KR970010944B1 - Apparatus on caption display of still state in vcr - Google Patents

Abstract

Following the direction of the control part(23), the memory(21) is capable of converting the data or outputting at the output part(22). As the control part(23) does not input the output command signal, it repeats the caption data saving movement. When a still signal is inputted into the control part(23), it controls the memory(21), the data conversion and the output part(22) and converts the data stored at the memory(21), then outputs to the output part(22). The data is converted to caption to be output so that it may be displayed on the screen at the data conversion and output part(22).

Description

V-Cal's stationary caption display device

1 is a block diagram of a conventional subtitle display apparatus.

2 is a caption character signal waveform diagram of FIG.

3 is a block diagram of a caption display apparatus in an end stop state according to the present invention;

* Explanation of symbols for the main parts of the drawings

21: memory 22: data conversion and output unit

23: control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a caption display apparatus in a once-stopped state in which a subtitle is displayed in a still state in a VRC (hereinafter referred to as a VCR) having a caption processing function.

The caption signal, which is a caption signal, is carried on a composite video signal and transmitted. Typically, one screen of the video is formed by 525 horizontal lines, that is, scanning line scanning lines, and 30 such screens are transmitted continuously per second to watch a moving video screen.

However, not all of the 525 scanning lines appear on the TV or the monitor, but the scanning lines exist in the upper or lower part of the TV or the monitor, and the 525 lines are the parts that appear through the image, that is, the image signal. Become part of

FIG. 1 is a block diagram of a conventional caption display apparatus, and FIG. 2 is a caption character signal waveform diagram of FIG.

In the conventional subtitle display apparatus, as shown in FIG. 1, a data recovery unit 1, a synchronization separator 2, a horizontal and vertical counter and controller 3, a phase and frequency detector, into which a video signal is inputted (4), timing section 5, VCO 6, command processing section 7, decoder control section 8, display RAM 9, character ROM 10, and output section 11, respectively.

The video signal is input to the data recovery unit 1, adjusted to an appropriate recognition level, separated into a caption signal, which is a caption signal, and a general video signal, and then read and input to the command processor 7. In addition, the video signal is synchronously separated by the sync separator 2 so that the sync signal is output and the horizontal sync preference from the outside is detected by the phase and frequency detector 4 so that the phase and frequency are detected. Will be printed). The signal output from the phase and frequency detector 4 oscillates the VCO 6, and the signals output from the VCO 6 and the synchronization separator 2 are controlled by the horizontal and vertical counters and the controller 3. It is counted horizontally and vertically and is output to the timing part 5.

The signal output from the timing section 5 is processed by the command processing section 7 in association with the signal output from the data recovery section 1.

The decoder controller 8 outputs a control signal to the command processor 7 by an external decoder control, i.e., by an external subtitle ON / OFF button.

The command processing unit 7 controls the display RAM 9 and the character ROM 10 by using signals output from the decoder control unit 8, the timing unit 5, and the data recovery unit 1. That is, the display RAM 9 and the character ROM 10 are controlled to output final image data and subtitle data to the output unit 11.

The output unit 11 outputs an image preference obtained by combining the caption signal and the video signal output from the command processing unit 7 in the form of R, G, B (Red, Green, Blue).

The display RAM 9 reads the position at which the subtitle data is displayed on the screen under the control of the command processor 7 and the character ROM 10 reads the character.

The caption signal is loaded on the invisible scanning line and transmitted to the 21st line. The 21st line of the scanning line transmits data corresponding to two characters in hexadecimal as shown in FIG. Each character data includes a character and its memory address, an on-screen address to be displayed and the color and brightness of the character.

However, the conventional subtitle display apparatus has a problem in that the subtitles are not recognized because only the subtitles can be viewed only during playback because the subtitles disappear when pressing the pause button while watching the VCR.

SUMMARY OF THE INVENTION In order to improve the above problem, an object of the present invention is to provide a caption display device in a one-stop state in which captions are displayed when the stop function is performed.

In order to achieve the above object, the present invention provides a VCR having a caption processing function. Memory means for storing subtitle data, data conversion and output means for processing data output from the memory means and outputting in a still image state, and control means for controlling the memory means and data conversion and output means; It is to provide a caption display device of the stationary state, characterized in that the configuration.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

3 is a block diagram of a caption display apparatus in an end stop state according to the present invention.

As shown in FIG. 3, the caption display apparatus in the one-stop state according to the present invention comprises a memory 21, a data conversion and output unit 22, and a control unit 23. As shown in FIG.

The memory 21 stores characters under the control of the controller 23 and outputs them to the data conversion and output unit 22 when the sentences are completed, and displays the characters ROM and characters in which the characters are stored on the screen. It consists of a stored display ROM.

The data conversion and output unit 22 analyzes the data output from the memory 21 with each binary code separately from the output image signal under the control of the control unit 23, and analyzes the analyzed characters on the screen. Output to the display position of.

The control unit 23 controls the memory 21 and the data conversion and output unit 22 by using an end stop signal and a reproduction signal input from an external VCR. When the reproduction signal is input to the controller 23, the caption signal is continuously stored in the display ROM and the character ROM of the memory 21. That is, the subtitle signal displayed in the reproduction mode is stored in the memory 21. When another new subtitle signal is input, the existing subtitle signal is erased and the new subtitle signal is stored in the memory 21 again.

The memory 21 may output the subtitle data to the data conversion and output unit 22 at any time under the control of the control unit 23. If the output command signal is not input from the control unit 23, the subtitle data storage may be performed. Repeat the operation.

Once the stop signal is input to the controller 23, the controller 23 controls the memory 21 and the data conversion and output unit 22. The data currently stored in the memory 21 is converted into the data conversion and output unit ( 22), and is converted into subtitles so that the data conversion and output unit 22 can be displayed on the screen.

That is, the data output from the memory 21 is processed by the data conversion and output unit 22 so as to output correct captions in the once-stopped screen state. And address are reconfigured and output.

The caption data is a composite data of about 2 to 68 hexadecimal data in a combination of binary codes, which is read from the memory 21 and shows minimum data indicating an address indicating a character and its position on the screen. Is output to the data conversion and output section 22 for processing.

The present invention configured and operated as described above can double the caption learning effect by displaying the text caption in the image still screen state, and can prevent the occurrence of the incomprehensibility due to not seeing the caption.

Claims (4)

A VCR having a caption processing function, comprising: memory means (21) for storing caption data; Data conversion and output means (22) for processing data output from said memory means (21) and outputting in a state of a still image screen; And a control means (23) for controlling the memory means (21) and data conversion and output means (22). 2. The caption display apparatus according to claim 1, wherein the memory means (21) stores new caption data input when new caption data is input. The method of claim 1, wherein the control means (23) is to stop the end of the VCC, characterized in that for controlling the output of the subtitle data from the data conversion and output means 22 in accordance with an end stop signal input from the outside. Subtitle display device in the state. 2. The caption display apparatus according to claim 1, wherein the memory means (21) comprises a character ROM in which characters are stored and a display ROM in which a character is displayed on the screen.