KR200283493Y1 - Caption handling system of Digital Versatile Disk player - Google Patents

Abstract

The present invention relates to a caption processing apparatus of a DVD player, detects closed caption data included in a video signal, and stores the caption data in the RAM of the memory unit, and stores the caption data input through the caption input unit in the RAM of the memory unit, Compare and determine the closed caption data stored in the RAM and RAM to match the synchronization signal, and convert the subtitles into character fonts stored in the ROM of the memory unit to display the subtitles in various languages not conveniently included in the DVD. Can be displayed as subtitles.

Also, the subtitle data input through the subtitle input / output unit is stored in the RAM of the memory unit, and then compared / determined with the reproduction time data of the video signal input through the reproduction time input unit, and when the synchronization signal of the reproduction time data matches, By converting and displaying the captions by using the character font stored in the display, the captions can be displayed in various languages even when the closed caption data is not included in the video signal.

Description

Caption handling system of Digital Versatile Disk player

The present invention relates to a subtitle processing apparatus for a DVD player, and more particularly, to a subtitle processing apparatus for a DVD player for displaying subtitles in various languages on a screen regardless of the DVD title and the area code set in the DVD player. will be.

In general, DVD titles have the same appearance as audio CDs or video CDs, but have a storage capacity of at least seven times that of video CDs, making them the next generation recording media. They can hold up to eight hours of video data and up to eight It can support Korean language voice and can process 32 subtitles.

In particular, DVD titles produced in the United States include closed caption data, which are usually made for the deaf and hard of hearing, are hidden and normally displayed on the screen by a decoding device.

In addition to the DVD title, the DVD player can play not only a conventional music CD but also a video CD.

On the other hand, if a DVD title and a DVD title are released at the same time as the movie is released, the DVD title and DVD player may not be played in other countries. For the purpose, the area code is divided by the world market by region.

For example, the region code is set to No. 1 in North America, such as the United States, No. 2 in Japan and Europe, and No. 3 in Korea and Southeast Asia.

In recent years, technology such as 'Code Free', which can play DVD titles in all regions, can be played even when the region number of the DVD title and the DVD player do not match.

However, since the DVD title contains subtitles only for specific languages corresponding to the region code, if you want to play the DVD title in another region where the region code is different, the subtitles cannot be displayed on the screen in another region. There was a problem that is uncomfortable.

The present invention has been made in view of the above-described problems, and its purpose is to synchronize the caption data contained in the video signal of the DVD title, the audio signal of the person included in the audio signal, or the playback time of the DVD title. It is designed to display subtitles that are not included in DVD titles produced elsewhere more conveniently and efficiently.

1 is a block diagram showing a caption processing apparatus using a video signal according to an embodiment of the present invention.

2 is a block diagram showing a caption processing apparatus using a voice signal according to another embodiment of the present invention.

3 is a block diagram illustrating a caption processing apparatus using a reproduction time of a video signal according to another embodiment of the present invention.

4 is a flowchart illustrating a method of generating caption data input through a caption input unit of the present invention using a video signal.

5 is a flowchart illustrating a method of generating caption data input through a caption input unit of the present invention using a DVD playback time.

6 is a flowchart illustrating a method of generating caption data input through a caption input unit of the present invention using a voice signal.

7 is a flowchart illustrating a caption processing method according to an embodiment of the present invention.

8 is a flowchart illustrating a subtitle processing method using a reproduction time of a video signal according to another embodiment of the present invention.

9 is a flowchart illustrating a subtitle processing method using an audio signal according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10 signal processing unit 11 video signal input unit

12: signal analysis unit 13: audio signal input unit

14 decoder 15 playback time input unit

20: subtitle input and output unit 30: memory unit

31: SRAM 32: ROM

33: RAM 40: Timer

50: control unit 60: output unit

Configuration of the present invention for achieving the above object is made as follows.

