KR100987001B1 - Apparatus of providing broadcast information using graphic interface and dmb terminal, and method of providing broadcast information thereof - Google Patents

Abstract

The present invention relates to a broadcasting information providing apparatus and a method for providing the same, and more particularly, to a broadcasting information providing apparatus for visually displaying channel information that can be received by a digital multimedia broadcasting (DMB) terminal, and a DMB terminal having the same; The broadcast information providing method.

 In accordance with another aspect of the present invention, a broadcast information providing apparatus includes: a baseband processor configured to receive frame data including at least one video information and at least one audio information; A broadcast information extracting unit extracting list information of a broadcast serviced by the received frame data and image information for each list of the broadcast; And a database storing the extracted broadcast list information and the extracted broadcast-specific image information.

DMB, EPG, Terminal, Broadcast Information, Video Display

Description

A broadcast information providing apparatus for visually displaying broadcast channel information, a DM terminal equipped with the same, a broadcast information providing method using the same, and the like.

The present invention relates to a broadcasting information providing apparatus and a method for providing the same, and more particularly, to a broadcasting information providing apparatus for visually displaying channel information that can be received by a digital multimedia broadcasting (DMB) terminal, and a DMB terminal having the same; The broadcast information providing method.

The mobile broadcasting service means a technology that can reliably transmit and receive various multimedia services such as music, news, sports, drama, and movies with good quality while moving using digital broadcasting technology. In particular, DMB (Digital Multimedia Broadcasting) is a field that is widely used as a mobile broadcasting service that can provide a variety of additional data services such as CD-quality high-quality radio service, traffic and securities.

One of the advantages of the digital broadcasting service is that channel efficiency is better than that of the analog broadcasting service. That is, in analog broadcasting, only one broadcast program can be transmitted on one physical frequency, but in digital broadcasting, several broadcast programs can be delivered on one physical frequency. As a result, digital broadcast services can provide a significant number of broadcast programs compared to physical frequency numbers.

As a result, users can receive more broadcast services, and therefore, there is a need for a technology of providing broadcast channel information so that a user can easily select a desired program.

However, in the conventional mobile broadcasting service terminal, especially Korean DMB terminal using T-DMB (Terrestrial Digital Multimedai Broadcasting), there is a problem that can not provide such broadcast channel information visually. This is because T-DMB was developed based on Digital Audio Broadcasting (DAB) technology, which enabled only audio service, and was developed without consideration for an electronic program guide (EPG).

That is, in the case of the conventional DMB service, it is not possible to obtain information on the broadcast list while watching a broadcast, so that the information on the broadcast can be obtained only by changing the channel one by one, or by watching new broadcast contents.

For this reason, the user may not know what kind of program is being broadcasted and what the title is, and what screen is currently being broadcast. Also, if the broadcast list of another broadcast is changed while the user is watching the broadcast, the changed content is changed. There is a problem that cannot be confirmed.

In addition, conventionally, even when configuring information on a broadcast list, since the text is based only on text (for example, broadcasting station information, etc.), it is difficult for a user to substantially recognize the content of the broadcast. In other words, there is an inconvenience of actually having to watch a broadcast one by one in order to confirm which broadcast is actually served.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a broadcast information providing apparatus and method for constructing and providing information on a broadcast list that is being broadcast.

Another object of the present invention is to provide a broadcast information providing apparatus and method for visually configuring and displaying information in a broadcast list.

In order to solve the above problems, a broadcast information providing apparatus according to an aspect of the present invention, a baseband processor for receiving frame data including at least one video information and at least one audio information; A broadcast information extracting unit extracting list information of a broadcast serviced by the received frame data and image information for each list of the broadcast; And a database storing the extracted broadcast list information and the extracted broadcast-specific image information.

According to another aspect of the present invention, a DMB terminal includes a broadcast signal extractor configured to extract broadcast signals from frame data received from a first RF tuner to configure broadcast information, and an application for serving broadcasts based on the configured broadcast information. A DMB terminal comprising: a second RF tuner for receiving frame data; A broadcast information extraction unit for extracting list information of broadcasts that can be serviced through the frame data and image information for each broadcast list, from the frame data received by the second RF tuner; A database for storing the extracted broadcast list information and the image information for each of the extracted broadcast list; And a controller for controlling the second RF tuner, the broadcast information extracting unit, and the database, and controlling the application to serve the broadcast list information and the video information for each broadcast list.

