EP1958441A1 - Apparatus for editing/authoring terrestrial dmb contents, interactive contents providing system for terrestrial dmb - Google Patents

Apparatus for editing/authoring terrestrial dmb contents, interactive contents providing system for terrestrial dmb

Info

Publication number
EP1958441A1
EP1958441A1 EP06823968A EP06823968A EP1958441A1 EP 1958441 A1 EP1958441 A1 EP 1958441A1 EP 06823968 A EP06823968 A EP 06823968A EP 06823968 A EP06823968 A EP 06823968A EP 1958441 A1 EP1958441 A1 EP 1958441A1
Authority
EP
European Patent Office
Prior art keywords
contents
terrestrial dmb
xmt
editing
terrestrial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06823968A
Other languages
German (de)
French (fr)
Other versions
EP1958441A4 (en
Inventor
Won-Sik Cheong
Sang-Woo Ahn
Ji-Hun Cha
Ye-Sun Joung
Young-Jae Yoo
Won-Hyuck Yoo
Kyu-Heon Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP1958441A1 publication Critical patent/EP1958441A1/en
Publication of EP1958441A4 publication Critical patent/EP1958441A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/80—Information retrieval; Database structures therefor; File system structures therefor of semi-structured data, e.g. markup language structured data such as SGML, XML or HTML
    • G06F16/84—Mapping; Conversion
    • G06F16/88—Mark-up to mark-up conversion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. MP3 (MPEG-1 Audio Layer 3)
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • 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
    • H04N21/43—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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8545—Content authoring for generating interactive applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems

Definitions

  • the present invention relates to an apparatus for editing and authoring terrestrial digital multimedia broadcasting (DMB) contents and an interactive terrestrial DMB contents providing system; and more particularly, to a terrestrial DMB contents editing and authoring apparatus for transforming a terrestrial digital TV contents format to a terrestrial DMB contents format to allow a user to edit and author a terrestrial DMB contents, editing/authoring the terrestrial DMB contents according to editing/authoring information inputted from the user interface, and retransmitting the edited or authored terrestrial DMB contents.
  • DMB digital multimedia broadcasting
  • DMB contents including audio and video to a user.
  • a bidirectional service that allows a user to directly edit and author the terrestrial DMB contents is not provided yet.
  • a content transforming service to retransmit terrestrial DTV content as terrestrial DMB contents is not provided.
  • terrestrial DMB interactive contents providing system including: a terrestrial DMB contents transforming apparatus for transforming a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB; a terrestrial DMB contents editing and authoring apparatus for providing an interface to a user to edit and author the transformed format of terrestrial DMB interactive contents, and editing and authoring the terrestrial DMB interactive contents according to temporal/ spatial arrangement and behavior events of objects based on editing and authoring information of the user inputted through the interface; a terrestrial DMB contents storing apparatus for storing the terrestrial DMB interactive contents; and a terrestrial DMB contents transmitting apparatus for transmitting the stored terrestrial DMB contents to be suitable to a terrestrial DMB transmit format according to a transmit schedule.
  • a terrestrial DMB contents transforming apparatus for transforming a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB
  • a terrestrial DMB contents editing and authoring apparatus for providing an interface to a user to edit and author the transformed format of terrestrial DMB interactive contents, and editing and author
  • terrestrial DMB editing and authoring apparatus including: a user interfacing unit for providing an interface for allowing a user to edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents and to easily author behaviors of objects in response to user's input; a data accessing unit for generally controlling an terrestrial DMB contents editing and authoring operation, providing an interface to access a first internal data structure, connecting the first internal data structure and the user interfacing unit, and connecting the first internal data structure and a second internal data structure of an extensible MPEG-4 textual format (XMT) accessing unit; an XMT accessing unit for providing an interface to access the second internal data structure, storing editing and authoring information stored in the first internal data structure of the data accessing unit in the second internal data structure, reading the stored information in the second internal data structure, and transferring the read information to the user interfacing unit through the data accessing unit; a transforming unit for transforming XMT file among stored terrestrial DMB interactive contents stored in an storing unit to MP4 files and transforming the MP4 file to the XMT file;
  • a user can directly edit and author terrestrial DMB contents by transforming a terrestrial DTV contents format to a terrestrial DMB content format and editing and authoring the terrestrial DMB contents according to editing and authoring information inputted from a user.
  • FIG. 1 is a block diagram illustrating a terrestrial DMB interactive contents
  • FIG. 2 is a diagram illustrating a user graphic interface provided from a terrestrial
  • FIG. 3 is a block diagram illustrating a data access unit in a terrestrial DMB contents editing and authoring apparatus in accordance with an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating a method for providing terrestrial DMB interactive contents in accordance with an embodiment of the present invention.
  • FIG. 1 is a block diagram illustrating a terrestrial DMB interactive contents
  • the terrestrial digital multimedia broadcasting (DMB) interactive contents providing system includes a terrestrial DMB contents transforming apparatus 10, a terrestrial DMB contents editing and authoring apparatus 20, a terrestrial DMB contents storing apparatus 30, and a terrestrial DMB contents transmitting apparatus 40.
  • the terrestrial DMB contents transforming apparatus 10 transforms a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB.
  • the predetermined data format is a format of storing contents employing the specifications of moving picture experts group - phase 4 (MPEG-4) Systems, such as extensible MPEG- 4 textual format (XMT) or MP4 file format.
  • the terrestrial DMB contents editing and authoring apparatus 20 provides an interface, for example, a graphic user interface (GUI), to a user to edit and author the transformed format of terrestrial DMB interactive contents, such as XMT or MP file format terrestrial DMB interactive DMB contents, and edits and authors the terrestrial DMB interactive contents according to temporal/spatial arrangement and behavior events of objects based on the editing and authoring information of the user inputted through the GUI.
