KR20100133803A - Method and apparatus for receiving a broadcasting signal, and broadcasting system - Google Patents

Abstract

PURPOSE: A broadcasting system using a broadcasting receiving method for efficiently offering a data broadcasting service and an apparatus thereof are provided to supply the data broadcasting service by receiving application data. 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 a data exclusive channel(420). The image of the broadcast channel and the image of data broadcasting service are displayed on one screen. The signal and application data of the received broadcast channel are synthesized(430). The application data for data broadcasting service is received without the change over of the broadcast channel.

Description

Method and apparatus for broadcasting reception, broadcasting system using same {Method and apparatus for receiving a broadcasting signal, and broadcasting system}

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, and a broadcast system using the same.

In accordance with another aspect of the present invention, a broadcast receiving method includes: receiving a signal of a broadcast channel selected by a user; Receiving application data for a data broadcast service using a data dedicated channel; And synthesizing the received broadcast channel signal and the application data so that the image of the broadcast channel and the image of the data broadcast service are displayed on one screen.

In accordance with another aspect of the present invention, a broadcast receiving device includes: a first tuner configured to receive a signal of a broadcast channel selected by a user; A second tuner which extracts a signal of a data dedicated channel and receives application data for the data broadcasting service; And an image processor for synthesizing the received broadcast channel signal and application data.

On the other hand, the broadcast system according to an embodiment of the present invention, a broadcast transmission device for receiving a broadcast signal from the outside and transmits it to the broadcast receiving device in the room; A data server providing application data for the data broadcasting service in the hotel; A broadcast reception device for synthesizing the application data received from the data server through a signal of a broadcast channel received from the broadcast transmission device and a data dedicated channel; And a display device for simultaneously displaying an image of the broadcast channel and an image of the data broadcasting service in the hotel by using the signal output from the broadcast reception device.

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 separately providing a tuner for receiving the application data of the data dedicated channel, it is possible to easily implement a data broadcasting service provided in a limited space such as a hotel independently of the general broadcasting service.

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 broadcast channel and the application data received from the data server 120 is synthesized and processed to be displayed on one screen, and then output to the display device 300.

Meanwhile, 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 includes a data dedicated channel independent of the broadcasting channel. It is preferable to transmit 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.

For example, the data broadcasting service in the hotel includes a pay per view (PPV) service, a room service, a hotel related information service, a reservation service, and a checkout information service. It may be a room interactive service including various services that may be provided in a hotel such as information, entertainment information, game, or the like.

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 devices 111 and 112 may receive different types of content from the outside, and more specifically, may receive broadcast signals from different broadcast providers, or Broadcast signals may be received using different communication networks.

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 shown in FIG. 2, the in-hotel data server 120 may include a data generator 121 for 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, and the DSM-CC includes control data such as actual data for serving the data broadcasting, for example, a 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.

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 channel separate from the broadcast channels through which the broadcast signal received by the broadcast transmitting device 110 is transmitted. have. 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 provide a data broadcasting service in the hotel. You can configure the image for.

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 to read an identifier corresponding to the DSM-CC data, and filters the DSM-CC data at a position corresponding to the identifier. Substantial information for providing an image of a data broadcasting service in a hotel 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.

As described above, while the image of the broadcasting channel selected by the user is displayed on the display apparatus 300, it is determined whether the user requests a data broadcasting service in the hotel (step 410).

When the data broadcast service is requested, the second tuner 220 receives application data among broadcast signals transmitted from the head and device 100 using a data dedicated channel (step 420).

In this case, since the application data is received by the second tuner 220 instead of the first tuner 210 through a data dedicated channel separate from the broadcast channel, it is not necessary to switch the broadcast channel that the user is currently watching. Do. That is, while the user continues to watch the broadcast channel through the display device 300, the broadcast reception device 200 uses the second tuner 220 for the data broadcasting service in the hotel through the data dedicated channel. Application data can be received.

The application data received by the second tuner 220 is output through the second demodulator 240, the data decoder 260, and the like, and the image processor 270 outputs the image data of the broadcast channel output from the AV decoder 250. And image data of a data broadcast service output from the data decoder 260 together.

