KR20100133822A - Method and apparatus for receiving a broadcasting signal - Google Patents

Abstract

PURPOSE: A broadcasting receiving method for providing a data broadcasting service in the limited space and an apparatus thereof are provided to facilitate a banner used in advertisement through a data broadcasting service by configuring a banner image. CONSTITUTION: A signal of a broadcast channel which a user selects is received(400). An application data for a data broadcasting service is received by using data-only channel(410). A banner descriptive data obtains by using the received application data. A banner image is composed according to banner attribute information(420). The composed banner image of the received broadcast channel are synthesized(430). The banner descriptive data is registered in the banner manager.

Description

Method and apparatus for receiving broadcast

The present invention relates to a method and apparatus for receiving a broadcast signal, and more particularly, to a broadcast system for providing a data broadcast service in a limited space such as a hotel.

In general, the broadcast reception device receives a data stream including a broadcast signal, extracts a video and audio data stream corresponding to a channel desired by a user using service information included in the received data stream, and outputs the stream to the display device.

Recently, data broadcasting has been provided for providing various information to users by adding additional data to digital broadcasting. For example, through data broadcasting, program information, subtitle information, weather information, news information, shopping information, and the like of a broadcasting channel may be provided to a user.

An object of the present invention is to provide a broadcast receiving method and apparatus capable of efficiently providing a specialized data broadcasting service in a limited space such as a hotel.

In accordance with another aspect of the present invention, a broadcast receiving method includes: receiving an image signal of a broadcast channel selected by a user; Receiving application data for a data broadcast service using a data dedicated channel; Constructing a banner image using the received application; And synthesizing the image of the received broadcast channel with the configured banner image.

In accordance with another aspect of the present invention, a broadcast receiving apparatus includes: a first tuner which performs the broadcast receiving method and receives a signal of a broadcast channel selected by the user among broadcast signals; And a second tuner which extracts a signal of the data dedicated channel from the broadcast signal and receives application data for a data broadcast service.

According to an exemplary embodiment of the present invention, by receiving application data for data broadcasting through an independent data dedicated channel from a broadcasting channel, it is possible to provide a data broadcasting service to a user without switching the broadcasting channel to be currently watched. In addition, by configuring the banner image using the received application data, it is possible to easily implement a banner used for advertising, etc. through a data broadcasting service provided in a limited space such as a hotel.

Hereinafter, a broadcast receiving method and apparatus according to an embodiment of the present invention and a broadcast system using the same will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a configuration of a broadcast system according to an embodiment of the present invention. The illustrated broadcast system includes a head end device 100, a broadcast receiving device 200, and a display device 300. It may include.

Referring to FIG. 1, the head end device 100 receives a broadcast signal from an external source and transmits it to the broadcast receiving device 200, and the broadcast receiving device 200 corresponds to a channel selected by a user from among the received broadcast signals. The video signal (generally including an audio signal) may be extracted and processed and then output to the display apparatus 300.

More specifically, the head and device 100 may include a broadcast transmitting device 110 and a data server 120. The broadcast transmitting device 110 provides a broadcast signal received from the outside through a satellite or a cable to the broadcast receiving device 200, and the data server 120 provides application data for a data broadcast service to the broadcast receiving device 200. Can be provided as

For example, the broadcast transmission device 110 includes a plurality of broadcast signal receivers to receive various contents from a plurality of broadcasters using a wired or wireless communication network through a terrestrial wave or satellite antenna, a cable, and the like. The content may be allocated to a plurality of broadcast channels and transmitted to the broadcast reception device 200.

Meanwhile, the broadcast reception device 200 may receive an image signal of a broadcast channel selected by a user among broadcast signals transmitted from the broadcast transmission device 110, and receive application data for data broadcast transmitted from the data server 120. Can be.

In addition, the broadcast receiving device 200 may convert the image signal of the received broadcast channel and the application data for data broadcasting into a form that can be output from the display device 300 and then output the image signal to the display device 200.

The display apparatus 200 may display an image of the broadcast channel using an image signal input from the broadcast receiving apparatus 200, and may provide a data broadcast service according to a user's request.

The broadcast receiving device 200 receives a broadcast signal using a wired or wireless network, converts the received broadcast signal into a form that can be output from the display device, and then outputs the set-top box to the display device 300. , STB).

However, the broadcast receiving device 200 according to the present invention is not limited to the set top box STB, and any type of device capable of receiving broadcast signals transmitted from the outside and outputting them to the display device 300 connected by wire or wireless connection. It may include.

