KR100964439B1 - Mobile telecommunication system, and method for Synchronization between broadcasting contents and data information - Google Patents

Abstract

According to the present invention, when providing a broadcast content from a broadcasting center to a DMB terminal, the service providing server requests the start server for the current broadcast from the broadcast server, and the sync server detects the broadcast start PTS based on the scene change comparison algorithm. It transmits to the providing server and transmits the starting PTS detected by the service providing server to the DMB terminal so that the DMB terminal synchronizes the broadcasting content and the PPL information based on the starting PTS. A method of synchronizing information.

According to an aspect of the present invention, there is provided a mobile communication broadcasting system comprising: a digital broadcast receiving terminal configured to receive broadcast content related to digital multimedia and display the same in synchronization with PPL information based on synchronization information; And a scene change file for the broadcast content. When the sync information is received by sending a sync information request message requesting the sync information for the broadcast content, the sync information is transmitted to the digital broadcast receiving terminal. Giving service providing server; And receiving the synchronization information request message from the service providing server, downloading a scene change file based on the synchronization information request message from the service providing server, and detecting the synchronization information from the scene change file to the service providing server. And a synchronous server for transmitting.

According to the present invention, the unidirectionality of the satellite DMB broadcast service and the terrestrial DMB broadcast service can be overcome, and PPL information requested by the user can be shown in time in synchronization with the broadcast content while viewing the broadcast content. In addition, it is possible to provide a variety of information through the convergence of satellite DMB broadcasting service, terrestrial DMB broadcasting service and PPL information without changing the structure of the existing broadcasting system.

Broadcast Content, Satellite, Terrestrial, DMB, PPL, Additional Information, PTS, FTP

Description

Mobile telecommunication system, and method for synchronization between broadcasting contents and data information

The present invention relates to a method for synchronizing a content of a mobile communication system and digital multimedia broadcasting and a product placement information, and more particularly, when providing broadcast content from a broadcasting center to a DMB terminal. The server requests the start PTS of the current broadcast to the sync server, and the sync server detects the broadcast start PTS based on the scene change comparison algorithm and delivers it to the service providing server, and transmits the detected start PTS to the DMB terminal. The present invention relates to a mobile communication broadcasting system and a method of synchronizing broadcast content with additional information, such that the DMB terminal synchronizes broadcast content and PPL information based on the starting PTS.

In recent years, the great flow of multimedia services has been flowing into the digital convergence era. Accordingly, broadcasting, communication, and content cross each other, foretelling the emergence of a new service. According to the demands of the times, digital multimedia broadcasting (DMB) services are provided.

DMB service is a mobile multimedia broadcasting service that combines broadcasting and communication, and provides digital (CD) -level sound quality, data, and high-definition video services through mobile communication terminals, personal digital assistants (PDAs), and vehicle terminals. It is a broadcast service.

Currently, the mobile communication terminal has such a function of receiving digital multimedia broadcasting. Accordingly, the mobile communication subscribers can watch dramas or listen to high quality music using the mobile communication terminal even in the subway or bus. You can always get information like stock quotes, and even see the title and lyrics of the music you're listening to with subtitles and photos.

Satellite DMB and terrestrial DMB services, which are commercially available and serviced in Korea, are a new concept of mobile broadcasting services that overcome the spatial limitations of existing broadcasting and provide differentiated broadcasting services as mobile terminals. The satellite DMB service broadcasts 17 video channels, 20 audio channels, and 1 data channel, which is provided monthly. The terrestrial DMB service also broadcasts 7 video channels, 13 audio channels and 8 data channels and provides them for free.

Meanwhile, satellite DMB and terrestrial DMB users form a different user group from those of existing mobile communication terminals, and the creation of new services for this new type of user group is very important.

In addition, as satellite DMB and terrestrial DMB users watch broadcast contents, there is a possibility that the existing data service market such as Nate or June provided by mobile communication service may be encroached. In order to overcome this problem, there is a great demand for service providers to open new markets through the convergence of various contents of DMB service and mobile communication service.

Currently, home shopping, which is exploding in broadcasts such as cable TV, has now become a primary means of selling homes and goods, combining satellite DMB and terrestrial DMB with home shopping, or broadcasting content and products from satellite DMB and terrestrial DMB. If the combination of placement information can be activated to activate mobile e-commerce, this will increase sales and increase data utilization.

Here, the broadcasting convergence PPL information service is one of marketing strategies. As the size of the video industry grows and becomes more sophisticated, the company introduces and promotes specific products such as movies and dramas. When the user selects the data, it is transmitted to the PPL server through the bidirectional channel, and the detailed information is transmitted to the user, which is a service that is displayed in the mobile communication terminal by properly interworking with the satellite DMB and terrestrial DMB contents.

Accordingly, in order to provide such PPL information service, a technology for interworking satellite DMB and terrestrial DMB services, which are unidirectional services, with the wireless Internet of two-way channel is required. In terms of implementation in a mobile communication terminal, a technology is required, and a technology for interworking between a synchronization server and a service providing server for synchronization of such a service is required.

