_descriptor( ) |
{ |
service_id #1 |
service_id #2 |
service_id #3 |
} |
... |
linkage_descriptor( ) #1 |
{ |
service_id #1 |
... |
} |
linkage_descriptor( ) #2 |
{ |
service_id #2 |
... |
} |
linkage_descriptor( ) #3 |
{ |
service_id #3 |
... |
} |
Syntax |
ts_channel_descriptor(){ |
descriptor_tag |
descriptor_length |
for (i=0 ; i<N ; i++){ |
current_service_id |
current_service_type |
current_3d_format |
target_original_netwok_id |
target_transport_stream_id |
target_service_id |
target_service_viewing_listed |
target_service_simulcast |
target_service_type |
target_3d_format |
reserved |
} |
Syntax |
3D_EPG_descriptor() { |
descriptor_tag |
descriptor_length |
3D_EPG_offset |
Video_Flat |
reserved |
additional_data() |
} |
Video_Flat | Meaning |
0 | 방송 영상을 3D로 유지 |
1 | 방송 영상을 2D로 전환 |
3D 채널 결합 정보 | 현재 채널(3410) 값 | 연관 채널(3420) 값 |
ch_bonding_flag | 1 | 1 |
ch_extension_num | 1 | 1 |
adjacent_ch_bonding_flag | 1 | 1 |
primary_ch_flag | 1 | 0 |
previous_ch_flag | 0 | 1 |
next_ch_flag | 1 | 0 |
3D 채널 결합 정보 | 현재 채널(3510) 값 | 연관 채널(3520) 값 |
ch_bonding_flag | 1 | 1 |
ch_extension_num | 1 | 1 |
adjacent_ch_bonding_flag | 0 | 0 |
primary_ch_flag | 1 | 0 |
ch_frequency | 연관 채널(3520)의 RF값 | 현재 채널(3510)의 RF값 |
Claims (15)
- 2차원 컨텐트 또는 3차원 컨텐트를 제공하기 위한 디지털 방송 컨텐트의 전송 방법에 있어서,상기 2차원 컨텐트 및 3차원 컨텐트 중에서 적어도 하나를 포함하는 컨텐트를 부호화하고, 상기 컨텐트의 부호화된 데이터를 포함하는 기본스트림을 생성하는 단계;상기 디지털 방송 컨텐트의 EPG(Electronic Program Guide) 정보를 포함하는 서비스 부가정보에, 상기 2차원 컨텐트 또는 3차원 컨텐트의 재생 방식을 나타내기 위한 2D/3D 컨텐트 식별 정보, 상기 2차원 컨텐트 및 상기 3차원 컨텐트의 연관 관계를 나타내는 2D/3D 컨텐트 링크 정보 및 상기 EPG 정보가 표시되는 EPG 화면을 3차원으로 재생하기 위한 EPG 3D 재생 정보 중 적어도 하나를 삽입하는 단계; 및상기 기본스트림 및 상기 서비스 부가정보를 다중화하여 전송스트림을 생성하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 전송 방법.
- 제 1 항에 있어서, 상기 서비스 부가정보 생성 단계는,상기 디지털 방송 컨텐트의 서비스 단위 또는 이벤트 단위마다 현재 컨텐트에 대한 상기 2D/3D 컨텐트 식별 정보, 상기 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중 적어도 하나를 결정하여 상기 서비스 부가정보에 삽입하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 전송 방법.
- 제 2 항에 있어서, 상기 서비스 부가정보 생성 단계는,ATSC(Advanced Television System Committee) 방식의 PSIP(Program Specific Information Protocol) 정보 중에서 VCT(Virtual Channel Table) 정보, EIT(Event Information Table) 정보 ETT(Extended Text Table) 정보, RRT(Rating Region Table) 정보 및 STT(System Time Table) 및 DVB(Digital Video Broadcasting) 방식의 SI(Service Information) 정보 중에서 BAT(Bouquet Association Table) 정보, NIT(Network Information Table), SDT(Service Description Table) 정보 및 EIT 정보 중 적어도 하나에, 상기 2D/3D 컨텐트 식별 정보, 상기 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중 적어도 하나를 삽입하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 전송 방법.
- 제 1 항에 있어서, 상기 디지털 방송 컨텐트 전송 방법은,현재 채널을 통해 전송되는 현재 컨텐트와 연관된 연관 3차원 컨텐트를 전송하기 위한 연관 채널을 결정하는 단계를 더 포함하고,상기 서비스 부가정보 생성 단계는, 상기 현재 채널과 상기 연관 채널 간의 결합 관계에 대한 정보를 나타내는 3D 채널 결합 정보를 상기 서비스 부가정보에 삽입하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 전송 방법.
