KR20110053190A - Apparatus and method for authoring data in a communication system - Google Patents

Abstract

PURPOSE: A data authoring device and method thereof in a communication system which uses meta data are provided to supply various contents by authoring various information to meta data based on DMB ECG XML. CONSTITUTION: An extracting unit(120) receives medium corresponding to content and extracts content information. A generating unit(130) generates metadata of DMB(Digital Multimedia Broadcasting) ECG(Electronic Content Guide) XML(eXtensible Markup Language) base including the content information. A processing unit(110) visualizes the content of metadata through a UI(User Interface) and edits the metadata on a template.

Description

Apparatus and method for authoring data in a communication system}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system. In particular, data for authoring metadata on content in order to provide users with various types of user-friendly content corresponding to the content needs of users in a digital broadcasting system. An authoring apparatus and method.

In the current communication system, active researches are being conducted to provide users with services of various quality of service (QoS) having a high transmission speed (hereinafter referred to as 'QoS'). As an example of such a communication system, methods for rapidly transmitting various types of content through limited resources have been proposed.

In addition, the current digital broadcasting system needs methods for providing users with more various types of digital broadcasting contents, and in particular, methods for providing user-friendly broadcasting contents corresponding to service requirements of users. For example, in an example of a digital broadcasting system, in digital multimedia broadcasting (DMB), a DMB electronic program guide (EPG: Electronic) is used as information about DMB contents when a DMB service is provided to users. Program Guide, hereinafter referred to as 'EPG').

However, users receiving broadcast services through such digital broadcasting systems, particularly DMB systems, are requesting to provide more various types of broadcasting services, that is, contents required for providing contents in current digital broadcasting systems. There is a limit to the information provided. In other words, as described above, the DMB EPG, which is essential when the DMB system provides the DMB contents, does not provide all the information on the various contents according to the various contents needs of the users, and in particular, It does not provide efficiency in accessing, consuming, and storing content.

Accordingly, in a communication system such as a digital broadcasting system, users can efficiently access, consume, and store the content that is required by the users who request various types of contents, that is, various types of user-friendly. In order to provide content to users, there is a need for a method of authoring data about content, that is, metadata.

Accordingly, an object of the present invention is to provide a data authoring apparatus and method in a communication system.

Another object of the present invention is to provide an apparatus and method for authoring metadata on contents in a digital broadcasting system.

Another object of the present invention is to provide an apparatus and method for authoring metadata for various contents in order to provide various contents in a digital broadcasting system in a user-friendly manner corresponding to various contents needs of users.

In addition, another object of the present invention is to extend digital multimedia broadcasting (DMB) electronic content guide (ECG) metadata for various types of content to be provided to users in a digital broadcasting system. An apparatus and method for authoring based on XML (eXtensible Markup Language) is provided.

In accordance with an aspect of the present invention, there is provided a data authoring apparatus in a communication system, the apparatus comprising: an extracting unit configured to receive a media corresponding to a content and extract content information on the content from the input media; Generation for generating metadata based on Digital Multimedia Broadcasting (DMB) Electronic Content Guide (ECG) Extended Markup Language (XML) including the extracted content information. part; And a processor configured to process the user interface to generate and edit the metadata on a template by visualizing the contents of the metadata through a user interface.

According to an aspect of the present invention, there is provided a method of authoring data in a communication system, the method comprising: receiving media corresponding to content; Extracting content detail information and a segment of the content from the input media; Processing a user interface for the content; Visualize on a template through the user interface, and include basic electronic content guide (ECG) metadata, segment metadata, package metadata, and digital multimedia broadcasting (DMB) including the content details and segments. Generating and editing Digital Format Broadcasting (AF) application format (AF) metadata, respectively; And authoring metadata based on DMB ECG Extensible Markup Language (XML) through the basic ECG metadata, the segment metadata, the package metadata, and the DMB AF metadata. .

According to the present invention, metadata for various types of contents corresponding to the needs of users in a communication system can be converted into Digital Multimedia Broadcasting (DMB) Electronic Content Guide (ECG) Extended Markup Language ( By authoring based on XML (eXtensible Markup Language), it provides users with user-friendly contents and efficiently accesses, consumes and stores various types of contents requested by users. In addition, the present invention can provide a richer and more diverse content centered on users by authoring a variety of information about the content in the metadata based on the digital multimedia broadcasting electronic content guide extension markup language.

