KR19980084389A - Subtitle position scroll display device of wide television - Google Patents

Abstract

According to the present invention, a screen display position can be scrolled in various ways in response to an arbitrary number of key manipulations by a user for a subtitle included in a predetermined broadcast program played on a wide screen having a 16: 9 screen size on a wide television. A caption position scroll display device for a wide television is provided.

To this end, the present invention performs the oscillation operation by the horizontal / vertical synchronous signal (HS, VS) separated from the synchronous separation section 20 to obtain the signal from the image signal processed by the image processing means (10, 12, 14) For horizontal / vertical deflection operation of the deflection yoke 18 of the CRT 18 so that the scan deflection for the R / G / B scan beam is transversed so that a wide screen is reproduced on the CRT 16 screen. In a wide television having a deflection driver 22 driven, subtitle extraction processing means 24 for extracting a subtitle signal included in a video signal according to a predetermined broadcast program from the image processing means 10, 12, and 14; And adjusting the screen reproduction position of the caption signal extracted through the caption extraction processing means 24 in synchronization with the horizontal / vertical synchronization signals HS and VS from the synchronization separator 20. Subtitle playback position adjusting means 26 for outputting to 10, 12, 14, the synchronous separation A counter means 28 for counting the syringe intervals of the video signal based on the horizontal / vertical synchronous signals HS and VS from the counter 20 to generate a scan counting output, and the CRT to the video signal of the predetermined broadcast program. (16) function setting means (30) for performing key operation for scrolling and changing the screen reproduction position of the subtitle signal reproduced on the screen, and scrolling the screen reproduction position with respect to the subtitle signal reproduced on the CRT (16) screen; The memory means 34 which stores the control program data for controlling the variable operation is determined by the scanning counting output from the counter means 28, and the syringe program of the video signal is determined, and the control program data from the memory means 34 is determined. The playback position of the caption signal through the caption playback position adjusting means 26 is set according to the scroll variable operation of the screen playback position with respect to the caption signal of the function setting means 30. A control means 36 for controlling to be rolled and variable, and generating a blanking signal for blanking the screen area of the CRT 16 screen on which the playback position is scrolled and variably displayed by the control of the control means 36; It is characterized by comprising a blanking signal generating means 38.

Description

Subtitle position scroll display device of wide television

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caption position scroll display device of a wide television. More particularly, the present invention relates to a subtitle position scroll display device. A caption position scroll display apparatus for a wide television that allows scrolling and displaying the screen display position of a caption in accordance with a selection operation.

As is well known, in general televisions, a predetermined channel is selected and reproduced among a plurality of television broadcasting signals transmitted in a form of air from a plurality of television broadcasting stations. In such a television, a transmission standard of a video signal such as an NTSC system is provided. Correspondingly, it is played through a CRT (Cathode Ray Tube) CRT made of 4: 3 screen size.

On the other hand, in the case of a television that reproduces a broadcast image with such a typical 4: 3 screen size, it is difficult to reproduce a realistic and realistic image due to the limited screen size.

In view of such a conventional situation, in recent years, the screen size of the CRT CRT tube is formed to have a 16: 9 aspect ratio, and it is tuned to a video signal of a typical 4: 3 screen television broadcast processed by a tuner and processed with a video signal. The horizontal / vertical scanning of the scanned R / G / B electron beam is horizontally adjusted so that the scanned R / G / B is reproduced as a wide screen having a screen size of 16: 9, and is transmitted and received from a television station. As a 9-screen standard, wide televisions for reproducing a wide video signal in a wide screen state have been developed and put into practical use.

On the other hand, in such a wide television, according to the horizontal and horizontal characteristics of the screen size, not only is it possible to play a broadcast program that requires the horizontal aspect of a screen such as a movie broadcast, but also the caption data transmitted together from the movie broadcast. Can be extracted and displayed at a predetermined position on a wide screen.