  • GUI graphic user interface
  • the terrestrial DMB contents storing apparatus 30 stores the terrestrial DMB interactive contents.
  • the terrestrial DMB contents transmitting apparatus 40 transmits the stored terrestrial DMB contents to be suitable to a terrestrial DMB transmit format, for example, MPEG-2 transport stream (TS), according to a transmit schedule.
  • TS MPEG-2 transport stream
  • the terrestrial DMB contents are stored in a XMT
  • the XMT format and the MP4 file format is a storing format of contents employing the specifications of MPEG-4 Systems. Since the terrestrial DMB contents employ the specifications of MPEG-4 Systems, the XMT format and the MP4 file format are used to store the terrestrial DMB contents in the present embodiment. Furthermore, the terrestrial DMB contents are finally transformed to a MPEG-2 TS format for transmission in the present embodiment because the transmission of the terrestrial DMB contents employs MPEG-2 TS format.
  • the present invention is not limited by predetermined formats of the DTV contents or the terrestrial DMB contents.
  • the terrestrial DMB contents transforming apparatus 10 includes: a preprocessor 11 for receiving terrestrial DTV contents, analyzing program specific information (PSI), an application information table (AIT), and related descriptors, separating video streams, audio streams, and data streams therefrom, and controls transformation of terrestrial DMB contents; a media transformer 12 for transforming the MPEG-2 video stream of the terrestrial DTV contents to moving picture experts group - phase 4 advanced video coding (MPEG-4 AVC) stream, and transforming the audio coding-3 (AC-3) audio stream of the terrestrial DTV contents to moving picture experts group - phase 4 bit sliced arithmetic coding (MPEG-4 BSAC) audio stream for terrestrial DMB in response to the preprocessor 11 ; a data transformer 13 for transforming the advanced common application platform (ACAP) data stream of terrestrial DTV contents to predetermined formatted data for terrestrial DMB in response to the preprocessor 11 ; and an XMT/MP4 storing unit 14 for storing the transformed data in an XMT format or a MP4 format.
  • the preprocessor 11 receives terrestrial DTV contents and analyzes program
  • the preprocessor 11 separates video streams, audio streams, and data streams therefrom, and integrally controls transformation of terrestrial DMB contents.
  • the media transformer 12 transforms the MPEG-2 video stream of the terrestrial
  • the data transformer 13 transforms the ACAP data stream of terrestrial DTV
  • the XMT/MP4 storing unit 14 stores the transformed data in an XMT format or a
  • the transformed contents transformed by the terrestrial DMB contents transforming apparatus 10 are stored in the terrestrial DMB contents storing apparatus 30 in the XMT format or the MP4 format as described above.
  • the MP4 format stored contents may be transmitted to a transmitter 50 through the terrestrial DMB contents
  • the XMT or MP4 formatted contents can be edited by the terrestrial DMB content editing and authoring apparatus 20. Then, the edited contents are transmitted to the transmitter 50 through the terrestrial DMB transmitting contents apparatus 40.
  • the terrestrial DMB contents editing and authoring apparatus 20 includes: a user interfacing unit 21 for providing an interface for allowing a user to edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents and to easily author events of objects in response to user's input; a data access unit 22 for generally controlling an editing and authoring operation, providing an interface to access an internal data structure 210 of Fig.
  • the terrestrial DMB content editing and authoring apparatus 20 enables a user to edit and author the terrestrial DMB interactive contents satisfying MPEG-4 Systems core2D profile through the user interfacing unit 21 that provides an interface to user to edit and author media objects used in the terrestrial DMB interactive contents.
  • the terrestrial DMB content editing and authoring apparatus 20 supports MPEG-4 BSAC and MPEG-4 AVC formats.
  • the user interfacing unit 21 provides an interface for allowing a user to easily and simply edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents such as video, audio, still image, text, and 2 dimensional geometric objects including circle and rectangle, and to easily author events of objects in response to user's input inputted through a mouse or a keyboard.
  • the data access unit 22 generally controls the terrestrial DMB contents editing and authoring apparatus 20, and provides an interface between the internal data structure of an object data storing unit 211, an event data storing unit 212, a scene data storing unit 213, and an editing data storing unit 214 shown in Fig. 3 and the user interfacing unit 21, and an interface between the internal data structure 210 and the XMT DOM that is an interface data structure of the data access unit 22.
  • the XMT access unit 23 includes an XMT generator (not shown) for generating an XMT signal
  • the XMT generator converts edited or authored contents to an XMT format that is an MPEG-4 standard.
  • the XMT access unit 23 uses the XMT DOM as an internal data structure, provides an application programming interface (API) to access the XMT DOM, stores the editing and authoring information stored in the internal data structure 210 of the data access unit 22 to the XMT DOM, reads the stored information the XMT DOM, and transfers the read information to the user interfacing unit 21 through the data access unit 22.
  • API application programming interface
  • the MP4 generator 24 transforms text type XMT file to binary type MP4 files, and transforms the MP4 file to the XMT file according to an embodiment.
  • the media decoding unit 25 decodes media object such as video, audio, still
  • the terrestrial DMB contents storing apparatus 30 includes a media file storing unit
  • a MP4 file storing unit 32 for storing terrestrial DMB interactive contents data in a MP4 format
  • an XMT file storing unit 33 for providing stored XMT files to the MP4 generator 24 to transform the XMT file to the MP4 file.