In order to solve the above-mentioned requirements, the present invention provides a broadcast content from a broadcasting center to a DMB terminal, when the service providing server requests the start PTS of the current broadcast to the synchronization server, and the synchronization server based on the scene change comparison algorithm. The mobile communication detects and transmits the broadcast start PTS to the service providing server, and transmits the detected start PTS to the DMB terminal so that the DMB terminal synchronizes the broadcast content and the PPL information based on the start PTS. An object of the present invention is to provide a broadcast system and a method for synchronizing broadcast content with additional information.

According to an aspect of the present invention, there is provided a mobile communication broadcasting system, comprising: a digital broadcast receiving terminal configured to receive broadcast content related to digital multimedia and display the same in synchronization with PPL information based on synchronization information; And a scene change file for the broadcast content. When the sync information is received by sending a sync information request message requesting the sync information for the broadcast content, the sync information is transmitted to the digital broadcast receiving terminal. Giving service providing server; And receiving the synchronization information request message from the service providing server, downloading a scene change file based on the synchronization information request message from the service providing server, and detecting the synchronization information from the scene change file to provide the service providing server. It contains a synchronous server that sends data to the server.

The sync information request message may include a PTS detection request message including information on a specific broadcast program, FTP information for transmitting the scene change file, and information about the scene change file. to be.

The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time, and the FTP information includes an address, a directory, an ID, a password, and the like. The information on the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file.

In addition, the synchronization server, after downloading the scene change file from the message providing server, the message providing server receives a response message of the synchronization information request message indicating that the information on a specific broadcast program and the scene change file has been received. Will be sent to.

In addition, the synchronization server detects a program start PTS from the scene change file and transmits the synchronization information including the program start PTS to the service providing server.

The synchronization information may include the program start PTS, a channel number, a program ID, and a program start date.

The digital broadcast reception terminal synchronizes the broadcast content and the PPL information based on a program start PTS included in the synchronization information.

On the other hand, the synchronization method of the broadcast content and the additional information according to the present invention for achieving the above object includes a service providing server for providing additional information, and a synchronization server for providing synchronization information so that the additional information is synchronized with the broadcast content. A synchronization method between broadcast content and additional information of a system, comprising: (a) transmitting, by the service providing server, a synchronization information request message for a specific broadcast program to the synchronization server; (b) the synchronization server downloading a scene change file from the service providing server based on the synchronization information request message; (c) the sync server detecting the sync information from the scene change file and transmitting the sync information to the service providing server; (d) the service providing server transmitting the synchronization information to a digital broadcast receiving terminal; And (e) synchronizing and displaying the broadcast content and the additional information based on the synchronization information in the digital broadcast receiving terminal.

Also, in the step (a), the sync information request message includes information about the specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file. S (PTS) detection request message.

The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time, and the FTP information includes an address, a directory, an ID, a password, and the like. The information on the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file.

Also, in the step (b), after the synchronization server downloads the scene change file, the message includes a response message of the sync information request message indicating that the scene broadcast file has received information about the specific broadcast program and the scene change file. It is sent to the provisioning server.

In addition, the response message of the synchronization information request message includes a channel number, a program ID, and a program start date.

In the step (c), the synchronization server detects a program start PTS from the scene change file, and transmits the synchronization information including the program start PTS to the service providing server. Will be done.

In addition, the synchronization information includes the program start PTS, a channel number, a program ID, and a program start date.

In the step (e), the digital broadcasting reception terminal synchronizes the broadcasting content with the PPL information based on the synchronization information including the program start PTS.

On the other hand, the synchronization server according to the present invention for achieving the above object, the communication unit for communicating with a service providing server for providing additional information to the digital broadcast receiving terminal for receiving and displaying broadcast content related to digital multimedia; A synchronization information detector for detecting synchronization information from the scene change file downloaded from the service providing server; And a controller configured to detect the synchronization information through the synchronization information detection unit and control the detected synchronization information to be transmitted to the service providing server through the communication unit when the synchronization information request message is received from the service providing server. .

The sync information detector detects a program start PTS for the broadcast content from the scene change file.

The sync information request message may include a PTS detection request message including information on a specific broadcast program, FTP information for transmitting the scene change file, and information about the scene change file. Can be.

The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time, and the FTP information includes an address, a directory, an ID, a password, and the like. The information on the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file.

The control unit may download the scene change file from the service providing server through an FTP connection with the service providing server through the communication unit.

On the other hand, the synchronization method of the broadcast content and the additional information of the synchronization server according to the present invention for achieving the above object is a synchronization method of the broadcast content and the additional information of the synchronization server to communicate with the service providing server for providing the additional information, (a) receiving a synchronization information request message for a specific broadcast program from the service providing server; (b) downloading a scene change file from the service providing server based on the synchronization information request message; And (c) detecting the sync information from the scene change file and transmitting the sync information to the service providing server.

Also, in the step (a), the sync information request message includes information about the specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file. S (PTS) detection request message.

The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time, and the FTP information includes an address, a directory, an ID, a password, and the like. The information on the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file.