However, in such a wide television, when playing a broadcast program in which subtitle data such as a movie broadcast is received, the display position for the subtitle on the wide screen displayed by the subtitle data is fixed, so that the viewer is active in viewing. Not only is this not guaranteed, but it also has the disadvantage of not satisfying the various viewing needs of the individual.

Accordingly, the present invention has been made in view of the above-described circumstances, and the screen corresponds to an arbitrary number of key operations by a user for a subtitle included in a predetermined broadcast program played on a wide screen having a 16: 9 screen size on a wide television. SUMMARY OF THE INVENTION An object of the present invention is to provide a caption position scroll display device of a wide television that enables scrolling and displaying various display positions.

According to the caption position scroll display device of a wide television according to the present invention, an oscillation operation is performed by a horizontal / vertical synchronous signal separated from a synchronization separating unit, and the image signal is processed through an image processing means. Wide with a deflection driver driven for horizontal / vertical deflection for the deflection yoke of the CRT so that the scan deflection for the R / G / B scan beam from the beam is transversed to reproduce the wide screen on the CRT screen. A television, comprising: caption extraction processing means for extracting a caption signal included in a video signal corresponding to a predetermined broadcast program from the video processing means, and the caption extraction processing means in synchronization with a horizontal / vertical synchronization signal from the sync separation section; Subtitle playback position adjustment outputting to the image processing means by adjusting the screen playback position of the subtitle signal extracted through the A counter means for counting the syringes of the video signal based on the horizontal / vertical synchronous signal from the synchronization separator to generate a scan counting output, which is reproduced on the CRT screen for the video signal of the predetermined broadcast program; A function setting means for performing a key operation for scrolling and changing the screen reproduction position of the caption signal, a memory means for storing control program data for controlling scroll variable operation of the screen reproduction position for the caption signal reproduced on the CRT screen, and The scanning interval of the video signal is determined by the scanning counting output from the counter means, and the playback position of the caption signal is changed by the caption playback position adjusting means based on the control program data from the memory means. Scrolls in response to the variable scroll operation of the screen playback position for A control means for controlling the control unit and a blanking signal generating means for generating a blanking signal for blanking the screen area of the CRT screen whose scrolling position is variable by the control of the control means. Provide a position scroll display device.

According to the present invention configured as described above, in a wide television which reproduces an image with a screen size of 16: 9, the screen reproduction position of the subtitle signal included in the image signal according to a predetermined television broadcasting program can be changed. The scroll control key can be scrolled and displayed in response to the number of key operations.

1 is a block diagram showing a caption position scroll display device of a wide television according to the present invention;

2 is a block diagram showing a detailed configuration of the caption reproduction position adjusting unit shown in FIG. 1 according to a preferred embodiment of the present invention;

3A to 3D are schematic diagrams showing a state in which a subtitle on a wide screen is scrolled in accordance with a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2: receiving antenna, 4: tuner,

6: Image IF unit, 8: Image detector unit,

10: image amplification unit, 12: image color signal processing unit,

14: video output unit, 16: CRT,

18: deflection yoke, 20: synchronous separator,

22: deflection driving unit, 24: subtitle extraction processing unit,

26: subtitle reproduction position adjusting unit, 28: scanning counter,

30: function setting section, 34: data memory,

36: control unit, 38: blanking signal generating unit,

40: ADC, 42: Subtitle data memory,

44: DAC, 46: control signal / clock generator.

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

1 is a block diagram showing a caption position scroll display device of a wide television according to the present invention. In the apparatus of the present invention, reference numeral 4 denotes channel channel selection data for selecting a predetermined channel from the control unit 36, which will be described later. The RF signal of the corresponding channel is tuned among the plurality of channels induced by the receiving antenna (2) by receiving the signal, and the high frequency amplification processing is performed, and the intermediate frequency signal is mixed with the local oscillation frequency signal generated by the oscillation operation by the channel tuning data. A tuner for outputting in the form of < RTI ID = 0.0 >, < / RTI >

Further, reference numeral 8 denotes an image detector which detects a video signal from the intermediate frequency-amplified television broadcast signal, and 10 denotes a multi-stage signal amplification process of the detected video signal. And an image amplifying part which performs contrast adjustment and luminance adjustment on the luminance signal from the image signal.

