WO2007129865A1 - System and method for providing tti data service - Google Patents

System and method for providing tti data service Download PDF

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Publication number
WO2007129865A1
WO2007129865A1 PCT/KR2007/002278 KR2007002278W WO2007129865A1 WO 2007129865 A1 WO2007129865 A1 WO 2007129865A1 KR 2007002278 W KR2007002278 W KR 2007002278W WO 2007129865 A1 WO2007129865 A1 WO 2007129865A1
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WO
WIPO (PCT)
Prior art keywords
data
video
tti
scene
information
Prior art date
Application number
PCT/KR2007/002278
Other languages
French (fr)
Inventor
Gwang-Soon Lee
Young-Ho Jeong
Chung-Hyun Ahn
Soo-In Lee
Original Assignee
Electronics And Telecommunications Research Institute
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Publication date
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to EP07746431A priority Critical patent/EP2022264A4/en
Publication of WO2007129865A1 publication Critical patent/WO2007129865A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
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  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • Computer Graphics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Provided are a system and method for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting. A transmission device for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, the transmission device including: an encoding unit for a specific scene of a video to be broadcasted, TTI data related to a specific scene, and link data for linking the specific scene with the TTI data; and a broadcasting stream creating unit for creating a transmission stream in conformity to a broadcasting standard based on the video data, the TTI data, and the encoded and outputted link data.

Description

Description
SYSTEM AND METHOD FOR PROVIDING TTI DATA
SERVICE
Technical Field
[1] The present invention relates to a system and method for providing a Traffic and
Travel Information (TTI) data service related to a video service in digital broadcasting; and, more particularly, to a system and method for providing a TTI data service related to a video service which can improve usefulness and applicability of the TTI data service by combining the data service based on TTI with an audio/video (AV) service provided as a basic service in digital broadcasting.
[2]
Background Art
[3] In digital broadcasting, a data service related to a video can be provided in diverse formats. As an example, terrestrial Digital Multimedia Broadcasting (DMB) adopts a Moving Picture Experts Group (MPEG)-4 technology to encode audio/video (AV) data and easily provides a data service related to a video including MPEG-4 Binary Format for Scene (BIFS) data.
[4] MPEG-4 controls coding of an audio/video object of diverse types. For example, a general video/audio object, texture, text, graphics, and synthetic audio may be an object of MPEG-4. Therefore, additional information as well as simple transmission of audio/video data is required in order to reform a multimedia scene in a reception device. That is, additional information for forming a meaningful scene by combining audio/video data or visual data in a reception device is called 'scene description'.
[5] The scene description information determines temporal/spatial arrangement of the audio/video object and is transmitted with the coded audio/video object. The scene description is expressed as a parameter according to the BIFS of a binary file format. Herein, nodes having an attribute and other information, e.g., an event source and a target, are encoded in a hierarchic structure of a tree format. Nodes located in an end of the node tree, i.e., leaf nodes, are related to basic audio/video data. However, intermediate nodes gather audio/video data, form the audio/video data into an audio/ video object, and perform procedures of grouping and converting audio/video objects, and other procedures. It is possible to change scene description on a time basis by renewing the scene description according to the method described above.
[6] An MPEG-4 system supports interaction between a user and an object to support active participation of the user in the operating audio/video information. A combining mechanism is performed within the scene description in a form of event connecting a source, targets, i.e., routes, or a sensor which is a special node capable of triggering an event under a specific condition. Since the event source and the targets are parts of the scene description nodes, they are bound to a specific scene interactively.
[7] Recently, a broadcasting and intelligent transport system (ITS) field adopts a
Transport Protocol Expert Group (TPEG) protocol, which is an international standard, to provide a Traffic and Travel Information (TTI) data service. The TTI application service, which is defined as a standard until now, includes Road Traffic Message (RTM) and Public Transport Information (PTI). The application services under consideration include parking information (PKI), congestion and travel time information (CTI), weather information (WEA), environment information alerts (EIA), point- of-interest (POI) and news information.
