KR19990035597A - Caption signal location information display method of caption broadcasting receiver - Google Patents

Abstract

In the caption signal location information display method of the disclosed caption broadcasting receiver, when the caption signal of the recording / playback device is displayed through a display unit connected to the computer main body, the caption signal location information is added to the caption signal and stored in the caption signal. The caption signal can be easily edited by detecting the location information added from the computer main body.

The present invention provides a caption signal transmitted from a recording / playback apparatus when a key signal for displaying location information selected by a user and a time code or division code for displaying location information are selected and input. It is determined whether or not there is, and to add the time code or split code selected by the user to the transmitted caption signal to be stored in the auxiliary recording medium or memory.

Accordingly, the present invention provides an effect that the desired position can be easily found and edited by the position information by adding and storing the position information in the computer main body for the caption signal inputted from the recording / playback apparatus.

Description

Caption signal location information display method of caption broadcasting receiver

The present invention relates to a method for displaying caption signal position information of a caption broadcasting receiver, and more particularly, to display a caption signal of a recording / playback apparatus through a display unit connected to a computer main body. The present invention relates to a method of displaying location information of a caption broadcasting receiver, by adding information to a caption signal and storing the caption signal so that the location information added by the computer can be easily edited.

In general, the closed captioning method in television broadcasting includes an open caption method that superimposes a caption signal in an active section of the television signal, thereby displaying urgent news or notifications by the broadcaster's selection without the viewer's selection, and the non-caption of the television signal. When a caption signal is transmitted in an active section, that is, in a vertical blanking section, there is a closed captioning method in which a television screen and dialogue contents can be viewed as captions by a viewer's selection.

Closed captioning closed captioning has been in operation in the United States since 1978 for people with hearing disabilities without sign language.

The closed caption function described above inserts a predetermined caption signal at a predetermined position of the video signal, for example, at the 21st horizontal line, and stores it in the recording medium.

When the recording medium storing the caption signal is reproduced as described above, the caption signal is detected from the reproduction signal and decoded into the character data, and the character signal corresponding to the character data is generated to be reproduced on the screen of a video display device such as a television receiver. It is displayed together with the video signal.

In addition, the closed caption function described above displays characters different from the audio signal output to the speaker.

For example, a speaker outputs an audio signal in Korean, and displays English characters on the screen.

Caption signal reproducing apparatus having such caption function is repeatedly used by the user for learning a foreign language.

1 is a schematic block diagram of a recording and reproducing apparatus having a caption function for implementing caption signals recorded on a recording medium according to the prior art for language learning.

As shown in the drawing, the control unit 11 controls the reproduction and repetitive reproduction of the caption signal, and an operation command for operating a user's key signal input or a remote control transmitter (not shown) to the control unit 11. An operation command input unit 12 for inputting, a deck 13 for reproducing the recorded signal while driving the recording medium 14 under the control of the control unit 11, and a recording medium 14 for the deck 13 to travel. The travel counter 15 for counting the travel value of the < RTI ID = 0.0 >), the data slicer 16 for detecting the caption signal inserted into the video signal reproduced from the recording medium 14, and the caption signal detected by the data slicer 16. A caption decoder 17 for decoding into character data, a memory 18 for storing and outputting character data output from the count value caption decoder 17 of the driving counter 15, and a character data stored in the memory 18. Character that generates the corresponding character signal It consists of the biological father 19, mixer 20 for mixing outputs a character signal output from the character generator 19 to the video signal reproduced from the recording medium 14 under the control of the control unit 11.

In the prior art configured as described above, when the operation command input unit 12 inputs a playback command to the control unit 11 according to a user's key input, the control unit 12 controls the deck 13 to reproduce the recording medium 14. The travel counter 15 counts and outputs the travel value of the recording medium 14.

The image reproduced on the recording medium 14 is input to the mixer 20 and to the data slicer 16.

Then, the data slicer 16 detects the caption signal inserted at the predetermined position of the reproduced video signal, and the caption decoder 17 decodes the detected caption signal to output the character data according to the caption signal.

The character data output by the caption decoder 17 and the driving count value of the recording medium 14 output by the driving counter 15 are input to the memory 18 and stored together.

Here, the capacity of the memory 18 is set to such a degree that the character data that can be displayed on one screen and the value of the driving count according to the character data can be stored, and stored and erased as first in first out. do.

In accordance with the character data stored in the memory 18, the character generator 19 generates a character signal, and the generated character signal is input to the mixer 20.