  • the terrestrial DMB contents transmitting apparatus 40 includes: a contents storing and managing unit 41 for receiving the terrestrial DMB interactive contents from the terrestrial DMB contents storing apparatus 30, storing and managing the received terrestrial DMB interactive contents; a scheduling unit 42 for managing a schedule for transmitting the terrestrial DMB interactive contents stored in the contents storing and managing unit 41 ; and a multiplexing unit 43 for receiving the terrestrial DMB interactive contents from the contents storing and managing unit 41 and multiplexing the terrestrial DMB interactive contents to a transmission format of terrestrial DMB standard, for example, MPEG-2 TS, in response to the control of the scheduling unit 42.
  • a contents storing and managing unit 41 for receiving the terrestrial DMB interactive contents from the terrestrial DMB contents storing apparatus 30, storing and managing the received terrestrial DMB interactive contents
  • a scheduling unit 42 for managing a schedule for transmitting the terrestrial DMB interactive contents stored in the contents storing and managing unit 41
  • a multiplexing unit 43 for receiving the terrestrial DMB interactive contents from the contents storing and managing unit 41 and multiplexing the terrestrial DMB interactive contents
  • the contents storing and managing unit 41 reads the terrestrial DMB interactive contents stored in the terrestrial DMB contents storing apparatus 30, and stores and manages the read terrestrial DMB interactive contents. Also, the contents storing and managing unit 41 provides the information for managing the terrestrial DMB contents to the scheduling unit 42 and the multiplexing unit 43.
  • the storing format of the terrestrial DMB contents is a MP4 file format.
  • the scheduling unit 42 manages or edits a schedule for transmitting the terrestrial
  • DMB interactive contents stored in the contents storing and managing unit 41, and controls the terrestrial DMB contents storing and managing unit 41 and the multiplexing unit 43 to transmit the terrestrial DMB content according to a schedule.
  • the multiplexing unit 43 receives the terrestrial DMB interactive contents to
  • the multiplexing unit 43 transmits the multiplexed terrestrial DMB contents to the transmitter 50 in order to transmit to a satellite.
  • FIG. 2 is a diagram illustrating a user graphic interface provided from a terrestrial
  • DMB content editing and authoring apparatus in accordance with an embodiment of the present invention.
  • the user interfacing unit 21 includes a menu bar 1, a tool bar 2, a media preview window 3 for providing a preview function for previewing media object such as video, a media explorer 4 for providing an explorer-like function, for example, showing a thumbnail view of media object, an attribute window 5 for showing the editing state of objects, a canvas window 6 for showing editing the spatial arrangement of objects, an event & action window 7 for showing editing behavior of objects, and a timeline window 8 for showing editing temporal arrangement of object.
  • a menu bar 1 for providing a preview function for previewing media object such as video
  • a media explorer 4 for providing an explorer-like function, for example, showing a thumbnail view of media object
  • an attribute window 5 for showing the editing state of objects
  • a canvas window 6 for showing editing the spatial arrangement of objects
  • an event & action window 7 for showing editing behavior of objects
  • a timeline window 8 for showing editing temporal arrangement of object.
  • FIG. 3 is a block diagram illustrating a data access unit in a terrestrial DMB contents editing and authoring apparatus in accordance with an embodiment of the present invention.
  • the data access unit 22 includes: an internal data structure 210 for storing object data, event data, scene configuration data, and editing data of the terrestrial DMB contents editing and authoring apparatus 20 included in the terrestrial DMB contents; and an internal data structure managing unit for creating/ deleting/ correcting object data and event data, managing scene configuration data including structural locations of objects or events in a scene and related information thereof, and creating/ deleting/ correcting the editing information.
  • an internal data structure 210 for storing object data, event data, scene configuration data, and editing data of the terrestrial DMB contents editing and authoring apparatus 20 included in the terrestrial DMB contents
  • an internal data structure managing unit for creating/ deleting/ correcting object data and event data, managing scene configuration data including structural locations of objects or events in a scene and related information thereof, and creating/ deleting/ correcting the editing information.
  • the internal data structure 210 includes an object data storing unit 211 for storing information about objects forming the terrestrial DMB contents; an event data storing unit 212 for storing event data for each object; a scene data storing unit 213 for storing scene information of objects and events; and an editing data storing unit 214 for storing editing information of the terrestrial DMB contents editing and authoring apparatus 20.
  • the object data storing unit 211 is a data structure having information about objects forming the terrestrial DMB contents.
  • the event data storing unit 212 is a data structure having information about events for each object.
  • the scene data storing unit 213 is a data structure having information about scene configuration of objects and events forming the terrestrial DMB contents.
  • the editing data storing unit 214 is a data structure having editing information of the terrestrial DMB editing and authoring apparatus 20, such as UNDO/REDO information.
  • the internal data structure managing unit 220 includes: an object processor 221 for managing the object data storing unit 211 and creating/correcting/deleting object data; an event processor for managing the event data storing unit 212 and creating/ correcting/deleting events such as the behavior of an object; an scene processor 223 for managing the scene data storing unit 213 and managing scene configuration data such as structural locations of objects or events in a scene; and an editing processor 224 for managing the editing data storing unit 214 and creating/correcting/deleting editing data.
  • FIG. 4 is a flowchart illustrating a method for providing terrestrial DMB interactive contents in accordance with an embodiment of the present invention.
  • the terrestrial DMB contents transforming apparatus 10 receives the terrestrial DTV contents, analyzes a program specific information (PSI), an application information table (AIT), and related descriptors, and separates video streams, audio streams, and data streams therefrom.
  • PSI program specific information
  • AIT application information table
  • the terrestrial DMB content editing and authoring apparatus 20 edits and authors terrestrial DMB contents according to editing and authoring information inputted from a user at step S404.