According to another aspect of the present invention, a DMB terminal includes a baseband processor that receives frame data, a broadcast signal extractor configured to extract broadcast signals from the frame data, and configures broadcast information, and provides broadcast services based on the configured broadcast information. A DMB terminal including an application, the DMB terminal comprising: a broadcast information extracting unit for extracting, from the received frame data, list information of a broadcast serviceable through the frame data and image information for each broadcast list; A database for storing the extracted broadcast list information and the image information for each of the extracted broadcast list; And a control unit controlling the broadcast information extracting unit and the database, and controlling the application to serve the broadcast list information and the video information for each broadcast list.

According to another aspect of the present invention, a method of providing broadcast information in a DMB terminal includes: configuring broadcast list information by using service information of received frame data; Constructing image information for each broadcast list of the broadcast list information by using the service information and multiplexing setting information of the received frame data; And displaying the broadcast list information and the image information for each broadcast list.

Since the present invention can provide the information on the broadcast list including visual information, there is an effect of providing the broadcast information to the user, such as an EPG (Electronic Program Guide).

In addition, by configuring the broadcast information including the image currently being broadcast, it is possible to provide the user with an image of the broadcast being service, the user can intuitively obtain the information about the broadcast.

In addition, the present invention has the effect of additionally using a separate RF tuner, to store and visually display the real-time broadcast screen for all other broadcast channels that are being serviced, independent of the channel currently being viewed.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a structural diagram of a transmission frame used in a terrestrial DMB system.

The DMB broadcast signal is transmitted in units of frames, and one frame may include a plurality of video and audio broadcast services. The structure of one transmission frame includes a synchronization channel, a fast information channel (FIC) 10, and a main service channel (MSC) 20 for channel synchronization. ) May be included.

Video information and audio information about a broadcast service to be serviced are transmitted to a user through a main service channel (MSC) 20. Such video information and audio information may be configured in a transport stream (TS) packet and included in the main service channel 20.

Multiplex configuration information (MCI) 11 and service information (SI) 12 may be received through a fast information channel (FIC) 10.

The multiplexing setting information 11 indicates how the actual broadcast program is configured in the main service channel 20. That is, since it includes multiplexing information on the data of the main service channel 20, the broadcast service can be performed by demultiplexing the data of the main service channel 20 received based on the multiplexing setting information 11. have.

Through the service information 12, the name of the broadcast program provided in the broadcast can be known. That is, text information on the name of the broadcast program can be obtained.

2 is a block diagram of a broadcast information providing apparatus according to the present invention.

As shown in FIG. 2, the apparatus for providing broadcast information according to the present invention may include a baseband processor 100, a broadcast information extractor 200, and a database 300.

The baseband processor 100 may include an RF tuner that receives the frame data shown in FIG. 3.

The broadcast information extracting unit 200 receives the frame data received by the baseband processor 100 and extracts list information on a list of broadcasts currently being serviced and image information on each broadcast list.

In more detail, the broadcast information extractor 200 may include a list information extractor 210 constituting broadcast list information and a video information extractor 220 constituting video information with respect to the broadcast list. have.

The list information extracting unit 210 configures broadcast list information by using the service information 12 of the frame high speed information channel 10 shown in FIG. 3.

The image information extracting unit 220 configures image information by extracting a still image from TS packet data of the main service channel 20 using the multiplexing setting information 11 and the service information 312 of the high speed information channel 10. do.

3 is a configuration diagram showing a first embodiment of a DMB terminal according to the present invention.

As shown in FIG. 3, the DMB terminal according to the present invention includes a baseband processor 100, a broadcast information extractor 200, a database 300, and a controller 400 for providing broadcast information. The broadcast signal extractor 500 and the application 600 for providing the DMB service may be included.

The baseband processor 100 receives frame data for mobile digital broadcasting from a base station. The baseband processor 100 is preferably composed of a first RF tuner 110 for configuring a DMB broadcast and serving a user, and a second RF tuner 120 for configuring broadcast information. This means that the broadcast currently viewed by the user is serviced by the first RF tuner 110, and the second RF is configured to configure broadcast information for all broadcasts serviced by the base station independently of the broadcast currently being viewed by the user. This is to use the tuner 120.

The broadcast signal extractor 500 receives frame data from the baseband processor 100 to extract broadcast signals to configure broadcast information. The configured broadcast information may be delivered to the application 600 to provide a service to the user.