Also, reference numeral 12 denotes an R / G / B color signal which is subjected to band amplification of the signal amplified video signal and subjected to color subcarrier signal reconstruction processing, color synchronization processing, and color signal processing through detection of a burst signal. 14 denotes an image color signal processing unit, and 14 denotes a CRT (16) having a screen size of 16: 9 by amplifying and driving the R / G / B color signal processed by the image color signal with the luminance signal from the image amplifier 10. The period of generation of the blanking signal from the blanking signal generator 38 which describes the wide screen on the screen and the screen playback position is scrolled by the caption reproduction position adjusting section 26 to be described later to change the caption signal. The video output unit synthesizes and outputs the corresponding video signal.

Reference numeral 20 denotes a synchronous separator for separating the horizontal / vertical synchronous signals HS and VS from the image signal from the image amplifier 10, and 22 denotes horizontally by the separated horizontal / vertical synchronous signals. R / G / B scanning beam by the R / G / B color signal scanned on the screen of the CRT 16 by the deflection yoke 18 installed on the CRT 16 side by performing the vertical oscillation operation. A deflection driving unit which is deflected and driven so as to scan-transfer horizontally as a wide screen.

Further, reference numeral 24 denotes a caption extraction processor which extracts and processes the caption signal included in the video signal from the video amplifier 10 after its operation is enabled by the controller 36, which will be described later. Reference numeral 24 may be applied to any caption extraction processing means disclosed in the related art and employed for the caption extraction operation.

Also, reference numeral 26 scrolls the caption reproduction position of the caption signal extracted from the caption extraction processing section 24 in synchronization with the horizontal / vertical synchronization signals HS and VS by scroll control by the control section 36 described later. And a caption reproduction position adjustment unit for performing a reproduction position adjustment operation for varying the position. 28 denotes a counting operation by receiving the horizontal / vertical synchronization signals HS and VS separated from the synchronization separation unit 20 and counting them. An injection counter that generates an injection counting output counting the intervals between the two syringes.

As shown in FIG. 2, the caption reproduction position adjusting unit 26 converts the caption signal extracted from the caption extraction processing unit 24 at a sampling rate synchronized with the operation clock signal CK to digitally convert the caption signal. 40; recording operation is enabled by the analog-digital converter and the recording enable signal WE to record and store the digitally processed subtitle data at a recording speed synchronized with the operation clock signal CK, A caption data memory 42 for reading and outputting the caption data stored therein at a read speed synchronized with the operation clock signal CK by the read enable signal RE, and outputting the caption data memory 42; 42 is controlled by a digital-analog converter (DAC) 44 which converts the caption data read from the data into a form of an analog signal reproducible on the screen of the CRT 16 and the control unit 36 to be described later. The operation clock signal CK is generated through voltage controlled oscillation and phase comparison operation with respect to the linear synchronization signals HS and VS, and the caption data memory corresponding to the scroll variable state of the screen reproduction position of the caption signal is generated. And a control signal / clock generator 46 for generating the write / read enable signals WE and RE and the clear signal CLR for controlling the data recording and reading operations of 42.

The reference numeral 30 is composed of a matrix button unit provided in a predetermined portion of a remote controller for remote control or the main body of the main body, and performs a plurality of one-key operations so that the subtitle signal can be changed by scrolling the playback position on the screen of the CRT 16. A function setting section having a position adjusting key 32 is shown.

Also, reference numeral 34 denotes control program data for controlling a scroll variable state of the caption signal screen playback position in response to the number of key operations of the caption position adjustment key 32 provided in the function setting unit 30. 36 indicates a stored data memory, and 36 denotes that the caption position adjusting key 32 of the function setting unit 30 receives the scan counting output from the scan counter 28 and recognizes the injector interval of the video signal. When the key operation is performed to change the screen reproduction position of the caption signal, the caption reproduction position adjustment unit 26 corresponds to the number of key operations of the caption position adjustment key 32 based on the control program data of the data memory 34. Controls the controller to control scroll output of the subtitle playback position and to generate a blanking signal corresponding to the screen position of the subtitle signal whose playback position is variable. Produce.