Thereafter, the image processor 270 synthesizes the image data of the input broadcasting channel and the image data of the data broadcasting service in the hotel (step 430), and outputs the synthesized image data to the display apparatus 300 (440). step).

For example, the image processor 270 may synthesize the image data such that the image of the broadcasting channel is displayed on the background of a display screen and the image of the data broadcasting service in the hotel is displayed on the image of the broadcasting channel. Can be.

In addition, the image processor 270 may synthesize the image data such that any one of the image of the broadcasting channel and the image of the data broadcasting service in the hotel is displayed in the form of a picture in picture (PIP).

5 and 6 illustrate embodiments of a display screen provided with a data broadcasting service in a hotel.

Referring to FIG. 5, an image 500 of a broadcast channel selected by a user is displayed on a screen of the display apparatus 300, and a user may request a data broadcasting service in a hotel while viewing the broadcast channel.

In this case, the application data for the data broadcasting service in the hotel is received at the same time as the video signal of the broadcast channel through the data-only channel, as shown in Figure 5, the data broadcasting service in the hotel without switching the broadcast channel that the user is watching An image 510 may be displayed by being superimposed on the image 500 of the broadcast channel.

Referring to FIG. 6, when a user requests a data broadcasting service in a hotel, the data broadcasting service image 610 in the hotel is displayed on a display screen, and the image 600 of the broadcasting channel watched by the user is in a PIP form. It may be continuously displayed in some areas of the display screen.

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 various data broadcasting services.

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 and 6 are diagrams illustrating embodiments of a display screen provided with a data broadcasting service in a hotel.

Claims (17)

Receiving a signal of a broadcast channel selected by a user; Receiving application data for a data broadcast service using a data dedicated channel; And And synthesizing the received broadcast channel signal and application data such that the video of the broadcast channel and the video of the data broadcast service are displayed on one screen. The method of claim 1, And the data dedicated channel is configured independently of the broadcast channel such that application data for the data broadcast service is received without switching the broadcast channel the user is currently watching. 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 broadcast receiving method and the signal of the broadcast channel and the application data of the data dedicated channel is received using a different tuner (tuner). The method of claim 1, The broadcast reception method of the signal of the broadcast channel and the application data of the data dedicated channel is simultaneously received via a radio frequency (RF) cable. The method of claim 1, And the data broadcasting service is a data broadcasting service provided in a hotel. The method of claim 6, And the application data is received from a data server in the hotel. A first tuner for receiving a signal of a broadcast channel selected by a user; A second tuner which extracts a signal of a data dedicated channel and receives application data for a data broadcast service; And And a video processor for synthesizing the received broadcast channel signal and application data. The method of claim 8, Application data for the data broadcast service is a broadcast receiving device that is received without switching the broadcast channel that the user is currently watching. The method of claim 8, And the second tuner receives application data of the data dedicated channel while the first tuner receives a signal of the broadcast channel. The method of claim 8, And the second tuner is a data broadcast dedicated tuner fixed to the data dedicated channel. The method of claim 8, wherein the image processor And a video broadcasting service and a video broadcasting service video are displayed on one screen. The method of claim 8, And the data broadcast service is a data broadcast service provided in a hotel. In the broadcasting system for providing a data broadcasting service in the hotel, A broadcast transmission device receiving a broadcast signal from the outside and transmitting the broadcast signal to a broadcast reception device in a room; A data server providing application data for the data broadcasting service in the hotel; A broadcast reception device for synthesizing the application data received from the data server through a signal of a broadcast channel received from the broadcast transmission device and a data dedicated channel; And And a display device configured to simultaneously display an image of the broadcast channel and an image of the data broadcasting service in the hotel by using the signal output from the broadcast reception device. The apparatus of claim 14, wherein the broadcast reception device is A broadcast system for receiving application data for the data broadcasting service in the hotel without switching the broadcast channel that the user is currently watching. The method of claim 14, The broadcast channel signal and the application data is transmitted to the broadcast receiving device via a radio frequency (RF) cable installed in the hotel. 15. The system of claim 14, wherein said data server is And a data generator for generating and outputting the application data according to a data broadcasting standard.

Images