The broadcast information extracting unit 200 receives frame data from the baseband processor 100 (more preferably, from the second RF tuner 120) and uses the broadcast information (broadcast list information and broadcast list-specific information). Including image information) can be extracted.

Since the detailed operation description of the broadcast information extraction unit 200 is the same as that of FIG. 2 described above, the detailed description thereof will be omitted.

The database 300 stores the broadcast list information configured by the broadcast information extractor 200 and the video information for each broadcast list.

The control unit 400 controls the second RF tuner 120, the broadcast information extracting unit 200, and the database 300 as a whole, and controls the application 600 to service the broadcast list information and the image information for each broadcast list to the user. do.

Referring to the controller 400 in more detail, the broadcast information extractor 200 may be controlled to generate or update broadcast information. That is, the controller 4000 may control the broadcast information extractor 200 to generate or update broadcast information not only when the user searches for the broadcast channel but also when the user requests a re-search for the broadcast channel.

The controller 400 may control the database 300 to store the generated or updated broadcast information, and the controller 400 may control the application 600 to display the broadcast information stored in the database 300. .

In case of the existing DMB broadcasting receiver, since there is no EPG, only the list of broadcasts provided by the frequency searched by region can be known, and the actual broadcast contents cannot be provided to the user. It is impossible to update continuously.

In the embodiment according to FIG. 3, a second RF tuner 120 is further provided to solve this problem. That is, while there is no request for displaying the broadcast list, the visual broadcasting screen of the program currently being broadcast is updated and updated for the entire broadcast list stored in the database 300 using the second RF tuner.

According to the second embodiment of the DMB terminal according to the present invention, the baseband processing unit 100 does not have a plurality of RF tuners, but has a single RF tuner and distributes the received frames to extract a broadcast list. can do.

That is, in the case of the first embodiment according to FIG. 3, the image information may be updated even when the user is watching the image using the second RF tuner 120, but in the case of the second embodiment, the baseband processor Since the 100 has one RF tuner, broadcast information may be generated or updated only by an update request or a broadcast search request of the user.

4 is a flowchart illustrating a method of configuring broadcast information according to the present invention.

The broadcast information extracting unit 200 extracts a broadcast title (service ID) from the service information 12 of the frame data (S401). The broadcast information extracting unit 200 may configure broadcast list information based on the extracted broadcast title.

Thereafter, the broadcast information extracting unit 200 extracts TS (Transport Stream) packet data corresponding to the service ID from the main service channel 20 using the service information 12 and the multiplexing setting information 11 (S402). ). This is to extract only the video information corresponding to the service ID because the TS packet data includes the video information and the audio information of the broadcasting service which is providing the service, and may include a plurality of video and audio information due to the characteristics of the digital broadcasting. .

Thereafter, the H.264 signal is extracted from the extracted TS packet data (S403). This is because video service is multiplexed in TS packet in Mpeg 4 part10 (H.264) format in terrestrial DMB service. That is, the video signal can be extracted by demultiplexing the extracted TS packet using the multiplexing setting information 11.

The H.264 video signal is composed of an Instantaneous Decoding Refresh (IDR) picture having still picture information and a Non-IDR picture having a change value of the still picture, and among them, image information is formed using an IDR picture. That is, the IDR picture is extracted from the extracted video signal (H.264 signal) to form video information (S404), and the extracted IDR picture (video information) and the service ID (list information) of the broadcast are stored in a database. (S405).

5 is a flowchart illustrating a broadcast information providing method in a DMB terminal according to the present invention.

Domestic DMB broadcasts use VHF No. 8 (180MHz ~ 186MHz) and channel No. 12 (204 ~ 210) MHz in the metropolitan area, and have up to six physical channels nationwide.

Due to the existing regionalization of analog broadcasting, DMB broadcasting does not form a single frequency network, but uses different physical frequency bands for each region. There is a need to modify the broadcast list. Therefore, the following describes in detail the method of configuration and modification or update of the broadcast list.

As shown in FIG. 5, the controller 400 checks whether broadcast information exists (S501). This can be confirmed by checking whether broadcast information is stored in the database 300.

The controller 400 controls the broadcast information extractor 200 to configure broadcast information when there is no current broadcast information. Accordingly, the broadcast information extracting unit 200 starts searching for a broadcast channel (S502). Thereafter, broadcast list information (service ID) is extracted from the searched channel (S503), and as described above with reference to FIG. 4, the video information of the broadcast is extracted and the extracted video information and broadcast list information are stored in the database 300. Save (S504, S505).