Here, the control section 36 operates the scroll mode of the caption signal according to the number of key operations by the caption position adjustment key 32 of the function setting section 30 based on the control program data of the data memory 34. The image playback area 50 is reproduced on the screen of the CRT 16 in the first scroll mode in which the caption position adjusting key 32 is operated once. Subtitle signal 54 is reproduced on the blanking area at the bottom of the screen blanking area 52 respectively displayed at the top and bottom of the () (see FIG. 3A), and the subtitle position adjustment key 32 is operated twice. In the second scroll mode, the caption signal 54 is reproduced on the upper blanking area of the screen blanking area 52 (see FIG. 3B), and the caption position adjusting key 32 is keyed three times. In the 3 scroll mode, the image playback area 50 In the fourth scroll mode in which the caption signal 54 is reproduced on the lower area (see FIG. 3C) and the caption position adjusting key 32 is operated four times, the image reproduction area (as shown in FIG. The caption signal 54 is reproduced on the upper region of 50).

Further, reference numeral 38 blanks the caption reproduction position which is synchronized by the horizontal / vertical synchronization signals HS and VS and scrolled by the caption reproduction position adjustment unit 26 under the control of the control unit 36 and varies. The blanking signal generator generates a blanking signal for outputting the signal to the image output unit 14.

Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, when a channel of a broadcast program that requires a predetermined subtitle, such as a foreign movie broadcast, is tuned through the tuner 4 and amplified by an intermediate frequency through the image IF unit 6, the image detector 8 receives the intermediate frequency amplification. The video signal is detected and separated from the television broadcast signal, and the image amplifier unit 10 amplifies the detected video signal in multiple stages, while the image color signal processor 12 is applied to the signal amplified video signal. Through the amplification driving of the image output unit 14 through the color synchronizing process and the color signal processing through the recovery of the color subcarrier signal by the band amplification operation and the detection of the burst signal, the deflection driver ( Through the deflection drive operation of 22), a wide screen having a 16: 9 screen size is reproduced by the scanning deflection of the deflection yoke 18 provided in the CRT 16.

In this state, the caption extraction processing unit 24 extracts the caption signal from the video signal from the video amplifier 10, and the scanning counter 28 separates the horizontal / vertical synchronization signal from the synchronization separator 20. By counting (HS, VS), an injection counting output that counts the interval between syringes for the video signal is generated.

At this time, when the subtitle position adjustment key 32 of the function setting unit 30 is keyed three times, for example, to scroll and change the subtitle reproduction position with respect to the extracted subtitle signal, the control unit 36 performs the above-mentioned operation. Enables the caption extraction processing unit 24 to extract the caption signal, and recognizes the syringe interval of the video signal through the scan counting output from the scan counter 28, and is provided in the function setting unit 30. Recognizing the three times key operation state of the subtitle position adjustment key 32 and controlling the subtitle reproduction position adjustment unit 26 to scroll and change the screen reproduction position of the subtitle signal based on the control program data of the data memory 34. Done.

Accordingly, the control signal / clock generator 46 of the caption reproducing position adjusting unit 26 controls the scroll variable of the caption signal from the control unit 36 and digitally converts the caption data from the ADC 40. After generating the record enable signal WE and the operation clock signal CK for recording and storing the data in the caption data memory 42, the caption signal can be reproduced on the screen scanning area of the scroll-changing caption playback position. As the read enable signal RE for reading out is generated, the caption data memory 42 reads the caption data such that the caption signal is synchronized between the syringes of the screen scanning area where the scroll variable is changed, and then the DAC 44 is read. Through analog conversion, it is outputted.