  • the edited or authored terrestrial DMB contents are transformed to a XMT format and a MP4 format, and the transformed contents are stored in the terrestrial DMB contents storing apparatus 30 at step S405.
  • the terrestrial DMB contents transmitting apparatus 40 reads the terrestrial DMB contents stored in the terrestrial DMB content storing apparatus 30 and stores the read contents at step S406, and creates a transmission schedule of the stored terrestrial DMB contents at step S407.
  • the terrestrial DMB interactive contents are multiplexed to a transmission format of terrestrial DMB standard, for example, MPEG-2 TS at step S408, and the multiplexed contents are transmitted to the transmitter 50 at step S409.
  • a transmission format of terrestrial DMB standard for example, MPEG-2 TS
  • the above described method according to the present invention can be embodied as a program and stored on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data which can be thereafter read by the computer system.
  • the computer readable recording medium includes a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a floppy disk, a hard disk and an optical magnetic disk.

Abstract

Provided are a terrestrial DMB contents editing and authoring apparatus and a terrestrial DMB contents providing system having the same. The terrestrial DMB contents providing system includes: a terrestrial DMB contents transforming apparatus for transforming a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB; a terrestrial DMB contents editing and authoring apparatus for providing an interface to a user to edit and author the transformed format of terrestrial DMB interactive contents, and editing and authoring the terrestrial DMB interactive contents according to temporal/spatial arrangement and behavior events of objects based on editing and authoring information of the user; a terrestrial DMB contents storing apparatus for storing the terrestrial DMB interactive contents; and a terrestrial DMB contents transmitting apparatus for transmitting the stored terrestrial DMB contents to be suitable to a terrestrial DMB transmit format according to a transmit schedule.

Description

Description
APPARATUS FOR EDITING/AUTHORING TERRESTRIAL
DMB CONTENTS, INTERACTIVE CONTENTS PROVIDING
SYSTEM FOR TERRESTRIAL DMB
Technical Field
[1] The present invention relates to an apparatus for editing and authoring terrestrial digital multimedia broadcasting (DMB) contents and an interactive terrestrial DMB contents providing system; and more particularly, to a terrestrial DMB contents editing and authoring apparatus for transforming a terrestrial digital TV contents format to a terrestrial DMB contents format to allow a user to edit and author a terrestrial DMB contents, editing/authoring the terrestrial DMB contents according to editing/authoring information inputted from the user interface, and retransmitting the edited or authored terrestrial DMB contents.
[2]
Background Art
[3] The demands for mobile multimedia service have increased. In order to satisfy such demands, a terrestrial DMB service was commercialized.
[4] Current terrestrial DMB service is a one directional service to provide terrestrial
DMB contents including audio and video to a user. A bidirectional service that allows a user to directly edit and author the terrestrial DMB contents is not provided yet. Also, a content transforming service to retransmit terrestrial DTV content as terrestrial DMB contents is not provided.
[5] Therefore, there is a demand for an interactive service for allowing a user to directly edit and author the terrestrial DMB contents in a current technology filed.
[6]
Disclosure of Invention
Technical Problem
[7] It is, therefore, an object of the present invention to a terrestrial DMB contents
editing and authoring apparatus that allows a user to edit and author terrestrial DMB contents, and a terrestrial DMB interactive contents providing system using the same.
[8]
Technical Solution
[9] In accordance with one aspect of the present invention, there is provided a
terrestrial DMB interactive contents providing system including: a terrestrial DMB contents transforming apparatus for transforming a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB; a terrestrial DMB contents editing and authoring apparatus for providing an interface to a user to edit and author the transformed format of terrestrial DMB interactive contents, and editing and authoring the terrestrial DMB interactive contents according to temporal/ spatial arrangement and behavior events of objects based on editing and authoring information of the user inputted through the interface; a terrestrial DMB contents storing apparatus for storing the terrestrial DMB interactive contents; and a terrestrial DMB contents transmitting apparatus for transmitting the stored terrestrial DMB contents to be suitable to a terrestrial DMB transmit format according to a transmit schedule.
[10] In accordance with another aspect of the present invention, there is provided a
terrestrial DMB editing and authoring apparatus including: a user interfacing unit for providing an interface for allowing a user to edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents and to easily author behaviors of objects in response to user's input; a data accessing unit for generally controlling an terrestrial DMB contents editing and authoring operation, providing an interface to access a first internal data structure, connecting the first internal data structure and the user interfacing unit, and connecting the first internal data structure and a second internal data structure of an extensible MPEG-4 textual format (XMT) accessing unit; an XMT accessing unit for providing an interface to access the second internal data structure, storing editing and authoring information stored in the first internal data structure of the data accessing unit in the second internal data structure, reading the stored information in the second internal data structure, and transferring the read information to the user interfacing unit through the data accessing unit; a transforming unit for transforming XMT file among stored terrestrial DMB interactive contents stored in an storing unit to MP4 files and transforming the MP4 file to the XMT file; and a media decoding unit for decoding media object among the terrestrial DMB interactive contents stored in the storing unit.
[H]
Advantageous Effects
[12] According to the embodiment of the present invention, a user can directly edit and author terrestrial DMB contents by transforming a terrestrial DTV contents format to a terrestrial DMB content format and editing and authoring the terrestrial DMB contents according to editing and authoring information inputted from a user.
