KR19980030873A - Television receiver with caption caption resize - Google Patents

Abstract

The present invention relates to a television receiver having a caption caption size adjustment function that allows a user to selectively adjust the size of caption characters output as captions. Caption ID detecting means for separating and detecting a caption image storing means, wherein the caption image storing means stores a three-dimensional region of a character image corresponding to each caption ID code in a normal size, a size enlarged by a predetermined ratio, and a size reduced by a predetermined ratio Control means for controlling the entire apparatus and selecting and controlling a shaped image to be read from the caption image storing means on the basis of an output signal of the function selecting means; detecting by the caption ID detecting means under control of the control means; Caption IC for reading and outputting a child-shaped image corresponding to the caption code, the caption image storage means, A caption OSD generating means for generating and outputting color tone signals (R, G, B) and blanking signals (C ') for outputting the corresponding character shapes on the screen based on the shape image data output from the caption IC. It is characterized by.

Description

Television receiver with caption caption resize

The present invention relates to a television receiver having a caption function, and more particularly, to a television receiver having a caption caption size adjustment function that allows a user to selectively adjust the size of caption characters output as captions.

In line with the trend of so-called 'internationalization' or 'globalization', the enthusiasm for learning foreign languages is increasing. As the 'information age' has exploded, the number of computers with multimedia functions has exploded. (CAPTION) The caption function media developed to enhance the educational effect such as listening and speaking, which are important for foreign language learning, by checking the contents of the original language without dubbed through foreign language subtitles displayed on the screen. In the case of (MEDIA), the number is increasing.

1 is a block diagram showing the internal structure of a typical caption-capable television receiver. In FIG. 1, reference numeral 1 denotes an antenna for receiving an airwave broadcasting signal, and 2 denotes an antenna received by the antenna 1. A tuner for tuning a viewing channel among the broadcast signals, 3 is an IF amplifier for amplifying and outputting an intermediate frequency (IF) signal output from this tuner (2), and 4 is amplified by this IF amplifier (3). And a P / S separation unit for separating and outputting an image intermediate frequency (PIF) signal and an audio intermediate frequency (SIF) signal from the intermediate frequency signal.

Further, reference numeral 5 denotes a voice detector for detecting a voice signal from a voice intermediate frequency (SIF) signal separated and output from the P / S separator 4, and 6 denotes a voice output from the voice detector 5. Although not shown for the signal, a voice processor for performing voice processing such as bass, treble, volume, etc. according to a control signal from the microprocessor 16, which will be described later. It is an audio amplifier which amplifies the audio signal processed by the processor 6 and outputs it through the speaker 8 connected to the rear stage.

On the other hand, reference numeral 9 is an image detector for detecting an image signal from an image intermediate frequency (PIF) signal output from the P / S separation unit 4, and 10 is an image signal output from the image detector 9 Color, tint, brightness, and the like are processed according to control signals from the microprocessor 16 for R (Red), G (Green), and B (Blue). ) Is an image processor that outputs a signal.

Reference numeral 14 is a remote control device having a predetermined function key for selecting a caption function, and 15 is a receiving unit for receiving an infrared signal transmitted from the remote control device 14 and converting it into an electrical code signal. Is a microprocessor as a control unit which controls the entire apparatus based on the code signal output from the receiving unit 15.

On the other hand, reference numeral 20 detects a caption ID code data signal carried on 21H horizontal scanning section of a broadcast signal according to a control signal output from the microprocessor 16, and processes the detected data signal to process caption captions. Is a caption decoder for outputting R, G, B and blanking signals C ', and 11 denotes the R, G, B and luminance signals Y and the caption decoder 20 output from the image processor 10. Mixer (MIXER) for mixing and outputting the output R, G, B and blanking signal (C '), 12 is a CRT for driving the CRT (13) connected to the rear end based on the signal output from the mixer (11) It is a driving unit.

That is, the conventional caption-capable television receiver having the above-described configuration has the caption ID code data from the broadcast signal as the microprocessor 16 controls the caption decoder 20 as the user selects the caption mode through the remote control device. As the signal is extracted and processed, the viewer can check the dialogue in the original language through the caption output on the screen.

On the other hand, while watching a foreign currency using the caption function can be seen that sometimes the video screen is obscured by subtitles, if the viewer's position is not far from the screen of the characters that are output through the caption caption By reducing the size slightly, it is possible to reduce the damage of the video screen.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a television receiver with a caption caption size adjustment function that allows a user to selectively adjust the size of caption characters output as captions.

1 is a block diagram showing the internal configuration of a typical caption function television receiver;

2 is a block diagram showing the internal configuration of a caption-capable television receiver according to an embodiment of the present invention;

3 is an external perspective view illustrating the appearance of the remote control device 24 shown in FIG.

4 is a view illustrating a screen output state of the caption caption adjusted by the caption caption caption adjusting function according to the present invention.