1 is a diagram schematically illustrating a structure of a metadata authoring apparatus in a communication system according to an exemplary embodiment of the present invention.
2 and 3 schematically illustrate the DMB ECG XML structure of metadata in a communication system according to an embodiment of the present invention.
4 through 9 are diagrams for describing metadata authoring in a communication system according to an exemplary embodiment of the present invention.
10 to 12 are diagrams for explaining metadata consumption in a communication system according to an embodiment of the present invention.
13 is a view schematically illustrating an operation process of a metadata authoring apparatus in a communication system according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

The present invention provides a metadata system for providing contents of various types of contents in a communication system such as a digital broadcasting system in order to provide the various types of contents in a user-centered manner, that is, user friendly. We propose a data authoring apparatus and method for authoring metadata). Here, according to an embodiment of the present invention, various types of DMB content corresponding to various content requirements of users in a digital broadcasting system, for example, a digital multimedia broadcasting (DMB) system When providing the information on the DMB content, DMB Electronic Content Guide (ECG) including a DMB Electronic Program Guide (EPG) (hereinafter referred to as "EPG") Author metadata for content based on an extensible markup language (XML: hereinafter referred to as XML). In an embodiment of the present invention to be described below, as an example of a communication system, metadata of content is described based on authoring in a digital broadcasting system, but the data authoring apparatus and method proposed by the present invention can be applied to other communication systems.

In addition, according to an embodiment of the present invention, in order to efficiently access, consume, and store the content requested by the user according to the user's request for the various types of content, that is, the user-friendly user-friendly variety Author metadata for content, such as DMB ECG metadata, to provide forms of content to users. Here, in the embodiment of the present invention, by re-editing and authoring the previously authored metadata when authoring the metadata, by supporting the reusability of the metadata, and by generating and interworking the metadata for the unit program of the content It supports the media processing of metadata, and also supports the automation of metadata authoring through a tool for segment metadata authoring, and the visualization of metadata contents and editing on visualized templates.

In addition, in the embodiment of the present invention, when authoring the metadata of the information on the DMB ECG AML-based content, the DMB ECG XML includes a service function provided by the DMB EPG, and searches and browses to a specific segment unit in the content program. (browsing) enables users to access, consume, and store the desired content more efficiently, thereby providing an improved service in the DMB EPG. In addition, the DMB ECG XML includes a file format of a DMB application format (AF), which combines all content contents in a single format. The metadata created based on the DMB ECG XML provides customized services to users. At this time, the metadata is generated by creating a new type of metadata or re-editing the previously generated metadata to describe detailed information about the content. Author the data. Here, in the embodiment of the present invention, the DMB ECG metadata and the DMB AF for the content are authored to provide user-friendly content.

In addition, in an embodiment of the present invention, as a terminal that receives content and provides the content to users is improved in network connection, mass storage, and data processing capability, the terminal provides more various types of content through the terminal. To this end, the metadata for the content is authored based on the DMB ECG XML, and the metadata is transmitted to the terminal through the multiplexed stream, that is, multiplexed with the content stream. In particular, in the embodiment of the present invention, in order to meet the needs of users for the new service and to activate the DMB broadcasting service, by using a personalized broadcasting consumption environment in which the DMB broadcasting network and the communication network are converged, optimization of users' needs, tastes, environments, etc. It provides a customized content, and provides a user-customized viewing broadcast service by the metadata to provide a new broadcast service of a combination of such content and data services. Here, the user can efficiently search for, acquire, and consume content desired by the user using terminals of various access methods anytime and anywhere through the above-described customized viewing type broadcasting service. Author metadata based on DMB ECG XML.

In addition, according to an embodiment of the present invention, as content is provided through metadata authored on the basis of DMB ECG XML, the user desires to search and browse to a specific segment unit in the program while functionally accepting the DMB EPG-based service. Provides extended services to access, consume, and store content more efficiently. Here, in the embodiment of the present invention, the broadcast service is basically an extended service provided as described above and broadcasts in a personal digital recorder (PDR) environment having a storage device. It includes a service that can consume the content at the time desired by the viewer without being limited to the programming time. In addition, the DMB ECG XML for authoring metadata about content to provide such a broadcast service includes and supports a file format of DMB AF that combines all content contents in a single format. That is, in an embodiment of the present invention, in order to provide various types of contents in a user-friendly manner, DMB ECG metadata and DMB AF for contents are authored based on DMB ECG XML. Next, an apparatus for authoring metadata about content in a communication system, for example, a digital broadcasting system, according to an embodiment of the present invention will be described in more detail with reference to FIG. 1.