[8] In particular, the POI service provides travel information, culture information, and high value-added information on the point of interest such as public facilities, lodging and medical services to a driver, a walker, and people who intend to visit a specific destination or require detailed information on the point of interest. The news service is one of representative services of TTI capable of providing a specialized news service of a specific region.
[9] Since a currently provided TTI data service is independently provided with no regard to a video service, it is essentially required to be combined with a video service basically provided in the digital broadcasting in order to improve usefulness and applicability of the TTI data service.
[10]
Disclosure of Invention Technical Problem
[11] An embodiment of the present invention is directed to providing a system and method for providing a Traffic and Travel Information (TTI) data service related to a video service which can improve usefulness and applicability of the TTI data service by related to the data service based on TTI with an audio/video (AV) service provided as a basic service in digital broadcasting.
[12] Other objects and advantages of the present invention can be understood by the following description, and become apparent with reference to the embodiments of the present invention. Also, it is obvious to those skilled in the art of the present invention that the objects and advantages of the present invention can be realized by the means as claimed and combinations thereof. Technical Solution
[13] In accordance with an aspect of the present invention, there is provided a transmission device for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, the transmission device including: an encoding unit for a specific scene of a video to be broadcasted, TTI data related to the specific scene, and link data for linking the specific scene with the TTI data; and a broadcasting stream creating unit for creating a transmission stream according to a broadcasting standard based on the video data, the TTI data, and the link data that are encoded and outputted from the encoding means.
[14] In accordance with another aspect of the present invention, there is provided a reception device for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, the reception device including: a broadcasting stream receiving unit for receiving a broadcasting signal and extracting a video stream, a link data stream, and a TTI data stream; a decoding unit for decoding extracted each data stream into link data including video data, broadcasting timing information and spatial location information, and TTI data; a scene composition unit for forming a video scene based on the video data and combining the TTI data with the video scene based on the link data when the TTI data are transmitted through the control unit; a user interface for outputting the formed video scene, receiving a request for a TTI data service related to an output scene from a user, and transmitting the TTI data service to the control unit; and a control unit for receiving the TTI data related to the spatial location information from the decoding unit upon request for the TTI data service transmitted from the user and transmitting the TTI data to the scene composition unit.
[15] In accordance with another aspect of the present invention, there is provided a method for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, the method including the steps of: a) encoding a specific scene of a video to be broadcasted, TTI data related to a specific scene, link data for linking the specific scene with the TTI data; and b) creating and transmitting a transmission stream based on the encoded video data, TTI data, and link data in conformity to a broadcasting standard.
[16] In accordance with another aspect of the present invention, there is provided a method for receiving a TTI data service related to a video service in digital broadcasting, the method including the steps of: a) receiving a broadcasting signal and extracting a video stream, a link data stream, and a TTI data stream; b) decoding each data stream extracted in a broadcasting stream receiving unit into link data and TTI data including video data, broadcasting timing information and spatial location information; c) forming a video scene based on the video data and outputting the video scene on screen; and d) combining TTI data corresponding to the spatial location information with the video scene outputted on screen based on the link data upon request of the TTI data service from the user. [17] The present invention provides the data service based on TΗ among application services related to the audio/video (AV) service in the digital broadcasting. In particular, the present invention provides the TTI service, which is provided based on a Transport Protocol Experts Group (TPEG) protocol, with the audio/video service, which is a basic service of digital broadcasting, in Digital Multimedia Broadcasting (DMB), which is being commercially broadcasted.
[18] That is, the present invention authors spatial location information of a destination related to a specific scene of a video service in a transmitting part, i.e., latitude/ longitude or a destination/road/region name and transmits the spatial location information through a data channel related to a video such as MPEG-4 BIFS. Accordingly, when the user selects an application service icon while the user watches television, the present invention provides TΗ information such as actual map information of the region related to the specific scene, related detailed destination information, and news and user can automatically search an optimal route to the destination.
