KR19990047536A - How to control the character output of VSI - Google Patents

Abstract

The present invention relates to a method of controlling a character output of a VSI, which is particularly displayed on the screen when the OSD character of the user input is displayed on the screen when recording and playing the superimposed Hangul characters, etc. by the user input to the recorded video signal It would be possible.

According to the present invention, if there is a function key input in the system, the main menu screen including the Korean character input item is invoked (step 101, 102), and the user inputs a character on the menu screen including the Korean character input item. Outputting the character input screen if there is a selection (step 103, 104), and then the user checks the screen to see if there is a character selection input, recognizes if there is an input, and checks whether the character setting by the user is finished. Character combinations are stored in the RAM (steps 105 and 106), and if the user has a superimposed key input during video recording / replaying, the text message data stored in the RAM is extracted and superimposed on the video signal and outputted (steps 107 to 109). It is to provide a method of controlling the character output of VSI including a).

According to the present invention, when recording various video signals on a video tape, the user can input and use Hangul subtitles and the like, which is convenient.

Description

How to control the character output of VSI

The present invention relates to a method for controlling a text output of a VSI, which is to allow a user to record or reproduce text information superimposed on a video signal by using a VSI screen interactive OS program.

The VSI system is an electronic device that is widely used together with a TV receiver and a circuit block diagram of the conventional VSIAL system is illustrated in FIG. 1.

Here, a tuner 55 for receiving a regular broadcast signal from an antenna of a VSI system and performing channel tuning, and a phase lock loop circuit for controlling a phase locked loop (PLL) of the tuning signal provided from the tuner 55. 56, a microprocessor 54 for controlling the VSI system, an OSD 60 for generating an OSD screen, and the like.

The system also includes a memory 53 of the VSI system, a remote control receiver 52 associated with the remote control transmitter 51, a key input unit 65 for various key operations, and a deck 63 for recording / playback deck operation. And a servo unit 64, an eye unit 56, a video circuit 57, an audio circuit 58, a signal mixer 61, a TV receiver 62, and the like.

In such a conventional system, an OSD menu screen is called up through the key input unit 65 and the OSD unit 60, and thereafter, an operation of setting or selecting various functions such as time alignment, reservation recording setting, and channel alignment is performed. Among them, the form of setting screen interactive reservation recording is as follows.

In other words, the OS function menu screen is shown here. Through this screen, the user can perform setting and selection functions such as clock alignment / scheduled recording setting / channel alignment / recording and selection of a type of playback tape.

Function selection 1. Clock setting 2. Reservation recording / cancellation 3. Channel adjustment 4. Tape selection (tape remaining time) 5. Other functions 1 to 5 selection Function selection End

However, the conventional VSI system performs the above functions by using the above-described OSD function, but it is only used as a recording / reproducing function of a video / audio signal, so it is not suitable for use of such a device. It was hard to escape the constraints.

In addition, although there is a caption broadcast sent from a broadcasting station in the above system, there is a limitation in using a video program because the user can not arbitrarily edit or use only text information.

An object of the present invention is to insert a title or a necessary message by a user into a video program such as a family video program by recording the character data by the user superimposed on the video signal when recording the video program in the system as described above. I did it.

According to the present invention, a main menu screen is called if there is a function key input in the system so as to realize the object of the above example, and if the user selects a character input from the menu screen, a step of outputting a text input screen is provided. If there is a selection input, the character combination is stored in the RAM, and if the user has a superimposed key input during video recording / replay, the text message data stored in the RAM is retrieved and superimposed on the video signal and output It is characteristic of VSI's character output control method.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a circuit block diagram of a conventional Video Cassette Recorder (VCR) system having an On Screen Display (OSD) function.

2 is a system circuit block diagram related to the present invention.

3 is a waveform diagram showing a signal overlapping operation according to the present invention;

Figure 4 is an embodiment of a character overlap control program of the present invention

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

11.Key Input 12.Microcomputer

13. OS D. 14. Character Information Memory

15. Video / Audio Processing Unit 16. Deck Unit

100. Text Overlap Control Program

In other words, Figure 2 shows an excerpt of the circuit block of VSI character output control system related to the present invention.

Here, the key input unit 11 which provides various control commands and character input commands to the microcomputer 12, and if there is character information input from the key input unit 11, recognizes the character information from the character information memory 16. A microcomputer 12 is provided which controls information to be fetched and temporarily stored in the system RAM or superimposed and recorded on the tape of the deck unit 13 together with the video signal.