1 is a diagram schematically illustrating a structure of a metadata authoring apparatus in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the metadata authoring apparatus supports reusability of metadata by reediting and authoring previously authored metadata when authoring metadata, and also provides metadata on a unit program of content. It supports the media processing of metadata by creating and linking it, and also supports the automation of metadata authoring through tools for segment metadata authoring, and edits the contents of metadata on visualized and visualized templates. Support. To this end, the metadata authoring apparatus, from the media (160) of the various content to be provided to the user in accordance with the user's request, the content information for the content, for example, Table of Contents (TOC) , An extractor 120 for extracting the term "TOC", a generator 130 for generating the XML 180 for metadata creation of the content, and managing the metadata for the content ( The management unit 150 for metadata management, the interlocking unit 140 for supporting the interworking between the management unit 150 for managing the metadata and the generation unit 140 for authoring the metadata, and the time of authoring the metadata A processing unit 110 for processing an interface, and a display unit 190 for displaying the authoring environment of the metadata.

The extractor 120 receives the media 160, extracts the content information of the content, for example, the TOC of the content from the input media 160, and thus extracts the segment of the content as detailed information about the content. Extract. Here, when the extraction unit 130 receives metadata stored in a memory or a database from the memory or the database as the media 160, the extractor 130 extracts the content information and outputs the content information to the generation unit 130 or users. When the content to be provided to the media is input to the media 160, the TOC and the segment are extracted as the content information, and the output is output to the generation unit 130.

For example, the extractor 120 may include information on various types of contents requested by users, for example, detailed information about contents such as broadcast programs and on demand programs, group information of contents, content organization information, In terms of channel information and portal service information, content information by time section, electronic coupon information, package information for grouping various types of content into one, the user's content viewing history and preference information, genre or content type, etc. The above-described information is extracted so that information on the classification scheme for the information is included in the metadata. That is, the extractor 120 is information on various types of contents requested by users, and includes detailed information about contents such as broadcast programs and on-demand programs, group information of contents, content organization information, channel information, and portals. In the classification system for service information, information on time intervals of contents, electronic coupon information, package information for grouping various types of content into one, and user's content viewing history and preference information, terms representing genre or content type, etc. Extract information about

In addition, the extraction unit 120, the physical location of the content from the content identifier in the metadata, for example, the broadcast time of the content, a uniform resource locator (URL: Uniform Resource Locator, hereinafter referred to as "URL"), etc. The content identifier and the physical location of the content are extracted so that the content referencing XML used to obtain the content is included.

The generation unit 130 receives the segment and schema XML (schema XML) 170 extracted by the extraction unit 130 and generates and outputs the XML 180 and the schema XML 170. Here, the generation unit 130 receives the metadata document as metadata previously written, that is, DMB ECG XML-based metadata through the extraction unit 120, and also receives the schema XML 170 as a schema document. It receives the input, and generates new metadata through the input data or re-edit the previously authored metadata to output the XML 180 as metadata based on DMB ECG XML. In this case, the previously authored metadata is stored in a memory or a database, and is input to the generation unit 130 through the extraction unit 120 through the media 160.

In addition, the generation unit 130 is information on various types of contents requested by users, and includes detailed information about contents such as broadcast programs and on-demand programs, group information of contents, content organization information, channel information, and portals. In the classification system for service information, information on time intervals of contents, electronic coupon information, package information for grouping various types of content into one, and user's content viewing history and preference information, terms representing genre or content type, etc. Generate metadata including information about In addition, the generation unit 130 generates metadata including content referencing XML used to obtain a broadcast time, a URL, etc. of the content as a physical location of the content from the content identifier. Here, the generation unit 130 generates metadata based on the DMB ECG XML. At this time, the final meta based on the DMB ECG XML is generated and edited by generating and editing basic ECG metadata, segment metadata, package metadata, and DMB AF metadata. Author the data.

In addition, the memory or database stores previously authored metadata in a Document Object Model (DOM) structure, and accordingly the metadata for metadata of the DOM structure. Data information is input to the generation unit 130 through the extraction unit 130 to the media 160. In addition, the generation unit 130 generates new metadata or re-edits the previous metadata as described above through the input metadata, the segment extracted by the extraction unit 130, and the input schema XML. Accordingly outputs the XML 180 as current metadata. That is, the generation unit 130 performs metadata input / output and processing functions.