[19]
Advantageous Effects
[20] In the present invention, a Traffic and Travel Information (TTI) data service, which comes into the spot light in the view of information applicability and economical usefulness, can cooperate with a video service basically provided in a digital broadcasting by providing the TTI-based data service related to an audio/video (AV) service in the digital broadcasting. Accordingly, the present invention can contribute to development of diverse link data services and revitalization of the related market. Brief Description of the Drawings
[21] Fig. 1 shows a Traffic and Travel Information (TTI) data service related to a video service in a digital broadcasting in accordance with an embodiment of the present invention.
[22] Fig. 2 is a block diagram showing a transmission device for providing the TTI data service related to the video service in the digital broadcasting in accordance with the embodiment of the present invention.
[23] Fig. 3 is a block diagram showing a reception device for receiving the TΗ data service related to the video service in accordance with the embodiment of the present invention.
[24] Fig. 4 is a flowchart describing a method for providing the TTI data service related to the video service in a reception device in accordance with an embodiment of the present invention.
[25] Fig. 5 shows scene description when link data are transmitted in transmission device based on an MPEG-4 BIFS technology in accordance with the embodiment of the present invention.
Best Mode for Carrying Out the Invention
[26] Other objects and advantages of the present invention will become apparent from the following description of the embodiments with reference to the accompanying drawings. Therefore, those skilled in the field of this art of the present invention can embody the technological concept and scope of the invention easily. In addition, if it is considered that detailed description on a related art may obscure the points of the present invention, the detailed description will not be provided herein. The preferred embodiments of the present invention will be described in detail hereinafter with reference to the attached drawings.
[27] Fig. 1 shows a Traffic and Travel Information (TTI) data service related to a video service in a digital broadcasting in accordance with an embodiment of the present invention.
[28] As shown in Fig. 1, while a video 10, i.e., a basic TV service in a digital broadcasting, is displayed on screen, the TTI data service including point of interest (POI) on a specific scene such as a tourist area, restaurants, and resorts and news are provided. Subsequently, display menus 101, 102 and 103 of an icon format for notifying that access to the data is possible are displayed. Accordingly, a user can figure out that the TTI data service is being provided.
[29] When a user of a receiving part wants to acquire TTI information such as map information related to a specific scene, detailed destination information and news, the user of the receiving part clicks the icons 101, 102 and 103. Subsequently, a reception device responds to the user's request and outputs related map information, detailed destination information, and news information on screen.
[30] A system for providing the TTI data service related to the video service in digital broadcasting according to the present invention which provides the service as shown in Fig. 1 includes a transmission device (see Fig. 2) and a reception device (see Fig. 3). Each device will be described with reference to Figs. 2 and 3.
[31] Fig. 2 is a block diagram showing a transmission device for providing the TTI data service related to the video service in the digital broadcasting in accordance with the embodiment of the present invention.
[32] As shown in Fig. 2, the transmission device for providing the TTI data service related to the video service according to the present invention includes a data authoring server 20, an encoding unit 21, a broadcasting stream creating unit 22, and a radio frequency (RF) transmitting unit 23. The encoding unit 21 encodes a specific scene of a video to be broadcasted, TTI data related to a specific scene, and synchronized data for syn- chronizing the specific scene with the TTI data. The encoding unit 21 includes an audio/video (A/V) encoder 211, a synchronized data encoder 212, and a TTI data encoder 213.
[33] In order to provide the data service based on TTI related to the AV service in the digital broadcasting, it is required to collect spatial location information on a specific scene of a moving picture to be broadcasted through the AV encoder 211 and author related TTI data.
[34] That is, the data authoring server 20 collects and authors spatial location information on a specific scene of a moving picture to be broadcasted through the AV encoder 211 or an object in the specific scene, e.g., latitude/longitude or a destination/road/region name. Also, the data authoring server 20 collects TTI data such as traffic, region, travel and news information in real-time/nonreal-time and authors spatial location information corresponding to a specific scene and information for synchronizing TTI data, e.g., location information/TTI data service notification information, broadcasting timing information. Herein, the location information/TTI data service notification information denotes an icon notifying start of location information/TTI data service and event information generated when the icon is controlled. The broadcasting timing information denotes broadcasting timing information of a specific video scene related to the TTI data. The spatial location information, the location information/TTI data service notification information, and the broadcasting timing information are called synchronized data, which are data for synchronizing the specific scene of the video with the TTI data.