The display apparatus 300 displays an image using a signal input from the broadcast receiving apparatus 200. For example, the display apparatus 300 displays an image, for example, a liquid crystal display (LCD), a plasma display panel (PDP), an electro luminescent display (ELD), or a VFD ( Images can be displayed using various display methods such as Vacuum Fluorescent Display.

Meanwhile, the broadcast receiving device 200 may be connected to the display device 300 through a high definition multimedia interface (HDMI), a digital visual interface (DVI) or a D-Sub cable. However, the connection between the broadcast receiving device 200 and the display device 300 is not limited to the above-described method, and may be connected using various communication cables. In addition, the broadcast receiving device 200 and the display device 300 are not limited to being connected by wire, and may be connected through a wireless network using short-range wireless communication such as Zigbee, Bluetooth, or Wlan. .

According to the present invention, it is preferable that the image of the broadcasting channel selected by the user and the image of the data broadcasting service are simultaneously displayed on one screen of the display apparatus 300. For this purpose, the broadcast receiving apparatus 200 is a broadcast transmitting apparatus 110. The video signal received from the broadcasting channel and the application data received from the data server 120 are synthesized and processed to be displayed on one screen, and then output to the display apparatus 300.

In addition, the application data received from the data server 120 may be for displaying a banner image used for an advertisement on the display apparatus 300. For example, text may be displayed on the display apparatus 300. It may be a Java Xlet application for displaying a banner advertisement based on the screen of the broadcast channel.

On the other hand, in order for the broadcast receiving device 200 to receive application data for the data broadcasting service from the data server 120 without switching the broadcasting channel currently being watched, the application data is a data dedicated channel independent of the broadcasting channel. It is preferable to be transmitted to the broadcast receiving device 200 through.

That is, the broadcast transmission device 110 allocates a broadcast signal received from the outside to a plurality of preset broadcast channels and transmits the same to the broadcast reception device 120, and the data server 120 is independent of the broadcast channels. By transmitting the application data to the broadcast receiving device 120 through a data dedicated channel configured as an in-channel, the broadcast receiving device 110 simultaneously transmits an image signal of a broadcasting channel that the user is currently watching and application data for the data broadcasting. Can be received.

Accordingly, the user requests a data broadcasting service while watching the selected broadcasting channel, and the data broadcasting provided by the data server 120 of the head and device 120 while continuously watching the broadcasting channel without switching the broadcasting channel. The service is available.

Meanwhile, although FIG. 1 illustrates that the broadcast receiving device 200 is provided as a separate device outside the display device 300, in another embodiment of the present invention, the broadcast receiving device 200 is the display device 300. It may be included in the) and implemented as a set.

According to an embodiment of the present invention, the broadcasting system as shown in FIG. 1 may be used to provide a data broadcasting service in a limited space such as a hotel or a hospital, for example, in a specific building.

Hereinafter, an embodiment of the present invention will be described by taking a hotel broadcasting system that provides a data broadcasting service in a hotel together with a general broadcasting service using a broadcast signal received from the outside.

That is, the broadcast receiving device 200 and the display device 300 are disposed in a hotel room, and the head and device 100 receives a broadcast signal from the outside by using a satellite or a cable, and the like and application data for data broadcasting in the hotel. And a plurality of broadcast receiving devices 200 arranged in a room.

According to an embodiment of the present invention, the data broadcasting service in the hotel may be a service for providing specific information to the user by using a banner, for example, an advertisement phrase or information to be provided to the guests in the hotel. May be a service for displaying on the display screen together with the image of the broadcast panel in the form of a banner.

In addition, the data broadcasting service in the hotel may include a pay per view (PPV) service, a room service, a hotel information service, a reservation service, and a checkout, in addition to the banner advertisement service. It may include a variety of services that may be provided in the hotel, such as checkout information, entertainment (entertainment) or game services (game).

FIG. 2 illustrates an embodiment of the configuration of the head and device 100 managed by the hotel. The head and device 100 of the hotel may include a plurality of broadcast transmission devices 111 and 112 and a data generator. It may include an in-hotel data server 120 including 120.

Referring to FIG. 2, the first and second broadcast transmission apparatuses 111 and 112 may receive different types of content from the outside, and more specifically, may receive broadcast signals from different broadcast providers, or mutually. The broadcast signal may be received using another communication network.

For example, the first broadcast transmission device 111 may receive a broadcast signal including content provided for free to a user in a hotel from the outside and transmit the received broadcast signal to the broadcast reception device 200 and process the received broadcast signal. It may include a transcoder (transcoder) and a converter (converter) for the purpose.

