KR100193098B1 - Subtitle position moving device using double window screen and its control method - Google Patents

Abstract

The present invention relates to an apparatus for moving a caption position using a double window screen and a method of controlling the caption position. When the caption is displayed while the video signal for the CRT (50) main screen is displayed, the viewer adjusts the volume or color. When the data to be adjusted by the input unit is input, the subtitles of the input data overlap the subtitles displayed on the main screen and appear on the main screen. Therefore, the subtitles of the input data overlap the subtitles displayed on the main screen. The first tuner 10 or the second tuner 12 may be used to solve the conventional problem in that the viewer cannot properly check the contents of the subtitle displayed on the main screen during the time when the subtitle of the input data is displayed on the main screen. When the broadcast signal to which a unique number for displaying a subtitle is assigned is received, the subtitle position of the data input by the viewer by the control signal of the microcomputer 20 is displayed. A subtitle position processing unit 70 for processing the color of the subtitle set and set in the subtitle, a conversion IC 80 for converting the color of the subtitle processed by the subtitle position processing unit 70 into a luminance (monochrome) signal, and a conversion IC 80 And a switching IC 90 for switching the luminance signal converted from the < RTI ID = 0.0 > and < / RTI > video cassette recorder (VCR) and inputting it to the PIP processing unit 60, and providing a control method accordingly. When the subtitles of the data overlap with the subtitles displayed on the main screen, the subtitles of the input data are moved to the sub screen to prevent the subtitles displayed on the main screen from overlapping, providing more stable subtitles to viewers. You can watch.

Description

Subtitle position moving device using double window screen and control method

1 is a block diagram showing a screen control device in a typical television receiver PIP (Picture In Picfure) mode.

2 is a flowchart illustrating a process of displaying subtitles on a main screen in a conventional PIP television receiver.

3 is a block diagram showing the configuration of a caption position moving apparatus using a double window screen according to the present invention.

4 is a flowchart illustrating a control method for moving a subtitle position using a double window screen according to the present invention.

* Explanation of symbols for main parts of the drawings

10: first tuner 12: second tuner

20: microcomputer 22: key input unit

30: sound processor 40: image processor

500: CRT (Cathode-ray Tube) 60: PIP (Picture In Picture) Processing Unit

70: caption position processing unit 80: conversion IC

90: switching IC

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver (TV). In particular, when a subtitle is displayed on a main screen using a double window screen in a PIP (Picture In Picture) mode of a television receiver, a key input unit is used to adjust a volume or color. When inputting data to be adjusted by, the subtitles of the input data are moved to the sub-screen when the subtitles of the input data overlap with the subtitles displayed on the main screen, thereby preventing the subtitles displayed on the main screen from overlapping. The present invention relates to a caption position moving apparatus using a double window screen and a control method thereof.

In general, an apparatus for removing a separate screen in a PIP (Picture In Picture) mode of a television receiver includes a first tuner that receives a general broadcast signal transmitted from a broadcasting station through an antenna (not shown) as shown in FIG. 10, a second tuner 12 for receiving a broadcast signal in the PIP mode, and a microcomputer 20 for processing the broadcast signal received by the first tuner 10 and the second tuner 12 by a set program. And receiving a broadcast signal received by the first tuner 10 and a broadcast signal processed by the microcomputer 20 to process a video signal to process a composite video board (CVBS) and a reproduced video signal. The image processing unit 40 outputting the color data of (S, G, B), the broadcast signal of the PIP mode received by the second tuner 12 and the broadcast signal (CVBS) and the image processed by the microcomputer 20 The composite video signal processed by the processing unit 40 receives the video signal of the PIP mode. A PIP processing unit 60 for processing and outputting color (R, G, B) data to the image processing unit 40, a CRT 50 for displaying the image signal processed by the image processing unit 40 on the screen, and The sound processor 30 is configured to process a voice signal of the broadcast signal processed by the microcomputer 20 and a speaker 32 to output the voice signal processed by the sound processor 30.

