KR101572266B1 - Method and apparatus for receiving a broadcasting signal and broadcasting system - Google Patents

Abstract

The present invention relates to a broadcast receiving method and apparatus, and an in-hotel data broadcasting system using the same, the method comprising: receiving a signal of a broadcast channel selected by a user; Receiving application data for a data broadcasting service using a data dedicated channel; And combining the broadcast channel signal and the application data so that the video of the broadcast channel and the video of the data broadcast service are displayed on one screen.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a broadcast receiving method and apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention 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.

Generally, a broadcast receiving apparatus 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 extracted video and audio data stream to a display device.

In recent years, data broadcasting has been provided to provide various information to users by adding additional data to digital broadcasting and the like. For example, through data broadcasting, program information, caption information, weather information, news information, or shopping information of a broadcast channel can be provided to a user.

The present invention provides a broadcast receiving method and apparatus capable of effectively providing a data broadcasting service characterized by a limited space such as a hotel, and a broadcasting system using the same.

According to another aspect of the present invention, there is provided a broadcast receiving method including: receiving a signal of a broadcast channel selected by a user; Receiving application data for a data broadcasting service using a data dedicated channel; And synthesizing the received broadcast channel signal and application data so that an image of the broadcast channel and an image of the data broadcast service are displayed on one screen.

A broadcast receiving apparatus according to an embodiment of the present invention includes: a first tuner for receiving a signal of a broadcast channel selected by a user; A second tuner for extracting a signal of a data-dedicated channel and receiving application data for the data broadcasting service; And an image processor for synthesizing the received broadcast channel signal and application data.

Meanwhile, a broadcasting system according to an exemplary embodiment of the present invention includes: a broadcast transmission apparatus for receiving a broadcast signal from outside and transmitting the received broadcast signal to a in-room broadcast receiving apparatus; A data server for providing application data for the in-house data broadcasting service; A broadcast receiving apparatus for synthesizing and outputting application data received from the data server through a broadcast channel signal received from the broadcast transmitting apparatus and a data dedicated channel; And a display device for simultaneously displaying an image of the broadcast channel and an image of the in-house data broadcasting service using a signal output from the broadcast receiving device.

According to an embodiment of the present invention, a data broadcasting service can be provided to a user without switching a broadcast channel currently viewed by receiving application data for data broadcasting through a data dedicated channel independent from the broadcast channel. In addition, a data broadcasting service provided in a limited space such as a hotel can be easily implemented independently of a general broadcasting service by separately providing a tuner for receiving application data of the data-dedicated channel.

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

FIG. 1 is a block diagram illustrating a configuration of a broadcasting system according to an embodiment of the present invention. The broadcasting system includes a head end apparatus 100, a broadcast receiving apparatus 200, and a display apparatus 300, . ≪ / RTI >

1, the head-end apparatus 100 receives a broadcast signal from the outside and transmits the broadcast signal to the broadcast receiving apparatus 200. The broadcast receiving apparatus 200 receives a broadcast signal corresponding to a channel selected by the user, And may output the video signal (generally, including a voice signal) to the display device 300 after extracting and processing the video signal.

More specifically, the head-end apparatus 100 may include a broadcast transmission apparatus 110 and a data server 120. The broadcast transmitting apparatus 110 provides a broadcast signal received from the outside through a satellite or a cable to the broadcast receiving apparatus 200. The data server 120 transmits application data for a data broadcast service to the broadcast receiving apparatus 200, .

For example, the broadcast transmitting apparatus 110 may include a plurality of broadcasting signal receiving terminals and receive various contents from a plurality of broadcasting companies using a wired / wireless communication network through a terrestrial or satellite antenna, a cable, etc., The contents can be allocated to a plurality of broadcast channels and transmitted to the broadcast receiving apparatus 200.

Meanwhile, the broadcast receiving apparatus 200 receives a video signal of a broadcast channel selected by a user from among broadcast signals transmitted from the broadcast transmitting apparatus 110, and receives application data for data broadcast transmitted from the data server 120 .

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

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

The broadcast receiving apparatus 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 apparatus, and outputs the set-top box , STB).

However, the broadcast receiving apparatus 200 according to the present invention is not limited to the set-top box (STB), and may be any type of apparatus capable of receiving broadcast signals transmitted from the outside and outputting the broadcast signals to the display apparatus 300 connected by wire or wireless .

The display device 300 displays an image using a signal input from the broadcast receiving apparatus 200. The display device 300 may be a liquid crystal display (LCD), a plasma display panel (PDP), an electro luminescent display (ELD) Vacuum Fluorescent Display) can be used to display images.

Meanwhile, the broadcast receiving apparatus 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 apparatus 200 and the display apparatus 300 is not limited to the above-described method, and can be connected using cables of various communication methods. The broadcast receiving apparatus 200 and the display apparatus 300 may be connected to each other through a wireless network using a short-range wireless communication such as Zigbee, Bluetooth or Wlan .