In addition, in the step (b), after the scene change file is downloaded, information on the specific broadcast program and a response message of the synchronization information request message indicating that the scene change file has been received are transmitted to the message providing server. Will be done.

In addition, the response message of the synchronization information request message includes a channel number, a program ID, and a program start date.

In the step (c), the program start PTS is detected from the scene change file, and the synchronization information including the program start PTS is transmitted to the service providing server.

The synchronization information includes the program start PTS, a channel number, a program ID, and a program start date.

On the other hand, the recording medium according to the present invention for achieving the above object, (a) receiving a synchronization information request message for a specific broadcast program from the service providing server; (b) downloading a scene change file from the service providing server based on the synchronization information request message; And (c) a program for processing the step of detecting the sync information from the scene change file and transmitting the sync information to the service providing server.

Also, in the step (a), the sync information request message includes information about the specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file. S (PTS) detection request message.

The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time, and the FTP information includes an address, a directory, an ID, a password, and the like. The information on the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file.

Also, in the step (b), after the synchronization server downloads the scene change file, the message includes a response message of the sync information request message indicating that the scene broadcast file has received information about the specific broadcast program and the scene change file. It is sent to the provisioning server.

In addition, the response message of the synchronization information request message includes a channel number, a program ID, and a program start date.

In the step (c), the program start PTS is detected from the scene change file, and the synchronization information including the program start PTS is transmitted to the service providing server.

The synchronization information includes the program start PTS, a channel number, a program ID, and a program start date.

According to the present invention, the unidirectionality of the satellite DMB broadcast service and the terrestrial DMB broadcast service can be overcome, and PPL information requested by the user can be shown in time in synchronization with the broadcast content while viewing the broadcast content.

In addition, it is possible to provide a variety of information through the convergence of satellite DMB broadcasting service, terrestrial DMB broadcasting service and PPL information without changing the structure of the existing broadcasting system.

Details of the object and technical configuration of the present invention and the resulting effects thereof will be more clearly understood by the following detailed description based on the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically illustrating a configuration of a mobile communication broadcast system to which a synchronization method between broadcast content and additional information is applied according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication broadcast system 100 to which the present invention is applied includes a broadcast center 110, a service providing server 120, a synchronization server 130, a content server 140, a PDSN 150, and a mobile terminal. Communication network 160 and DMB terminal 170;

The broadcast center 110 provides satellite DMB content to the DMB terminal 170 through satellite or transmits terrestrial DMB content to the DMB terminal 170 through a terrestrial transmission station.

The service providing server 120 holds a scene change file for broadcast content including satellite DMB content and terrestrial DMB content, and provides the DMB terminal 170 with additional information about the broadcast content, for example, PPL information.

In addition, the service providing server 120 transmits a synchronization information request message for requesting synchronization information between the broadcast content and the additional information to the synchronization server 130, and receives the synchronization information from the synchronization server 130. (170).

In addition, the service providing server 120 is a GUIP (Graphic User Interface in Picture) server that provides information on the type of additional information that can be provided for each object displayed on the digital multimedia broadcasting screen. Hereinafter, the information provided by the service providing server 120 is referred to as PPL information.

That is, the service providing server 120 enables the user to select a specific object on the broadcast screen through the linkage with the DMB terminal 170 receiving the PPL information, and the user to receive additional information content on the selected object. As a supporting server, for example, when the user presses any GUIP start key while watching a broadcast, the contours of the objects (eg, a singer, a singer's costume, etc.) appearing on the broadcast screen after that point in time can be provided for each object. Information about the type of information (for example, the profile of the singer, the record of the singer, the lyrics of the song the singer sings, the information of the costume of the singer, etc.), and the information, that is, the download address (URL) of the content is transmitted.

In this case, the contour information is information for allowing the user to select an object. When the contour information is synchronized with the broadcast screen, the DMB terminal 170 may display the contour of the object selected according to the user's key input. Is provided as guide information that allows a particular object to be selected.

If the DMB terminal 170 has a touch screen, it is not necessary to provide guide information separately for object selection. In this case, the DMB terminal 170 transmits coordinate information of the point selected by the user to the service providing server 120. Information can be directly provided on the object at the selected point.

Therefore, in such a case, the service providing server 120 does not have to provide all PPL information for subsequent broadcasting in advance, and information and content URL of the type of additional information that can be provided for the object of the corresponding point when a specific point is selected. Only information (hereinafter referred to as GUIP information) needs to be provided.

As such, when the DMB terminal 170 selects an object (a person, a product, etc.) appearing on the broadcast screen while watching the broadcast, the service providing server 120 according to the present invention enables to check the information that can be provided for the selected object. A URL is provided so that content about the information can be downloaded from the content server 140.

The synchronization server 130 receives a synchronization information request message from the service providing server 120, downloads a scene change file based on the synchronization information request message from the service providing server 120, and uses a scene change file through a scene change comparison algorithm. The synchronization information is detected from the service providing server 120 and transmitted.