In the subtitle device for displaying a subtitle on the screen,

A video signal input unit connected to a video signal output terminal of a DVD player or the like for inputting a video signal including closed caption data, and an image signal output from the video signal input unit are analyzed to extract a horizontal synchronous signal. A signal processor configured to form a signal analyzer configured to detect closed caption data from the signal;

A subtitle input / output unit for inputting / outputting subtitle data prepared in advance in a language of a designated country;

SRAM temporarily storing the hexa value of the closed caption data extracted by the signal analysis unit of the signal processing unit, an operating device that initializes the system and performs basic input / output processing, and is used basically when outputting character information from the system. A memory unit having a ROM for storing a system program such as a font, a subtitle data applied from the subtitle input / output unit, and a RAM for storing various data generated during operation;

A timer that operates at a predetermined time set by a video signal input through the video signal input unit of the signal processor, and indicates a DVD playback time in units of hours, minutes, seconds, and the like;

A control unit for controlling the overall operation for outputting a closed caption signal when the synchronization signal has the same value by comparing the closed caption data stored in the RAM of the memory unit with the closed caption data stored in the RAM of the memory unit; Wow;

And an output unit for outputting a caption signal applied from the controller to an external display device.

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings in detail as follows.

1 is a block diagram showing a caption processing apparatus using a video signal according to an embodiment of the present invention.

Referring to FIG. 1, the caption processing apparatus of the present invention includes a signal processing unit 10, a caption input / output unit 20, a memory unit 30, a timer 40, a controller 50, and an output unit ( Consisting of 60).

The signal processing unit 10 is connected to the DVD player and compares / analyzes various signals inputted to extract and convert a signal necessary for subtitle processing, and is connected to the video signal output terminal of the DVD player and includes closed caption data. A video signal input unit 11 for inputting a video signal and a video signal output from the video signal input unit 11 are analyzed to extract a horizontal synchronization signal, and an ASCII code value of the closed caption data is extracted from the horizontal synchronization signal. It consists of a signal analysis unit 12 for converting to hexa value.

For example, the closed caption data is mainly developed for the deaf or hearing impaired, and is normally hidden and displayed as a subtitle through a decoder device. The closed caption data is generally included in the 21st line of the horizontal scan signal.

The caption input / output unit 20 inputs and outputs caption data previously prepared in a language of a designated country according to the hexa value of the closed caption data included in the video signal.

As the subtitle input / output unit 20, a floppy disk drive capable of reading / writing data is used. In addition, a PC serial / parallel port capable of transmitting and receiving data in serial or parallel, a USB port, a wired / wireless LAN card capable of wired / wireless data communication, etc. may be used. Can be.

For example, when the user inserts a recording medium such as a floppy disk or a stick memory, the subtitle input / output unit 20 stores the subtitle data on the recording medium, or reproduces the stored subtitle data and directly / parallel. Send and receive subtitle data through the port, USB port and wired / wireless LAN card.

The memory unit 30 stores various data extracted from the signal analysis unit 12 of the signal processing unit 10 and various data necessary for operating the system, and stores the closed caption data extracted from the signal analysis unit 12. Systems such as SRAM (SRAM) 31, which temporarily stores hexadecimal values, an operating device that initializes the system and handles basic I / O processing, and a font that is basically used when outputting character information from the system. ROM (ROM) in which a program is stored, subtitle data applied from the subtitle input / output unit 20, and RAM (RAM) 33 for storing various data generated during operation.

The timer 40 operates at a predetermined time set by a video signal input through the video signal input unit 11 of the signal processing unit 10, and represents a DVD playback time in units of hours, minutes, seconds, and the like. The control unit 50 compares the closed caption data stored in the SRAM 31 of the memory unit 30 with the caption data stored in the RAM 33 of the memory unit 30. If has the same value, controls the overall operation for outputting the subtitle signal corresponding thereto.

For example, when the closed caption data displaying the caption in synchronization with the video signal and the synchronization signal of the caption data match, the caption translated into a specific language is displayed on the display device according to the font of the character font stored in the ROM. Output caption signals for display.

The output unit 60 outputs the caption signal applied from the controller 50 to the external display device to display the caption on the screen of the external display device.

2 is a block diagram showing a caption processing apparatus using a voice signal according to another embodiment of the present invention.

Referring to FIG. 2, the caption processing apparatus using the audio signal according to the present invention includes a signal processing unit 10, a caption input / output unit 20, a memory unit 30, a timer 40, and a controller as shown in FIG. 1. In the caption processing apparatus using a video signal consisting of 50 and the output unit 60, the signal processing unit 10 is an audio signal input unit 13, and a decoder 14 connected to the audio signal input unit 13 ) And a signal analyzer 12 connected to the decoder 14.