That is, when the general broadcast signal transmitted from the broadcasting station and the broadcast signal of the PIP mode are received through the first tuner 10 and the second tuner 12, the general video signal received by the first tuner 10 is an image processor. Input to 40 and the microcomputer 20, respectively.

In addition, the PIP mode broadcast signal received by the second tuner 12 is also input to the PIP processing unit 60 and the microcomputer 20.

Therefore, the microcomputer 20 controls the general broadcast signal input from the first tuner 10 and the second tuner 12 and the broadcast signal of the PIP mode to the appropriate signal by the setting program and received by the first tuner 10. The image signal is input to the image processor 40, and the image signal of the PIP mode received by the second tuner 12 is input to the PIP processor 60.

The image processing unit 300 processes the video signal of the input general broadcast signal by the control signal of the microcomputer 20, extracts code data, decodes it, and outputs the composite video signal to the PIP processing unit 60. do.

The PIP processing unit 60 processes the PIP mode image signal input from the microcomputer 20 and the composite image signal CVBS input from the image processing unit 40 in the PIP mode, and the color data of the PIP mode image signal processed. Is input again to the image processor 40.

Therefore, the image processing unit 40 accurately displays the color (R, G, B) data input from the PIP processing unit 60 and outputs it to the CRT 50, thereby displaying a clear standard color image on the screen.

In addition, in the broadcast signal processed by the microcomputer 20, the audio signal is processed into an appropriate audio signal via the sound processor 30, and outputs the audio signal through the speaker 32 to the viewer.

Referring to the conventional method of displaying a subtitle transmitted to a broadcast station in the PIP mode, as shown in the flowchart attached to Figure 2, the TV is turned on (S401) to receive a broadcast signal of the PIP mode (S402), step In step S402, when the broadcast signal is received, watching the broadcast signal in the received PIP mode (S403), determining whether there is a unique number for the subtitle from the broadcasting station while watching the broadcast signal (S404), and (S404). If there is no unique number for the subtitle as a result of the determination in step (S403), and if there is a unique number for the subtitle and displays the received subtitle on the CRT screen with the video signal on the main screen (S405) And determining whether to end watching TV after displaying subtitles with the video signal in the main screen in step S405 (S406), and if not watching TV in step S406, the PIP mode continues. Broadcast signal (S403) and, as long as to end the TV viewing is in the TV PIP mode control method comprising the step (S407) for turning off the TV power source.

That is, the TV is turned on (S401) and receives the broadcast signal of the PIP mode through the first tuner 10 or the second tuner 12 (S402).

When the broadcast signal is received through the first tuner 10 or the second tuner 12, the broadcast signal of the received PIP mode is output so that the viewer can watch the screen.

At this time, the microcomputer 20 determines whether the viewer has a unique number (ID) for the subtitles in the broadcast signal received by the program set while watching the broadcast signal (S404).

If there is no unique number for the subtitle as determined in step S404, the microcomputer 20 outputs a control signal to the PIP processing unit 60 to process the video signal through the PIP processing unit 60 and the image processing unit 40. By outputting to the main screen of the CRT (50) so that the viewer can continue to watch the broadcast signal of the PIP mode. (S403)

However, if the broadcast signal contains the unique number for the subtitles as determined in the determination step (S404), the PIP processing unit 60 and the image to display the received subtitles on the CRT 50 main screen together with the video signal on the main screen. By processing the video signal through the processing unit 40 and outputting it to the main screen of the CRT 50, the viewer can read the subtitles transmitted from the broadcasting station while watching the broadcast signal of the PIP mode as the main screen (S403).

After the subtitles transmitted from the broadcasting station are displayed on the main screen, the microcomputer 20 asks whether to end watching the TV and continues to watch the TV. The power off ends watching TV.