According to the present invention, it is preferable that the video of the broadcasting channel selected by the user and the video of the data broadcasting service are simultaneously displayed on one screen in the display device 300. For this purpose, It is preferable that the video signal of the broadcast channel received from the video server 120 and the application data received from the data server 120 are combined and displayed on a screen and then output to the display device 300.

In order to receive the application data for the data broadcasting service from the data server 120 without switching the broadcast channel currently being watched by the broadcast receiving apparatus 200, the application data may include a data dedicated channel independent of the broadcast channel To the broadcast receiving apparatus 200 via the network.

That is, the broadcast transmitter 110 allocates broadcast signals received from the outside to a plurality of preset broadcast channels and transmits the broadcast signals to the broadcast receiver 120, and the data server 120 separately and independently The broadcast receiving apparatus 110 transmits the video data of the broadcast channel currently being viewed by the user and the application data for the data broadcast to the broadcast receiving apparatus 120 at the same time .

Accordingly, the user requests the data broadcasting service while watching the selected broadcasting channel, and continuously watches the broadcasting channel without switching the broadcasting channel, so that the data broadcasting service provided by the data server 120 of the head- Services are available.

1, the broadcast receiving apparatus 200 is shown as a separate device external to the display apparatus 300. However, in another embodiment of the present invention, the broadcast receiving apparatus 200 may be connected to the display apparatus 300 And may be implemented as one set.

According to an embodiment of the present invention, a broadcasting system as shown in FIG. 1 can 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, embodiments of the present invention will be described by taking as an example a hotel broadcasting system that provides an in-house data broadcasting service together with a general broadcasting service using a broadcasting signal received from the outside.

That is, the broadcast receiving apparatus 200 and the display apparatus 300 are disposed in a hotel room, and the head-end apparatus 100 receives a broadcast signal from outside using a satellite or a cable and transmits application data To the plurality of broadcast receiving apparatuses 200 arranged in the room.

For example, the in-house data broadcasting service may include a pay-per-view (PPV) service, a room service, a hotel information service, a reservation service, a room interactive service including various services that can be provided within the hotel, such as information, entertainment, game or the like.

FIG. 2 shows an embodiment of a configuration of a head-end apparatus 100 managed by a hotel. The hotel's head-end apparatus 100 includes a plurality of broadcast transmission apparatuses 111 and 112 and a data generation unit 120 in the hotel.

Referring to FIG. 2, the first and second broadcast transmission apparatuses 111 and 112 can receive different kinds of contents from the outside, more specifically, receive broadcast signals from different broadcasting companies, It is possible to receive broadcast signals using different communication networks.

For example, the first broadcast transmitting apparatus 111 may receive a broadcast signal including content provided free of charge to a user in the hotel from the outside and transmit the received broadcast signal to the broadcast receiving apparatus 200, A transcoder, a converter, and the like.

The first broadcast transmitting apparatus 110 may include an encryption unit and a modulator for processing a broadcast signal provided from a specific broadcast provider (generally, a provider that provides pay content) .

On the other hand, the second broadcast transmission apparatus 112 can receive a broadcast signal including contents to be provided to the user from the outside and transmit the broadcast signal to the broadcast receiving apparatus 200, A VOD (Video On Demand) processing unit, a modulator and a converter for processing the received broadcast signal, and the like.

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

As shown in FIG. 2, the in-hotel data server 120 may include a data generation unit 121 for generating application data for providing an in-house data broadcasting service according to a predetermined data broadcasting standard.

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

The data broadcasting information according to the ACAP standard includes an AIT (Application Information Table) and a DSM-CC (Digital Storage Media-Command and Control) data. The AIT and the DSM-CC are transmitted in the form of a transport stream .

The AIT includes presence / absence of data broadcasting and update information, and the DSM-CC includes control information such as substantial data for service of data broadcasting, for example, image or text fond.

The data generating unit 121 constructs and outputs a DSM-CC according to the ACAP standard by using an image, text data, or EPG (Electronic Program Guide) data indicating hotel related information stored in the data server 120 .

2, application data for an in-house data broadcasting service provided from the data server 120 and an external broadcast signal received by the broadcast transmission apparatus 110 may be transmitted together using one communication network 130 have.

That is, the broadcasting signal received by the first broadcasting transmitter 111, the broadcasting signal received by the second broadcasting transmitter 112, and the application data generated by the data generator 120 are allocated to different channels, And may be transmitted to the broadcast receiving apparatus 200 together with a single broadcast signal through a communication network 130 installed in the hotel.

