KR20100018953A - Image display device and method for realizing of teletext of the same - Google Patents

Abstract

PURPOSE: A method for materializing image display device and teletext is provided to directly set background music. CONSTITUTION: A teletext processing unit(20) detects and processes teletext information from received broadcasting signal. A image processing unit(30) processes teletext information from the teletext processing unit. A display unit(40) displays teletext information processed from the image processing unit. When teletext execution command is input from outside, a controller(60) outputs background music of teletext information.

Description

Image display device and method for realizing of Teletext of the same}

The present invention relates to a video display device, and more particularly, to a video display device and a teletext implementation method for providing a background music (BGM) service of teletext.

In general, video display devices are typical of televisions, and televisions have been changed from analog to digital televisions, which are rapidly replacing conventional analog televisions.

Today, as a transition to a complete digital broadcast, most digital televisions on the market today fully support the reception of existing analog signals in addition to the reception of digital signals.

In addition, the digital television can display the received analog and digital signals on the screen in various ways using a multi-image display method consisting of a main screen and a sub-screen such as PIP (Picture In Picture) and POP (Picture Out Picture). .

These televisions have added additional functions as a way to enhance the viewer's convenience. One such additional function is a teletext (text multicasting) function that receives various text broadcasts and provides them to the user.

Here, the teletext function is an example of data broadcasting information carried on a video signal among television broadcasting signals. In analog broadcasting, the teletext function is displayed on a vertical blanking interval (VBI) of a composite video baseband signal (CVBS). It detects additional information such as teletext and caption and provides it to the user through data processing.It mainly provides information such as price information, stock quotes, news, weather forecast, program guide, program details and traffic guide. give.

This teletext information resides in lines 6-22 and 318-335 in the VBI section of the CVBS signal. That is, as shown in FIG. 1, a color burst exists after the start of the horizontal synchronization signal, and then information such as a clock run-in and a framing code is displayed as bit string information. It exists by value.

Accordingly, when the user wants to see the teletext information, the framing code for checking the existence of the teletext data is analyzed and the teletext data is displayed on the screen if it exists, and the screen is blacked if it does not exist.

However, such a conventional technology provides only voice information carried in a current broadcast signal when providing a teletext function according to a user's request as described above.

That is, the user could only listen to the voice information according to the corresponding channel when using the teletext function, and when the user does not want the voice information on the corresponding channel, the user can take other actions except setting the voice volume to zero. There was no.

In addition, at present, such as an airport, a hotel, a hospital, and the like, the teletext information may be displayed for a long time in order to provide a convenience to the customer. There is a problem that causes dissatisfaction.

According to an embodiment of the present invention, the user can directly set the background music to be output when the teletext information is displayed.

In addition, an embodiment of the present invention provides a background music service by using digital video recorder (DVR), an external storage medium, an external input, and voice information of another channel when providing teletext information.

An image display device according to an embodiment of the present invention includes a broadcast receiving unit for receiving a broadcast signal input from the outside; A teletext processor for detecting and processing teletext information from the broadcast signal received from the broadcast receiver; An image processor configured to display teletext information signaled from the teletext processor; A display unit which displays the teletext information processed by the image processor; And a controller configured to control to output specific voice information to the background music of the teletext information according to the presence or absence of a preset teletext background music when the teletext execution command is input from the outside.

In addition, the teletext implementation method of the image display device according to an embodiment of the present invention comprises the steps of detecting the teletext information from the received broadcast signal; Displaying the detected teletext information; Determining whether a preset teletext background music exists; And providing specific voice information as the background music of the teletext information according to the existence of the teletext background music.

The image display device and its teletext implementation method according to an embodiment of the present invention can improve the disadvantages of the conventional method of outputting voice information of a corresponding channel regardless of a user's intention when executing a teletext function on a specific channel. Since the background music of the teletext information can be set in this manner, the user's satisfaction can be improved.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of other inventive inventions or the scope of the present invention can be easily made by adding, changing, or deleting other elements. I can suggest.

The term used in the present invention is selected as a general term widely used as possible at present, but in certain cases there is also a term arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, the name of a simple term It should be clear that the present invention is to be understood as a meaning of terms.