[13]
Brief Description of the Drawings
[14] The above and other objects and features of the present invention will become
apparent from the following description of the preferred embodiments given in conjunction with the accompanying drawings, in which:
[15] Fig. 1 is a block diagram illustrating a terrestrial DMB interactive contents
providing system in accordance with an exemplary embodiment of the present invention;
[16] Fig. 2 is a diagram illustrating a user graphic interface provided from a terrestrial
DMB content editing and authoring apparatus in accordance with an embodiment of the present invention;
[17] Fig. 3 is a block diagram illustrating a data access unit in a terrestrial DMB contents editing and authoring apparatus in accordance with an embodiment of the present invention; and
[18] Fig. 4 is a flowchart illustrating a method for providing terrestrial DMB interactive contents in accordance with an embodiment of the present invention.
[19]
Best Mode for Carrying Out the Invention
[20] Other objects and aspects of the invention will become apparent from the following description of the embodiments with reference to the accompanying drawings, which is set forth hereinafter.
[21] Fig. 1 is a block diagram illustrating a terrestrial DMB interactive contents
providing system in accordance with an exemplary embodiment of the present invention.
[22] Referring to Fig. 1, the terrestrial digital multimedia broadcasting (DMB) interactive contents providing system according to the present embodiment includes a terrestrial DMB contents transforming apparatus 10, a terrestrial DMB contents editing and authoring apparatus 20, a terrestrial DMB contents storing apparatus 30, and a terrestrial DMB contents transmitting apparatus 40. The terrestrial DMB contents transforming apparatus 10 transforms a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB. For example, the predetermined data format is a format of storing contents employing the specifications of moving picture experts group - phase 4 (MPEG-4) Systems, such as extensible MPEG- 4 textual format (XMT) or MP4 file format. The terrestrial DMB contents editing and authoring apparatus 20 provides an interface, for example, a graphic user interface (GUI), to a user to edit and author the transformed format of terrestrial DMB interactive contents, such as XMT or MP file format terrestrial DMB interactive DMB contents, and edits and authors the terrestrial DMB interactive contents according to temporal/spatial arrangement and behavior events of objects based on the editing and authoring information of the user inputted through the GUI. The terrestrial DMB contents storing apparatus 30 stores the terrestrial DMB interactive contents. The terrestrial DMB contents transmitting apparatus 40 transmits the stored terrestrial DMB contents to be suitable to a terrestrial DMB transmit format, for example, MPEG-2 transport stream (TS), according to a transmit schedule.
[23] In the present embodiment, the terrestrial DMB contents are stored in a XMT
format or a MP4 file format. The XMT format and the MP4 file format is a storing format of contents employing the specifications of MPEG-4 Systems. Since the terrestrial DMB contents employ the specifications of MPEG-4 Systems, the XMT format and the MP4 file format are used to store the terrestrial DMB contents in the present embodiment. Furthermore, the terrestrial DMB contents are finally transformed to a MPEG-2 TS format for transmission in the present embodiment because the transmission of the terrestrial DMB contents employs MPEG-2 TS format.
[24] However, the present invention is not limited by predetermined formats of the DTV contents or the terrestrial DMB contents.
[25] Hereinafter, the internal structure of the terrestrial DMB interactive contents
providing system according to the present embodiment will be described in detail.
[26] The terrestrial DMB contents transforming apparatus 10 includes: a preprocessor 11 for receiving terrestrial DTV contents, analyzing program specific information (PSI), an application information table (AIT), and related descriptors, separating video streams, audio streams, and data streams therefrom, and controls transformation of terrestrial DMB contents; a media transformer 12 for transforming the MPEG-2 video stream of the terrestrial DTV contents to moving picture experts group - phase 4 advanced video coding (MPEG-4 AVC) stream, and transforming the audio coding-3 (AC-3) audio stream of the terrestrial DTV contents to moving picture experts group - phase 4 bit sliced arithmetic coding (MPEG-4 BSAC) audio stream for terrestrial DMB in response to the preprocessor 11 ; a data transformer 13 for transforming the advanced common application platform (ACAP) data stream of terrestrial DTV contents to predetermined formatted data for terrestrial DMB in response to the preprocessor 11 ; and an XMT/MP4 storing unit 14 for storing the transformed data in an XMT format or a MP4 format.
[27] Hereinafter, the constitutional elements of the terrestrial DMB content transforming apparatus 10 will be described in more detail.
[28] The preprocessor 11 receives terrestrial DTV contents and analyzes program
specific information (PSI), an application information table (AIT), and related descriptors. Based on the analyzing result, the preprocessor 11 separates video streams, audio streams, and data streams therefrom, and integrally controls transformation of terrestrial DMB contents.
[29] The media transformer 12 transforms the MPEG-2 video stream of the terrestrial
DTV contents to MPEG-4 AVC stream, and transforms the AC-3 audio stream of the terrestrial DTV contents to MPEG-4 BSAC stream for terrestrial DMB in response to the preprocessor 11.
[30] The data transformer 13 transforms the ACAP data stream of terrestrial DTV
contents to predetermined formatted data for terrestrial DMB in response to the preprocessor 13.
[31] The XMT/MP4 storing unit 14 stores the transformed data in an XMT format or a
MP4 format.
[32] The transformed contents transformed by the terrestrial DMB contents transforming apparatus 10 are stored in the terrestrial DMB contents storing apparatus 30 in the XMT format or the MP4 format as described above. The MP4 format stored contents may be transmitted to a transmitter 50 through the terrestrial DMB contents
transmitting apparatus 40. If the transforming result, however, is not satisfied, the XMT or MP4 formatted contents can be edited by the terrestrial DMB content editing and authoring apparatus 20. Then, the edited contents are transmitted to the transmitter 50 through the terrestrial DMB transmitting contents apparatus 40.
