KR19990051271A - How to Display Selective Subtitles on a Video Cassette Recorder - Google Patents

Abstract

The present invention relates to a selective caption display method of a video cassette recorder for selectively displaying different types of captions with respect to a predetermined screen among captions displayed on the screen.

The present invention provides a subtitle display key of a native language when a signal for a native language subtitle display key is provided during program reproduction to display another type of subtitle, for example, a native language subtitle, for a predetermined screen among programs to be reproduced. The caption address of the reproduced screen and the character position data of the caption address are stored.

As described above, when the data for the predetermined screen is stored and then operated in the play mode again, the data for the predetermined screen, that is, whether to store data for the predetermined screen to display different types of subtitles or not, is stored on the predetermined screen. If the data is stored, the playback operation is continued. When a predetermined screen having the stored caption address and character position data of the caption address is played, the subtitles (English subtitles) displayed on the screen and other types of subtitles (Korean subtitles) ) Is displayed on the screen.

As described above, the present invention can selectively display subtitles on the screen, thereby enabling efficient language learning.

Description

How to Display Selective Subtitles on a Video Cassette Recorder

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video cassette recorder having a caption function, and more particularly, to a method of displaying a subtitle of a video cassette recorder for displaying a subtitle of a predetermined screen among other subtitles displayed on the screen. It is about.

As is well known, according to the development of electronic technology, a video cassette recorder has a built-in caption IC for capturing a voice signal and an OSD IC for displaying a user's motion control command applied through key metrics on a screen in text form. have.

Therefore, the interlaced scanning (NTSC method) is performed so that the audio signal of the program recorded on the magnetic tape can be displayed on the caption of the screen, and the vertical blanking period in which the electron beam rotates up from the bottom of the screen, that is, the 21st horizontal after the vertical synchronization signal. In the period of the synchronization signal, two characters per horizontal synchronization signal are possible, and the division of one sentence is carried on the television receiver carrying caption data turned on / off by the start signal and the end signal.

Then, the television detects the caption data carried in the vertical blanking section and displays the OSD by processing the OSD on a predetermined position of the screen to allow normal hearing as well as ordinary viewers to watch the television.

As described above, when the caption on key is pressed by the user to display the caption data carried on the vertical blanking interval on the screen, the caption IC detects the caption data and provides the caption data to the OSD IC. OSD processing is provided to the monitor.

On the other hand, when the caption on key is not pressed by the user and the caption off key is pressed, the caption IC is passed, so the caption is not displayed on the screen.

Therefore, when the user wants to study a language, that is, to display the subtitles on the screen, press the caption on key, and the caption character is not displayed on the screen, and the original sound, that is, the foreign language, is pressed by pressing the caption off key. Not to display.

However, the caption function in the related art has only a function of displaying or not displaying subtitles on the screen as described above, and has no function of displaying other subtitles for a predetermined screen during the subtitle screen display.

For example, while displaying English subtitles on a screen, other subtitles, for example, Korean subtitles, cannot be displayed on a screen.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to provide a method for displaying a selective caption of a video cassette recorder for selectively displaying different captions for a predetermined screen among caption display on a screen. There is.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a subtitle display method of a video cassette recorder in which a subtitle of a predetermined screen is displayed as another subtitle during subtitle display in a video cassette recorder having a subtitle display (caption) function. A first step of setting a predetermined screen on which a subtitle of a type different from the currently displayed subtitle is displayed; And a second process of displaying the predetermined screen on the screen in a different type of subtitle when the predetermined screen set by the first process is played back.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a block diagram showing a configuration of hardware to which the present invention is applied;

2 is a flowchart illustrating a process for selectively displaying subtitles in a video cassette recorder according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: key metrics 20: micom

30: memory 40: caption signal detector

50: first caption signal processor 60: second caption signal processor

70: OSD unit

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

1 is a block diagram showing a configuration of an optional caption display device of a video cassette recorder according to the present invention, which includes a key matrix 10, a microcomputer 20, a memory 30, a caption signal detector 40, and a first caption signal. The processor 50 includes a second caption signal processor 60 and an OSD (on screen display) 70.

A detailed description of the operation of the selective caption display apparatus of the video cassette recorder according to the present invention configured as described above is as follows.

The key metrics 10 are configured to provide the microcomputer 20 with a plurality of key signals pressed by the user.

At this time, if a signal for the playback key is provided from the user through the key metrics 10, the microcomputer 20 provides an operation control signal for performing the playback operation to reproduce the video signal recorded on the magnetic tape.

In addition, the caption signal detector 40 detects whether a caption signal is loaded in the vertical blanking section while performing the above-described reproducing operation, and provides the caption signal detection result to the microcomputer 20, and the detected caption signal is set to the second. 1 caption signal processing unit 50 is provided.

That is, when the caption signal detection result signal is provided from the caption signal detector 40 to the microcomputer 20, the microcomputer 20 may process the caption signal provided from the caption signal detector 40 by the first caption signal processor 50. The first caption signal processing unit 50 is controlled to be able to do so.

Accordingly, the first caption signal processor 50 decodes the caption signal provided from the caption signal detector 40 under the control of the microcomputer 20 and provides the caption signal to the OSD unit 70. The caption data provided from the caption signal processor 50 is OSD-processed and provided to the monitor.

As described above, the microcomputer 20 displays an optional subtitle (native language subtitle) display key according to the present invention from the key matrix 10 while displaying the subtitle of the audio signal according to the program reproduction. When a signal for a key is input, the memory 30 provides the caption address and the character position data of the caption address, that is, the position data of the screen on which the caption character is displayed, to the memory 30.

Therefore, the memory 30 stores the caption address and the character position data of the caption address provided by the microcomputer 20, and reads out the data stored in the read request of the microcomputer 20 as can be seen in the following description. To provide to the microcomputer (20).