The audio signal input unit 13 is connected to an audio signal output terminal of a DVD player to input an audio signal.

The decoder 14 converts the digital audio signal of the audio signal input unit 13 into an analog audio signal and outputs the analog audio signal.

The signal analyzer 12 detects only a human voice part from the analog audio signal output from the decoder 14.

The memory unit 30 temporarily stores the voice data detected by the signal analysis unit 12 of the signal processing unit 10 in the SRAM 31 and stores the subtitle data applied by the subtitle input / output unit 20. Save to 33.

The controller 50 compares the voice data stored in the SRAM 31 of the memory unit 30 with the caption data stored in the RAM 33 of the memory unit 30 to have the same synchronization signal. In case of having a general control for controlling the corresponding subtitle signal.

3 is a block diagram illustrating a caption processing apparatus using a reproduction time of a video signal according to another embodiment of the present invention.

Referring to FIG. 3, the caption processing apparatus using the reproduction time of the video signal according to the present invention includes a signal processing unit 10, a caption input / output unit 20, a memory unit 30, and a timer 40 as shown in FIG. 1. And a caption processing apparatus using a video signal comprising a control unit 50 and an output unit 60, wherein the signal processing unit 10 is connected to a DVD player to output a reproduction time of a video signal to the control unit 50. And a reproduction time input section 15.

The reproduction time input unit 15 inputs the reproduction time of the video signal detected by the timer built in the DVD player.

For example, a timer built in the DVD player detects the playback time of the video signal included in the DVD title to indicate to the user the playback time of the DVD title.

The controller 50 compares the playback time input through the playback time input unit 15 of the signal processor 10 with the caption data stored in the RAM 33 of the memory unit 30, and has the same sync signal. In case of having a general control for controlling the corresponding subtitle signal.

4 is a flowchart illustrating a method of generating caption data input through a caption input unit of the present invention using a video signal.

Referring to FIG. 4, the controller 50 determines whether a video signal is input through the video signal input unit 11 of the signal processor 10 connected to a video signal output terminal such as a DVD player (S1).

In this case, when it is determined that the video signal is input, the signal analyzer 12 of the signal processor 10 extracts a horizontal synchronization signal from the video signal according to the control signal applied from the controller 50 (S2).

Subsequently, the controller 50 determines whether the closed caption data is included in the extracted horizontal synchronization signal (S3).

At this time, when it is determined that the closed caption data is not included in the horizontal synchronization signal, the controller 50 ends the caption data generation process using the video signal.

However, if it is determined that the closed caption data is included in the horizontal synchronizing signal, the controller 50 detects an ASCII code value of the closed caption data from the horizontal synchronizing signal, and then the SRAM 31 and the RAM 33 of the memory unit 30 are detected. Are stored in S4).

At this time, the controller 50 outputs the ASCII code value of the closed caption data stored in the RAM 33 to the outside through the subtitle input / output unit 20 and stores it in a storage medium such as a floppy disk or a memory stick (S5). To S6).

Thereafter, the closed caption data stored in a storage medium such as a floppy disk, a memory stick, or the like is input into a computer in which a caption generating program is embedded (S7).

Subtitles are obtained by combining the closed caption data and the characters translated into the language of the designated country so that the subtitles translated into the language of the designated country can be reproduced at the same period as the closed caption data using the subtitle generation program embedded in the computer. Generate data (S8).

Thereafter, the caption data is stored and stored in a storage medium such as a floppy disk or a memory stick through a peripheral device of the computer (S9).

Therefore, when the DVD title does not have a native language or subtitles embodied in a specific language, the user extracts the closed caption data included in the video signal output when the DVD title is reproduced, and the closed caption data and the local language or Subtitle data of DVD players can be displayed in various languages more conveniently by generating subtitle data combined with character data translated into specific languages.

5 is a flowchart illustrating a method of generating caption data input through a caption input unit of the present invention by using a reproduction time of a DVD title.

Referring to Fig. 5, a DVD title is inserted into a DVD player installed in a computer and played back (S11).

Subsequently, the video signal included in the DVD title is detected in units of hours, minutes, seconds, etc., using application programs such as a character generation program and a time detection program installed inside the computer to generate the play time data of the video signal. (S12).

At this time, the caption data reproduced at the same period as the time data is generated by combining the playback time data of the video signal with subtitles processed in a language of another country such as English or Japanese, and text data translated into a native language or a specific language. (S13).