[33] The terrestrial DMB contents editing and authoring apparatus 20 includes: a user interfacing unit 21 for providing an interface for allowing a user to edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents and to easily author events of objects in response to user's input; a data access unit 22 for generally controlling an editing and authoring operation, providing an interface to access an internal data structure 210 of Fig. 3, connecting the internal data structure 210 and the user interfacing unit 21, and connecting the internal data structure 210 and an XMT DOM (extensible MPEG-4 textual format document object model) that is used as internal data structure of an XMT access unit 23; an XMT access unit 23 for providing an interface to access XMT DOM that is an internal data structure of the XMT access unit 23, storing the editing and authoring information stored in the internal data structure 210 of the data access unit 22 to the XMT DOM, reading the stored information the XMT DOM, and transferring the read information to the user interfacing unit 21 through the data access unit 22; a MP4 generator 24 for transforming XMT file among stored terrestrial DMB interactive contents to MP4 files and transforming the MP4 file to the XMT file; and a media decoding unit 25 for decoding media object among the terrestrial DMB interactive contents stored in the terrestrial DMB contents storing apparatus 30.
[34] The terrestrial DMB content editing and authoring apparatus 20 enables a user to edit and author the terrestrial DMB interactive contents satisfying MPEG-4 Systems core2D profile through the user interfacing unit 21 that provides an interface to user to edit and author media objects used in the terrestrial DMB interactive contents. The terrestrial DMB content editing and authoring apparatus 20 supports MPEG-4 BSAC and MPEG-4 AVC formats.
[35] Hereinafter, the constitutional elements of the terrestrial DMB contents editing and authoring apparatus 20 will be described.
[36] The user interfacing unit 21 provides an interface for allowing a user to easily and simply edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents such as video, audio, still image, text, and 2 dimensional geometric objects including circle and rectangle, and to easily author events of objects in response to user's input inputted through a mouse or a keyboard.
[37] The data access unit 22 generally controls the terrestrial DMB contents editing and authoring apparatus 20, and provides an interface between the internal data structure of an object data storing unit 211, an event data storing unit 212, a scene data storing unit 213, and an editing data storing unit 214 shown in Fig. 3 and the user interfacing unit 21, and an interface between the internal data structure 210 and the XMT DOM that is an interface data structure of the data access unit 22.
[38] The XMT access unit 23 includes an XMT generator (not shown) for generating an
XMT file based on the contents of the XMT DOM, and a XMT analyzing unit (not shown) for reading the contents of the XMT file to the XMT DOM. The XMT generator (not shown) converts edited or authored contents to an XMT format that is an MPEG-4 standard.
[39] The XMT access unit 23 uses the XMT DOM as an internal data structure, provides an application programming interface (API) to access the XMT DOM, stores the editing and authoring information stored in the internal data structure 210 of the data access unit 22 to the XMT DOM, reads the stored information the XMT DOM, and transfers the read information to the user interfacing unit 21 through the data access unit 22.
[40] The MP4 generator 24 transforms text type XMT file to binary type MP4 files, and transforms the MP4 file to the XMT file according to an embodiment.
[41] The media decoding unit 25 decodes media object such as video, audio, still
images, texts and 2-D geometric objects, for example, circle and rectangle.
[42] The terrestrial DMB contents storing apparatus 30 includes a media file storing unit
31 for storing media file of terrestrial DMB interactive contents, a MP4 file storing unit 32 for storing terrestrial DMB interactive contents data in a MP4 format, and an XMT file storing unit 33 for providing stored XMT files to the MP4 generator 24 to transform the XMT file to the MP4 file.
[43] The terrestrial DMB contents transmitting apparatus 40 includes: a contents storing and managing unit 41 for receiving the terrestrial DMB interactive contents from the terrestrial DMB contents storing apparatus 30, storing and managing the received terrestrial DMB interactive contents; a scheduling unit 42 for managing a schedule for transmitting the terrestrial DMB interactive contents stored in the contents storing and managing unit 41 ; and a multiplexing unit 43 for receiving the terrestrial DMB interactive contents from the contents storing and managing unit 41 and multiplexing the terrestrial DMB interactive contents to a transmission format of terrestrial DMB standard, for example, MPEG-2 TS, in response to the control of the scheduling unit 42.
[44] Hereinafter, the constitutional elements of the terrestrial DMB interactive apparatus
40 will be described.
[45] The contents storing and managing unit 41 reads the terrestrial DMB interactive contents stored in the terrestrial DMB contents storing apparatus 30, and stores and manages the read terrestrial DMB interactive contents. Also, the contents storing and managing unit 41 provides the information for managing the terrestrial DMB contents to the scheduling unit 42 and the multiplexing unit 43. For example, the storing format of the terrestrial DMB contents is a MP4 file format.
[46] The scheduling unit 42 manages or edits a schedule for transmitting the terrestrial
DMB interactive contents stored in the contents storing and managing unit 41, and controls the terrestrial DMB contents storing and managing unit 41 and the multiplexing unit 43 to transmit the terrestrial DMB content according to a schedule.
[47] The multiplexing unit 43 receives the terrestrial DMB interactive contents to
transmit from the contents storing and managing unit 41 in response to the control of the scheduling unit 42, and multiplexes the terrestrial DMB interactive contents to the transmission format of terrestrial DMB standard, for example, MPEG-2 TS. Then, the multiplexing unit 43 transmits the multiplexed terrestrial DMB contents to the transmitter 50 in order to transmit to a satellite.
[48] Fig. 2 is a diagram illustrating a user graphic interface provided from a terrestrial
DMB content editing and authoring apparatus in accordance with an embodiment of the present invention.