The mixer unit 20 synthesizes and outputs the character signal generated by the character generator 19 to the video signal reproduced by the recording medium 14.

In this case, the memory 18 stores and erases the character data in a first-in, first-out manner, so that the character is scrolled upward in the second screen area.

However, the recording and reproducing apparatus having the above-described caption function sets only the repeat playback section by using the position at which the characters displayed on the screen are played back, and only repeats the section exactly as desired by the user. There was a problem that the function can not be granted.

Therefore, an object of the present invention is to store the caption signal of the recording and playback apparatus through the display unit connected to the computer main body so as to solve the above-described problems by adding the position information to the caption signal to determine the current position in one program. The present invention provides a method for displaying caption signal position information of a caption broadcasting receiver, which makes it possible to easily edit caption signals by detecting position information added by a computer main body.

1 is a schematic block diagram of a recording and reproducing apparatus having a caption function for implementing caption signals recorded on a recording medium according to the prior art for language learning;

2 is a view showing an example of a state displayed on an image display screen of a recording and reproducing apparatus having a caption function according to the prior art;

3 is a schematic structural block diagram illustrating an embodiment of a caption broadcast receiving apparatus according to the present invention;

4 is a schematic structural block diagram illustrating a first embodiment of a caption broadcast receiving apparatus according to the present invention;

FIG. 5 is a schematic structural block diagram illustrating a second embodiment of a caption broadcasting receiver according to the present invention; FIG.

6 is a flowchart illustrating a method for displaying caption signal position information of a caption broadcasting receiver according to the present invention.

<Description of Symbols for Main Parts of Drawings>

110,210: Record and playback device 120,2220,300: Computer body

111,212,310: Tuners

112,213,312: Video and audio signal processor

113,214: Deck

115,221,314: Data Slicers and Buffers

114,223,322: caption decoder 116: first control unit

222,316: Address decoder 122,228,328: Key input unit

123,227,320: Memory 124,229,330: Printer

125,224,324: Display driver

126,225,326: display unit 331: switching unit

SPK: Speaker 400: Auxiliary Storage

In the caption broadcast receiving apparatus according to the present invention for achieving the above object, the present invention is a key signal for displaying the location information selected by the user and according to the time code or split code for the location information display is selected and inputted In this case, the second control unit provided in the computer main body determines whether there is a caption signal transmitted from the recording / reproducing apparatus, and adds a time code or a division code selected by the user to the caption signal transmitted, and stores it in the auxiliary recording medium or memory. Characterized in that.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic block diagram illustrating an embodiment of a caption broadcast receiving apparatus according to the present invention.

As shown in the figure, when the user enters the caption mode, the audio signal and video signal demodulated by the tuner 111 are processed and stored in the recording medium, and the caption signal included in the video signal is detected and output. And a recording and reproducing apparatus 110 for generating and outputting a character signal corresponding to a caption signal included in the video signal and recording or reproducing the recorded information on a recording medium mounted on the deck 113 according to the deck control signal. In addition, the caption signal including the control code input from the recording and playback device 110 is stored in the memory 123 in the form of a file so that the text signal superimposed on the video signal input from the recording and playback device 110 can be edited. Displayed by the display unit 126, and outputs the audio signal to the speaker (SPK) and the computer main body 120 for outputting the deck control signal for controlling the deck 113 of the recording and playback apparatus 110 It is.

At this time, the detailed configuration of the recording and playback apparatus 110 is as follows.

The tuner 111 demodulates the broadcast signal of the channel tuned according to the user's channel key signal among the high frequency signals received by the antenna and outputs an audio signal and a video signal.

The video and audio signal processor 112 processes the audio signal and the video signal input from the tuner and outputs the signal.

The deck 113 records the video and audio signals input from the video and audio signal processor 112 on the recording medium, and reproduces and outputs the video and audio signals recorded on the recording medium.

The data slicer and the buffer 115 detect only the caption signal among the video signals input from the video and audio signal processor 112 and output the 16-bit data.

The caption decoder 114 detects only a caption signal among video signals input from the video and audio signal processor 112, generates a text signal corresponding thereto, and superimposes the video signal according to a control code included in the caption signal. .

The first controller 116 controls the deck 113 according to the control signal input from the computer main body 120, and the caption signal input from the data slicer and the buffer 115 through the RS232C communication line. To send.

At this time, the detailed configuration of the computer body 120 described above is as follows.