In addition, the first broadcast transmission device 110 may include an encryption unit and a modulator to process a broadcast signal provided from a specific broadcaster (generally, a provider of pay content). Can be.

Meanwhile, the second broadcast transmission device 112 may receive a broadcast signal including content provided to a user from outside from the outside and transmit the received broadcast signal to the broadcast reception device 200 to process a user's request for viewing paid content. And a video on demand (VOD) processing unit and a modulator and converter for processing the received broadcast signal.

The VOD processing unit may include a central processing unit (CPU), a memory, a VOD mux, a contents server, and the like to process the VOD service.

As illustrated in FIG. 2, the in-hotel data server 120 may include a data generator 121 generating application data for providing in-hotel data broadcasting service according to a predetermined data broadcasting standard.

For example, the data generator 121 may generate application data for the data broadcasting service in the hotel according to the Advanced Common Application Platform (ACAP) standard.

The data broadcasting information according to the ACAP standard includes an application information table (AIT) and digital storage media command and control (DSM-CC) data, and the AIT and DSM-CC are transmitted in the form of a transport stream. Can be.

The AIT includes the presence or absence of data broadcasting, update information, and the like. The DSM-CC includes control data such as substantial data for providing data broadcasting, for example, font of an image or text.

The data generator 121 configures and outputs a DSM-CC according to the ACAP standard by using image, text data, or EPG (Electronic Program Guide) data representing hotel-related information, etc. stored in the data server 120. Can be.

In addition, in order to provide a banner advertisement service which is a data broadcast according to an embodiment of the present invention, the data generator 121 may generate an Xlet which is a Java application. The Xlet may generally be composed of a Java class file that implements actual operations in Java, a text file including character information, and an image file displaying menus, icons, and pictures on the screen.

Referring to FIG. 2, an external broadcast signal received by the broadcast transmitting device 110 and application data for an in-hotel data broadcasting service provided from the data server 120 may be transmitted together using one communication network 130. have.

That is, the broadcast signal received by the first broadcast transmission device 111, the broadcast signal received by the second broadcast transmission device 112, and the application data generated by the data generator 120 are respectively assigned to different channels. It may be transmitted to the broadcast receiving device 200 together as one broadcast signal through the communication network 130 installed in the hotel.

In one embodiment according to the present invention, the broadcast signal received from the broadcast transmission device 110 and the application data provided from the data server 120 together to the broadcast reception device 200 via a radio frequency (RF) cable in a hotel. Can be sent.

As described above, by transmitting the application data for the data broadcasting service in the hotel through the RF (Radio Frequency) cable installed to transmit the broadcast signal to the broadcast receiving device 200 disposed in each room in the hotel, It is possible to provide in-hotel data broadcasting service using existing facilities without establishing a communication network in the hotel.

Meanwhile, as described above, when a user requests a data broadcasting service in a hotel, a broadcast reception device (100) may be used to simultaneously display an image of a broadcasting channel currently viewed on a screen of the display apparatus 300 and an image of the data broadcasting service. 200 must be able to simultaneously receive the video signal of the broadcast channel and the application data for the data broadcast.

For that purpose, the application data for the in-hotel data broadcasting service is preferably transmitted together with the broadcast signal through the in-hotel communication network 130 using a dedicated data channel independent of the broadcast channels through which the broadcast signals are transmitted. Do.

That is, the application data for the data broadcasting service in the hotel may be transmitted to the broadcast receiving device 200 through a dedicated data dedicated channel separate from the broadcast channels through which the broadcast signal received by the broadcast transmitting device 110 is transmitted. . More specifically, the broadcast channels may not include any application data for the data broadcasting service in the hotel, and the data dedicated channel may include only the application data.

Accordingly, the data broadcasting service in the hotel may be provided together with the image of the broadcasting channel using application data received through the data dedicated channel, if desired by the user, regardless of the broadcasting channel currently being watched by the user. .

3 is a block diagram illustrating a configuration of the broadcast reception device 200 according to an embodiment of the present invention. The broadcast reception device 200 shown in FIG. 3 includes a plurality of tuners 210 and 220 and demodulators 230. 240, decoders 250 and 260, and an image processor 270.

Referring to FIG. 3, the first tuner 210 receives a video signal corresponding to a broadcast channel selected by a user among broadcast signals transmitted from the head end device 100 (generally, audio signals of the broadcast channel are also included. Can be received).

The second tuner 220 extracts a signal corresponding to a data-only channel among the broadcast signals transmitted from the head and device 100 and receives application data for the data broadcasting service in the hotel.

That is, the second tuner 220 may be a data broadcast dedicated tuner for receiving only application data provided from the data server 120 in the hotel and fixed to the data dedicated channel.

