KR100237243B1 - Caption video system of mode memory type - Google Patents

Abstract

The present invention relates to a caption TV and VCR, in particular to avoid the cumbersome operation of the remote control key every time to conveniently use the function of the caption, caption decoder on the output side of the video detection circuit connected to the video audio switching circuit , The caption processor and the image controller in series, and the caption processor is connected to the main microcomputer through a receiving diode that recognizes the remote control signal of the remote controller, and a power backup is installed between the main microcom and the caption processor. Determining whether to specify a caption mode by using a memory device connected to the memory device; If a caption mode is specified, entering a caption mode into the caption processor; The caption processor reading detailed option information on the caption mode from the memory device; Caption output method according to the mode memory, characterized in that it comprises the step of outputting the caption data on the screen by controlling the OSD in accordance with the option information.

Description

Mode memory caption video device

1 is a block diagram of a conventional caption imaging apparatus.

2 is a block diagram of a caption output method according to the mode memory of the present invention.

3 is a flow chart for automatic caption switching and option setting of FIG.

4 is a flow chart for caption mode designation and detailed option change and storage of FIG.

* Explanation of symbols for main parts of the drawings

1: antenna 2: tuner

3: intermediate frequency amplifier circuit 4: voice detection circuit

5: Video audio switching circuit 6: Speaker

7: Image Detection Circuit 8: Image Processing Circuit

9: RGB switching circuit 10: Screen

11 caption decoder 12 caption processor

13: Image control unit 14: Remote controller

15: Receive Diode 16: Main Microcom

17: power backup 18: mode memory device

The present invention relates to a caption TV and a VCR, and more particularly, to a caption output method according to mode memory, which makes it possible to conveniently use a function of a caption by avoiding cumbersome key manipulation of a remote controller every time.

Recently, captions for foreign language study and hearing impaired people have been performed by displaying the subtitles of the images as subtitles using the empty time period during the vertical blanking interval of the TV.

In a similar way to teletext, the caption data was recorded in the 21st horizontal line of the first field of the TV's vertical regression time (VBI). From now on, caption-capable TVs in the United States are legalized, and video tapes including caption data are now available. After that, caption laser discs will be sold as well as TV broadcasts.

In the conventional caption imaging apparatus, as shown in FIG. 1, the intermediate frequency amplifier circuit 3 connected to the antenna 1 through the tuner 2 is connected to the image audio switching circuit 5 through the voice detection circuit 4. And an output side of the intermediate frequency amplifying circuit 3 to a video audio switching circuit 5 through a video detection circuit 7, and the video audio switching circuit 5 outputs audio. Connected in parallel to the image processing circuit 8, the RGB switching circuit 9, and the screen 10 for outputting the image, and the output side of the image detection circuit 7 is a caption decoder 11, a caption processor 12 ) Is connected to the image control unit 13 connected to the RGB switching circuit (9), the caption processor 12 through the receiving diode (15) for recognizing the remote control signal of the remote controller (14) Was linked to.

In the conventional caption imaging apparatus, the TV signal received from the antenna 1 is tuned through the tuner 2, and the tuned TV signal is passed through the intermediate frequency amplification circuit 3 and the image detection circuit 7. A signal was detected, and this video signal was outputted to the screen 10 via a video audio switching circuit 5, an image processing circuit 8, and an RGB switching circuit 9, and the audio signal was an intermediate frequency amplification circuit 3. ), The audio detection circuit 4 and the video audio switching circuit 5 are output to the speaker 6.

On the other hand, the caption signal detected by the image detection circuit 7 was input to the caption decoder 11, and this caption signal was decoded and the caption data was input to the caption processor 12. At this time, the caption user specified whether to select the caption mode by using the remote controller 14, and the selection of the caption mode was input to the main microcomputer 16 through the receiving diode 15, and the main microcom 16 ) Inputs the selection of the caption mode to the caption processor 12. The caption processor 12 receives the selection of the caption mode and controls the image control unit 13, and the image control signal is an RGB switching circuit (9). ) And the caption subtitle broadcast was output on the screen 10, and the caption processor 12 transferred various situations of the caption broadcast to the main microcomputer 16.

In general, when a caption module including the caption decoder 11, the caption processor 12, and the image control unit 13 is included in a TV in a conventional caption imaging apparatus configured as described above, the caption TV is referred to as a caption TV. When built, it was called a caption VCR.

Currently, these caption functions are gradually diversified according to the user's needs in simple caption subtitles (white text on a black background, constant font and size, and position of subtitles).

That is, firstly, the display style is being changed from the function simply expressed in the subtitle to the display style. For example, the roll-up function is displayed by increasing the line by line, and the pop-on displaying the subtitle at a time. Pop-On), and Point-On function that displays characters one by one. Second, caption subtitles displayed on the four lines at the bottom of the screen can be displayed on the top four lines of the screen. Third, the caption caption displayed in white letters on the current black background can be expressed in various colors, and italic expression function, under-line function and , Flash expression, etc. are becoming possible.