The second controller 121 switches to the caption mode according to the caption key signal of the user, and controls the deck 113 of the recording / playback apparatus 110 according to the key signal input by the user through the key input unit 122. It outputs a control signal, and has a variety of application programs to read the caption signal stored in the memory 123, the user can edit with various functions of the computer main body.

In addition, the caption signal input from the first control unit 119 of the recording and playback apparatus 110 is controlled to be stored in the memory 123, and the caption signal stored in the memory 123 is output to an output device such as the printer 124. It is configured to output through.

The display driver 125 converts the video signal superimposed on the text signal input from the recording / playback apparatus 110 into an RGB signal for display on the display unit 126, and converts the display method of the input video signal into a television receiver. To computer graphics card output.

That is, the 525-line scanning method is converted into, for example, the 640 * 1024 method, and the display unit 126 displays the video signal in which the text signal is superimposed.

The display unit 124 is composed of a plurality of screens, and displays a video signal superimposed on the character signal input from the recording and playback apparatus 110 in real time according to the control signal input from the second control unit 121 on one screen On the other one screen, only the text signal of the video signal input from the recording / playback apparatus 110 is detected and displayed, and a control panel for controlling the recording / playback apparatus 110 is displayed on the other screen.

4 is a schematic block diagram illustrating a first embodiment of a caption broadcast receiving apparatus according to the present invention.

As shown in the figure, when the user switches to the caption mode, the video signal and the audio signal demodulated by the tuner 211 are signal processed, stored in the recording medium according to the deck control signal, and simultaneously output. The recording and reproducing apparatus 210 which reproduces and outputs a signal, detects a caption signal among video signals inputted from the recording and reproducing apparatus 210, specifies an address, and stores the address in the memory 227 in a file form. Detects a signal, generates a text signal corresponding to the detected caption signal, superimposes the video signal on the display unit 227, and outputs an audio signal output from the recording / reproducing apparatus 210 to the speaker SPK. And a computer main body 220 for outputting a deck control signal for controlling the deck of the recording and reproducing apparatus 210. FIG.

At this time, the detailed configuration of the above-described recording and reproducing apparatus 210 is as follows.

The tuner 211 demodulates a broadcast signal of a channel tuned according to a user's channel key signal among the high frequency signals received by the antenna and outputs a voice signal and a video signal.

The video and audio signal processor 212 processes and outputs the audio signal and the video signal input from the tuner.

The deck 213 records the video and audio signals input from the video and audio signal processor 212 on the recording medium according to the deck control signal, and reproduces and outputs the video and audio signals recorded on the recording medium.

The third controller 214 controls the operation of the deck 213 in response to a control signal input from the fourth controller 226 of the computer main body 220.

At this time, the detailed configuration of the computer body 220 described above is as follows.

The data slicer and the buffer 221 detect and store only caption signals among the image signals input from the recording / playback apparatus 210.

The address decoder 222 generates an address so that a unique address can be assigned to the data slicer and the caption signal stored in the buffer 221 according to the addressing control signal.

The caption decoder 223 detects only the caption signal among the video signals input from the recording / playback apparatus 210, generates a character signal corresponding to the detected caption signal, and superimposes the video signal according to the control code to output the caption signal.

The display driver 224 converts an image signal superimposed on the text signal input from the recording and playback apparatus 210 into an RGB signal so that the display unit 225 can be displayed, and converts the display method of the input image signal into a television receiver. To computer graphics card output.

That is, the 526 line scanning method is converted into, for example, the 640 * 1024 method, and the display unit 225 displays the video signal in which the text signal is superimposed.

The fourth control unit 226 outputs a control signal for controlling reproduction and recording of the reproduction recording apparatus 210, and stores an address in the memory 227, which is assigned an address to a caption signal input from the data slicer and the buffer 221. It outputs an addressing control signal so that it can be read, and has a variety of programs that can be edited by the user with various functions of the computer main body by reading caption signals stored in the memory 227.

The display unit 225 is composed of a plurality of screens, and displays a video signal superimposed on the character signal input from the recording and playback device 210 in real time according to the control signal input from the fourth control unit 226 on one screen On the other one screen, only the text signal of the video signal input from the recording and reproducing apparatus 210 is detected and displayed, and the control panel for controlling the recording and reproducing apparatus 210 is displayed on the other one screen.

5 is a schematic block diagram illustrating a second embodiment of a caption broadcast receiving apparatus according to the present invention.