[35] The data authoring server 20 stores the TTI data and the synchronized data, transmits the TTI data to the TTI data encoder 213, and transmits the synchronized data such as the spatial location information to the synchronized data encoder 212. The data authoring server 20 transmits the synchronized data and the TTI data to the TTI data encoder 213 and the synchronized data encoder 212 to be synchronized with the audio/ video to be broadcasted through the AV encoder 211. According to the system configuration, synchronized data authoring and TTI data authoring of the data authoring server 20 respectively operates.
[36] The synchronized data encoder 212 encodes location information, an icon notifying transmission of the TTI data and start of the service, event information generated by control of icon, broadcasting timing information, spatial location information in a specific scene such as latitude/longitude or a destination/road/region name.
[37] In particular, when an MPEG-4 BIFS technology is adopted, description of the scene,
Initial Object Descriptor (IOD) for transmission of related data, Object Descriptor (OD) and BIFS are encoded in the synchronized data encoder 212. Also, the synchronized data encoder 212 performs an MPEG-4 SL packetizing function for timing synchronization of the video and the BIFS data.
[38] When the synchronized data encoder 212 transmits the synchronized data based on the MPEG-4 BIFS technology, the spatial location information of the specific video scene is defined as a child node of an icon-related node, and related map data and TTI data are described by Uniform Resource Indicator (URL) in the lowest nodes (refer to Fig. 5).
[39] The TTI encoder 213 encodes TTI data including detailed destination information and news information related to a specific location corresponding to the POI and the news service based on diverse data transmission protocols such as transport protocol expert group (TPEG). When an interactive data broadcasting system is build according to the combination of a communication network for broadcasting such as TPEG and Multimedia Object Transfer (MOT), the TTI data can be transmitted based on diverse communication protocols as well as diverse data transmission protocols upon request of the user in a reception device.
[40] The broadcasting stream creating unit 22 creates transmission stream base on video data, TTI data, and synchronized data encoded and outputted in the encoding unit 21 in conformity to a broadcasting standard. To be specific, the broadcasting stream creating unit 22 applies procedures of multiplexing, channel encoding and modulating to each stream encoded and outputted in the encoding unit 21, creates a transmission stream, and transmits the transmission stream by the RF transmitting unit 23.
[41] Also, the broadcasting stream creating unit 22 transmits synchronized data through an individual data channel related to the audio/video channel for transmitting the audio/video, which is outputted in the AV encoder 211, or transmits the object of the audio/video outputted in the AV encoder 211 and the synchronized data through the identical channel.
[42] Fig. 3 is a block diagram showing a reception device for receiving the TTI data service related to the video service in accordance with the embodiment of the present invention. That is, Fig. 3 shows a reception device for receiving the TTI data service among application services related to the AV service in the digital broadcasting.
[43] As shown in Fig. 3, a broadcasting signal transmitted from a transmitting part (see
Fig. 2) through a broadcasting network is received, demodulated and de-multiplexed in a broadcasting stream receiving unit 31 and outputted as each stream, e.g., a video stream, a synchronized data stream, and a TTI data stream. The AV stream for basic TV broadcasting is decoded by an AV decoder 321 and a synchronized data stream synchronized with audio/video is decoded in a synchronized data decoder 302.
[44] When the synchronized data decoder 322 is an MPEG-4 BIFS decoder, the synchronized data decoder 322 extracts the scene description information and the synchronized data by decoding IOD, OD and BIFS transmitted through an MPEG-4 system mechanism. The broadcasting timing information, the icon notifying start of an icon service, and event information of a specific video scene related to the TTI data among data extracted from the synchronized data decoder 322 are transmitted to a scene composition unit 33 and the spatial location information is transmitted to the control unit 35.
