KR100221871B1 - Recording method and device of vtr - Google Patents

Abstract

According to the present invention, if the input of a still key is detected a predetermined number of times in a state in which a video playback is paused in a videotape recorder, the service information for the recording time is recorded so that the convenience of playback and editing is recorded. Determining whether the key signal detected during playback of the video from the stored magnetic tape is a signal for pausing the playback operation; and if the key signal is for pausing playback in the process, the playback operation Detecting whether the input of the still key is continuously applied a predetermined number of times while the playback operation is paused, and if the input of the still key is continuously detected in the process, the non-flag is set. At the same time, it enters the recording mode and proceeds to record the video from inside and outside. It is characterized by including.

Description

Method for recording video tape recorder and apparatus therefor

The present invention relates to a videotape recorder, and more particularly to a video index of a time point when a still key input is detected continuously a predetermined number of times while an arbitrary video playback is paused. A system and method for recording a videotape recorder in which information of a search system (VISS) is recorded so as to provide convenience for reproduction and editing.

In general, a video tape recorder is a device device that records information such as video, audio, and data on a magnetic tape, and reproduces recorded information. It is showing.

As a result of the development of video tape recorders, when recording information such as video, audio, and data on a magnetic tape, which is a recording medium, the signals of the Vis are simultaneously recorded. The title of the information to be displayed.

As described above, the magnetic tape, which is a recording medium, is divided into a video data area, an audio data area, and a control data area. The video data area and the audio data area are recorded in a diagonal direction with respect to the head, which is a recording and reproducing means. In the data area, control data is recorded in the tape travel direction.

The control data area stores vis data indicating starting positions of data blocks, so that a user can quickly and conveniently access desired data on a magnetic tape on which a predetermined image is recorded using the vis data to reproduce and reproduce desired data. Editing can be performed.

An operation for recording arbitrary data in a conventional video tape recorder apparatus will now be described with reference to FIG.

In the power-on state in which the operating power is supplied to each circuit part of the video tape recorder, the control means analyzes the key signal applied from the key input means (step 10), and displays an image on which the applied key signal is reproduced. It is judged whether or not the signal is for setting the still mode in which the function of the playback play is paused in the state of maintaining (step 11).

In the still mode in step 11, the control means sets the still preg to " 1 " (high) (step 12), enters the still mode in the playback mode (step 13), and controls the playback means to reproduce the video. The playback operation is paused while the display is held so as to hold still images on the display means (step 14), and wait for a key selection signal of the key input means.

If a predetermined key signal is detected by the key input means, the detected key signal is analyzed as a key signal for releasing the still mode (step 15). The drive is restarted to proceed with the continuous playback operation (step 16).

If the key signal detected in step 11 is not a key signal for setting the still mode, it is determined whether it is a key signal for setting the recording mode (step 17). After entering, the bisflag is set to "1" (high) according to the re-entered bis signal and recording of the input image is performed (step 19).

As described above, the conventional video tape recorder records information on the point where the recording starts only when there is a bis signal input at the same time as the recording function key is input through the key input means. There was a cumbersome problem with the input of the service.

An object of the present invention for solving the above problems is to automatically enter the recording mode when the input of a key signal to pause the current operation during the recording or playback of any video is continuously detected a predetermined number of times A video tape recorder recording method and apparatus for providing convenience to an arbitrary video recording record by automatically setting service data at that point, and providing speed and convenience for editing and playback of recorded information. To provide.

1 is a block diagram showing an apparatus for recording and reproducing a video tape recorder according to the present invention;

FIG. 2 is a flowchart of an embodiment of executing a recording mode in the present invention of FIG.

Figure 3 is a flowchart of one embodiment of executing a recording mode in a conventional video tape recorder.

* Explanation of symbols for main parts of the drawings

10: recording / playback section 20: demodulation section

30: data decompression unit 40: decoder

50: D / A Converter 60: A / D Converter

70: data compression unit 80: modulator

90: control unit 100: driver

110: motor 120: OSD driver

130: signal synthesizing unit 140: key input unit

A feature of the present invention for achieving the above object is a process of determining whether a key signal detected during playback of an image from a stored magnetic tape is a signal to pause a playback operation, and playback pause in the process. The key signal is paused, and detecting whether the input of the still key is continuously applied a predetermined number of times while the playback operation is being paused. In this case, the process includes setting a bisflag and simultaneously entering a recording mode to record an image applied from the inside and the outside.