******* Explanation of symbols on the main parts of the drawings *******

1 antenna 2 tuner (TUNER)

3: IF amplification unit 4: P / S separation unit

5: voice detector 6: voice processor

7: voice amplifier 8: speaker

9: Image detector 10: Image processor

11 Mixer 12 CRT drive unit

13: CRT 14,24: remote control device

15,25: receiver 16,26: microprocessor

20: Caption decoder 27: Caption ID detection unit

28: caption image storage unit 29: caption IC

30: caption OSD generation unit

A television receiver having a caption caption size adjustment function according to the present invention for realizing the above object comprises caption ID detection means for separately detecting a caption ID code signal from a broadcast signal received by an antenna according to a predetermined control command, and each caption ID. Caption image storage means, wherein the character image of the character corresponding to the code is stored in three areas of normal size, enlarged size by a predetermined ratio and reduced size by a predetermined ratio, and controls the entire apparatus. Control means for selecting and controlling a shaped image to be read from the caption image storing means based on an output signal, and caption image storing means for storing a shaped image corresponding to the caption code detected by the caption ID detecting means under control of the control means. Based on the caption IC read out from and outputted from the caption IC, and the image data output from the caption IC. Including the hue signal (R, G, B) and a blanking signal (C ') to produce output Caption OSD generating means for outputting an on-screen jajahyeong characterized by consisting of,

That is, according to the present invention having the above configuration, when the user selects the size of the caption character through the remote control device or the like, the control unit reads the caption image of the corresponding character size based on the received caption code, and outputs the caption character. As a result, the user can select and output the caption subtitles of the appropriate size for the viewing position.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention.

FIG. 2 is a block diagram showing the internal structure of a caption-capable television receiver according to an embodiment of the present invention, in which components which perform the same functions as those shown in FIG. 1 are given the same reference numerals, and a detailed description thereof will be omitted. Let's do it.

In FIG. 2, reference numeral 24 denotes a remote control apparatus further provided with a predetermined function key for allowing a user to select a size of a character outputted as a caption in caption mode as illustrated in FIG. Receiving unit for receiving the infrared signal transmitted from the device 24 and converts it into an electrical code signal, 26 is a microprocessor as a control unit for controlling the operation of the overall device based on the code signal output from the receiver 25 to be.

Further, reference numeral 27 denotes a caption ID detection unit for separating and detecting a caption ID code signal from a composite video signal (CVS) output from the image detector 9, and 28 corresponds to each caption ID code. The caption image storage unit stores a character image of a character. The caption image storage unit 28 is a character enlarged in a predetermined ratio with a first caption image storage unit 28a in which a child image having a conventional normal character size is stored. The second caption image storage unit 28b stores a magnetic image of a size and a third caption image storage unit 28c stores a magnetic image of a character size reduced in a predetermined ratio.

On the other hand, reference numeral 29 is read from the caption image storage unit 28 under the control of the microprocessor 26 based on the caption code signal detected by the caption ID detection unit 27 and corresponds to the corresponding caption ID code. The caption IC outputs the image data (FONT), and 30 is the color tone signal (R, G,) for outputting the corresponding character shape on the screen based on the image data (FONT) data output from the caption IC 29. B) and a caption OSD generating unit for supplying the blanking signal C 'to the mixer 11 side.

Next, the operation of the device having the above configuration will be described.

After the user manipulates the remote control device 24 to select a caption function and selects a caption function, the microprocessor 26 controls the caption ID detection unit 27. The caption ID code data is extracted from the composite video signal CVS output from the image detector 9. The extracted caption ID code data is transmitted to the caption IC 29.

The caption IC 29 reads and outputs a child image corresponding to the ID code data from the first caption image storage unit 28a based on the caption code received from the caption ID detection unit 27. The OSD generator 30 receives the image data output from the caption IC 29 and supplies the color tone signals R, G, and B and the blanking signal C ′ corresponding thereto to the mixer 11. .

As a result, a caption subtitle of a normal size is not output on the screen output through the CRT 13, as shown in FIG.

On the other hand, the function key (24a) provided in the remote control device 24 is to be operated in a toggle (toggle) mode, the user who was watching the caption caption function key (24a) provided in the remote control device 24 Pressing once to select the subtitle enlarged by a predetermined ratio, the microprocessor 26 controls the caption IC 29 to the second caption image storage unit 28b for the caption code data extracted thereafter. It will be controlled to read the shape image from. As a result, the caption subtitles outputted on the CRT 13 are outputted as captions enlarged at a predetermined ratio compared to caption subtitles having a normal size, as shown in FIG.

If the size of the caption subtitle is felt too large in view of the screen size of the large screen, when the user selects the function key 24a of the remote control device 24 once more, the microprocessor 26 causes the caption IC. (29) is controlled so that the caption code data extracted afterwards is adjusted so that the shape image is read out from the third caption image storage unit 28c. As a result, as shown in (c) of FIG. 4, the caption subtitles reduced by a predetermined ratio are output on the CRT screen, thereby reducing the damage of the video screen obscured by the subtitles.

That is, according to the embodiment, the user can selectively adjust the size of the caption character output as the caption.

As described above, according to the present invention, a TV receiver having a caption caption size adjustment function, which allows a user to selectively adjust the size of caption characters output as captions, can be considered in consideration of the trend of gradually increasing the screen size. When capturing the foreign currency by using the caption function, the video screen is sometimes obscured by subtitles, and the size of the characters output through the caption subtitles is slightly increased if necessary, such as when the viewing distance is far. By setting, the caption subtitles can be adjusted to facilitate viewing.

Claims (1)

Caption ID detecting means for separately detecting a caption ID code signal from a broadcast signal received by the antenna according to a predetermined control command; Caption image storage means for storing a character image of a character corresponding to each caption ID code into three areas of a normal size, a size enlarged by a predetermined ratio, and a size reduced by a predetermined ratio; A control means for controlling the entire apparatus and selecting and controlling a shaped image to be read from the caption image storing means based on the output signal of the function selecting means; A caption IC for reading and outputting a cap-shaped image corresponding to the caption code detected by the caption ID detecting means from the caption image storing means under the control of the control means; A caption OSD generating means for generating and outputting color tone signals (R, G, B) and blanking signals (C ') for outputting the corresponding character shapes on the screen based on the shape image data output from the caption IC. A television receiver having a caption caption size adjustment function.