Since steps S503 to S505 store image information and list information with respect to one broadcast list, a search for all broadcast channels is performed by configuring broadcast information (list information and broadcast information) for all broadcast services that a terminal can receive. Each step is repeated until completion (S506).

Thereafter, if a user requests a display for a broadcast list (S507), the broadcast list stored in the database 300 and video information for each broadcast list are displayed on the screen (S508).

If the user's request is a full re-search request for the broadcast channel (S509), steps S502 to S506 are repeated to update the broadcast information and store it in the database 300.

Even if there is no re-search request from the user (S509), the video information may be redefined based on the current screen for each broadcast list according to the broadcast list information previously stored in the database 300 to update the video information. (S510). That is, while there is no request for displaying the broadcast list, the visual broadcast screen of the program currently being broadcast is updated and updated 510 for the entire broadcast list stored in the database 300 using the second RF tuner.

The reconstructed image information may be updated in the database 300 (S511).

6 is a schematic diagram showing a first embodiment for displaying broadcast information, and FIG. 7 is a schematic diagram showing a second embodiment for displaying broadcast information.

A screen for displaying broadcast information will be described with reference to FIGS. 6 to 7.

FIG. 6 is an embodiment in which broadcast information is displayed in a list format, and is presently available, that is, broadcast list information (eg, mYTN, my mbc, SBS uTV, KBS HEART, etc.) and images of respective broadcast lists. Display information as a list of lines.

FIG. 7 is an embodiment in which broadcast information is displayed in a tiled manner, and broadcast list information (eg, mYTN, my mbc, SBS uTV, KBS HEART, etc.) and video information of each broadcast list can be displayed in a tiled manner. have.

This broadcasting list displays not only the image currently being broadcast (eg, mYTN), but also a list of other broadcastable broadcasts (eg, my mbc, SBS uTV, KBS HEART, etc.) and the video at the same time, thereby receiving DMB without EPG. Even in the environment, the user can immediately check each broadcasting content through the video.

As mentioned above, although this invention was demonstrated in detail with reference to attached drawing, this is only an illustration, It is clear that various deformation | transformation and a change are possible within the scope of the technical idea of this invention. Therefore, the protection scope of the present invention should not be limited to the above-described embodiment, but should be determined to include the scope according to the description of the following claims and their equivalents.

1 is a structural diagram of a transmission frame used in a terrestrial DMB system.

2 is a block diagram of a broadcast information providing apparatus according to the present invention.

3 is a block diagram showing an embodiment of a DMB terminal according to the present invention;

4 is a flowchart of a method of constructing broadcast information according to the present invention;

5 is a flowchart illustrating a method for providing broadcast information in a DMB terminal according to the present invention.

6 is a schematic diagram showing a first embodiment for displaying broadcast information;

Fig. 7 is a schematic diagram showing a second embodiment of displaying broadcast information.

Claims (19)