The content server 140 holds the content matched with the PPL information, and when the PPL information is selected by the DMB terminal 170 from the service providing server 120, the content server 140 displays the content matched with the selected PPL information. Will be downloaded.

The DMB terminal 170 receives and displays broadcast content and PPL information related to digital multimedia, and synchronizes and displays the broadcast content and PPL information based on the synchronization information. Here, the DMB terminal 170 is a broadcasting terminal including a mobile communication terminal and a PDA that can receive and display DMB broadcasting.

The DMB terminal 170 is a terminal for receiving satellite DMB broadcasting contents from the broadcasting center 110 through satellite or receiving terrestrial DMB broadcasting contents through a terrestrial transmission station, and includes a packet data service node (PDSN) 150 and a mobile communication network ( A terminal accessible to the service providing server 120 and the content server 140 via the 160.

In addition, although not shown in the drawing, the DMB terminal 170 transmits and receives data and signals with the mobile communication network 160 and receives a synchronization information including broadcast content and program start PTS from the mobile communication network 160. A display unit for displaying the received broadcast content, a storage unit for storing synchronization information including a program start PTS, and a broadcast content and PPL information based on the program start PTS It has a configuration including a control unit.

Herein, the mobile communication network 160 includes a base station transmitter (BTS), a base station controller (BSC), and a mobile switching center (MSC), and thus a detailed description thereof will be omitted.

2 is a configuration diagram schematically showing an internal configuration of a service providing server according to an embodiment of the present invention.

2, the service providing server 120 according to the present invention includes a service control unit 211, an information database 212, a PPL information search unit 213, a PPL information download unit 215, and a GUIP information provider. And 216.

The service providing server 120 according to the present invention not only provides a synchronization service for transmitting synchronization information regarding synchronization between broadcast content and additional information to the DMB terminal 170, but also broadcast content displayed on the DMB terminal 170. When an arbitrary object is selected by the user on the screen, a GUIP service for transmitting PPL information of the selected object to the DMB terminal 170 is also provided.

Therefore, in the synchronous service mode, the service control unit 211 transmits a synchronization information request message for a specific broadcast program to the synchronization server 130, receives the synchronization information from the synchronization server 130, and receives the DMB terminal 170. Will be sent to.

In the GUIP service mode, the service control unit 211 receives a GUIP start request message including channel information and program information of a broadcast currently being viewed from the DMB terminal 170 and includes the received GUIP start request message in the received GUIP start request message. The GUIP start response message including the received information is transmitted to the DMB terminal 170 so that the information can be confirmed by the user or the terminal.

The GUIP start request message is a service request message that is automatically generated and transmitted from the DMB terminal 170 as the user selects the GUIP start key from the DMB terminal 170. The GUIP start request message includes: MTS number, PTS information provided to know the current broadcast time; GUIP service type information, terminal type information (laptop, mobile phone, etc.), broadcast channel information, broadcast program information may be included.

PTS (Presentation Time Stamp) is a time stamp included in a DMB broadcast data packet. When PTS of the packet header is used, the PTS can find a screen when a user requests a service from a corresponding broadcast program. 120 provides PPL information or GUIP information for the time or after the time.

The GUIP service type information is information for distinguishing the download method, and the method of downloading the PPL information by the service providing server 120 includes the full download method, the partial download method, and the ON. There is an ONDEMAND method.

Here, the full download method and the split download method may download PPL information including contour information, types of additional information, and content URLs of a plurality of objects for subsequent broadcasts of the corresponding broadcast program when the PPL information request message is received. In this case, the overall download method is to download the PPL information for the entire broadcast program at once, and the split download method periodically divides the PPL information into a suitable size to distribute the network traffic load at regular intervals. Refers to the method of downloading sequentially.

The on-demand method is applied to the DMB terminal 170 having a touch screen. When a specific point is received and a GUIP information request message including coordinates is received, only the type of the additional information and the content URL of the corresponding object are received. This method downloads GUIP information.

Such a GUIP service type may be preset in the DMB terminal 170, may be selected when the GUIP start key is pressed, or may be stored in the information database 212 of the service providing server 120.

In addition, the information database 212 stores scene change files for a plurality of broadcast programs provided to the DMB terminal 170.

On the other hand, if the GUIP service is provided only to the service subscriber, the service control unit 211 checks whether the information of the subscriber exists in the information database 212 when receiving the GUIP start request message, performs the subscriber authentication and then includes the authentication result Will reply to the GUIP start response message.

Next, when the PPL information retrieval unit 213 receives the PPL information request message including the channel information and the program information of the broadcast from the DMB terminal 170, the PPL information database 214 based on the information included in the PPL information request message. PPL information about the broadcast program is searched for, and URL information for downloading the PPL information is provided to the DMB terminal 170.

At this time, since the PPL information search unit 213 should search for PPL information on the corresponding broadcast after the DMB terminal 170 requests PPL information, the PPL information search unit 213 is included in the PPL information request message received from the DMB terminal 170. The PPL information for the part to be watched later is searched using the PTS information indicating the reproduction time of the broadcast program.