As shown, a caption signal is detected among the image signals demodulated by the tuner 310 provided therein, an address is assigned to the detected caption signal, and the addressed caption signal is stored in the memory 320 in a file form. At the same time, a text signal corresponding to the detected caption signal is generated and superimposed on the video signal according to the control code and displayed on the display unit 326, and the audio signal is output to the speaker SPK and the recording or reproduction control signal is output. The computer main body 300 and the auxiliary storage unit 400 for recording or reproducing the video signal and the audio signal including the caption signal according to the recording or reproduction control signal input from the computer main body 300.

At this time, the detailed configuration of the computer main body 300 is as follows.

The tuner 310 demodulates a broadcast signal of a channel tuned according to a user's channel key signal among the high frequency signals received by the antenna and outputs a voice signal and a video signal.

The video and audio signal processor 312 processes and outputs the audio signal and the video signal input from the tuner 310.

The data slicer and the buffer 314 detect and store only the caption signal among the video signals input from the video and audio signal processor 312.

The address decoder 316 generates an address to assign a unique address to the data slicer and the caption signal stored in the buffer 314 according to the addressing control signal.

The caption decoder 322 detects only a caption signal among the video signals input from the video and audio signal processor 312, generates a text signal corresponding to the detected caption signal, and superimposes the video signal according to the control code to output the caption signal.

The fifth controller 318 outputs a control signal such that a caption signal having an address is recorded in the memory 320, an output control signal for reading a caption signal recorded in the memory 320, and the auxiliary storage unit 400. Control the video and audio signal containing the caption signal stored in the ()), output the addressing control signal, and read the caption signal stored in the memory 320 so that the user can edit with various functions of the computer main body It has a variety of applications.

The display driver 324 converts an image signal superimposed on the text signal input from the caption decoder 322 into an RGB signal so that the display unit 326 can be displayed, and converts the display method of the input image signal into a television receiver scanning method. To convert the computer graphics card output.

That is, the 526-line scanning method is converted into, for example, the 640 * 1024 method, and the display unit 326 displays an image signal in which a text signal is superimposed.

The display unit 326 includes a plurality of screens, and displays a video signal in which a text signal is superimposed in real time according to a control signal input from the fifth control unit 318 on one side screen, and displays a text among the video signals on another screen. It is configured to detect and display only the signal.

The operation of the caption broadcasting receiver according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings.

6 is a flowchart illustrating a method for displaying caption signal position information of a caption broadcasting receiver according to the present invention.

As shown, it is determined whether a key signal for displaying position information is input by the user (S1), and if the key signal is input as a result of determination, whether to use a time code for displaying position information in the caption signal. It is determined whether or not a key signal for determining whether to use a code is input (S2).

As a result of the determination, when the time code is selected, the method and the position of the time code are determined at a certain position of the caption signal (S3). It is determined whether a signal is input (S4).

As a result of determination, when a key signal for the completion of position information display is input, it is determined whether there is a caption signal transmitted from the recording / playback apparatus 110 (S5). Is added to the caption signal as position information (S6), stored in the recording medium and the memory (S7), and then it is repeated from the step of determining whether there is a caption signal (S5).

The reason is that the location information should be given to the whole movie.

As described above, the present invention adds and stores location information in the computer main body for the caption signal inputted from the recording / reproducing apparatus, thereby providing an effect of easily finding and editing the desired part by the location information.

Claims (3)

A first step of determining whether a key signal for displaying position information is input by a user; A second step of determining whether a predetermined code for displaying location information is input when a key signal for displaying location information is input as a result of the determination in the first step; A third step of determining a location to which a predetermined code is added to the caption signal when a predetermined code for displaying position information is input as a result of the determination in the second step; A fourth step of determining whether a key signal for notifying completion of location information is input when the location is determined in the third step; A fifth step of adding location information to the caption signal when a key signal for informing completion is input as a result of the determination in the fourth step; And Caption signal position of the caption broadcast receiving apparatus comprising a sixth step of repeating the step of determining whether there is a caption signal after storing the caption signal to which the position information is added in the fifth step in the recording medium; Information display method. The method of claim 1, wherein the code for displaying location information of the second step comprises: Caption signal position information display method of a caption broadcasting receiver characterized in that the time code. The method of claim 1, wherein the code for displaying location information of the second step comprises: Caption signal position information display method of a caption broadcasting receiver characterized in that the split code.