Thereafter, the caption data is stored and stored in a storage medium such as a floppy disk or a memory stick through a peripheral device of the computer (S14).

6 is a flowchart illustrating a method of generating caption data input through a caption input unit of the present invention using a voice signal.

Referring to FIG. 6, the controller 50 determines whether an audio signal is input through an audio signal input unit 11 connected to an audio signal output terminal such as a DVD player (S21).

At this time, if it is determined that the audio signal is input, the decoder 14 converts the digital audio signal into an analog audio signal according to the control signal applied from the controller 50 (S22).

Subsequently, the signal analyzing unit 12 of the signal processing unit 10 extracts only the human voice part from the analog audio signal converted according to the control signal applied from the control unit 50, thereby estimating the SRAM 31 of the memory unit 30. ) And RAM 33 (S23 to S24).

At this time, the controller 50 outputs the voice data stored in the RAM 33 to the outside through the subtitle input / output unit 20 and stores them in a storage medium such as a floppy disk (S25 to S26).

Thereafter, the closed caption data stored in a storage medium such as a floppy disk is input to a computer in which a caption generating program is embedded (S27).

Subtitle data which combines the voice data and the characters translated into the language of the designated country so that the subtitle translated into the language of the designated country can be reproduced at the same period as the closed caption data using the subtitle generation program built in the computer. To generate (S28).

Thereafter, the caption data is stored and stored in a storage medium such as a floppy disk or a memory stick through a peripheral device of the computer (S29).

7 is a flowchart illustrating a subtitle processing method using a video signal according to an embodiment of the present invention.

Referring to FIG. 7, when the caption is reproduced in a local language or a specific language not included in the DVD, the controller 50 determines whether caption data using a video signal is input through the caption input / output unit 20 ( S31).

At this time, if the caption data is not input, the controller 50 waits for a predetermined time.

However, if it is determined that the caption data is input, the control unit 50 stores the caption data in the RAM 33 of the memory unit 30 (S32).

Thereafter, it is determined whether the video signal is input through the video signal input unit 11 of the signal processing unit 10 connected to the video output terminal of the DVD player (S33).

At this time, if it is determined that the video signal is not input through the video signal input unit 11, the controller 50 waits for a predetermined time.

However, when it is determined that the video signal is input through the video signal input unit 11, the controller 50 outputs a control signal to the signal analyzer 12 of the signal processor 10 to output a horizontal synchronous signal from the video signal. Extract (S34).

Subsequently, the controller 50 determines whether the closed caption data is included in the horizontal synchronization signal (S35).

At this time, if it is determined that the closed caption data is not included in the horizontal synchronization signal, the controller 50 ends all procedures.

However, if it is determined that the closed caption data is included in the horizontal synchronizing signal, the controller 50 detects an ASCII code value of the closed caption data from the horizontal synchronizing signal and stores the ASCII code value in the SRAM 31 of the memory unit 30 in real time. (S36).

Subsequently, the controller 50 searches the caption data stored in the RAM 33 of the memory unit 30 to determine whether there is caption data using a video signal combining the closed caption data and the text data included in the video signal. (S37).

At this time, if it is determined that the caption data does not exist, the controller 50 moves to S31 and receives the caption data again.

However, if it is determined that the caption data using the video signal exists, the controller 50 closes the caption data stored in the SRAM 31 of the memory unit 30 in real time, and the RAM 33 of the memory unit 30. It is determined whether or not the synchronization signal of the closed caption data stored in S is matched (S38).

At this time, if it is determined that the synchronization signal of the closed caption data stored in the RAM (31) and RAM 33 of the memory unit 30 does not match, the controller 50 is a predetermined time until the synchronization signal is matched. Wait for a while.

However, when it is determined that the synchronization signal of the closed caption data stored in the RAM 31 and the RAM 33 of the memory unit 30 matches, the character unit combined with the closed caption data is stored in the memory unit 30. The subtitle signal converted into the character font stored in the ROM 32 is output through the output unit 60 (S39).

Accordingly, the closed caption data included in the video signal is detected and stored in the SRAM 31 of the memory unit 30, and the caption data input through the caption input / output unit 20 is stored in the RAM ( 33) and then compare / determine the closed caption data stored in the SRAM 31 and the RAM 33 and stored in the ROM 32 of the memory unit 30 when the synchronization signals match. By converting and displaying subtitles with character fonts, it is possible to more conveniently display various languages not included in the DVD as subtitles.