The processing unit 110, the authoring device processes each interface in the operation for authoring metadata based on DMB ECG XML, in particular to support the visualization of the contents of the metadata, to support editing on the visualized template Graphical User Interface (GUI: Graphical User Interface, hereinafter referred to as "GUI") is processed. Since the GUI will be described in more detail with reference to FIGS. 4 to 8, a detailed description thereof will be omitted herein.

The manager 150 manages metadata authored on the basis of DMB ECG XML, and in particular, manages metadata stored in a memory or a database and stored metadata as described above. The DMB ECG XML-based metadata is stored in a memory or a database by metadata management of the management unit 150 and provided to the terminal or network as metadata of contents requested by users through multiple streams. Here, the DMB ECG XML-based metadata is transmitted as multiplexed with the content stream as described above.

The interworking unit 140 is an interworking between modules that perform each function in an operation for authoring metadata based on DMB ECG XML, for example, input / output of media 180 and schema XML 170, and media. It supports the interworking of the 160, GUI interworking as a user interface, and calling an XML application programming interface (API). In particular, the interworking unit 140 interoperates with the management unit 150 such that metadata written based on DMB ECG XML is stored in a memory or a database, and the stored metadata is stored as a terminal or network data. Link to provide.

As illustrated in FIGS. 4 to 10, the display unit 190 visualizes and outputs the metadata content and the work of the metadata through the GUI.

As described above, the metadata authoring apparatus in the digital broadcasting system according to an embodiment of the present invention authors metadata such as DMB ECG metadata by performing functions such as metadata input / output, metadata processing, segment extraction and editing, and metadata interworking. The metadata is stored in a memory or a database, and is transmitted to a terminal or a network through a multiplexed stream. Here, the metadata input / output function receives a metadata document and a schema document and outputs the last-written metadata. The metadata processing function may visualize metadata information on metadata of a DOM structure stored in a memory or a database through the GUI, and the metadata according to an edit message input in cooperation with a GUI or media 160. Change data information. The segment editing is performed through input / output, GUI interworking, media interworking, XML API call, etc. of XML 180 as metadata. That is, when the generation unit 130 generates new metadata for metadata creation based on the DMB ECG XML or re-edits the previous metadata, the content as detailed information about the content extracted by the extraction unit 120 is included. The generation unit 130 edits the segment. The DMB ECG XML-based metadata created by the generation or reediting is stored in a memory or a database by interworking with the management unit 150 and transmitted to the terminal or the network. Next, the DMB ECG XML structure of metadata in the digital broadcasting system according to an embodiment of the present invention will be described in more detail with reference to FIGS. 2 and 3.

2 and 3 are diagrams schematically illustrating a DMB ECG XML structure of metadata in a communication system according to an embodiment of the present invention.

2 and 3, the DMB ECG XML 250, detailed information on the content, such as broadcast programs and on-demand programs provided by the digital broadcasting system in response to various content needs of users, group information of the content , Content organization information, channel information and portal service information, time section information of contents, electronic coupon information, package information for expressing various types of contents into one, user's viewing history and preference information, genre or content type, etc. Includes information about the classification scheme for terms that express the term. In addition, the DMB ECG XML 250 includes a content referencing XML used to obtain a physical location of the content, for example, a broadcast time of the content, a URL, and the like from the content identifier.

In more detail, the DMB ECG XML 250 includes TV-Anytime metadata 210 as a metadata schema with limited TV-Anytime, and the structure of the TV-Anytime metadata 210 is partially changed. DMB-AF metadata 220. In addition, the DMB ECG XML 250 includes a function provided by the DMB EPG as described above, and thus includes the digital audio broadcasting (DAB) EPG 230. In addition, the DAB EPG 230 includes a DMB EPG 240 extended to be suitable for a DMB environment.

The DMB-AF metadata 220 is metadata obtained by adding and modifying the TV-Anytime metadata 210 to be suitable for a DMB environment and a file data transmission environment. Unlike the schema structure, the structure is partially changed such that a segment information table is located under a package table / package / item / component element. In addition, the DMB ECG XML 250 is a structure in which an element necessary to include information about content is included in a schema structure of the DMB-AF metadata 220, and the DMB EPG 240 is described above. It supports the provision of DMB EPG service by including the function of.