2 is a block diagram illustrating a configuration of an image display device according to an exemplary embodiment of the present invention, FIG. 3 is a diagram illustrating a background music setting method according to an exemplary embodiment of the present invention, and FIG. 4 is an exemplary embodiment of the present invention. 1 is a flowchart illustrating a method of implementing teletext of an image display device according to an embodiment.

As shown in FIG. 2, the image display device according to an exemplary embodiment of the present invention may include a broadcast receiver 10 receiving a broadcast signal input from the outside and teletext information from the broadcast signal received from the broadcast receiver 10. A teletext processor 20 for detecting and signal processing the signal, an image processor 30 for processing the teletext information signaled by the teletext processor 20 to be displayed, and a signal processor from the image processor 30. And a display unit 40 for displaying the teletext information, a memory unit 50 for storing the background music information to be output at the time when the teletext information is displayed, and a display of the detected teletext information. The controller 60 controls the preset voice information to be output as background music of the displayed teletext information. It is configured to include.

Referring to the operation of the video display device according to an embodiment of the present invention configured as described above are as follows.

First, when a power-on command is input from the outside, the control unit 60 outputs a control signal to receive a broadcast signal of a channel selected by the user through the broadcast receiving unit 10.

Then, the broadcast receiving unit 10 receives the broadcast signal of the channel selected by the user according to the control signal of the control unit 60 and outputs the video signal and the audio signal.

The video signal output through the broadcast receiver 10 is signal-processed through the image processor 30 and then displayed on the display 40.

In this case, the image processor 30 includes an MPEG-2 decoder and a scaler for converting the video data to match the vertical frequency, resolution, aspect ratio, etc., according to the output standard of the display 31.

In addition, the display unit 40 may be applied to various types of display modules such as digital light processing (DLP), liquid crystal display (LCD), plasma display panel (PDP), and the like.

The teletext processor 20 extracts the teletext information from the broadcast signal received through the broadcast receiver 10 and processes the signal.

That is, the teletext processor 20 extracts and outputs teletext data from the composite video signal CVBS.

After processing the teletext data, the teletext data is converted into a database, stored in a separate storage medium, and the teletext data stored in the storage medium is read and output according to a teletext display command.

To this end, the teletext processing unit 20 includes a decoding module for decoding and outputting the extracted teletext data, a database construction module for constructing a teletext database, and a control command output from the controller in response to a user command input. And a teletext data output module that reads the teletext data from the teletext database and outputs it to the image processing unit in order to construct a requested output screen according to the output of the control command processing module. .

If the teletext information is included in the received broadcast signal according to a user's request, the controller 60 controls the teletext information to be displayed and extracts voice information to be output while the teletext information is displayed. do.

That is, the user may set the background music desired by the user when using the teletext information function.

In other words, when executing the teletext function, voice information of the corresponding channel including the teletext information is output regardless of the user's intention.

However, when the teletext information is used, the user is not watching a broadcast program of the channel. Accordingly, when the voice information of the channel is output, the user is inconvenient to use the teletext information. Is set to 0 and you are using the teletext function.

Accordingly, in the image display device according to an embodiment of the present invention, in order to improve user satisfaction when using the teletext function, the user may set voice information to be output as background music of the teletext information when the teletext information is displayed. do.

Here, the voice information that can be set as the background music may be voice information or a music file of a specific file stored in a DVR storage medium, or may be a music file stored in a USB or other external storage medium, and the current user. May be voice information of other channels except for the channel being watched, or may be voice information of other input modes (AV, RGB, component, HDMI) except the current input mode.

That is, as illustrated in FIG. 3, the user may set voice information to be output as background music when the teletext function is executed using the background music setting screen.

In other words, first, a specific path in which voice information to be set as the background music exists among a storage medium, an input mode, and a broadcasting channel is selected, and when the user selects the storage medium, the storage medium (internal storage medium, external storage medium) is selected. And select a specific storage medium in which the voice information to be set as the background music is stored.

When the selected storage medium is selected, a file of a type that can be set as the background music among the files stored in the storage medium is displayed, and the user selectively checks only the desired voice information among the displayed files. You can set the text background music.

In addition, the voice information set as the teletext background music as described above is stored in the memory unit 50.

Accordingly, when a teletext function execution command is input from the outside, the controller 60 determines whether there is voice information set as teletext background music in the memory unit 50, and accordingly the teletext information is stored. Controls the audio information output in the displayed state.