Meanwhile, as described above, the microcomputer 30 sets a predetermined screen for displaying a native language subtitle, and when a key signal for performing a playback operation is provided again through the key metrics 10, the caption address and character position for the predetermined screen are displayed. It is determined whether the memory 30 is stored in the data.

That is, if the caption address and the character position data of the predetermined screen are stored in the memory 30, the microcomputer 30 stops the operation of the first caption signal processing unit 50 and reproduces the second caption signal when the predetermined screen is reproduced. The processor 60 causes the subtitles to be displayed on the predetermined screen.

Specifically, if the screen having the caption address and the character position data stored in the memory 30 is reproduced during the reproducing operation, the microcomputer 30 stops the operation of the first caption signal processing unit 50. The caption signal processing unit 60 is controlled to provide the OSD unit 70 with caption data processed by the second caption signal processing unit 60, for example, national language caption data.

Accordingly, the second caption signal processing unit 60 displays the native language caption data so that the screen having the caption address and the character position data stored in the memory 30 can be displayed as the native language caption under the control of the microcomputer 20. In operation 70, the OSD unit 70 processes the native language caption data provided by the second caption signal processing unit 60 to the monitor.

2 is a flowchart for performing a selective caption display method of a video cassette recorder according to the present invention, which will be described in detail with reference to the block diagram shown in FIG.

Here, FIG. 2A is a flowchart illustrating a process of setting a predetermined screen for displaying a subtitle of a type different from the currently displayed subtitle during subtitle display, and FIG. 2B illustrates a predetermined screen when the predetermined screen set by FIG. 2A is played back. This is a flowchart of the process of displaying on the screen with different types of subtitles.

First, a process for setting a predetermined screen for displaying a subtitle of a type different from the currently displayed subtitle is as follows.

If the deck not shown in operation 200 is operating in the playback mode, the microcomputer 20 proceeds to operation 201 and the optional caption for displaying subtitles different from the currently displayed subtitles through the key metrics 10 ( It is determined whether a signal is input to a display key of a native language subtitle.

As a result of the determination, when a signal for the national language caption display key is input from the key metrics 10, the microcomputer 20 proceeds to step 202 to determine the caption address and the caption address of the screen played when the national language caption display key is input. The character position data is stored in the memory 30.

When the screen is set to display the native language subtitles as described above, the native language subtitle display process for the setting screen is as follows.

That is, in operation 250, the microcomputer 20 determines whether the current operation mode is the playback mode, and if the playback mode is the playback mode, the microcomputer 20 proceeds to step 251. It is determined whether caption address and character position data for the screen are stored.

As a result of the determination, if the caption address and the character position data of the predetermined screen for displaying different types of subtitles are stored in the memory 30, the caption address and the character position stored in the memory 30 of the screen to be played back in step 252 are stored. It is detected whether a screen with data is reproduced.

That is, when the screen having the caption address and the character position data stored in the memory 30 is reproduced, the microcomputer 20 proceeds to step 253 to stop the operation of the first caption signal processing unit 50 and the second caption signal processing unit. The caption data provided at 60 can be displayed on a screen currently being reproduced, that is, a screen having caption address and character position data stored in the memory 30.

Accordingly, the second caption signal processor 60 provides the caption data to the OSD unit 70 under the control of the microcomputer 20, and the OSD unit 70 is different from the captions displayed so far with respect to the current playback screen. Subtitles can be displayed on the screen by providing subtitles to the monitor.

In the present invention, the second caption signal processor 60 is used as the native language caption to display the selective caption as the native language subtitle. However, the selective caption may vary depending on what kind of caption the user sets. For example, in the present invention, when the currently displayed subtitle is in English, the subtitles of the second foreign language which are different from the currently displayed subtitles in the native language can be displayed on the screen. You can learn.

As described above, the selective caption display method of the video cassette recorder according to the present invention includes a caption address and a caption of a screen that is reproduced when a native caption display key is provided when a signal for the native caption display key is provided during program playback. After saving the character location data of the address, if the player enters the playback mode again, it is determined whether to save the caption address for the screen where the native language subtitle is to be displayed and whether or not the character location data of the caption address is to be saved. If the data is stored, the playback operation is continued. When a screen with the saved caption address and character position data of the caption address is played, the subtitles are selectively displayed on the screen by displaying different types of subtitles on the screen. There is an effect that you can do efficient language learning.

While the invention has been shown and described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various modifications, changes and omissions can be made without departing from the spirit and scope of the invention.

Claims (2)

In a video cassette recorder having a caption display (caption) function, a subtitle of a predetermined screen during subtitle display is displayed as another subtitle. A first step of setting a predetermined screen for displaying subtitles different from the currently displayed subtitles among the subtitles being displayed; And a second process of displaying the predetermined screen on the screen as a different type of subtitle when the predetermined screen set by the first process is played back. The method of claim 1, wherein the first process comprises: A first step of determining whether a signal is input to the selective caption display key during playback; And a second step of storing a caption address for the screen played when the selective caption display key is input and character position data of the caption address when the signal for the selective caption display key is input as a result of the first step. , The second process, A first step of determining whether a caption address for a predetermined screen for displaying selective captions and character position data of the caption address is to be stored if the current operation mode is a reproduction mode; As a result of the first step, if the caption address for the predetermined screen for displaying the selective caption and the character position data of the caption address are stored, the screen having the caption address and the character position data for the predetermined screen is reproduced. Detecting a second step; And as a result of the second step, when the screen having the caption address and the character position data of the predetermined screen of the playback screen is played back, displaying a subtitle of the playback screen as another type of subtitle selected. Subtitle display method of a video cassette recorder.