However, the TV receiver of the general PIP mode receives a broadcast signal transmitted from a broadcasting station and displays a subtitle while a subtitle is displayed while displaying a video signal for the CRT 50 main screen. When inputting data to be adjusted by, the subtitles of the input data are displayed on the main screen, overlapped with the subtitles displayed on the main screen, so that the viewers are displayed on the main screen during the time when the subtitles of the input data are displayed on the main screen. There was a problem that could not properly check the content of the subtitles.

The present invention has been made to solve the above-mentioned shortcomings, and for this purpose, an apparatus and control that can prevent the subtitles from overlapping when subtitles are simultaneously input using a double window screen in the PIP mode of a television receiver. In providing a method.

According to another object of the present invention, when a subtitle is displayed on the main screen according to the first purpose, when a viewer inputs data to be adjusted by a key input unit to adjust volume or color, the subtitle of the input data is displayed on the main screen. When subtitles overlap with subtitles displayed on the screen, the subtitles of the input data are moved to the sub-screen to prevent the subtitles displayed on the main screen from overlapping, thereby providing a more stable subtitle to the viewer so that the viewer can watch a more lively screen. .

In order to realize the present invention having the above-mentioned objects, in a television receiver in a PIP mode, when a broadcast signal to which a unique number indicating a subtitle is displayed is received at the first tuner 10 or the second tuner 12, a microcomputer ( The subtitle position processing unit 70 for processing the color of the set subtitles by setting the subtitle position of the data input by the viewer on the sub-screen by the control signal of 20), and the color of the subtitles processed by the subtitle position processing unit 70 with luminance. A conversion IC 80 for converting into a (black and white) signal, and a switching IC 90 for switching the luminance signal converted by the conversion IC 80 and the signal input from the video cassette recorder (VCR) to be input to the PIP processing unit 60. ), And in the method of controlling the TV in the PIP mode, the data input by the viewer (eg, screen color and volume adjustment data) while the subtitle is displayed on the main screen with the video signal in step S405. Judging If there is no data input by the viewer while the subtitle is displayed in step S408 and the result of the determination in step S408, the received subtitle is displayed on the CRT screen together with the video signal on the main screen (S405), and the viewer inputs the subtitle. If there is one data, a step of implementing a double window for dividing the screen (S409), and if the double window is implemented in step S409, controls to display only the data input by the viewer on the sub-screen and then perform step 406. It is a well known feature to provide a method.

This will be described with reference to the accompanying drawings.

3 is a block diagram showing a configuration of a caption position moving apparatus using a double window screen according to the present invention.

A first tuner 10 for receiving a general broadcast signal transmitted from a broadcasting station through an antenna (not shown), a second tuner 12 for receiving a broadcast signal in a PIP mode, and a second of the first tuner 10. The microcomputer 20 processes the broadcast signal received by the tuner 12 by a set program, and receives the broadcast signal received by the first tuner 10 and the broadcast signal processed by the microcomputer 20 to receive a video signal. An image processing unit 40 for processing the composite image signal CVBS and outputting color (R, G, B) data of the reproduced image signal, and a broadcast signal of the PIP mode received by the second tuner 12; The image processing unit 40 receives the broadcast signal processed by the microcomputer 20 and the composite video signal CVBS processed by the image processing unit 40 and processes the image signal in the PIP mode to obtain color (R, G, B) data. PIP processing unit 60 for outputting from the CRT, CRT (50) for displaying the image signal processed by the image processing unit 40 on the screen, In the television receiver having a sound processor 30 for processing a voice signal of the broadcast signal processed by the microcomputer 20, and a speaker 32 for outputting the voice signal processed by the sound processor 30, When the first tuner 10 or the second tuner 12 receives a broadcast signal assigned with a unique number for displaying the caption, the control signal of the microcomputer 20 sets the caption position of the data input by the viewer on the code surface. A caption position processor 70 for processing the color of the set caption, a conversion IC 80 for converting the color of the caption processed by the caption position processor 70 into a luminance (monochrome) signal, and a conversion IC 80 The switching IC 90 for switching the luminance signal and the signal input from the video cassette recorder to the input to the PIP processing unit 60 is configured to be further included.