Transport stream (TS) packet data including at least one video information and at least one audio information received through a main service channel, and broadcast service information and multiplexing configuration information of the main service channel received through a fast information channel. A baseband processor for receiving frame data; A broadcast information extracting unit extracting list information of a broadcast serviced by the received frame data and image information for each list of the broadcast; And A database for storing the extracted broadcast list information and the extracted broadcast list image information; Broadcast information providing apparatus comprising a. delete The method of claim 1, wherein the broadcast information extraction unit, A list information extracting unit constituting the broadcast list information using the service information; And An image information extracting unit configured to extract still image information from the TS packet data to form the image information by using the service information and the multiplexing setting information; Broadcast information providing apparatus comprising a. A DMB terminal comprising a broadcast signal extractor configured to extract broadcast signals from frame data received from a first RF tuner to configure broadcast information, and an application for serving a broadcast based on the configured broadcast information. Transport stream (TS) packet data including at least one video information and at least one audio information received through a main service channel, and broadcast service information and multiplexing configuration information of the main service channel received through a fast information channel. A second RF tuner for receiving frame data; A broadcast information extraction unit for extracting list information of broadcasts that can be serviced through the frame data and image information for each broadcast list, from the frame data received by the second RF tuner; A database for storing the extracted broadcast list information and the image information for each of the extracted broadcast list; And A control unit controlling the second RF tuner, the broadcast information extracting unit, and the database, and controlling the application to serve the broadcast list information and the image information for each broadcast list; DMB terminal comprising a. The method of claim 4, wherein the control unit, Controlling the broadcast information extracting unit and the second RF tuner to update the broadcast list information stored in the database to the video information for each broadcast list with current video information; DMB terminal. The method of claim 4, wherein the control unit, When the broadcast signal extractor searches for a broadcast channel or when a user requests to search for a broadcast channel again, the broadcast information extractor and the second RF tuner are controlled to extract the broadcast list information and the video information for each broadcast list. To do DMB terminal. The method of claim 4, wherein the broadcast information extraction unit, A list information extracting unit configured to configure the broadcast list information using broadcast service information included in frame data received by the second RF tuner; And An image information extracting unit configured to construct image information for each broadcast list using TS (Transport Strem) packet data included in the frame data received by the second RF tuner; That includes a DMB terminal. The method of claim 7, wherein the image information extracting unit, Demultiplexing the TS (Transport Strem) packet data using the multiplexing configuration information included in the frame data received by the second RF tuner, and as a result, the broadcasting based on the extracted still picture information and the broadcasting service information Comprising image information for each list DMB terminal. The method of claim 8, wherein the control unit, Controlling the application to simultaneously display at least one broadcast list information stored in the database and video information for each broadcast list corresponding thereto on one screen; DMB terminal. A DMB terminal comprising a baseband processor for receiving frame data, a broadcast signal extractor for extracting a broadcast signal from the frame data to configure broadcast information, and an application for serving a broadcast based on the configured broadcast information. The frame data received by the baseband processor is transport stream (TS) packet data including at least one video information and at least one audio information received through a main service channel and the main service received through a fast information channel. Including broadcast service information and multiplexing setting information of a channel, A broadcast information extracting unit extracting list information of broadcasts that can be serviced through the frame data and image information for each broadcast list from the received frame data; A database for storing the extracted broadcast list information and the image information for each of the extracted broadcast list; And A control unit controlling the broadcast information extracting unit and the database and controlling the application to serve the broadcast list information and the image information for each broadcast list; DMB terminal comprising a. The method of claim 10, wherein the control unit, Controlling the broadcast information extraction unit to extract the broadcast list information and the video information for each broadcast list when the broadcast signal extractor searches for a broadcast channel or when a user requests to search for a broadcast channel again; DMB terminal. The method of claim 10, wherein the control unit, Controlling the application to display at least one broadcast list information stored in the database and video information for each broadcast list on one screen; DMB terminal. The method of claim 10, wherein the broadcast information extraction unit, A list information extracting unit configured to construct the broadcast list information by using the broadcast service information included in the frame data; And An image information extracting unit configured to construct image information for each broadcast list by using TS (Transport Strem) packet data included in the frame data; That includes a DMB terminal. The method of claim 13, wherein the image information extracting unit, Demultiplexing the TS packet data using the multiplexing setting information included in the frame data, and using the extracted still picture information and the broadcast service information to construct image information for each broadcasting list DMB terminal. Interpreting the received frame data and extracting service information included in the fast information channel of the frame data; Constructing broadcast list information by using the extracted service information; Constructing image information for each broadcast list of the broadcast list information by using the service information and multiplexing setting information of the received frame data; And Displaying the broadcast list information and the image information for each broadcast list; Broadcast information providing method in a DMB terminal comprising a. delete The method of claim 15, wherein the configuring of the image information comprises: Analyzing the received frame data to extract service information and multiplexing setting information included in the fast information channel of the frame data; Extracting TS (Transport Strem) packet data corresponding to the service information from the main service channel of the received frame data using the multiplexing setting information; Extracting an H.264 signal from the extracted TS (Transport Strem) packet data, searching for an IDR picture of the extracted H.264 signal, and configuring image information for each broadcast list; Broadcast information providing method in a DMB terminal comprising a. The method of claim 15, And storing the broadcast list information and the video information for each broadcast list. The displaying of the broadcast list information and the video information for each broadcast list may include displaying the broadcast list information and the video information for each broadcast list stored through the storing step. Broadcast information providing method in a DMB terminal. The method of claim 15, Reconstructing and updating the broadcast list information and video information for each broadcast list, and storing the updated broadcast list information and video information for each broadcast list; Broadcast information providing method in a DMB terminal that further comprises.

Images