- 제 4 항에 있어서, 상기 서비스 부가정보 생성 단계는,ATSC 방식에 따른 VSB 데이터 필드 동기 신호의 필드 동기 신호 및 PSIP 정보, DVB 방식의 TPS(Transmission Parameter Signalling) 정보, L1 시그널링 데이터 및 SI 정보 중 적어도 하나에 상기 3D 채널 결합 정보를 삽입하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 전송 방법.
- 2차원 컨텐트 또는 3차원 컨텐트를 제공하기 위한 디지털 방송 컨텐트의 수신 방법에 있어서,수신된 전송스트림으로부터, 상기 2차원 컨텐트 및 3차원 컨텐트 중에서 적어도 하나를 포함하는 컨텐트의 부호화된 데이터가 포함된 기본스트림과, 상기 디지털 방송 컨텐트에 대한 서비스 부가정보를 역다중화하는 단계;상기 서비스 부가정보로부터, 상기 디지털 방송 컨텐트의 EPG 화면을 구성하기 위한 EPG 정보, 상기 2차원 컨텐트 또는 상기 3차원 컨텐트의 재생 방식을 나타내는 2D/3D 컨텐트 식별 정보, 상기 2차원 컨텐트 및 상기 3차원 컨텐트의 연관 관계를 나타내는 2D/3D 컨텐트 링크 정보 및 상기 EPG 화면을 3차원으로 재생하기 위한 EPG 3D 재생 정보 중 적어도 하나를 추출하는 단계;상기 기본스트림으로부터 상기 컨텐트의 부호화된 데이터를 추출하여 복호화하여 상기 컨텐트를 복원하는 단계; 및상기 2D/3D 컨텐트 식별 정보, 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중에서 적어도 하나에 기초하여, 상기 복원된 컨텐트와 상기 EPG 화면을 2차원 또는 3차원으로 재생하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 방법.
- 제 6 항에 있어서,상기 서비스 부가정보 추출 단계는, 상기 서비스 부가정보로부터, 상기 디지털 방송 컨텐트의 서비스 단위 또는 이벤트 단위마다 현재 컨텐트에 대한 상기 2D/3D 컨텐트 식별 정보, 상기 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중 적어도 하나를 추출하는 단계를 포함하고,상기 재생 단계는, 상기 2D/3D 컨텐트 식별 정보, 상기 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중 적어도 하나에 기초하여, 상기 EPG 화면에 현재 컨텐트가 상기 2차원 컨텐트 또는 상기 3차원 컨텐트인지 여부를 표시하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 방법.
- 제 7 항에 있어서, 상기 서비스 부가정보 추출 단계는,ATSC 방식의 PSIP 정보 중에서 VCT 정보, EIT 정보, ETT 정보, RRT 정보 및 STT 정보와, DVB 방식의 SI 정보 중에서 BAT 정보, NIT 정보, SDT 정보 및 EIT 정보 중 적어도 하나로부터 상기 2D/3D 컨텐트 식별 정보, 상기 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중 적어도 하나를 추출하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 방법.
- 제 7 항에 있어서, 상기 재생 단계는,상기 2D/3D 컨텐트 식별 정보 및 상기 2D/3D 컨텐트 링크 정보 중 적어도 하나를 판독하여, 채널 단위, 서비스 단위 및 이벤트 단위 중 적어도 하나의 단위로 3차원 컨텐트를 선별하여, 상기 EPG 화면에 상기 선별된 3차원 컨텐트를 포함하는 3차원 서비스 정보를 표시하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 방법.
- 제 6 항에 있어서, 상기 디지털 방송 컨텐트 수신 방법은,상기 서비스 부가정보로부터, 상기 현재 채널을 통해 전송되는 현재 컨텐트와 연관된 연관 3차원 컨텐트를 전송하기 위한 연관 채널과 상기 현재 채널 간의 결합 관계에 대한 정보를 나타내는 3D 채널 결합 정보를 추출하는 단계; 및상기 3D 채널 결합 정보에 기초하여, 상기 연관 채널을 검출하는 단계를 더 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 방법.
- 제 10 항에 있어서, 상기 3D 채널 결합 정보 추출 단계는,ATSC 방식에 따른 VSB 데이터 필드 동기 신호의 필드 동기 신호 및 PSIP 정보, DVB 방식의 TPS 정보, L1 시그널링 데이터 및 SI 정보 중 적어도 하나로부터 상기 3D 채널 결합 정보를 추출하는 단계를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 방법.