In the description of the drawing, reference numeral 22 denotes a key input unit for the viewer to set a background color or volume of the screen by key input.

4 is a flowchart illustrating a control method for moving a caption position using a double window screen according to the present invention.

Receiving the broadcast signal of the PIP mode by the TV is turned on (S401) (S402), and watching the broadcast signal of the received PIP mode when the broadcast signal is received in step S420 (S403), and watching the broadcast signal Determining whether there is a unique number (ID) for the caption from the broadcasting station during operation (S404), and if there is no unique number (ID) for the caption as a result of the determination in step S404, watching the broadcast signal of the PIP mode (S403). If there is a unique number (ID) for the subtitles, the received subtitles are displayed on the CRT screen together with the video signal on the main screen (S405). Determining whether to end the operation (S406), and if not watching TV in step S406, continue to watch the broadcast signal in the PIP mode (S403), and if the TV viewing is to end, turn off the TV power In the TV control method of the PIP mode consisting of the step (S407) In step S405, determining whether there is data input by the viewer (eg, screen color and volume adjustment data) while the caption is displayed on the main screen together with the video signal (S408) and in step S408. As a result, if there is no data input by the viewer while the subtitles are displayed, the received subtitles are displayed on the CRT screen together with the video signal on the main screen (S405). When the double window is implemented in step S409 and step S409, only the data input by the viewer is displayed on the sub-screen, and then a control method is performed to perform step S406.

Hereinafter, operations and effects of an embodiment of the present invention will be described with reference to the accompanying drawings.

An operation relationship of the caption position moving apparatus using the double window screen according to the present invention as shown in FIG. 3 will be described first.

When the general broadcast signal transmitted from the broadcasting station and the standard broadcast signal in the PIP mode are respectively received through the first tuner 10 and the second tuner 12, the general video signal received by the first tuner 10 is converted into an image processing unit ( 40 and input to the microcomputer 20, respectively.

In addition, the PIP mode standard broadcast signal received by the second tuner 200 is also input to the PIP processing unit 60 and the microcomputer 20.

Accordingly, the microcomputer 20 controls the general broadcast signal input from the first tuner and the second tuner 12 and the broadcast signal of the PIP mode to an appropriate signal by a setting program to control the video signal received by the first tuner 10. The image signal of the PIP mode received by the second processor 12 is input to the image processor 40 and the PIP processor 60.

The image processor 300 processes a video signal from an input general broadcast signal, extracts code data, decodes the code data, and outputs the decoded data to input the composite video signal CVBS to the PIP processor 60.

The PIP processing unit 60 processes the PIP mode video signal input from the microcomputer 20 and the composite video signal CVBS input from the image processing unit 40 in the PIP mode. R, G, and B) data is input to the image processor 40 again.

Therefore, the image processing unit 40 accurately processes the color (R, G, B) data input from the PIP processing unit 60 and outputs it to the CRT 50 to display a clear standard color image on the screen.

At this time, the viewer operates the key input unit 320 to arbitrarily set the color data of the sub-screen divided on the CRT 50 screen in the PIP mode according to the preference and inputs the color data of the sub-screen arbitrarily to the microcomputer 20. do.

The microcomputer 20 processes the color data of the sub-screen input from the key input unit 320 by the set program to store the adjustment data of the sub-screen set by the viewer in the memory unit 340 connected to the outside. The adjustment data of the processed sub-screen is input to the PIP processing unit 60.

The PIP processing unit 60 processes the video signal for the sub picture of the PIP mode input from the microcomputer 20 and the composite video signal (CVBS) input from the image processing unit 40 in the PIP mode. Color (R, G, B) data of the image signal of the screen is input to the image processor 40 again.

