KR100654024B1 - How to adjust the playback time of video subtitles - Google Patents

Abstract

The present invention provides a method for adjusting a play time of a video subtitle, which enables a user to arbitrarily adjust a play time for a video subtitle of a plurality of languages. To this end, the present invention provides a method of sequentially playing two or more video subtitles from a video recording medium, wherein the playback time of the first subtitle and the second subtitle are controlled by the user's control operation. And sequentially displaying the first subtitle and the second subtitle on the screen according to the adjusted time of the adjustment.

Description

How to adjust the playback time of video subtitles {VIDEO CAPTION DATA DISPLAY TIME REGULATING METHOD}

1 is a diagram showing the configuration of a disc reproducing apparatus to which a reproduction time adjusting method of video subtitles according to the present invention is applied;

FIG. 2 is a table illustrating search information of caption data for adjusting a playback time for video captions of a plurality of languages according to the present invention;

3 is a view showing a form of a subtitle display menu for adjusting a play time for a video subtitle of a plurality of languages according to the present invention;

4A and 4B are diagrams exemplarily illustrating a state in which a play time of a video subtitle is adjusted according to an adjustment state of a video subtitle of a plurality of languages on a subtitle display menu according to the present invention.

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

10: optical disc, 11: optical pickup,

12: RF signal processing unit, 13: digital signal processing unit,

14: video decoder, 15: audio decoder,

16: subtitle decoder, 17: signal synthesis section,

18: spindle motor, 19: sled motor,

20: servo part, 21: motor drive part,

22: microcomputer, 23: memory,

24: OSD generation unit.

The present invention relates to a method for adjusting the playing time of video subtitles, and more particularly, to a method for adjusting the playing time of video subtitles so that a user can arbitrarily adjust the playing time for a video subtitle of a plurality of languages played back from an optical disc. .

In general, in an optical disc device such as a DVD player, a display such as a television is read by reading out video and audio data recorded on a digital versatile disc, which is a high-density recording medium, and processing the signal into digital video and audio signals. It is possible to play high quality / high quality through the screen device.

The DVD has additional caption data for video playback of the hearing impaired, and can be used for the purpose of language learning by adding subtitles in multiple languages. Such caption data is recorded on the DVD. In the recorded video data stream and recorded.

Accordingly, the optical disc apparatus can read out and reproduce the video and audio data streams recorded on the DVD, and extract caption data included in the video data stream to be reproduced on the display screen together with the image of the video data.

On the other hand, in the case of video subtitles supporting at least two or more languages for language learning purposes, different subtitle data having respective languages may be displayed separately according to a predetermined time or simultaneously displayed in each subtitle area. By implementing the functions, language learning is made more efficient.

However, in the method of playing video subtitles supporting a plurality of languages, each video subtitle is fixedly displayed alternately at a predetermined time interval set in the set of the optical disk device or the DVD itself. In this other state, it is possible to display subtitles irrespective of the intention of the learner, which makes it difficult to learn a language more smoothly.

Accordingly, the present invention has been made to solve the above-mentioned conventional problem, and an object thereof is to provide a method for adjusting a play time of a video subtitle, which enables a user to arbitrarily adjust a play time for a video subtitle of a plurality of languages.

In order to achieve the above object, according to the present invention, in a method of sequentially playing two or more video subtitles from a video recording medium, the reproduction time of the first subtitle and the reproduction time of the second subtitle are changed by a user's adjusting operation. The present invention provides a method for adjusting a play time of a video subtitle, comprising: adjusting a play time by adjusting the play time, and sequentially displaying the first and second subtitles on the screen according to the adjusted play time.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 1 is a diagram illustrating a configuration of a disc reproducing apparatus to which a method for controlling reproduction time of video subtitles according to the present invention is applied.

As shown in Fig. 1, a disc reproducing apparatus to which the present invention is applied includes an optical pickup 11 for reading and reproducing video and audio data streams recorded on an optical disc 10, and reading from the optical pickup 11; RF signal processing unit 12 for filtering the signal from the optical disk 10 into a binary format and outputting it as a binary signal, digital signal processing unit 13 for digitally processing the binary signal reproduced from the optical disk 10, and the video data. The video decoder 14 decodes and restores the original video data, and outputs the audio decoder 15. The audio decoder 15 decodes the audio data, restores and outputs the original audio data, and decodes the caption data included in the video data stream. Output subtitle decoder 16, video data from the video decoder 14 and subtitle data from the subtitle decoder 16. A focusing / tracking servo of the optical pickup 11 and an optical disc 10 by a signal synthesizer 17 for generating and outputting the signal, and a focusing error signal FE and a tracking error signal TE from the optical pickup 11. Servo unit 20 for controlling the rotational drive of the motor, motor drive unit 21 for controlling the rotation of the spindle motor 18 and the sled motor 19 by the servo operation of the servo unit 20, the user's key input The video for the subtitle data of the multi-language read out through the microcomputer 22 and the subtitle decoder 16 for controlling the output time of the subtitle data of the multi-language of the optical disc 10 according to the control. A memory 23 in which information capable of searching for a recording position of the data stream, that is, a presentation time stamp (PTS) (or recording position information (Address)) is stored, and a reproduction time for subtitle data of a plurality of languages; Subtitle to adjust the And displaying the play menu consists of OSD generator 24.