The PPL information database 214 includes guide information for selecting an object displayed on a broadcast screen, PPL information including types of additional information that can be provided for each object, and content URL information for downloading each additional information content. Is stored for each broadcast program.

For example, in the case of a music broadcast program, an object of the PPL information may be a singer displayed on the screen. Examples of additional information that may be provided for the singer include profile information of the singer, record information of the singer, and the current information. There may be a song being played. In addition, if the user selects a song, the corresponding sound source content may be provided as additional information content. In this case, the download URL information of the sound source content is included in the PPL information.

In addition, the guide information is information for allowing a user to select one of the objects displayed on the broadcast screen. As described above, the guide information may be outline information for displaying the outline of the object, and may be variously designed in addition to the outline. . In addition, the guide information is synchronized with the broadcast data in the DMB terminal 170 to display the guide information such as the outline of the corresponding object according to the key input so that the user can select the desired object through the key input while watching the broadcast.

If the PPL information downloader 215 provides URL information allowing the PPL information searcher 213 to download the PPL information searched by the DMB terminal 170, the PMB information downloader 213 may access the corresponding URL. Download the PPL information.

As mentioned above, since the PPL information download method includes a full download method and a split download method, the PPL information download unit 215 may include a full download method that is a download method of PPL information in a PPL information request message, and a split download method. When the information about any one of the download method is included, or when the information is stored in the information database 212, in the case of the full download method according to the information to download the entire PPL information at once, and in the case of the split download method The PPL information to be downloaded is divided into appropriate sizes, and each split PPL information is sequentially downloaded.

Next, the GUIP information providing unit 216 is a configuration for service to the DMB terminal 170 having a touch screen, and the channel of the broadcast currently being viewed from the DMB terminal 170 as the user selects a specific point of the broadcast screen. When a GUIP information request message including information, program information, coordinate information of a selected point, and PTS information is received, the point selected by the user with reference to the PPL information database 214 based on the information included in the GUIP information request message. The GUIP information response message including the type of additional information that can be provided for the object and the content URL information for downloading each additional information content is transmitted to the DMB terminal 170.

In this case, the PPL information database 214 should further store the coordinate information of the object displayed through the broadcast screen, and exactly the information on the range of coordinates for the screen area occupied by the object should be stored.

Meanwhile, in the case of the PPL information downloader 215, the PPL information for the broadcast after the time of the user's request for the service is given down. Since the corresponding PPL information includes guide information for selecting an object, the DMB terminal 170 After downloading the PPL information, the user can identify the object selected by the user and receive the corresponding additional information content.

On the other hand, the GUIP information providing unit 216 receives the coordinate information selected by the user in real time, identifies the object corresponding to the coordinates and gives only relevant information.

Meanwhile, in FIG. 2, when the PMB information is downloaded to identify the object in the DMB terminal 170 and when the coordinates are transmitted in the DMB terminal 170, the service providing server 120 identifies the object and provides only GUIP information. Although the service providing server 120 is configured to perform both cases, the GUIP information providing unit 216 may be omitted if only the former service is provided, and the PPL information retrieval unit may be omitted if only the latter service is provided. 213 and the PPL information downloader 215 may be omitted.

3 is a configuration diagram schematically showing an internal configuration of a synchronization server according to an embodiment of the present invention.

Referring to FIG. 3, the synchronization server 120 according to the present invention includes a communication unit 310, a synchronization information detector 320, a controller 330, and a synchronization information storage unit 340.

The communication unit 310 transmits or receives information or data, and receives a synchronization information request message from the service providing server 120 providing additional information to the DMB terminal 170, and transmits the synchronization information from the service providing server 120 to the synchronization information requesting information. Download the scene change file for detection.

The synchronization information detector 320 detects synchronization information from the scene change file through a scene change comparison algorithm. That is, the synchronization information detector 320 detects a program start PTS for broadcast content from the scene change file.

The controller 330 controls the detected synchronization information to be transmitted to the service providing server 120 through the communication unit 310.

That is, the control unit 330 includes information about a specific broadcast program from the service providing server 120 through the communication unit 310, FTP information for delivering a scene change file, and information about a scene change file ( Receive a PTS (Presentation Time Stamp) detection request message.

At this time, the information on a specific broadcast program includes a channel number, a program ID, a program name, a broadcast start time, and the FTP information includes an FTP address, a directory, an ID, a password, and information about a scene change file. Includes the total number of scene change files, the number of scene change files, and the playing time of the scene change files.

In addition, the controller 330 downloads the scene change file from the service providing server 120 by FTP connection with the service providing server 120 through the communication unit 310.

The synchronization information storage unit 340 stores and stores the detected synchronization information.

4 is a flowchart illustrating a synchronization method between broadcast content and additional information according to an embodiment.

Referring to FIG. 4, the service providing server 120 according to the present invention, according to a broadcast program related to broadcast content provided by the broadcast center 110, in order to secure synchronization information on a corresponding broadcast program in advance, a specific broadcast program. The synchronization information request message SYNC_BMP_REQ is transmitted to the synchronization server 130 (S402).