As described above, when the second tuner 220 receives the signal of the data dedicated channel independent of the broadcast channel received by the first tuner 210, the broadcast receiving device 200 may receive an image signal of the broadcast channel selected by the user. Application data for a data broadcasting service in a hotel may be simultaneously received.

In addition, the broadcast reception device 200 receives application data for the data broadcasting service in the hotel together with the image signal of the broadcast channel even if the user does not change the broadcast channel that the user is currently watching to the channel through which the application data is transmitted. can do.

The first demodulator 230 may correct an error of the video signal of the broadcast channel received by the first tuner 210 and convert the error into a transport stream (TS) format. The received video signal and the audio signal may be decoded and processed to be output from the display apparatus 300.

 The second demodulator 240 performs the demodulation operation as described above on the application data received from the second tuner 220, and the data decoder 260 decodes the application data to broadcast data in the hotel. It is possible to compose an image for a service.

For example, the data decoder 260 may decode the application data according to the ACAP standard to configure an image for a data broadcasting service in a hotel.

More specifically, the data decoder 260 parses an AIT session among the application data, reads an identifier corresponding to the DSM-CC data, and filters the DSM-CC data at a location corresponding to the identifier. Substantial information for providing an image of my data broadcasting service may be extracted.

The image processor 270 may display the image of the broadcast channel output from the AV decoder 250 so that the image of the broadcast channel selected by the user and the image of the data broadcasting service in the hotel are simultaneously displayed on one screen of the display apparatus 300. Video data of a data broadcast service output from the data decoder 260 may be synthesized.

4 is a flowchart illustrating a broadcast receiving method according to an embodiment of the present invention, and the broadcast receiving method shown in FIG. 4 will be described with reference to the block diagram shown in FIG. 3.

Referring to FIG. 4, the first tuner 210 receives an image signal corresponding to a broadcast channel selected by a user from among broadcast signals (step 400). The received image signal is converted into image data that can be displayed on the display apparatus 300 via the first demodulator 230, the AV decoder 250, and then output to the display apparatus 300. 300 displays an image of a broadcast channel selected by a user using the input image data.

On the other hand, the second tuner 220 receives the application data for data broadcasting of the broadcast signal transmitted from the head and the device 100 by using the data dedicated channel (step 410). The application data may be an application for displaying a banner image made of text on the display apparatus 300. For example, the application data may be implemented in Java to provide a banner advertisement service which is a data broadcasting service according to an embodiment of the present invention. It can be an Xlet application.

In operation 410, the Xlet application may configure the banner image using a banner manager for displaying a banner on a display screen using banner property information and banner property information in which properties for displaying a banner are defined. have.

Thereafter, the broadcast receiving device 200 configures a banner image using the application data received by the second tuner 220 (step 420). That is, the application data received by the second tuner 220 is output through the second demodulator 240 and the data decoder 260, and the image processor 270 outputs the image of the broadcast channel output from the AV decoder 250. Data and banner image data output from the data decoder 260 may be input.

The image processor 270 synthesizes the image data of the input broadcast channel and the banner image data (step 430), and outputs the synthesized image data to the display apparatus 300 (step 440).

FIG. 5 is a flowchart illustrating an embodiment of a method of configuring a banner image using application data in step 420.

Referring to FIG. 5, the application, for example, an Xlet application, obtains banner attribute information (step 500). That is, the Xlet application may obtain banner attribute information using the received application data.

The banner property information includes properties for displaying a banner, the content displayed on the banner (for example, the content of the banner message), the display position of the banner (for example, the top or bottom of the display screen), the banner The display method of, for example, how the position of the banner is moved or fixed to a certain position by slide method, the color of the background or text of the banner, the transparency of the banner's background image, Information about the font or the size may be included.

The following is an example of implementing the banner attribute information (BannerAttribute) in Java.

In step 500, the Xlet application may determine banner attributes to generate banner attribute information (BannerAttribute) having the configuration as described above.

Thereafter, the Xlet application registers the banner attribute information generated in step 500 with the banner manager (step 510).

The banner manager may directly configure a banner image displayed on a display screen according to the generated banner property information. For this, the banner manager may be implemented as a Java class.

The banner manager receives the generated banner attribute information from the Xlet application to change the state of the banner displayed on the display screen, and a plurality of APIs for this purpose. It may be configured to include.

More specifically, the BannerManager includes a state control API (setBanner) for controlling the output of the banner and a state information API (getBanner) for indicating the current output state of the banner according to a command input from an Xlet application. can do.