However, in the conventional caption imaging apparatus as described above, when caption TV broadcasting or video tape is to be watched, it is inconvenient to designate the caption mode as a remote controller every time. There was a hassle of having to specify the caption mode every time, and when the broadcast or the tape did not have a caption signal, the operation for selecting the caption mode of the remote controller was meaningless, and the detailed options of the caption mode gradually varied. As the user became more eager to select, the user was asked to be able to watch in the selected option mode unless he or she changed the options by designating them according to their own preferences among various options.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems as described above, and relates to a caption TV and a VCR, and in particular, a mode memory device to automatically switch caption modes and detailed caption options so as to reduce the cumbersome operation of the remote controller every time. The present invention provides a caption output method in accordance with mode memory for easily storing a function in a caption.

Hereinafter, the technical configuration of the present invention in detail.

In the caption output method according to the mode memory according to the present invention, as shown in FIG. 2, an intermediate frequency amplification circuit 3 connected to the antenna 1 through a tuner 2 is converted into a video voice through a voice detection circuit 4. Circuit 5, and the output side of the intermediate frequency amplifying circuit 3 is connected to the video audio switching circuit 5 through the video detection circuit 7, and the video audio switching circuit 5 outputs audio. An image processing circuit 8, an RGB switching circuit 9, and a screen 10 for outputting an image are connected to the speaker 6 in parallel, and the output side of the image detection circuit 7 is a caption decoder 11. , A caption processor 12, and an image control unit 13 connected to an RGB switching circuit 9, the caption processor 12 receiving a reception diode 15 for recognizing a remote control signal of a remote controller 14. Using what is connected to the main microcomputer 16 through the same as the conventional. However, the present invention is to determine whether to specify the caption mode by using the addition of the mode memory device 17 is installed between the main microcom 16 and the caption processor 12, the power backup 18 is installed. Wow; If the caption mode is specified, inputting the caption mode to the caption processor; The caption processor reading detailed option information on the caption mode from the memory device; The step of outputting the caption data on the screen by controlling the OSD according to the option information characterized in that the technical configuration.

The mode memory device 17 uses a separate RAM, or uses a RAM of the main microcom 16 or the caption processor 12.

In addition, the mode memory device 17 selects the caption mode referred to by the main microcomputer 16, the display style and the character characteristics (color, font, font size, subtitle position, etc.) referenced by the caption processor 12. ) Is remembered.

In the caption output method according to the mode memory of the present invention, as shown in FIGS. 2 to 4, the TV signal received through the antenna 1 is tuned through the tuner 2, and the tuned TV signal is When the video signal is detected through the intermediate frequency amplifier circuit 3 and the video detection circuit 7, and the caption signal is included in the video signal detected by the video detection circuit 7, the signal is a caption decoder ( 11), the data is sliced in the caption decoder 11, and digital data of 2 bytes / field is sent to the caption processor 12. At this time, when the caption mode is selected in the remote controller 14, the main microcom 16 transmits a caption mode enable command to the caption processor 12 according to the signal, which is the mode memory device 17. ) Accordingly, the main microcom 16 automatically gives the caption processor 12 a caption mode switch / non-switch command without giving a mode enable / disable command to the remote controller 14 thereafter. .

Meanwhile, detailed options of the caption mode, the display style and the number of lines or character characteristics of positions displayed on the screen, are stored in the mode memory device 17 by the caption processor 12. Thereafter, even if the user does not specifically change the option, the caption processor 12 is controlled according to the option with reference to the mode memory 17. That is, when the TV or the VCR is powered on, the caption mode designation status is sent to the main microcomputer 16, and the caption processor 12 is automatically sent to the caption processor 12 with the automatic mode switching and the detailed options of the caption. Used to specify detailed options. Subsequently, when the user changes the caption mode designation state or the option contents, the changed options are stored in the mode storage element 17 and control is performed in accordance with the later stored state. Here, the battery back-up 18 is required to store the caption mode designation stored in the mode memory 17 and the detailed options without being destroyed even at power-off.

As described above, the caption output method according to the mode memory of the present invention, by using a device connected by adding a mode memory device is installed between the main microcom and the caption processor, the same content every time in the caption TV and VCR Reduces the cumbersome operation of the remote controller's key setting options, and automatically saves the caption mode and the caption's detailed options in the mode memory, making it easier to use the caption's functions. This is useful for automatic mode switching and automatic conversion of teletext detailed options (Magazine No., etc.).

Claims (1)

Determining whether to specify a caption mode; If the caption mode is specified, inputting the caption mode to the caption processor; The caption processor reading detailed option information on the caption mode from the memory device; Caption output method according to the mode memory, characterized in that it comprises the step of outputting the caption data on the screen by controlling the OSD according to the option information.