The microcomputer 12 further includes an audio processor 16 for generating a character input screen signal and a character output signal under its control, and a video / audio processor 14 for recording / reproducing signal processing of video / audio signals. And the deck portion 13 are connected.

In addition, the system is provided with a character overlap control program 100 as shown in FIG.

In this case, if the system has a function key input, calling up the main menu screen including the Hangul character input item (steps 101 and 102), and outputting a character input screen if the user selects a character input from the menu screen including the Hangul character input item. Steps 103 and 104 are included.

Then, when the user sees the screen and checks whether there is a character selection input, if there is an input, recognizes it and checks whether the character setting is completed by the user, and if it is finished, combines the characters and stores them in the RAM (steps 105 and 106), If a user inputs a superimposed key in the video recording / replaying process, the user may retrieve the text message data stored in the RAM and superimpose the text message data on the video signal (steps 107 to 109).

The present invention having such a configuration allows a user to arbitrarily perform a playback and recording operation of a video tape using a VSDal deck as in a conventional method using a VSIal system.

Meanwhile, when a user records a broadcast program or an external video program, text signal dubbing may be performed. In this case, when the function key is pressed through the key input unit 11, an OSD menu screen including a Hangul text input item is output. When the Hangul character input item is selected, the OSD screen of the Hangul character input stored in the character information memory 14 is output through the microcomputer 12 and the OSD 13.

The Hangul character input screen can be configured as shown in Table 2 below.

Function selection 1. Clock setting 2. Reservation recording / cancellation 3. Channel adjustment 4. Tape selection (tape time remaining) 5. Entering Korean characters 1 to 5 Selecting function selection End Enter key

When the user presses 5, the Hangul character input screen is output as shown in Table 3 below.

□ I'm going to be trapped in each and every one of them. Sword Sword ............................ 괆 Guam. ...... → ↑ ↓ Move cursor Enter key Next screen 1 key

Then, when the user sees the screen and selects □ by pressing the volume control key and the channel up / down key and presses the enter key, the character data is stored in the RAM, and in the next screen, 2350 characters such as KS C 5601 code are continuously displayed. The characters are displayed and can be selected.

Therefore, when the user wants to record a predetermined program on the tape, the user can display the necessary message during the recording with the OSD signal superimposed with the video signal.

For example, the selected Hangul character data is recorded on the tape of the deck unit 16 through the current video / audio processing unit 14 when the message is a content such as "silence of the title amounts of 1997/10/29". The content is to superimpose and record the message signal outputted through the OS unit 13 together with the program signal.

In addition, when the text signal is superimposed on the video signal as described above, a pseudo vertical synchronization such as b is extracted from the video signal as shown in FIG. 3A, and a control timing signal of the microcomputer 12 such as c is generated.

In the control timing signal section, the text data signal d output from the OS 13 may be superimposed on the video signal as e.

On the other hand, the above operation is performed by the microcomputer 12 with the character overlap control program 100 as shown in Figure 4, which is the main menu including the Hangul character input items as shown in Table 2 if there is a function key input in the system Call up the screen (steps 101 and 102).

If the user selects a character input on the menu screen including the Hangul character input item, the character input screen shown in Table 3 is output (steps 103 and 104).

Afterwards, when the user sees the screen and checks whether there is a text selection input, the user recognizes the input if there is an input and checks whether the text setting is completed by the user. If there is an overlap key input in the process, text message data stored in the RAM is fetched and superimposed on the video signal to be output (steps 107 to 109).

The present invention can be recorded when the text signal by the user input in the tape recording mode of VSI system can be superimposed on the recorded video signal arbitrarily and can be used when various subtitles or messages required in the family video program, etc. .

Claims (1)

Calling up the main menu screen including the Hangul character input item when the function key is input in the VSI system including the key input part, the microprocessor, the OSD part, and the like. Outputting a character input screen if there is a character input selection on the screen (steps 103 and 104), and then checking whether the user has a character selection input by looking at the screen and recognizing this if there is an input and checking whether the character setting by the user is finished. If it is done, the character combination is stored in the RAM (steps 105 and 106), and if the user has a superimposed key input in the video recording / replaying process, the text message data stored in the RAM is fetched and superimposed on the video signal and output. Character output control of VSI, comprising steps 107 to 109) and the like. Way