For example, the state of the banner that can be represented by the state information API (getBanner) may be four, specifically, a banner image is not ready state (Not Ready state), the banner image is ready After the banner is configured but not yet displayed, the ready state, the banner display state in which the banner image is displayed on the display screen, and the banner stop state when the banner is stopped. state).

When the banner image is to be displayed on the display screen, the application calls the banner manager in which manner attribute information is registered (step 520), and the called banner manager composes a banner image using the registered banner attribute information. (Step 530).

 For example, the Xlet application sends a showMessage command to the banner manager (BannerManager), and the banner manager (BannerManager) receiving the showMessage command provides information on the attributes of the banner defined in the registered banner attribute information (BannerAttribute). The banner image may be displayed on the display screen.

By the above-described method, the broadcast receiving device 200 composes a banner image using the application data received from the head and device 100, for example, an Xlet application, and then synthesizes the banner image with the image of the broadcast channel to display the display device ( 300, and a banner image having an attribute described in banner attribute information (BannerAttribute) may be displayed on the screen of the display apparatus 300 along with the image of the broadcast channel.

FIG. 6 illustrates a display screen on which a data broadcasting service is provided in a hotel, and illustrates an embodiment of a banner advertisement service screen provided by the above-described method.

Referring to FIG. 6, an image 600 of a broadcast channel selected by a user may be displayed on a screen of the display apparatus 300, and a banner image 610 may be displayed by being superimposed on the image 600 of the broadcast channel. .

On the other hand, as described above, the application data for the banner advertising service is received at the same time as the video signal of the broadcast channel through a data-only channel, so that the user includes the desired content at the desired time regardless of the broadcast channel watched by the user The banner image 610 may be superimposed on the image 500 of the broadcast channel and displayed.

In the above description, a broadcast reception method and apparatus according to the present invention and a broadcast system using the same have been described with an example of providing a data broadcasting service in a hotel, but the present invention is not limited thereto and is provided in a limited space such as a hospital in addition to a hotel. It can be used for a variety of data broadcast services or data broadcast services according to the general Global Executable MHP (GEM) based standards.

In addition, the above-described broadcast receiving method according to the present invention may be stored in a computer-readable recording medium that is produced as a program to be executed in a computer, and examples of the computer-readable recording medium include ROM, RAM, CD- ROMs, magnetic tapes, floppy disks, optical data storage, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium can be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the broadcast reception method may be easily inferred by programmers in the art to which the present invention belongs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

1 is a block diagram showing the configuration of a broadcast system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an embodiment of the configuration of the head and device shown in FIG.

3 is a block diagram illustrating a configuration of a broadcast receiving apparatus according to an embodiment of the present invention.

4 is a flowchart illustrating a broadcast receiving method according to an embodiment of the present invention.

5 is a flowchart illustrating an embodiment of a method of configuring a banner image using application data.

FIG. 6 is a diagram illustrating embodiments of a display screen provided with a data broadcasting service in a hotel.

Claims (13)

Receiving a signal of a broadcast channel selected by a user; Receiving application data for a data broadcast service using a data dedicated channel; Constructing a banner image using the received application data; And And synthesizing the received banner channel image and the configured banner image. The method of claim 1, wherein the banner image forming step Obtaining banner attribute information by using the received application data; And And configuring the banner image according to the obtained banner attribute information. The method of claim 2, wherein the banner attribute information is And at least one of contents of the banner, display position, display method, color, transparency, and text font size. The method of claim 2, And the banner property information is registered in a banner manager. The method of claim 4, wherein And calling the banner manager registered with the banner property information to configure the banner image. The method of claim 5, wherein the banner manager A broadcast reception method comprising a status control API (Application Programming Interface) for controlling the output of the banner and a status information API for indicating the output status of the banner. The method of claim 6, The output state of the banner by the state information API is any one of a state before banner configuration, a state before display after banner configuration, a banner display state, and a banner display stop state. The method of claim 1, And a broadcast channel signal and application data of the data dedicated channel are simultaneously received. The method of claim 1, The data broadcasting service is a broadcast reception method provided in a hotel. The method of claim 9, wherein the application data Broadcast receiving method received from a data server in the hotel. A broadcast receiving device which performs the broadcast receiving method according to any one of claims 1 to 10. The method of claim 11, A first tuner configured to receive a signal of a broadcast channel selected by the user among broadcast signals; And And a second tuner which extracts a signal of the data dedicated channel from the broadcast signal and receives the application data for the data broadcast service. A computer-readable recording medium having recorded thereon a program for executing the broadcast receiving method according to any one of claims 1 to 10.

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