Accordingly, the image processing unit 40 correctly processes the color (R, G, B) data of the sub-screen in the PIP processing unit 60, and outputs the data set by the viewer to the sub-screen to the viewer's preference. Display the correct screen.

In addition, the audio signal is processed from the broadcast signal processed by the microcomputer 20 into an appropriate audio signal via the sound processor 30, and outputs the audio signal through the speaker 32 to the viewer.

At this time, when a unique number (ID) for displaying a caption in the broadcast signal transmitted from the broadcasting station is received by the first tuner 10 or the second tuner 12, the microcomputer 20 receives the broadcast signal to which the unique number (ID) is assigned. The subtitle is displayed on a specific part (eg, lower part of the screen) of the video signal displayed on the main screen of the CRT 50 by processing the?

While the subtitle is displayed on the main screen of the CRT 50, when the viewer inputs data for adjusting the color of the screen or data for adjusting the volume through the key input unit 22, the microcomputer 20 returns to FIG. As shown in the flowchart, a signal for processing the input signal is input to the caption position processing unit 70.

The caption position processing unit 70 sets the caption position of the data input by the viewer on the sub-screen according to the control signal of the microcomputer 20, and processes the color of the set caption and processes the caption through the conversion IC 80. Is converted into a luminance (black and white) signal and input to the switching IC 90.

Therefore, the switching IC 90 switches the luminance signal for the sub-screen input from the conversion IC 80 and inputs it to the PIP processing unit 60.

The PIP processing unit 60 processes the luminance signal input from the conversion IC 80 via the switching IC 90 by the control signal input from the microcomputer 20 and outputs the luminance signal of the sub-screen processed by the image processing unit ( In 40).

Therefore, the image processing unit 40 correctly processes the luminance signal of the sub-screen by the PIP processing unit 60 and outputs it to the CRT 50 sub-screen so that the subtitles and subtitles of the broadcast signal transmitted from the broadcasting station displayed on the main screen are displayed. The set subtitles can be read smoothly at the same time.

When the microcomputer 20 describes the control method when the caption position is moved by using the double window screen according to the flowchart shown in FIG. 4, the TV is turned on (S401) and the broadcast signal of the PIP mode is first transmitted. Received through the tuner 10 or the second tuner 12. (S402)

When the broadcast signal is received through the first tuner 10 or the second tuner 12, the broadcast signal of the received PIP mode is output so that the viewer can watch the screen.

At this time, the microcomputer 20 determines whether the viewer has a unique number (ID) for the subtitles in the broadcast signal received by the program set while watching the broadcast signal.

If the broadcast signal does not have a unique number (ID) for the subtitle as determined in step S404, the microcomputer 20 outputs a control signal to the PIP processing unit 60 to output the PIP processing unit 60 and the image processing unit 40. Through processing the video signal through the CRT (50) main screen, the viewer can continue to watch the broadcast signal in the PIP mode (S403).

However, as a result of the determination in step S404, the broadcast signal carries a unique number (ID) for the caption, and the PIP processing unit 60 displays the received caption on the CRT 50 main screen together with the video signal on the main screen. By processing the video signal through the image processing unit 40 and output to the main screen of the CRT 50, the viewer can read the subtitles transmitted from the broadcasting station while watching the broadcast signal of the PIP mode as the main screen (S403).

At this time, when the subtitle transmitted from the broadcasting station is displayed on the main screen, when the viewer inputs data for adjusting the color of the screen or data for adjusting the volume through the key input unit 22, the microcomputer 20 may adjust the first tuner 10. Alternatively, a double window is implemented to divide the data received from the second tuner 12 and the data input from the key input unit 22 (S409).

When the double window is implemented, the microcomputer 20 may display the subtitle position processing unit 70 of FIG. 3 and the conversion IC 80 as described above in order to display the data input by the viewer by the key input unit 22 on the sub-screen. The data input by the viewer is displayed on the sub-screen of the CRT 50 through the switching IC 90, the PIP processor 60, and the image processor 40.