8 is a flowchart illustrating a subtitle processing method using a reproduction time of a video signal according to another embodiment of the present invention.

Referring to FIG. 8, the controller 50 determines whether caption data using a video signal is input through the caption input / output unit 20 (S41).

At this time, if the caption data is not input, the controller 50 waits for a predetermined time.

However, if it is determined that the caption data is input, the controller 50 stores the caption data in the RAM 33 of the memory unit 30 (S42).

Thereafter, it is determined whether the play time data of the DVD player is input through the play time input unit 15 of the signal processor 10 connected to the DVD player (S43).

At this time, if it is determined that the play time data of the DVD player is input, the controller 50 searches for the caption data stored in the RAM 33 of the memory unit 30 and combines the play time data of the video signal with the character data. It is determined whether subtitle data exists (S44).

At this time, if it is determined that there is no caption data combining the play time data and the text data, the controller 50 moves to S41 and receives the caption data again.

However, if it is determined that there is subtitle data combining the play time data and the character data, the controller 50 controls the play time data of the DVD player input through the play time input unit 10 and the RAM 33 of the memory unit 30. In step S45, it is determined whether or not the synchronization signal of the reproduction time data stored in step S) is identical.

At this time, if it is determined that the synchronization signal of the reproduction time data of the DVD player and the reproduction time data stored in the RAM 33 of the memory unit 30 does not coincide, the control unit 50 controls the predetermined time until the synchronization signal matches. Wait for a while.

However, if it is determined that the synchronization signal of the reproduction time data stored in the RAM 33 of the memory unit 30 matches the reproduction time data of the DVD player, the character data combined with the reproduction time data is stored in the memory unit 30. The caption signal converted into the character font stored in the ROM 32 is output through the output unit 60 (S46).

Therefore, the subtitle data input through the subtitle input / output unit 20 is stored in the RAM 33 of the memory unit 30, and then the DVD player input through the reproduction time input unit 15 of the signal processing unit 10 is reproduced. When the synchronizing signal of the reproduction time data is matched / determined with the time data, the closed caption data is not included in the video signal by converting and displaying the subtitles using character fonts stored in the ROM 32 of the memory unit 30. If not, it can be displayed in subtitles in various languages.

On the other hand, if it is determined in step S43 that the play time of the DVD player is not input, the controller 50 determines whether an adjustment signal for matching the play time of the DVD player with the time of the timer 40 is input (S47). .

At this time, if it is determined that the control signal of the timer 40 is not input, the control unit 50 returns to S43 and waits for a predetermined time.

However, when it is determined that the control signal of the timer 40 is input, the controller 50 sets the timer 40 to match the playing time of the DVD player according to the input control signal (S48).

Subsequently, the controller 50 searches the caption data stored in the RAM 33 of the memory unit 30 to determine whether there is caption data obtained by combining the reproduction time data and the character data of the video signal (S49).

At this time, if it is determined that there is no caption data combining the play time data and the text data, the controller 50 moves to S41 and receives the caption data again.

However, if it is determined that there is subtitle data combining the play time data and the text data, the controller 50 is included in the subtitle data stored in the RAM of the memory unit 30 according to the set time of the timer 40. The subtitle signal converted into the character font stored in the ROM 32 of the memory unit 30 is output through the output unit 60 (S50).

9 is a flowchart illustrating a subtitle processing method using an audio signal according to another embodiment of the present invention.

Referring to FIG. 9, when playing captions in a local language or a specific language not included in the DVD, the controller 50 determines whether the caption data generated using the audio signal is input through the caption input / output unit 20. (S51).

At this time, if the caption data is not input, the controller 50 waits for a predetermined time.

However, if it is determined that the caption data has been input, the controller 50 stores the caption data in the RAM 33 of the memory unit 30 (S52).

Thereafter, it is determined whether the audio signal is input through the audio signal input unit 13 of the signal processor 10 connected to the audio output terminal of the DVD player (S53).

In this case, when it is determined that the audio signal is input through the audio signal input unit 13, the controller 50 outputs a control signal to the decoder 14 of the signal processor 10 to convert the digital audio signal into an analog audio signal. The conversion is made (S53).