In this case, the synchronization information request message is a PTS (Presentation Time Stamp) detection request message including information on a specific broadcast program, FTP information for delivering a scene change file, and information about a scene change file.

Information about a specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time.FTP information includes an FTP address, a directory, an ID, a password, and information about a scene change file. The total number of scene change files, the number of the scene change files, and the playing time of the scene change files.

Here, the PTS detection request message has the parameters shown in Table 1 below.

Parameter (ID) Length Value PROG_CH_NO (1) One Channel number (0 ~ 255) PROG_ID (2) 4 Show ID PROG_NAME (3) N (Variable) Program name PROG_DATE (4) 8 Program start date (YYYYMMDD) PROG_TIME (5) 6 Program start time (HHMMSS) DIRECTORY (21) N Cutaway file location (FTP address, directory) USER (22) N FTP connection ID PASSWORD (23) N FTP connection password SYNC_INFO_COUNT (31) N Total number of transition files SYNC_BMP_NUM (32) One Cutaway file number SYNC_TIME (33) 8 Cutback file duration (msec)

PROG_CH_NO is a parameter indicating a channel number indicating how many times a program to be broadcasted is broadcasted, PROG_ID is a parameter indicating a unique ID of a program to be broadcasted, and PROG_NAME is a parameter indicating a name of a program to be broadcasted.

In addition, PROG_DATE and PROG_TIME are parameters representing the date and time when the program to be broadcast is broadcast, and DIRECTORY, USER, and PASSWORD are the synchronization server 130 downloading the scene change file from the service providing server 120 to the FTP connection. Information parameter for That is, DIRECTORY indicates the location of the scene change file, USER indicates the ID of the FTP accessor, and PASSWORD is a parameter indicating the FTP access password.

SYNC_INFO_COUNT represents the number of scene change files, SYNC_BMP_NUM is a unique number assigned to each scene change file, and SYNC_TIME is a parameter indicating how long each scene change file is after the program start time.

Subsequently, the synchronization server 130 performs an FTP connection to the service providing server 120 based on the FTP information in the synchronization information request message received from the service providing server 120 (S404).

That is, the sync server 130 performs FTP access to the service providing server 120 based on the FTP address, directory, ID, and password received from the service providing server 120.

Then, the synchronization server 130 downloads the scene change file from the service providing server 120 on the basis of the information on the scene change file in the synchronization information request message received from the service providing server 120 (S406).

That is, the synchronization server 130 transmits to the specific broadcast program through the communication unit 310 based on the total number of the scene change files received from the service providing server 120, the number of the scene change files, and the playing time of the scene change file. Download the transition file for.

Subsequently, the synchronization server 130 transmits a response message SYNC_BMP_ACK of the synchronization information request to the service providing server 120 (S408).

At this time, the response message of the synchronization information request includes a channel number, a program ID, and a program start date, and has parameters as shown in Table 2 below.

Parameter (ID) Length Value PROG_CH_NO (1) One Channel number (0 to 225) PROG_ID (2) 4 Show ID RESULT (41) One 0: OK, 1: NOK

Here, PROG_CH_NO is a parameter indicating a channel number indicating how many times a program to be broadcast is broadcasted, PROG_ID is a parameter indicating a unique ID of a program to be broadcasted, and SESULT is returned to indicate whether each message has been properly processed. The parameter to send in the message.

The synchronization server 130 detects a start PTS which is synchronization information from the scene change file through the scene change comparison algorithm of the synchronization information detector 330 (S410).

The sync server 130 transmits a sync information message SYNC_PTS_UPLOAD_REQ including the start PTS detected through the sync information detector 330 to the service providing server 120 (S412).

At this time, the synchronization information message includes a start PTS, a channel number, a program ID, and a program start date, and has parameters as shown in Table 3 below.

Parameter (ID) Length Value PROG_CH_NO (1) One Channel number (0 to 255) PROG_ID (2) 4 Show ID PROG_DATE (3) 8 Program start date (YYYYMMDD) SYNC_PTS (11) 5 Program start PTS

Here, SYNC_PTS indicates the start PTS of the broadcast program, and the remaining parameters are as described above.

The service providing server 120 receiving the starting PTS from the synchronization server 130 stores and stores the received starting PTS in the information database 212 (S414).

Subsequently, the service providing server 120 transmits a response message SYNC_PTS_UPLOAD_RESULT to the sync server 130 to inform that the start PTS has been received (S416).

At this time, the response message to the synchronization information message has the parameters shown in Table 4 below.

Parameter (ID) Length Value PROG_CH_NO (1) One Channel number (0 to 255) PROG_ID (2) 4 Show ID RESULT (41) One 0: OK, 1: NOK

Thereafter, the service providing server 120 transmits a synchronization information message including the start PTS to the DMB terminal 170 (S418).

Accordingly, the DMB terminal 170 stores the synchronization information message including the start PTS in the memory.

Meanwhile, the service providing server 120 may receive a GUIP request message from the DMB terminal 170 while storing the starting PTS.