[45] The video/audio, icons notifying start of service, and event information, which are decoded and transmitted in the AV decoder 321 and the synchronized data decoder 322, are formed as a scene in the scene composition unit 33 and outputted on screen through a user interface 34 having a graphic process function. The scene composition unit 33 performs composition and rendering functions.
[46] The scene displayed on reception device screen through the user interface 34 is basically audio/video. When location information related to a specific scene is transmitted, it is notified to the user through output of graphic displaying means such as a specific icon. Accordingly, when the user selects an icon through a user input interface such as a key or a touch pad, a related event occurs.
[47] The control unit 35 performs a listening process on the event and brings spatial location information on the event from the synchronized data decoder 322. Also, the control unit 35 requests map data or detection route information on the spatial location information brought from the synchronized data decoder to a navigation application program 36 and brings the map data or the detection route information on the spatial location information. Otherwise, the control unit 35 searches and brings TTI data including detailed destination information and news information related to location information.
[48] The map data, the detection route information, or the TTI data brought from the navigation application program 36 or a TTI decoder 323 to the control unit 35 are transmitted to the scene composition unit 33. The scene composition unit 33 composes the scene based on data transmitted from the navigation application program 36 or the TTI decoder 323 and the synchronized data such as broadcasting timing information transmitted from the synchronized data decoder 322, and outputs the scene on screen through the user interface 34.
[49] The control unit 35 controls entire hardware or software of a reception device such as a middleware, searches, processes and exchanges data with the application program upon request of the user.
[50] The user interface 34 overlaps and outputs map data related to a specific video scene, detection route information or TTI data including detailed destination information and news information with a video screen, or outputs the map data related to a specific video scene, the detection route information or the TTI data according to a screen dividing method. [51] As described above, the present invention provides the TΗ data service related to the video to the user and provides a new data service related to the video for providing a destination and the map information by combining with navigation.
[52] Fig. 4 is a flowchart describing a method for providing the TTI data service related to the video service in a reception device in accordance with an embodiment of the present invention.
[53] While a basic audio/video is outputted in the reception device of Fig. 3 at step S400, a map/TTI data display icon related to the outputted scene, i.e., an icon displaying that a map service or a TTI data service can be provided, is outputted on screen at step S401.
[54] It is checked at step S402 whether the user selects an icon. When the user does not select an icon, only the audio/video is outputted in the reception device at step S400. When the user selects the icon for acceptance of the data service, an event related to location information occurs in the inside of the reception device at step S403.
[55] The reception device creates data related to location information through the navigation application program or the TΗ decoder such as data location-related map, TTI data, and optimal route information at step S404.
[56] The map data or the TΗ data created in the step S404 are overlapped and basically outputted at step S405. Otherwise, the map data or the TΗ data are divided and outputted.
[57] Fig. 5 shows scene description when link data are transmitted in transmission device based on the MPEG-4 BIFS technology in accordance with the embodiment of the present invention.
[58] The scene description 50 displayed as a BIFS command describes additional information for forming a meaningful scene by combining the AV stream, the icon, the map data, and the TTI data in the reception device.
[59] The AV data are transmitted to the audio/video stream, decoded and respectively described in a node 502 of the lowest level.
[60] Icons 101, 102, 103 of Fig. 1 are described as a plurality of nodes 501 and related location information of a specific scene may be defined as a child node 505 of the icon-related node 501. The map data and the TΗ data related to a specific scene can be described by Uniform Resource Indicator (URL) in nodes 503 and 504 of the lowest level. In the scene description, nodes having an attribute of icon and other information, e.g., an event source and a target, are described in a hierarchic structure. When an attribute value of a node 505 showing location information, e.g., the latitude/longitude or the destination/road/region name, is changed according to a time, i.e., when a specific scene of a video is changed and related spatial location information, e.g., the latitude/longitude or the destination/road/region name, is changed, procedures of inserting/deleting/changing a node attribute value are performed by the BIFS update mechanism.
[61] In the receiving part, the TΗ data such as map information, detailed destination information, news information are changed by the navigation application program and the TΗ decoder based on the location information changed by the BIFS update mechanism and may be used in forming of a new scene.