In addition, the DMB ECG XML 250 has a DMB ECG Main Type 310 as the highest level root, and is a sub-item of the DMB ECG Main Type 310, and includes broadcast content and on-demand content. A program information table 332 for describing detailed information about the contents of the content, a group information table 334 for describing group information of the contents, and a list of organization information for describing the contents. A program location table 336, a service information table 338 for describing channel information, portal service information, and the like, and a segment information table for describing information for each time section of the content. Information Table 340, and Coupon Table 342, which describes electronic coupon information for promoting content consumption. In addition, the DMB ECG XML 250 is a sub-item of the DMB ECG main type 310. The DMB ECG XML 250 packages various types or types of contents to be consumed according to various conditions. User Description (326) for systematically indicating the user's content viewing history and preference, etc., and Classification Scheme Table (324) for systematically classifying terms representing genres or content types. And a copyright notice table 322 for notifying the copyright of the content, and the like.

The DMB ECG XML 250 is a hierarchical structure in which the DMB AF is extended as described above, and includes the package table 328, the user description 326, the classification scheme table 324, and the copyright notice table ( 322 is a part 320 defined in the DMB AF, and the remaining program information table 332, group information table 334, program location table 336, service information table 338, and segment information table 340. , And coupon table 342 is an extended portion of the DMB AF. The DMB ECG XML-based metadata includes the package table 328, the user description 326, the classification scheme table 324, and the copyright notice table 322 as basic parts of DMB AF. The expanded portion includes a program information table 332, a group information table 334, a program location table 336, a service information table 338, a segment information table 340, and a coupon table 342.

Based on the structure of the DMB ECG XML, metadata of contents corresponding to various content needs of users is authored. The metadata is stored and then the new metadata is based on the DMB ECG XML upon subsequent metadata authoring. Create data or re-edit the stored previous metadata to author metadata based on DMB ECG XML.

That is, the authoring apparatus according to an embodiment of the present invention is information on various types of contents requested by users, and includes detailed information about contents such as broadcast programs and on-demand programs, group information of contents, content organization information, and channels. Information about portal and service information, information on time intervals of contents, electronic coupon information, package information for grouping various types of content into one, user's viewing history and preference information, terms representing genre or content type, etc. The metadata is created and edited based on the DMB ECG XML as described above to include information about the classification scheme, and the final metadata is authored. The metadata is transmitted as a multiplexed stream through a GUI and interworking. That is, it is multiplexed with the content stream and transmitted. Next, DMB ECG XML-based metadata authoring in the digital broadcasting system according to an embodiment of the present invention will be described in more detail with reference to FIGS. 4 to 9.

4 through 9 are diagrams for describing metadata authoring in a communication system according to an exemplary embodiment of the present invention. 4 to 9 illustrate visualized metadata creation on the display unit 190 through a user interface, for example, a GUI when authoring metadata based on the DMB ECG XML.

4 to 9, the metadata authoring apparatus may include information on various types of contents requested by users, for example, detailed information on contents such as broadcast programs and on-demand programs, group information of contents, and organization of contents. Information, channel information and portal service information, time section information of contents, electronic coupon information, package information for grouping various types of contents into one, expressing user's viewing history and preference information, genre or type of contents, etc. The user interface is configured to generate and edit basic ECG metadata, segment data, package metadata, and DMB AF metadata according to the functional characteristics of the element serviced by the content, such as information about a classification scheme for terms. The metadata authoring apparatus generates and edits basic ECG metadata, segment data, package metadata, and DMB AF metadata including information on various types of content requested by users through a user interface, such as a GUI. Author the metadata based on the final DMB ECG XML.

More specifically, the metadata authoring apparatus generates and edits basic ECG metadata to provide a template-based intuitive data editing environment through a user interface, such as a GUI, as shown in FIG. 4. Herein, the metadata authoring apparatus generates basic ECG metadata based on DMB ECG XML, and the generated basic ECG metadata is visually displayed on the display unit 190 through a GUI and can be easily edited. . In addition, the metadata authoring apparatus, according to the application of metadata authored on the basis of DMB ECG XML, sets the elements of metadata that are frequently used in the metadata, and displays the data type or attribute value for the elements set in this way ( In (190), a predefined template window is displayed to easily add or modify the contents to be included in the metadata when the metadata is authored.