In one embodiment of the present invention, the broadcasting signal received from the broadcasting transmitter 110 and the application data provided from the data server 120 are transmitted together with the broadcasting receiver 200 through a RF (Radio Frequency) cable in the hotel Lt; / RTI >

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

Meanwhile, in order for a user to request an in-house data broadcasting service as described above, in order for a video of a currently viewed broadcast channel and an image of the data broadcasting service to be simultaneously displayed on the screen of the display device 300, 200 must be able to simultaneously receive the video signal of the broadcast channel and the application data for the data broadcast.

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

That is, the application data for the in-house data broadcasting service may be transmitted to the broadcast receiving apparatus 200 through a separate data-dedicated channel separate from the broadcast channels through which the broadcast signals received by the broadcast transmitting apparatus 110 are transmitted have. More specifically, the broadcast channels do not include at least a part of the application data for the in-hotel data broadcasting service, and the data dedicated channel may include only the application data.

Accordingly, the in-house data broadcasting service can be provided together with the image of the broadcast channel using the application data received through the data-dedicated channel, if the user desires, regardless of the broadcast channel the user is currently viewing .

3 is a block diagram illustrating a configuration of a broadcast receiving apparatus 200 according to an embodiment of the present invention. The broadcast receiving apparatus 200 includes a plurality of tuners 210 and 220, demodulators 230, 240, decoders 250 and 260, and an image processing unit 270. [

Referring to FIG. 3, the first tuner 210 receives a video signal corresponding to a broadcasting channel selected by the user among broadcasting signals transmitted from the head-end apparatus 100 (generally, Lt; / RTI >

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

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

As described above, the second tuner 220 receives the signal of the data dedicated channel independent of the broadcast channel received by the first tuner 210, so that the broadcast receiving apparatus 200 can receive the video signal of the broadcast channel selected by the user The application data for the in-house data broadcasting service can be simultaneously received.

Also, even if the user does not switch the broadcast channel currently being watched to the channel through which the application data is transmitted, the broadcast receiving apparatus 200 receives the application data for the in-hotel data broadcasting service together with the video signal of the broadcast channel can do.

The first demodulator 230 can correct an error of a video signal of a broadcast channel received by the first tuner 210 and convert the error into a transport stream (TS) format, and the AV decoder 250 The received video signal and audio signal can be decoded and processed to be output from the display device 300. [

 The second demodulator 240 performs the demodulation operation on the application data received by the second tuner 220. The data decoder 260 decodes the application data to transmit the in-house data broadcasting service Can be configured.

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

More specifically, the data decoder 260 parses the AIT session among the application data to read the identifier corresponding to the DSM-CC data, filters the DSM-CC data corresponding to the identifier It is possible to extract substantial information for providing a video of the in-house data broadcasting service.

The image processing unit 270 receives the image data of the broadcasting channel outputted from the AV decoder 250 and the image data of the broadcasting channel selected by the user so that the image of the broadcasting channel selected by the user and the image of the data broadcasting service of the hotel are simultaneously displayed on the screen of the display device 300 The video data of the data broadcasting service output from the data decoder 260 can be synthesized.

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

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

While the image of the broadcast channel selected by the user is displayed on the display device 300, it is determined in step 410 whether the user has requested the in-house data broadcasting service.

When the data broadcasting service is requested, the second tuner 220 receives the application data of the broadcasting signal transmitted from the head-end apparatus 100 using the data-dedicated channel (operation 420).

In this case, since the application data is received by the second tuner 220 instead of the first tuner 210 through a separate data dedicated channel separate from the broadcast channel, it is unnecessary to switch the broadcast channel currently viewed by the user Do. That is, while the user continues to watch the broadcast channel through the display device 300, the broadcast receiving apparatus 200 can use the second tuner 220 to transmit the in- Application data can be received.

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 data of the broadcast channel output from the AV decoder 250 And the video data of the data broadcasting service output from the data decoder 260 may be input together.

Thereafter, the image processing unit 270 combines the video data of the input broadcasting channel with the video data of the in-house data broadcasting service in operation 430, and outputs the combined video data to the display apparatus 300 step).

For example, the image processing unit 270 synthesizes the image data so that the image of the broadcast channel is displayed as the background of the display screen, and the image of the in-house data broadcasting service is superimposed on the image of the broadcast channel .

In addition, the image processing unit 270 may combine the image data so that one of the image of the broadcast channel and the image of the in-house data broadcasting service is displayed in the form of a Picture In Picture (PIP).

5 and 6 show embodiments of a display screen on which an in-hotel data broadcasting service is provided.

5, an image 500 of a broadcasting channel selected by the user is displayed on the screen of the display device 300, and a user can request an in-house data broadcasting service while viewing the broadcasting channel.

In this case, the application data for the in-house data broadcasting service is received simultaneously with the video signal of the broadcasting channel through the data-dedicated channel, and as shown in FIG. 5, An image 510 of the broadcast channel may be superimposed on the image 500 of the broadcast channel.