[62] As described above, the technology of the present invention can be realized as a program and stored in a computer-readable recording medium, such as CD-ROM, RAM, ROM, floppy disk, hard disk and magneto-optical disk. Since the process can be easily implemented by those skilled in the art of the present invention, further description will not be provided herein.
[63] The present application contains subject matter related to Korean Patent Application
Nos. 2006-0042108 and 2006-0125140, filed in the Korean Intellectual Property Office on May 10, 2006 and December 8, 2006, respectively, the entire contents of which is incorporated herein by reference.
[64] 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 claim.

Claims

Claims
[1] A transmission device for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, comprising: an encoding means for a specific scene of a video to be broadcasted, TTI data related to the specific scene, and link data for linking the specific scene with the TTI data; and a broadcasting stream creating means for creating a transmission stream in conformity to a broadcasting standard based on the video data, the TTI data, and the encoded and outputted link data.
[2] The transmission device of claim 1, wherein the encoding means includes: a video encoder for encoding a video to be broadcasted; a TTI encoder for encoding TTI data related to a location of a specific scene of a video to be encoded and broadcasted in the video encoder based on a Transport Protocol Expert Group (TPEG); and a link data encoder for encoding link data for linking the specific scene with the TTI data.
[3] The transmission device of claim 2, further comprising: a data authoring means for collecting/authoring spatial location information and TTI data on a specific scene of the video to be broadcasted, authoring link data for linking the specific scene with the TTI data, transmitting the TTI data to the TTI encoder, and transmitting the link data to the link data encoder.
[4] The transmission device of claim 1, wherein the link data include broadcasting timing information, TTI data service notification information, and the spatial location information on a specific video scene.
[5] The transmission device of claim 4, wherein the data authoring means transmits the link data and the TTI data to the corresponding encoder to synchronize the link data and the TTI data with the video to be broadcasted through the video encoder.
[6] The transmission device of claim 4, wherein the broadcasting stream creating means transmits the link data through an additional data channel connected to a video channel through which the video outputted from the video encoder is transmitted.
[7] The transmission device of claim 4, wherein the broadcasting stream creating means transmits an object of the video to be outputted from the video encoder and the link data through the same channel.
[8] The transmission device of claim 4, wherein the broadcasting timing information is broadcasting timing information of a specific video scene related to the TTI data.
[9] The transmission device of claim 4, wherein when the link data are encoded based on a Moving Picture Experts Group 4 Binary Format for Scenes (MPEG-4 BIFS) technology, the spatial location information of the specific video scene is defined as a child node of an icon-related node and related map data and TTI data are described by Uniform Resource Indicator (URL) in nodes of the lowest level.
[10] The transmission device of claim 9, wherein in the link data, an attribute value of a spatial location information node is changed due to a change of the specific scene of the video, the node attribute value is inserted, deleted and changed by a BIFS update mechanism.
[11] A reception device for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, comprising: a broadcasting stream receiving means for receiving a broadcasting signal and extracting a video stream, a link data stream, and a TTI data stream; a decoding means for decoding extracted each data stream into link data including video data, broadcasting timing information and spatial location information, and TTI data; a scene forming means for forming a video scene based on the video data and combining the TTI data with the video scene based on the link data when the TTI data are transmitted through the control means; a user interface means for outputting the formed video scene, receiving a request for a TTI data service related to an output scene from a user, and transmitting the TTI data service to the control means; and a control means for receiving the TTI data related to the spatial location information from the decoding means upon request for the TTI data service transmitted from the user and transmitting the TTI data to the scene forming means.
[12] The reception device of claim 11, wherein the decoding means includes: a video decoder for decoding the extracted video stream into video data and transmitting the video data to the scene forming means; a link data decoder for decoding the extracted link data stream, transmitting broadcasting timing information and TTI data service notification information to the scene forming means, and transmitting the spatial location information to the control means; and a TTI decoder for decoding and transmitting the extracted TTI data stream upon request of the control means.