That is, when the voice information set as the teletext background music exists, the controller 60 extracts the file from the storage medium in which the voice information set as the background music is stored or switches to the corresponding external input mode or channel. Receive voice information to be output as the background music.

In addition, the controller 60 controls the output of the extracted voice information or the received voice information and blocks the output of the voice signal of the corresponding channel including the teletext information.

In addition, when there is no voice information set as the teletext background music, the controller 60 controls to output a voice signal of a corresponding channel including the teletext information as a default.

As described above, the image display device according to the embodiment of the present invention can improve the disadvantage of the conventional method in which the voice information of the corresponding channel is output regardless of the user's intention when the teletext function is executed in a specific channel. Since the background music of the information can be set, the user's satisfaction can be improved.

Teletext implementation method of the image display device according to an embodiment of the present invention configured as described above, as shown in Figure 4, first to set the background music to be output when the teletext function (S10). That is, it can be voice information or music file of a specific file stored in DVR storage media, and also music file stored in USB and other external storage media, voice information of other channels except the channel currently being watched by user, except current input mode. The background music to be output when the teletext function is executed is set from at least one type of voice information among voice information of other input modes (AV, RGB, component, HDMI).

Subsequently, a request signal for executing the teletext function is received from the outside (S20).

As a request signal for executing the teletext function is received, it is determined whether teletext information exists in a channel that the user is currently watching (S30).

Subsequently, when the teletext information exists in the channel that the user is watching, it is determined whether the preset teletext background music exists (S40).

In operation S50, when the preset teletext background music exists, corresponding voice information set as the background music is extracted (S50).

Subsequently, the voice information output of the corresponding channel in which the teletext information exists is blocked (S60).

Then, the extracted voice information is output (S70).

In addition, if the preset teletext background music does not exist, the determination result (S40) outputs voice information of a corresponding channel where the teletext information exists by default (S80).

As described above, the teletext implementation method of an image display device according to an exemplary embodiment of the present invention may improve the disadvantage of the conventional method of outputting audio information of a corresponding channel regardless of the user's intention when executing a teletext function on a specific channel. In addition, since the background music of the teletext information can be set in various ways, the user's satisfaction can be improved.

1 is a diagram for explaining an example in which teletext information is carried on a VBI section of a general CVBS signal.

2 is a block diagram illustrating a configuration of an image display device according to an exemplary embodiment of the present invention.

3 is a view for explaining a background music setting method according to an embodiment of the present invention.

4 is a flowchart for explaining a method of implementing teletext of an image display device according to an exemplary embodiment of the present invention.

<< Explanation of symbols for main part of drawing >>

10: broadcast receiving unit 20: teletext processing unit

30: image processing unit 40: display unit

50: memory unit 60: control unit

Claims (8)

A broadcast receiver for receiving a broadcast signal input from the outside; A teletext processor for detecting and processing teletext information from the broadcast signal received from the broadcast receiver; An image processor configured to display teletext information signaled from the teletext processor; A display unit which displays the teletext information processed by the image processor; And, And a controller configured to control to output specific voice information to the background music of the teletext information when a teletext execution command is input from the outside, according to whether a preset teletext background music exists. The method of claim 1, And a memory unit configured to store background music information to be output when the teletext information is displayed. 3. The method of claim 2, The background music information includes at least one of voice information stored in an internal storage medium, voice information stored in an external storage medium, voice information of another external input mode, and voice information of another channel. The method of claim 3, And the controller extracts and outputs voice information set as the background music when the teletext is executed, and blocks the output of the voice information of the channel including the teletext information. Detecting teletext information from the received broadcast signal; Displaying the detected teletext information; Determining whether a preset teletext background music exists; And, And providing specific voice information as the background music of the teletext information according to the presence of the teletext background music. The method of claim 5, And setting background music information to be output when the teletext information is displayed. The method of claim 6. The setting of the background music information Setting at least one voice information of voice information stored in an internal storage medium, voice information stored in an external storage medium, voice information of another external input mode, and voice information of another channel as background music of the teletext information. Teletext implementation method of an image display device. The method of claim 5, Providing as background music of the teletext information Blocking the voice information output of the channel including the teletext information; Teletext implementation method of the video display device comprising the step of outputting the extracted voice information.

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