That is, when the user viewing the DMB content through the DMB terminal 170 selects the GUIP start key, the DMB terminal 170 transmits the GUIP request message to the service providing server 120, and thus the service providing server. 120 receives a GUIP request message including channel information, broadcast program information, PTS information, and the like.

The service providing server 120 transmits the GUIP request response message to the DMB terminal 170 by including the information included in the received GUIP request message for the confirmation of the DMB terminal 170 or the subscriber.

The DMB terminal 170 transmits a PPL information request message including a channel, a program, and PTS information to the service providing server 120, and accordingly, the service providing server 120 corresponds to the channel, program, and PTS information based on the corresponding channel, program, and PTS information. The user searches for PPL information about a broadcast being watched and includes URL information for downloading the PPL information in the PPL information response message.

Upon receiving the PPL information response message, the DMB terminal 170 receives the PPL information automatically or by receiving a user confirmation and accessing the URL.

The DMB terminal 170 synchronizes the broadcast content and the PPL information based on the start PTS included in the synchronization information message stored in the memory (S420).

Accordingly, the DMB terminal 170 synchronizes the broadcast content with the PPL information to support the user's object selection and additional information selection. When the user selects an outline or a point of a specific object while watching a broadcast, the additional information on the object is displayed. If one of the selected is selected, the user accesses the content URL matched with the additional information and downloads the content desired by the user.

As described above, according to the present invention, when providing broadcast contents from a broadcasting center to a DMB terminal, the service providing server requests the start PTS of the current broadcast to the sync server, and the sync server starts broadcasting based on the scene change comparison algorithm. The mobile communication broadcasting system detects the PTS and delivers it to the service providing server, and transmits the detected starting PTS to the DMB terminal so that the DMB terminal synchronizes broadcast content and PPL information based on the starting PTS. And a synchronization method of broadcast content and additional information.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The present invention can be applied to a DMB terminal that receives and displays terrestrial or satellite DMB broadcasts, and can be applied to a mobile communication terminal that receives and displays broadcast content provided from the Internet through a mobile communication network. The present invention can also be applied to a DMB terminal which synchronizes broadcast content with PPL information.

1 is a configuration diagram schematically showing a configuration of a mobile communication broadcast system to which a synchronization method between broadcast content and additional information is applied according to an embodiment of the present invention;

2 is a configuration diagram schematically showing an internal configuration of a service providing server according to an embodiment of the present invention;

3 is a configuration diagram schematically showing an internal configuration of a synchronization server according to an embodiment of the present invention; and

4 is a flowchart illustrating a synchronization method between broadcast content and additional information according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: mobile communication broadcasting system 110: broadcasting center

120: service providing server 130: synchronous server

140: content server 150: PDSN

160: mobile communication network 170: DMB terminal

211: service control unit 212: information DB

213: PPL information search unit 214: PPL information DB

215: PPL information download unit 216: GUIP information providing unit

217: communication unit 310: communication unit

320: synchronization information detection unit 330: control unit

340: synchronization information storage unit

Claims (34)