That is, the metadata authoring apparatus creates and edits basic ECG metadata as shown in FIG. 4 to author DMB ECG XML-based metadata. In addition, the metadata authoring apparatus, when storing the generated, modified or edited DMB ECG XML-based metadata in the memory or database, automatically converts the metadata into an XML document, wherein the converted XML document, That is, the metadata includes summary information, detailed information, audio / video (A / V) attribute information, service channel information, and the like of each program of the content. do.

And, as shown in FIG. 5, the metadata authoring apparatus receives each program content stream for the content through the media 160, and automatically generates a basic boundary shot through the user interface in each of the input program content streams. And the detected basic boundary shot is matched with the requested story for the content to generate a segment. Here, the extractor 120 receives the aforementioned program content streams through the media 160 and detects a basic boundary shot through a user interface, for example, a GUI.

In addition, the metadata authoring apparatus may generate a segment through basic boundary shot detection and story matching in each program content stream, and then, as illustrated in FIG. 6, the metadata authoring apparatus may be configured in a template displayed through a user interface such as a GUI. Group the created segments, and detailed information about each segment, that is, segment identifier (ID: hereinafter referred to as 'ID'), content reference ID (CRID: Content Reference ID, hereinafter referred to as 'CRID') By describing the time information, the segment content, and the like, the content and information described in the metadata are included. Therefore, the metadata authoring apparatus generates information about the segment and information about the segment group, respectively, and the generated information about the segment and the segment group is from the component element or the segment information table element in the package to the lower segment element. Used. That is, the metadata authoring apparatus creates and edits segment metadata including information on segments and segment groups as illustrated in FIG. 6 to author metadata based on DMB ECG XML.

In addition, the metadata authoring apparatus generates and edits package metadata through a user interface, as shown in FIG. 7. Here, the metadata authoring apparatus may generate the requested item and component structure according to the content in a tree structure visualized through a user interface, for example, a GUI, each of the generated items and components in a template, and basic ECG information. And obtaining and describing the segment information, thereby generating metadata including the above described contents and information. That is, the metadata authoring apparatus generates and includes structural information of the package metadata through the items and components, basic ECG information, and segment information, and displays a package metadata through a user interface as shown in FIG. 7. Create and edit data and author metadata based on DMB ECG XML accordingly.

As shown in FIG. 8, the metadata authoring apparatus generates and edits DMB AF metadata through a user interface. Here, the metadata authoring apparatus configures a user interface for generating and editing the DMB AF metadata similarly to a user interface for generating and editing the aforementioned package metadata. In this case, the metadata authoring apparatus generates DMB AF metadata by processing DMB ECG and DMB AF as separate schemas because the DMB AF schema is different from the ECG metadata and the root element. That is, the metadata authoring apparatus creates and edits DMB AF metadata as shown in FIG. 8 to author DMB ECG XML-based metadata.

The metadata authoring apparatus authoring metadata based on DMB ECG XML as described above, verifies the validity of the authored metadata through a user interface. In this case, the metadata authoring apparatus visually displays the position of an element in which an error exists in the display unit 190 through the GUI when the authored DMB ECG XML-based metadata is not valid. Next, the DMB ECG XML-based metadata consumption in the digital broadcasting system according to an embodiment of the present invention will be described in more detail with reference to FIGS. 10 to 12.

10 to 12 are diagrams for describing metadata consumption in a communication system according to an embodiment of the present invention. 10 to 12 are diagrams illustrating consumption of the metadata when providing the DMB ECG XML-based metadata authored as described above to users.

Referring to FIGS. 10 to 12, the DMB ECG XML-based metadata authored as described above is multiplexed with A / V data through a transmission server, that is, transmitted to a terminal or a network as a multiplexed stream with a content stream. . The terminal receives the DMB ECG XML-based metadata transmitted in the multiplexed stream, and the terminal consumes the received DMB ECG XML-based metadata as shown in FIGS. 10 to 12. Here, the metadata authoring apparatus authors the DMB ECG XML-based metadata for a predetermined period of time with respect to a predetermined DMB channel, and selects a predetermined program to extract segment information, and associates an associated segment group according to the extracted segment information. Information is generated, and program group information is generated in consideration of the association between the programs. In addition, the metadata authoring apparatus generates package metadata and DMB AF metadata for verification of a package service and a DMB AF distribution service, and the generated metadata is a bidirectional server with a stream multiplexed with A / V data. It is transmitted to the terminal through. Here, the DMB AF metadata is generated as a DMB AF file along with various DMB AF information, and the generated DMB AF file is transmitted to the terminal through a bidirectional server.