[13] The reception device of claim 12, wherein the user interface means outputs the formed video scene, displays on screen that the TΗ data service related to the output scene are available for display, generates an event upon request of the TTI data of the user, and transmits the event to the control means.
[14] The reception device of claim 11, wherein when a transmitting part encodes the link data based on an MPEG-4 BIFS technology, the spatial location information of the specific video scene is defined as a child node of an icon-related node and the related map data and TTI data are described by Uniform Resource Indicator (URL) in nodes of the lowest level.
[15] The reception device of claim 11, wherein the broadcasting timing information is broadcasting timing information of a specific video scene related to the TΗ data.
[16] The reception device of claim 11, wherein when the user requests one of map data and detection route information, the user interface means generates an event and transmits the event to the control means; and the control means receives one of the requested map data and detection route information from a navigation application program and transmits what is received between the requested map data and detection route information to the scene forming means.
[17] The reception device of claim 16, wherein the user interface means outputs the
TTI data, the map data, and the detection route information related to the specific scene in an overlapped form with a video screen.
[18] The reception device of claim 16, wherein the user interface means outputs the
TTI data, the map data, and the detection route information related to the specific scene by dividing the video screen.
[19] A method for providing a Traffic and Travel Information (TTI) data service related to a video service in digital broadcasting, comprising the steps of: a) encoding a specific scene of a video to be broadcasted, TΗ data related to a specific scene, link data for linking the specific scene with the TTI data; and b) creating and transmitting a transmission stream based on the encoded video data, TTI data, and link data in conformity to a broadcasting standard.
[20] The method of claim 19, wherein the step a) includes the steps of: al) encoding a video to be broadcasted; a2) encoding TTI data related to a location of a specific scene to be broadcasted based on a Transport Protocol Export Group (TPEG) protocol; and a3) encoding link data for linking the specific scene with the TTI data.
[21] The method of claim 19, further comprising the step of: c) collecting/authoring spatial location information and TTI data on a specific scene of a video to be broadcasted, and authoring link data for linking the specific scene with the TTI data.
[22] The method of claim 19, wherein the link data include broadcasting timing in- formation, TTI data service notification information, and spatial location information on a specific video scene.
[23] The method of claim 22, wherein the broadcasting timing information is broadcasting timing information of a specific video scene related to the TTI data.
[24] The method of claim 19, wherein when the link data are encoded based on an
MPEG-4 BIFS technology, the spatial location information of the specific video scene is defined as a child node of an icon-related node and the related map data and TTI data are described by Uniform Resource Indicator (URL) in nodes of the lowest level.
[25] The method of claim 24, wherein in the link data, when an attribute value of a spatial location information node is changed due to a change in the specific scene in the video, the node attribute value is inserted, deleted and changed by a Binary Format for Scenes (BIFS) update mechanism.
[26] A method for receiving a video service related to a Traffic and Travel Information (TTI) data service in digital broadcasting, comprising the steps of: a) receiving a broadcasting signal and extracting a video stream, a link data stream, and a TTI data stream; b) decoding each data stream extracted in a broadcasting stream receiving means into link data and TTI data including video data, broadcasting timing information and spatial location information; c) forming a video scene based on the video data and outputting the video scene on screen; and d) combining TTI data corresponding to the spatial location information with the video scene outputted on screen based on the link data upon request of the TTI data service from the user.
[27] The method of claim 26, wherein when a transmitting part encodes the link data based on an MPEG-4 BIFS technology, the spatial location information of the specific video scene is defined as a child node of an icon-related node and the related map data and TTI data are described by Uniform Resource Indicator (URL) in nodes of the lowest level.
[28] The method of claim 26, wherein the broadcasting timing information is broadcasting timing information of the specific video scene related to the TTI data.
[29] The method of claim 26, further comprising the step of: e) when the user requests one of map data and detection route information, receiving one of the requested map data and detection route information from a navigation application program and combining the map data or detection route information with the video scene outputted on screen.
PCT/KR2007/002278 2006-05-10 2007-05-09 System and method for providing tti data service WO2007129865A1 (en)

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