A digital broadcast receiving terminal for receiving broadcast content related to digital multimedia and displaying the same in synchronization with PPL (Product Placement) information based on the synchronization information; And a scene change file for the broadcast content. When the sync information is received by sending a sync information request message requesting the sync information for the broadcast content, the sync information is transmitted to the digital broadcast receiving terminal. Giving service providing server; And Receiving the synchronization information request message from the service providing server, downloading a scene change file based on the synchronization information request message from the service providing server, detecting the synchronization information from the scene change file and transmitting the same to the service providing server. A synchronous server for doing it; Mobile communication broadcast system comprising a. The method of claim 1, The sync information request message detects a Presentation Time Stamp (PTS) including information on a specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file. Mobile communication broadcast system, characterized in that the request message. The method of claim 2, The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time. The FTP information includes the address, directory, ID, and password of the FTP, And the information about the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file. The method of claim 1, The sync server downloads the scene change file from the service providing server, and then transmits a response message of the sync information request message indicating that the scene change file has been received and information about a specific broadcast program to the service providing server. Mobile communication broadcasting system characterized in that. The method of claim 1, The synchronization server detects a program start PTS from the scene change file, and transmits the synchronization information including the program start PTS to the service providing server. Broadcasting system. The method of claim 5, The synchronization information includes the program start PTS, a channel number, a program ID, and a program start date. The method of claim 1, And the digital broadcast receiving terminal synchronizes the broadcast content and the PPL information based on a program start PTS included in the synchronization information. A synchronization method of broadcast content and additional information in a system including a service providing server for providing additional information and a synchronization server for providing synchronization information such that the additional information is synchronized with broadcast content, (a) the service providing server transmitting a sync information request message for a specific broadcast program to the sync server; (b) the synchronization server downloading a scene change file from the service providing server based on the synchronization information request message; (c) the sync server detecting the sync information from the scene change file and transmitting the sync information to the service providing server; (d) the service providing server transmitting the synchronization information to a digital broadcast receiving terminal; And (e) synchronizing and displaying the broadcast content and the additional information based on the synchronization information in the digital broadcast receiving terminal; Method of synchronizing the broadcast content and the additional information comprising a. The method of claim 8, In the step (a), the sync information request message may include information about the specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file ( PTS: Presentation Time Stamp (PTS) detection request message, characterized in that the synchronization method and the broadcast content. The method of claim 9, The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time. The FTP information includes the address, directory, ID, and password of the FTP, And the information about the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file. The method of claim 8, In the step (b), after the sync server downloads the scene change file, the service providing server receives a response message of the sync information request message indicating that the scene broadcast file has received information about the specific broadcast program. And synchronizing the broadcast content with the additional information. The method of claim 11, The response message of the synchronization information request message includes a channel number, a program ID, and a program start date. The method of claim 8, In the step (c), the synchronization server detects a program start PTS from the scene change file, and transmits the synchronization information including the program start PTS to the service providing server. A synchronization method of broadcast content and additional information, characterized in that. The method of claim 13, The synchronization information includes the program start PTS, a channel number, a program ID, and a program start date. The method of claim 8, In the step (e), the digital broadcast receiving terminal synchronizes the broadcast content with the additional information based on the synchronization information including the program start PTS. Motive method. A communication unit for communicating with a service providing server that provides additional information to a digital broadcast receiving terminal that receives and displays broadcast contents related to digital multimedia; A synchronization information detector for detecting synchronization information from the scene change file downloaded from the service providing server; And A control unit for detecting the synchronization information through the synchronization information detection unit and controlling the detected synchronization information to be transmitted to the service providing server through the communication unit when receiving a synchronization information request message from the service providing server; Synchronous server comprising a. The method of claim 16, And the synchronization information detector detects a program start PTS for the broadcast content from the scene change file. The method of claim 16, The sync information request message is a PTS detection request message including information on a specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file. Featured synchronous server. The method of claim 18, The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time. The FTP information includes the address, directory, ID, and password of the FTP, And the information about the scene change file includes the total number of the scene change files, the number of the scene change files, and the playing time of the scene change file. The method of claim 16, And the control unit downloads the scene change file from the service providing server through an FTP connection with the service providing server through the communication unit. A synchronization method of broadcast content and additional information of a synchronization server communicating with a service providing server providing additional information, (a) receiving a synchronization information request message for a specific broadcast program from the service providing server; (b) downloading a scene change file from the service providing server based on the synchronization information request message; And (c) detecting the sync information from the scene change file and transmitting the sync information to the service providing server; Method of synchronizing the broadcast content of the synchronization server and the additional information comprising a. The method of claim 21, In the step (a), the sync information request message may include information about the specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file ( And a PTS (Presentation Time Stamp) detection request message. The method of claim 22, The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time. The FTP information includes the address, directory, ID, and password of the FTP, And the information about the scene change file includes the total number of the scene change file, the number of the scene change file, and the playing time of the scene change file. The method of claim 21, In the step (b), after the scene change file is downloaded, information on the specific broadcast program and a response message of the synchronization information request message indicating that the scene change file has been received are transmitted to the service providing server. A synchronization method of broadcast content and additional information of a synchronization server. The method of claim 24, The response message of the synchronization information request message includes a channel number, a program ID, and a program start date. The method of claim 21, In the step (c), the program start PTS is detected from the scene change file, and the synchronization information including the program start PTS is transmitted to the service providing server. A synchronization method of broadcast content and additional information of a synchronization server. The method of claim 26, The synchronization information includes the program start PTS, a channel number, a program ID, and a program start date, wherein the broadcast content of the synchronization server and the additional information are synchronized. (a) receiving a synchronization information request message for a specific broadcast program from a service providing server; (b) downloading a scene change file from the service providing server based on the synchronization information request message; And (c) detecting the sync information from the scene change file and transmitting the sync information to the service providing server; A computer-readable recording medium having recorded thereon a program for processing. 29. The method of claim 28, In the step (a), the sync information request message may include information about the specific broadcast program, FTP information for delivering the scene change file, and information about the scene change file ( PTS (Presentation Time Stamp) A computer-readable recording medium having a program recorded thereon, characterized in that the detection request message. 30. The method of claim 29, The information on the specific broadcast program includes a channel number, a program ID, a program name, and a broadcast start time. The FTP information includes the address, directory, ID, and password of the FTP, And the information about the scene change file includes a total number of the scene change file, a number of the scene change file, and a reproduction time of the scene change file. 29. The method of claim 28, In the step (b), after the scene change file is downloaded, information on the specific broadcast program and a response message of the synchronization information request message indicating that the scene change file has been received are transmitted to the service providing server. A computer-readable recording medium having a program recorded thereon. The method of claim 31, wherein The response message of the synchronization information request message includes a channel number, a program ID, and a program start date. 29. The method of claim 28, In the step (c), the program start PTS is detected from the scene change file, and the synchronization information including the program start PTS is transmitted to the service providing server. A computer-readable recording medium on which a program is recorded. The method of claim 33, wherein The synchronization information includes a program start PTS, a channel number, a program ID, and a program start date.

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