Then, the terminal receives the DMB ECG XML-based metadata transmitted in a multiplexed stream with A / V data, that is, multiplexed with the content stream, and as shown in FIG. 10, the DMB ECG metadata or the basic ECG meta. It consumes data, consumes segment metadata as shown in FIG. 11, and consumes DMB AF metadata as shown in FIG. In this case, the terminal receives a distribution and consumption service of content through metadata information in a mobile communication network environment of a digital broadcasting system. That is, the terminal receives the content based on the XML-based metadata for the content and receives the content. Then, the authoring operation of the metadata in the digital broadcasting system according to an embodiment of the present invention will be described in more detail with reference to FIG. 13.

13 is a view schematically illustrating an operation process of a metadata authoring apparatus in a communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 13, in operation 1310, the metadata authoring apparatus receives previous metadata or content stored in a memory or a database as media.

In operation 1320, the metadata authoring apparatus extracts a TOC for content from the input media, and thus extracts a segment of content as detailed information about the content. Here, the metadata authoring apparatus may include information on various types of contents requested by users, such as detailed information on contents such as broadcast programs and on-demand programs, group information of contents, content organization information, channel information, and portal services. Information, information on time intervals of contents, electronic coupon information, package information for grouping various types of content into one, classification history for terms expressing user's content viewing history and preference information, genre or content type, etc. The TOC is extracted so that information and the like are included in the metadata. In this case, as information on various types of contents requested by users, detailed information about contents such as broadcast programs and on-demand programs, group information of contents, content organization information, channel information and portal service information, and time intervals of contents Information, electronic coupon information, package information for grouping various types of content into one, extracting user's content viewing history and preference information, and information on a classification system for terms expressing genres or content types are extracted.

Next, in step 1330, the metadata authoring apparatus, as described above, is information on various types of content requested by users, and includes detailed information on content such as broadcast programs and on-demand programs, group information of contents, Content organization information, channel information and portal service information, time section information of contents, electronic coupon information, package information for tying various types of contents together, user's viewing history and preference information, genre or content type, etc. A user interface, such as a GUI, is processed to create and edit DMB ECG XML-based metadata including information about a classification scheme for terms to be expressed.

Next, in step 1340, the metadata authoring apparatus creates and edits basic ECG metadata, segment metadata, package metadata, and DMB AF metadata through a user interface to author final metadata based on DMB ECG XML. do. Here, the authored DMB ECG XML-based metadata is stored in a memory or a database, and also multiplexed with a content stream and transmitted to a terminal or a network.

The metadata based on the authored DMB ECG XML includes detailed information on content such as a broadcast program and an on-demand program, group information of content, content organization information, channel information and portal service information, and information for each time section of the content. , Electronic coupon information, package information, user's content viewing history and preference information, information on a classification system for terms expressing a genre or content type, and the like. In addition, the authored DMB ECG XML-based metadata includes a content referencing XML used to obtain a broadcast time, a URL, etc. of the content as a physical location of the content from the content identifier. In other words, the DMB ECG XML-based metadata includes TV-Anytime metadata, DMB-AF metadata, DAB EPG, and DMB EPG. That is, the DMB ECG XML-based metadata has a program information table, a group information table, a program location table, a service information table, a segment information table, a coupon table, a package table, and a user description with the DMB ECG main type as the top root. , Classification scheme tables, copyright notice tables, and the like.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (20)