[49] As shown in Fig. 2, the user interfacing unit 21 includes a menu bar 1, a tool bar 2, a media preview window 3 for providing a preview function for previewing media object such as video, a media explorer 4 for providing an explorer-like function, for example, showing a thumbnail view of media object, an attribute window 5 for showing the editing state of objects, a canvas window 6 for showing editing the spatial arrangement of objects, an event & action window 7 for showing editing behavior of objects, and a timeline window 8 for showing editing temporal arrangement of object.
[50] Fig. 3 is a block diagram illustrating a data access unit in a terrestrial DMB contents editing and authoring apparatus in accordance with an embodiment of the present invention.
[51] As shown in Fig. 3, the data access unit 22 includes: an internal data structure 210 for storing object data, event data, scene configuration data, and editing data of the terrestrial DMB contents editing and authoring apparatus 20 included in the terrestrial DMB contents; and an internal data structure managing unit for creating/ deleting/ correcting object data and event data, managing scene configuration data including structural locations of objects or events in a scene and related information thereof, and creating/ deleting/ correcting the editing information.
[52] The internal data structure 210 includes an object data storing unit 211 for storing information about objects forming the terrestrial DMB contents; an event data storing unit 212 for storing event data for each object; a scene data storing unit 213 for storing scene information of objects and events; and an editing data storing unit 214 for storing editing information of the terrestrial DMB contents editing and authoring apparatus 20.
[53] The object data storing unit 211 is a data structure having information about objects forming the terrestrial DMB contents. The event data storing unit 212 is a data structure having information about events for each object. The scene data storing unit 213 is a data structure having information about scene configuration of objects and events forming the terrestrial DMB contents. The editing data storing unit 214 is a data structure having editing information of the terrestrial DMB editing and authoring apparatus 20, such as UNDO/REDO information.
[54] The internal data structure managing unit 220 includes: an object processor 221 for managing the object data storing unit 211 and creating/correcting/deleting object data; an event processor for managing the event data storing unit 212 and creating/ correcting/deleting events such as the behavior of an object; an scene processor 223 for managing the scene data storing unit 213 and managing scene configuration data such as structural locations of objects or events in a scene; and an editing processor 224 for managing the editing data storing unit 214 and creating/correcting/deleting editing data.
[55] Fig. 4 is a flowchart illustrating a method for providing terrestrial DMB interactive contents in accordance with an embodiment of the present invention.
[56] At step S401, the terrestrial DMB contents transforming apparatus 10 receives the terrestrial DTV contents, analyzes a program specific information (PSI), an application information table (AIT), and related descriptors, and separates video streams, audio streams, and data streams therefrom.
[57] At step S402, the MPEG-2 video stream separated from the terrestrial DTV
contents is transformed to MPEG-4 AVC data as a terrestrial DMB video format, the AC-3 audio stream separated from the terrestrial DTV contents is transformed to MPEG-4 BSAC data as a terrestrial DMB audio format, and the ACAP terrestrial DTV data stream separated from the terrestrial DTV contents to terrestrial DMB data. The transformed data is stored in an XMT format and a MP4 format at step S403. [58] Then, the terrestrial DMB content editing and authoring apparatus 20 edits and authors terrestrial DMB contents according to editing and authoring information inputted from a user at step S404. The edited or authored terrestrial DMB contents are transformed to a XMT format and a MP4 format, and the transformed contents are stored in the terrestrial DMB contents storing apparatus 30 at step S405.
[59] The terrestrial DMB contents transmitting apparatus 40 reads the terrestrial DMB contents stored in the terrestrial DMB content storing apparatus 30 and stores the read contents at step S406, and creates a transmission schedule of the stored terrestrial DMB contents at step S407.
[60] Then, the terrestrial DMB interactive contents are multiplexed to a transmission format of terrestrial DMB standard, for example, MPEG-2 TS at step S408, and the multiplexed contents are transmitted to the transmitter 50 at step S409.
[61] The above described method according to the present invention can be embodied as a program and stored on a computer readable recording medium. The computer readable recording medium is any data storage device that can store data which can be thereafter read by the computer system. The computer readable recording medium includes a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a floppy disk, a hard disk and an optical magnetic disk.
[62] The present application contains subject matter related to Korean patent application
Nos. 2005-0119959 and 2006-0069956, filed with the Korean Intellectual Property Office on December 8, 2005, and July 25, 2006, respectively, the entire contents of which is incorporated herein by reference.
[63] While the present invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

Claims
[1] A terrestrial digital multimedia broadcasting (DMB) interactive contents
providing system, comprising:
a terrestrial DMB contents transforming means for transforming a terrestrial digital television (DTV) contents to a predetermined data format to transmit as a terrestrial DMB;
a terrestrial DMB contents editing and authoring means for providing an interface to a user to edit and author the transformed format of terrestrial DMB interactive contents, and editing and authoring the terrestrial DMB interactive contents according to temporal/spatial arrangement and behavior events of objects based on editing and authoring information of the user inputted through the interface;
a terrestrial DMB contents storing means for storing the terrestrial DMB interactive contents; and
a terrestrial DMB contents transmitting means for transmitting the stored terrestrial DMB contents to be suitable to a terrestrial DMB transmit format according to a transmit schedule.
[2] The terrestrial DMB interactive contents providing system as recited in claim 1, wherein the data format is a format of storing contents employing specification of moving picture experts group - phase 4 (MPEG-4) Systems including an extensible MPEG-4 textural format (XMT) and a MP4 file format.
[3] The terrestrial DMB interactive contents providing system as recited in claim 1, wherein the DMB transmission format is a MPEG-2 transport stream (TS) format.