On the other hand, the blanking signal generator 38 synchronizes the caption reproduction position adjusting unit 26 under the control of the control unit 36 in synchronization with the horizontal / vertical synchronization signals HS and VS from the synchronization separating unit 20. A blanking signal for blanking the caption reproduction position of the scroll-changed caption signal is output to the image output unit 14.

Accordingly, as shown in FIG. 3C, the playback position is scrolled on the lower screen area of the video playback area 50 to reproduce the variable caption signal 54 on the CRT 16 screen.

Here, according to the present invention having the above-described embodiment, the subtitle signal is scrolled to the playback position as shown in FIG. 3C as the subtitle position adjusting key 32 of the function setting unit 30 is operated three times. However, as the caption position adjusting key 32 is operated once, twice and four times, the screen playback position of the caption signal is changed to the playback position as shown in FIGS. 3A, 3B, and 3D. Also in operation | movement, it shows as the same embodiment as the operation | movement of said embodiment.

According to the present invention made as described above, when the screen playback of the caption signal in the wide television, the playback position of the caption signal can be scrolled and changed in response to the number of key operations by the viewer, so that the viewer is active in viewing This guarantees that the viewing effect can be enhanced.

Claims (3)

R / G / B from the image signal processed by the image processing means (10, 12, 14) by performing the oscillation operation by the horizontal / vertical synchronization signals (HS, VS) separated from the synchronization separator (20). A deflection driver driven for horizontal / vertical deflection operation of the deflection yoke 18 of the CRT 18 to adjust the scanning deflection of the scanning beam so as to be transversely so that a wide screen is reproduced on the CRT 16 screen. In wide television with 22, Subtitle extraction processing means (24) for extracting a subtitle signal included in an image signal according to a predetermined broadcast program from said image processing means (10, 12, 14); The image processing means 10 is adjusted by adjusting the screen reproduction position of the caption signal extracted through the caption extraction processing means 24 in synchronization with the horizontal / vertical synchronization signals HS and VS from the synchronization separating unit 20. Subtitle playback position adjusting means (26) outputted at Counter means 28 for generating a scanning counting output by counting between the syringes of the video signal on the basis of the horizontal / vertical synchronous signals (HS, VS) from the synchronous separation unit 20, Function setting means (30) for performing a key operation for scrolling and varying the screen reproduction position of the caption signal reproduced on the screen of the CRT 16 with respect to the video signal of the predetermined broadcast program; Memory means (34) storing control program data for controlling a scroll variable operation of a screen reproduction position for a subtitle signal reproduced on the CRT (16) screen; The scanning interval of the video signal is determined by the scanning counting output from the counter means 28, and based on the control program data from the memory means 34, the caption reproduction position adjusting means 26 Control means (36) for controlling the playback position to be scrolled and varied in response to a scroll variable operation of the screen playback position with respect to the caption signal of the function setting means (30); And a blanking signal generating means 38 for generating a blanking signal for blanking the screen area of the CRT 16 screen in which the playback position is scrolled and variably displayed by the control of the control means 36. Subtitle position scroll display device of a wide television. 2. The caption reproducing position adjusting means (26) according to claim 1, characterized in that the subtitle reproducing position adjusting means (26) includes a data converting portion (40) for digitally converting a subtitle signal from the subtitle extracting processing means (24), and a screen reproducing position of the digital converted subtitle data. A caption data memory 42 for storing and reading in response to a variable scroll state, a data inverse converter 44 for converting caption data read from the caption data memory 42 into an analog signal capable of screen reproduction, and the The caption data memory 42 generates an operation clock signal CK under the control of the control means 36, and enables caption display to a screen position corresponding to the scroll variable state of the playback position of the caption signal. And a control signal / clock generator (46) for controlling data storage and reading speed of the caption position scroll display device of a wide television. The control means (36) according to claim 1, characterized in that the control means (36) is determined in advance by the control program data of the data memory (34) corresponding to the number of key operations of the subtitle position adjustment key (32) of the function setting means (30). A caption position scroll display for a wide television, characterized in that the playback position is variably scrolled according to the screen playback position of the caption signal.