A data authoring apparatus in a communication system,
An extraction unit configured to receive a media corresponding to content and extract content information about the content from the input media;
Generation for generating metadata based on Digital Multimedia Broadcasting (DMB) Electronic Content Guide (ECG) Extended Markup Language (XML) including the extracted content information. part; And
And a processor configured to visualize contents of the DMB ECG XML-based metadata through a user interface and process the user interface to generate and edit the DMB ECG XML-based metadata on a template. Data authoring device.
The method of claim 1,
The generation unit may generate basic ECG metadata, segment metadata, package metadata, and DMB application format (AF) metadata to author the DMB ECG XML-based metadata. Authoring device. The method of claim 2,
The DMB ECG XML-based metadata is a basic part of the DMB AF metadata and includes a package table, a user description, a classification scheme table, and a copyright notice table. And a table).
The method of claim 3,
The DMB ECG XML-based metadata is an extension of the DMB AF metadata, and includes a program information table, a group information table, a program location table, and a service information table. (Service Information Table), a segment information table (Segment Information Table), and a coupon table (Coupon Table) characterized in that it comprises a data authoring apparatus.
The method of claim 1,
The DMB ECG XML-based metadata may include TV-Anytime metadata, DMB Application Format (AF) metadata, Digital Audio Broadcasting (DAB) Electronic Program Guide (EPG), and A data authoring apparatus comprising a DMB EPG.
The method of claim 1,
The DMB ECG XML-based metadata includes content detailed information of broadcast programs and on-demand programs, group information of content, content organization information, channel information, portal service information, time section information of contents, electronic coupon information, package information. And classification system information of terms representing content viewing history and preference information of a user and terms representing genres or content types.
The method of claim 1,
The DMB ECG XML-based metadata includes content referencing for obtaining a broadcast time of the content and a uniform resource locator (URL) from the identifier of the content to the physical location of the content. A data authoring device comprising XML.
The method of claim 1,
The generation unit generates and edits basic ECG metadata in the template-based intuitive data editing environment through the user interface, sets a predetermined element in the DMB ECG XML-based metadata, and then assigns the element to the set element. And a data type or attribute value for the template as the template.
The method of claim 1,
The DMB ECG XML-based metadata is converted into an XML document and stored in a Document Object Model (DOM) structure, and the stored metadata includes summary information, detailed information, audio / A data authoring apparatus comprising video (A / V) attribute information and service channel information.
10. The method of claim 9,
And the extracting unit receives the stored metadata as the media and extracts a table of contents (TOC) and segments from the stored metadata.
The method of claim 1,
And the extracting unit receives each program content stream of the content as the media, and detects a basic boundary shot through the user interface in each of the input program content streams.
The method of claim 11,
The generation unit generates a segment by matching the detected basic boundary shot into a story, grouping the generated segment on the template through the user interface, and detailed information about the segment and details about the segment group. And generating segment metadata including information.
The method of claim 12,
The detailed information includes a segment identifier (ID), a content reference ID (CRID), time information, and segment content.
The method of claim 1,
The generation unit generates an item and a component structure according to the contents in a tree structure visualized through the user interface, and obtains each of the generated items and components, basic ECG information, and segment information on the template, and packages them. A data authoring device, characterized in that for generating metadata.
The method of claim 1,
The generation unit, characterized in that the DMB ECG and DMB Application Format (AF) having different root elements are processed by a separate schema (schema), the data authoring apparatus, characterized in that for generating DMB AF metadata.
The method of claim 1,
The generation unit receives and edits a metadata document and a schema document for the content and outputs metadata based on DMB ECG XML;
And a management unit which manages the DMB ECG XML-based metadata and stores the metadata in a memory or a database in a Document Object Model (DOM) structure. The method of claim 1,
Interworking unit for supporting XML input and output of the DMB ECG XML-based metadata, interworking of the user interface, interworking of the media, and XML application programming interface (API) calls for segment editing of the content. Data authoring apparatus comprising a.
The method of claim 1,
The DMB ECG XML-based metadata are multiplexed with the stream of the content and are transmitted to a terminal or a network receiving the content.
In a method of authoring data in a communication system,
Receiving a media corresponding to the content;
Extracting content detail information and a segment of the content from the input media;
Processing a user interface for the content;
Visualize on a template through the user interface, and include basic electronic content guide (ECG) metadata, segment metadata, package metadata, and digital multimedia broadcasting (DMB) including the content details and segments. Generating and editing Digital Format Broadcasting (AF) application format (AF) metadata, respectively; And
Authoring metadata based on DMB ECG Extensible Markup Language (XML) through the basic ECG metadata, the segment metadata, the package metadata, and the DMB AF metadata. Characteristic data authoring method.
The method of claim 19, wherein the DMB ECG XML-based metadata,
A basic part of the DMB AF metadata, the package table includes a package table, a user description, a classification scheme table, and a copyright notice table;
As an extension of the DMB AF metadata, a program information table, a group information table, a program location table, a service information table, a segment information table ( Segment Information Table, and Coupon Table.

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