Subsequently, the controller 50 outputs a control signal to the signal analyzer 12 of the signal processor 10, detects only a human voice part from the analog audio signal, and sends the control signal to the SRAM 31 of the memory unit 30. Save (S54).

Subsequently, the controller 50 searches the caption data stored in the RAM 33 of the memory unit 30 to determine whether there is caption data using a voice signal combining voice data and text data translated into a language of a designated country. (S56).

At this time, if it is determined that there is no subtitle data using the audio signal, the controller 50 moves to S51 and receives the subtitle data again.

However, if it is determined that there is subtitle data using the audio signal, the controller 50 stores the voice data stored in the SRAM 31 of the memory unit 30 in real time, and the RAM 33 of the memory unit 30. It is determined whether or not the synchronization signals of the voice data stored in S are matched (S57).

At this time, if it is determined that the synchronization signal of the voice data stored in the RAM (31) and the RAM (33) of the memory unit 30, the character data combined with the voice data ROM of the memory unit 30 The caption signal converted into the character font stored in (32) is output through the output unit 60 (S58).

Therefore, in addition to the closed caption data included in the video signal or the playback time of the video signal, by using the audio signal of a person included in the audio signal as a synchronization signal, various languages not included in the DVD can be displayed more efficiently with subtitles. Can be.

As described above, the present invention detects the closed caption data included in the video signal and stores the closed caption data in the RAM of the memory unit, stores the caption data input through the caption input unit in the RAM of the memory unit, and then stores the RAM and the RAM. Compare / determine the closed caption data stored in the subtitle. When the synchronization signal is matched, the subtitles can be displayed by converting the subtitles into character fonts stored in the ROM of the memory unit. Can be.

In addition, various languages not included in the DVD can be displayed more efficiently by using the human voice signal, the playback time of the video signal, etc., included in the audio signal as the synchronization signal.

Claims (4)

In the subtitle device for displaying a subtitle on the screen, A video signal input unit 11 connected to a video signal output terminal of a DVD player or the like to input a video signal including closed caption data, and a video signal output from the video signal input unit 11 are analyzed to generate a horizontal synchronous signal. A signal processor (10) for extracting and forming a signal analyzer (12) for detecting closed caption data from the horizontal synchronization signal; A subtitle input / output unit 20 for inputting / outputting subtitle data previously prepared in a language of a designated country; SRAM 31 to temporarily store the hexa value of the closed caption data extracted by the signal analysis unit 12 of the signal processing unit 10, an operating device for initializing the system and performing basic input / output processing, and in the system ROM 32, which stores a system program such as a font that is basically used when outputting character information, RAM for storing caption data applied by the caption input / output unit 20, and various data generated during operation. A memory unit 30 formed with 33; A timer (40) which operates at a predetermined time set by a video signal input through the video signal input unit (11) of the signal processor (10), and indicates a DVD playback time in units of hours, minutes, and the like; The closed caption data stored in the SRAM 31 of the memory unit 30 and the caption data stored in the RAM 33 of the memory unit 30 are compared with each other when the synchronization signal has the same value. A controller 50 for controlling an overall operation for outputting a corresponding caption signal; Caption processing apparatus for a DVD player, characterized in that the output unit 60 for outputting a caption signal applied from the control unit (30) to an external display device. The subtitle input / output unit 20 is a serial / parallel capable of data communication with a floppy disk drive for inputting / outputting data stored in a floppy disk, a memory stick drive for inputting / outputting data stored in a memory stick, and the like. A caption processing apparatus for a DVD player, comprising a communication port, a USB port capable of high-speed data communication, and a wired / wireless LAN capable of wired and wireless data communication. The audio signal input unit 13 of claim 1, wherein the signal processor 10 is connected to an audio signal output terminal such as a DVD player to input an audio signal, and the digital audio signal of the audio signal input unit 13 is analog audio. A subtitle processing device of a DVD player, characterized in that it comprises a decode (14) for converting and outputting a signal, and a signal analyzer (12) for detecting only a human voice part from the analog audio signal output from the decoder (14). . 2. The signal processing unit (10) according to claim 1, characterized in that the signal processing unit (10) includes a reproduction time input unit (15) which receives a reproduction time of a video signal detected by a timer embedded in a DVD player and outputs it to the control unit (50). DVD player subtitle processing device.