[4] The terrestrial DMB interactive contents providing system as recited in claim 1, wherein the terrestrial DMB contents transforming means includes: a preprocessing means for receiving terrestrial DTV contents, analyzing program specific information (PSI), an application information table (AIT), and related descriptors, separating video streams, audio streams, and data streams therefrom, and integrally controls transforming terrestrial DMB contents;
a media transforming means for transforming MPEG-2 video stream of the terrestrial DTV contents to moving picture experts group - phase 4 advanced video coding (MPEG-4 AVC) stream, and transforming audio coding-3 (AC-3) audio stream of the terrestrial DTV contents to moving picture experts group - phase 4 bit sliced arithmetic coding (MPEG-4 BSAC) stream;
a data transforming means for transforming advanced common application platform (ACAP) data stream of the terrestrial DTV contents to predetermined formatted data for terrestrial DMB; and
an XMT/MP4 transferring means for storing the transformed data for the terrestrial DMB in an XMT format or a MP4 format.
[5] The terrestrial DMB interactive contents providing system as recited in claim 1, wherein the terrestrial DMB contents editing and authoring means includes: a user interfacing means for providing an interface for allowing a user to edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents and to easily author behaviors of objects in response to user's input;
a data accessing means for generally controlling an terrestrial DMB contents editing and authoring operation, providing an interface to access an internal data structure, connecting the internal data structure and the user interfacing means, and connecting the internal data structure and an extensible MPEG-4 textual format document object model (XMT DOM) that is an internal data structure of an XMT accessing means;
an XMT accessing means for providing an interface to access XMT DOM, storing editing and authoring information stored in the internal data structure of the data accessing means in the XMT DOM, reading the stored information in the XMT DOM, and transferring the read information to the user interfacing means through the data accessing means;
a transforming means for transforming XMT file among stored terrestrial DMB interactive contents to MP4 files and transforming the MP4 file to the XMT file; and
a media decoding means for decoding media object among the terrestrial DMB interactive contents stored in the terrestrial DMB contents storing means.
[6] The terrestrial DMB interactive contents providing system as recited in claim 5, wherein the XMT accessing means further includes a function for transforming the contents of the XMT DOM to an XMT file and storing the transformed XMT file, and a function for reading contents of XMT files stored in the terrestrial DMB contents storing means to the XMT DOM.
[7] The terrestrial DMB interactive contents providing system as recited in claim 6, wherein the terrestrial DMB contents storing means stores media files, MP4 files and XMT files of the terrestrial DMB interactive contents.
[8] The terrestrial DMB interactive contents providing system as recited in claim 5, wherein the terrestrial DMB contents transmitting means includes: a contents storing and managing means for receiving terrestrial DMB interactive contents from the terrestrial DMB contents storing means, storing and managing the received terrestrial DMB interactive contents; a scheduling means for managing a schedule for transmitting the terrestrial DMB interactive contents stored in the contents storing and managing means; and a multiplexing means for receiving the terrestrial DMB interactive contents from the contents storing and managing means and multiplexing the terrestrial DMB interactive contents to a transmission format of terrestrial DMB standard, MPEG-2 TS, in response to the control of the scheduling means.
[9] The terrestrial DMB interactive contents providing system as recited in claim 5, wherein the data accessing means includes:
an internal data structure storing object data, event data, scene configuration data, and editing data of the terrestrial DMB contents editing and authoring means, which are stored in XMT files; and
an interface for creating/ deleting/ correcting the object data and event data, managing scene configuration data including structural locations of objects or events in a scene and related information thereof, and creating/ deleting/ correcting the editing information.
[10] A terrestrial DMB editing and authoring apparatus comprising:
a user interfacing means for providing an interface for allowing a user to edit temporal and spatial arrangements of media objects used in terrestrial DMB interactive contents and to easily author behaviors of objects in response to user's input;
a data accessing means for generally controlling an terrestrial DMB contents editing and authoring operation, providing an interface to access a first internal data structure, connecting the first internal data structure and the user interfacing means, and connecting the first internal data structure and a second internal data structure of an extensible MPEG-4 textual format (XMT) accessing means; an XMT accessing means for providing an interface to access the second internal data structure, storing editing and authoring information stored in the first internal data structure of the data accessing means in the second internal data structure, reading the stored information in the second internal data structure, and transferring the read information to the user interfacing means through the data accessing means;
a transforming means for transforming XMT file among stored terrestrial DMB interactive contents stored in an storing means to MP4 files and transforming the MP4 file to the XMT file; and
a media decoding means for decoding media object among the terrestrial DMB interactive contents stored in the storing means.
[11] The terrestrial DMB editing and authoring apparatus as recited in claim 10, wherein the XMT accessing means wherein the XMT accessing means further includes a function for transforming the contents of the XMT DOM to an XMT file and storing the transformed XMT file, and a function for reading contents of XMT files stored in the terrestrial DMB contents storing means to the XMT DOM.
[12] The terrestrial DMB editing and authoring apparatus as recited in claim 11, wherein the storing means stores media files, MP4 files, and XMT files of the terrestrial DMB interactive contents.
[13] The terrestrial DMB editing and authoring apparatus as recited in claim 10, wherein data accessing means includes:
a first internal data structure storing object data, event data, scene configuration data, and editing data of the terrestrial DMB contents editing and authoring means, which are stored in XMT files; and
an interface for creating/deleting/correcting the object data and event data, managing scene configuration data including structural locations of objects or events in a scene and related information thereof, and creating/ deleting/ correcting the editing information.
EP06823968A 2005-12-08 2006-12-07 Apparatus for editing/authoring terrestrial dmb contents, interactive contents providing system for terrestrial dmb Withdrawn EP1958441A4 (en)

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KR100789783B1 (en) 2007-12-28
CN101326822B (en) 2010-06-02

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