- 2차원 컨텐트 또는 3차원 컨텐트를 제공하기 위한 디지털 방송 컨텐트 전송 장치에 있어서,상기 2차원 컨텐트 및 3차원 컨텐트 중에서 적어도 하나를 포함하는 컨텐트를 부호화하고, 상기 컨텐트의 부호화된 데이터를 포함하는 기본스트림을 생성하는 기본스트림 생성부;상기 디지털 방송 컨텐트의 EPG 정보를 포함하는 서비스 부가정보에, 상기 2차원 컨텐트 또는 3차원 컨텐트의 재생 방식을 나타내기 위한 2D/3D 컨텐트 식별 정보, 상기 2차원 컨텐트 및 상기 3차원 컨텐트의 연관 관계를 나타내는 2D/3D 컨텐트 링크 정보 및 상기 EPG 정보가 표시되는 EPG 화면을 3차원으로 재생하기 위한 EPG 3D 재생 정보 중 적어도 하나를 삽입하는 서비스 부가정보 생성부; 및상기 기본스트림 및 상기 서비스 부가정보를 다중화하여 전송스트림을 생성하는 전송스트림 생성부를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 전송 장치.
- 2차원 컨텐트 또는 3차원 컨텐트를 제공하기 위한 디지털 방송 컨텐트 수신 장치에 있어서,수신된 전송스트림으로부터, 상기 2차원 컨텐트 및 3차원 컨텐트 중에서 적어도 하나를 포함하는 컨텐트의 부호화된 데이터를 포함하는 기본스트림과, 상기 디지털 방송 컨텐트에 대한 서비스 부가정보를 역다중화하는 전송스트림 역다중화부;상기 서비스 부가정보로부터, 상기 디지털 방송 컨텐트의 EPG 화면을 구성하기 위한 EPG 정보, 상기 2차원 컨텐트 또는 상기 3차원 컨텐트의 재생 방식을 나타내는 2D/3D 컨텐트 식별 정보, 상기 2차원 컨텐트 및 상기 3차원 컨텐트의 연관 관계를 나타내는 2D/3D 컨텐트 링크 정보 및 상기 EPG 화면을 3차원으로 재생하기 위한 EPG 3D 재생 정보 중 적어도 하나를 추출하는 서비스 부가정보 추출부;상기 기본스트림으로부터 상기 컨텐트의 부호화된 데이터를 추출하여 복호화하여 상기 컨텐트를 복원하는 컨텐트 복원부; 및상기 2D/3D 컨텐트 식별 정보, 2D/3D 컨텐트 링크 정보 및 상기 EPG 3D 재생 정보 중에서 적어도 하나에 기초하여, 상기 복원된 컨텐트를 2차원 또는 3차원으로 재생하는 재생부를 포함하는 것을 특징으로 하는 디지털 방송 컨텐트 수신 장치.
- 제 1 항의 디지털 방송 컨텐트 전송 방법을 컴퓨터로 구현하기 위한 프로그램이 기록된 컴퓨터로 판독 가능한 기록매체.
- 제 6 항의 디지털 방송 컨텐트 수신 방법을 컴퓨터로 구현하기 위한 프로그램이 기록된 컴퓨터로 판독 가능한 기록매체.
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EP11763086.3A EP2544447A4 (en) | 2010-04-02 | 2011-04-01 | METHOD AND APPARATUS FOR SENDING DIGITAL BROADCAST CONTENT TO PROVIDE TWO-DIMENSIONAL AND THREE-DIMENSIONAL CONTENT, AND METHOD AND APPARATUS FOR RECEIVING DIGITAL BROADCAST CONTENT |
BR112012025145A BR112012025145A2 (pt) | 2010-04-02 | 2011-04-01 | método de transmissão de conteúdos de transmissão digital para fornecimento de conteúdo em 2d ou de conteúdo em 3d, método de receber o conteúdo em 2d ou de transmissão digital para fornecimento de conteúdo em 2d ou deconteúdo 3d, e mídia de gravação legível por computador. |
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- 2011-04-01 CN CN201510201071.2A patent/CN104853176A/zh active Pending
- 2011-04-01 BR BR112012025145A patent/BR112012025145A2/pt not_active IP Right Cessation
- 2011-04-01 KR KR1020110030289A patent/KR20110111335A/ko not_active Application Discontinuation
- 2011-04-01 WO PCT/KR2011/002296 patent/WO2011122914A2/ko active Application Filing
- 2011-04-01 JP JP2013502496A patent/JP5964811B2/ja not_active Expired - Fee Related
- 2011-04-01 EP EP11763086.3A patent/EP2544447A4/en not_active Ceased
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Also Published As
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US20130081087A1 (en) | 2013-03-28 |
CN104853176A (zh) | 2015-08-19 |
BR112012025145A2 (pt) | 2017-06-27 |
EP2544447A4 (en) | 2014-06-11 |
CN102918857A (zh) | 2013-02-06 |
EP2544447A2 (en) | 2013-01-09 |
WO2011122914A3 (ko) | 2011-12-29 |
KR20110111335A (ko) | 2011-10-11 |
JP2013524620A (ja) | 2013-06-17 |
JP5964811B2 (ja) | 2016-08-03 |
CN102918857B (zh) | 2015-11-25 |
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