The reproduction time information of the caption data stored in the memory 23 may be separately stored as a recording unit having a predetermined recording size, for example, an entry of caption data having temporal continuity (Caption_Data_Entry) as shown in FIG. And having the start reproduction time information (Start_PTS) of each entry as search information for each subtitle data entry, and the first subtitle data of each subtitle data entry is stored as a value corresponding to the reproduction time information of the recorded video data stream. .

When the playback time for the subtitles of a plurality of languages is arbitrarily adjusted and set by the user, the microcomputer 22 searches for the start playback time information of the subtitle data entry of the optical disc 10 on which the subtitle data is recorded, and starts the corresponding. By searching the recording position of the video data stream in which the reproduction time information is recorded, the output time of the subtitle data for each language extracted from the subtitle decoder 16 is adjusted in accordance with the user setting state.

In addition, when the microcomputer 22 intends to arbitrarily adjust the playback time for the caption data of a plurality of languages by a user key input, as shown in FIG. 3, when the caption data is composed of two languages, A subtitle display menu 30 for adjusting the playback time, a first language subtitle area 31 in which subtitles of the first language are displayed, and a second language subtitle area 32 in which subtitles of the second language are displayed.

The subtitle display menu 30 includes a first language controller 33 for adjusting a reproduction time of a first language subtitle, a second language controller 34 for adjusting a reproduction time of a second language subtitle, and a first language. A first language blank switching unit 35 for turning on / off a subtitle blanking, and a second language blank switching unit 36 for turning on / off a second language subtitle blanking. The first and second language adjusting units 33 and 34 are configured to adjust the percentage (%) of the playing time by adjusting the movement of the bar, and the first language adjusting unit 33 of the first language adjusting unit 33 The second language adjusting unit 34 is linked to the bar control so that the second language adjusting unit 34 can be adjusted. Automatically moved to the position of%).

In the present invention made as described above, the first language control unit 33 in a state in which the first and second language blank switching units 35 and 36 on the subtitle display menu 30 are respectively set to an off state. ) To 100%, the second language controller 34 automatically adjusts to 0% so that the subtitle of the first language is played only in the subtitle area 31 of the first language, and the second language The subtitle area 32 does not reproduce the subtitle of the second language.

On the other hand, the first language control unit 33 is set to 30 in a state where the first and second language blank switching units 35 and 36 on the subtitle display menu 30 are set to Off, respectively. Adjusting to% (or adjusting the second language control unit 34 to 70%) corresponds to 30% of the first language subtitle area 31 of the total playing time during which the first and second language subtitles are played. The first language subtitles are reproduced at the playing time, and the second language subtitles are played at the playing time corresponding to 70% of the rest.

On the other hand, to enable the first and second language subtitles 31 and 32 to be reproduced in each of the first and second language subtitle areas 31 and 32, the active state of the subtitle display menu 30 may be turned off.

On the other hand, the present invention is not limited to the above-described typical preferred embodiments, but can be carried out in various ways without departing from the gist of the present invention, various modifications, alterations, substitutions or additions are common in the art Those who have knowledge will easily understand. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described above, according to the present invention, as the user can arbitrarily adjust the play time of the video subtitles of a plurality of languages played on the optical disc in the disc reproducing apparatus, the users having different learning levels can have their own levels. According to the present invention, it is possible to arbitrarily reproduce subtitles of a plurality of languages, thereby making it possible to perform a more efficient language learning function.

Claims (6)

In the method of sequentially playing two or more video subtitles from a video recording medium, A first step in which the playback time of the first subtitle and the playback time of the second subtitle are adjusted by the user's adjustment operation; And a second step of sequentially displaying the first subtitle and the second subtitle on the screen according to the adjusted time of the subtitle. The method of claim 1, The method of claim 1, wherein the first and second subtitles are controlled such that the playback time between each subtitle is interlocked with each other. The method of claim 1, In the first step, the first and second subtitles are reproduced by adjusting the playback time percentage (%) by the adjustment of the adjustment bar (Bar) on the display screen of the subtitle display menu. How to adjust the time. The method of claim 2 or 3, If the playback time of the first subtitle is set to 50% or less of the total playback time, The playback time of the second subtitle is set to 50% or more of the total playback time. The method of claim 4, wherein And the total playback time is equal to one time playback time of the normal playback time. The method of claim 4, wherein The reduction or increase rate of the reproduction time of the first subtitle is the same as the increase or decrease rate of the reproduction time of the second subtitle.

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