6, when a user requests an in-house data broadcasting service, the in-house data broadcasting service image 610 is displayed on the display screen and the image 600 of the broadcasting channel that the user is viewing is in the form of a PIP And may be continuously displayed on a part of the display screen.

In the above description, the broadcasting receiving method and apparatus according to the present invention and the broadcasting system using the broadcasting receiving system according to the present invention are described as an example of providing the in-house data broadcasting service. However, the present invention is not limited thereto. And the like.

In addition, the broadcasting receiving method according to the present invention can be stored in a computer-readable recording medium. The computer-readable recording medium includes a ROM, a RAM, a CD- ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet).

The computer readable recording medium may be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And, functional programs, codes and code segments for implementing the broadcast receiving method can be easily inferred by programmers of the technical field 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 illustrating a configuration of a broadcasting system according to an embodiment of the present invention.

2 is a block diagram showing an embodiment of the configuration of the head-end apparatus 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 and 6 are views showing embodiments of a display screen on which an in-hotel data broadcasting service is provided.

Claims (17)

Receiving an image of a broadcast channel selected by the user; Displaying an image of the broadcast channel and receiving a user input requesting a data broadcasting service while an image of the broadcast channel is being displayed; Receiving application data including an image of the data broadcasting service using a data-dedicated channel upon receiving a user input requesting the data broadcasting service; And Synthesizing an image of the broadcast channel and an image of the data broadcasting service, and outputting the synthesized image, The video of the data broadcasting service is superimposed on and displayed on the video of the broadcast channel Receiving method. The method according to claim 1, Wherein the data-only channel is configured to be independent of the broadcast channel so that application data including an image of the data broadcast service is received without switching the broadcast channel currently viewed by the user. The method according to claim 1, And the application data received using the broadcast channel and the data dedicated channel are simultaneously received. The method according to claim 1, Wherein the application data received using the broadcast channel and the data dedicated channel is received using a different tuner. The method according to claim 1, Wherein the application data received using the broadcast channel and the data dedicated channel are simultaneously received through an RF (Radio Frequency) cable. The method according to claim 1, Wherein the data broadcasting service is a data broadcasting service provided in a hotel. The method according to claim 6, Wherein the application data is received from a data server in the hotel. A first tuner for receiving an image of a broadcast channel selected by a user; A second tuner for receiving application data including an image of the data broadcasting service using a data channel when a user input for requesting a data broadcasting service is displayed while an image of the broadcasting channel is being displayed; And And an image processing unit for synthesizing and outputting an image of the broadcast channel and an image of the data broadcasting service, The video of the data broadcasting service is superimposed on and displayed on the video of the broadcast channel Broadcast receiving apparatus. 9. The method of claim 8, Wherein the application data including the video of the data broadcasting service is received without switching the broadcast channel currently viewed by the user. 9. The method of claim 8, Wherein the second tuner receives application data including an image of the data broadcasting service while the first tuner receives the image of the broadcast channel. 9. The method of claim 8, The second tuner includes: And a data broadcasting dedicated tuner fixed to the data dedicated channel. delete 9. The method of claim 8, The data broadcasting service includes: A broadcast receiving apparatus, which is a data broadcasting service provided in a hotel. A broadcasting system for providing a data broadcasting service, A broadcast transmitting apparatus for receiving an image of a broadcast channel from outside and transmitting the received image to a in-room broadcast receiving apparatus; A broadcast receiving apparatus for outputting a video of a broadcast channel received from the broadcast transmitting apparatus; A display device for displaying an image of the output broadcast channel; And A data server for providing application data including an image of the data broadcasting service using a data dedicated channel when a user input for requesting the data broadcasting service is displayed while an image of the broadcasting channel is being displayed through the display device; Lt; / RTI > The broadcast receiving apparatus includes: Outputting an image of a broadcast channel received from the broadcast transmitting apparatus and an image obtained by synthesizing an image of the data broadcasting service received from the data server using the data dedicated channel to the display device, The display device includes: Displays an image in which an image of the broadcast channel and an image of the data broadcasting service are combined, The video of the data broadcasting service is superimposed on and displayed on the video of the broadcast channel Broadcasting system. 15. The method of claim 14, The broadcast receiving apparatus includes: Wherein the application data including the video of the data broadcasting service is received without switching the broadcasting channel currently viewed by the user. 15. The method of claim 14, The application data including the video of the broadcast channel and the video of the data broadcasting service, And is transmitted to the broadcast receiving apparatus through an RF (Radio Frequency) cable installed in the hotel. 15. The method of claim 14, The data server comprising: And a data generator for generating and outputting application data including an image of the data broadcasting service according to a data broadcasting standard.

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