If the broadcasting station inputs a unique number for displaying the subtitle on the main screen and the data input by the viewer is displayed on the sub-screen, the microcomputer 20 asks whether to end watching the TV. Repeated from one process (S403), if you want to end watching TV, turn off the power to end watching TV.

As described above, the present invention provides an apparatus and a control method for preventing the overlapping of subtitles when a subtitle is simultaneously input using a double window screen in a PIP mode of a television receiver. When the viewer inputs data to be adjusted by the key input unit to adjust the volume or color, the subtitle of the input data is sub-screened when the subtitle of the input data overlaps with the subtitle displayed on the main screen. By preventing the overlapping of the subtitles displayed on the main screen to provide a more stable subtitles to the viewer has the effect to watch a more lively screen.

In the above description, the caption position moving apparatus and the control method using the double window screen according to the exemplary embodiment of the present invention have been described. However, the present invention is not limited thereto, and various modifications can be made by those skilled in the art.

Claims (2)

A first tuner 10 receiving a general broadcast signal transmitted from a broadcasting station through an antenna, a second tuner 12 receiving a PIP mode broadcast signal, and a first tuner 10 and a 12th tuner 12 Receives a broadcast signal received by the first tuner 10 and a broadcast signal processed by the microcomputer 20, processes a video signal, and processes a video signal. An image processor 40 for outputting color data of the image signal and the reproduced image signal, a broadcast signal of the PIP mode received by the second tuner 12, and a broadcast signal and image processor 40 processed by the microcomputer 20; PIP processing unit 60 for receiving the composite video signal processed in the PIP mode, and outputs the color data to the image processing unit 40, and the image signal processed by the image processing unit 40 on the screen The CRT 50 to be displayed and the broadcast processed by the microcomputer 20 A television receiver comprising a sound processor 30 for processing a voice signal of a signal and a speaker 32 for outputting a voice signal processed by the sound processor 30, wherein the first tuner 10 or the second receiver is provided. When the tuner 12 receives a broadcast signal assigned with a unique number for displaying the caption, the control signal of the microcomputer 20 sets the caption position of the data input by the viewer on the sub-screen to process the color of the set caption. A caption position processing unit 70, a conversion IC 80 for converting the color of the caption processed by the caption position processing unit 70 into a luminance (monochrome) signal, a luminance signal and a video cassette recorder converted by the conversion IC 80; Subtitling position moving device using a double window screen, characterized in that the switching to switch the signal input from the input to the PIP processing unit (60). Receiving the broadcast signal of the PIP mode by the TV is turned on (S401) (S402), and watching the broadcast signal of the received PIP mode when the broadcast signal is received in step S402 (S403), and watching the broadcast signal Determining whether there is a unique number (ID) for the caption from the broadcasting station (S404), and if there is no unique number (ID) for the caption as a result determined in step S404, the broadcast signal of the PIP mode is watched (S403). If there is a unique number for the subtitle, displaying the received subtitle on the CRT screen with the video signal on the main screen (S405), and ending the TV watching after displaying the subtitle with the video signal on the main screen in step S405. Determining whether or not to do so (S406), and if not watching TV in step S406, continue watching the broadcast signal of the PIP mode (S403), and turning off the TV power when terminating the TV watching ( S407) to the TV control method of the PIP mode In operation S405, the viewer determines whether there is data input by the viewer while the caption is displayed on the main screen together with the video signal (S408), and when the caption is displayed as a result of the determination in step S408. If there is no input data, the received subtitle is displayed on the CRT screen together with the video signal on the main screen (S405), and if there is data input by the viewer, a double window for dividing the screen is implemented (S409) and step (S409). If a double window is implemented, the subtitle position movement control method using the double window screen to display only the data input by the viewer on the sub-screen and perform step (S406).