According to another aspect of the present invention for achieving the above object, there are provided recording / reproducing means for reading video and audio information recorded in a data area of a magnetic tape, and recording audio and video information and service information in the data area. Demodulation means for demodulating the read video and audio data, and data decompression means for decompressing the demodulated data;

Decoding means for decoding the decompressed data into original data, A / D conversion means for converting analog signals for recording and recording into digital signals, data compression means for compressing video and audio signals for recording and recording, and compression. Modulating means for modulating the recorded video and audio signals into predetermined data and recording them on a magnetic tape through the recording / reproducing means, controlling means for controlling the overall operation such as reproducing, recording, and recording service information, and setting modes. Key input means, signal synthesizing means for displaying a reproduced image, and drive means for driving a magnetic tape for reproduction and recording and recording.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in FIG. 1, a video tape recorder recording apparatus according to the present invention reads video and audio information recorded and recorded in a video data area and an audio data area of a magnetic tape, and records and records recorded audio and video. A recording / reproducing section 10 for recording information in each data area and storing set service information in the data area, a demodulation section 20 for demodulating video and audio data reproduced and applied from the magnetic tape; A data decompression unit 30 which decompresses the demodulated and applied compressed video and audio signals, a decoder 40 which decodes the signal decompressed and applied through the data decompression unit 30, and the decoder 40 D / A converter 50 for converting the video and audio signals in the digital state restored by the digital signal into an analog signal, and recording applied internally and externally when the recording mode is set. An A / D converter 60 for converting video and audio signals in an analog state for recording into a digital signal, and a data compression unit for compressing video and audio signals for recording applied and compressed in the digital state to a predetermined state; 70, a modulator 80 for modulating the compressed video and audio signals into predetermined data and recording them on a magnetic tape through the recording / reproducing section 10, and recording and recording of video and audio on magnetic tape. A service that controls the operation, the reproduction operation of the recorded information, and the safe operation of each circuit, and sets the start information of the recording and information about the recorded data when a key signal for pausing a predetermined number of times is continuously detected. The controller 90 controls the code input, and drives the operation of the motor 110, which is a magnetic tape driving means, in accordance with a signal applied from the controller 90 during playback and recording. To display the use of the video tape recorder and service information on the video display means when the driver 100 and the video and audio information recorded on the magnetic tape are reproduced or any video and audio information is recorded and recorded. OSD driver 120 for driving the drive of the OSD characters, the video and audio signals reproduced through the A / D converter 50 and the signal applied through the OSD driver 120 to synthesize the display means The signal synthesizer 130 is reproduced.

In the present invention having the function as described above, the operation of the bis code input according to the continuous input of the pause signal will be described with reference to FIG. 2.

If the user inputs a key signal for playing back the image of the magnetic tape loaded in the storing means by using a function button provided on the remote control means or the video tape recorder while the power of the video tape recorder is kept on. The control unit 90 drives the motor 110 for driving the head at a predetermined speed by applying a predetermined driving pulse signal to the driver 100 side, and operates driving means for performing winding of the magnetic tape.

Therefore, the head of the recording / playback section 10 reads the video and audio information recorded in each area of the magnetic tape, and then applies predetermined data to the demodulation section 20 to demodulator 20. The data of the predetermined state is demodulated into video and audio signals and applied to the data decompression unit 30 side.

The data decompression unit 30 decompresses the demodulated and applied compressed video and audio data to a predetermined state necessary for reproducing the image, restores the data through the decoder 40, and then digitally stores the digital video and audio data. When applied to the converter 50 side, the D / A converter 50 converts the applied image and audio data into an analog signal and applies it to the signal synthesis unit 13 side.

At this time, the controller 130 forms a character for display by applying a predetermined control signal for implementing character information detected on the OSD driver 120 side to display predetermined character information corresponding to the reproduced image. The formed character information is applied to the signal synthesizer 130 side.

The signal synthesizer 130 synthesizes the video and audio signals and the text information of the applied analog state into a predetermined form and then displays the reproduced video information and text information.

As described above, in the state of reproducing the image (step 101), the control unit 90 detects an input of the key signal from the key input unit 140 (step 102), and when the applied key signal is detected, the key signal. It is determined whether or not the still mode setting signal for pausing the reproduced video is paused (step 103).

If the key signal detected in step 103 is a key signal for setting the still mode, the control unit 90 sets the still flag to " 1 " (high) and then applies a control signal to the driver 100 to wind the tape. Is paused and only the image at the current playback position of the magnetic tape is displayed via the display means (step 104).

After that, when the controller 90 detects a key signal for releasing the still code from the key input unit 140 (step 105), the controller 90 controls the driver 100 to re-drive the tape winding operation to reproduce the image. Proceed continuously.

If the key signal of the key input unit 140 detected in step 103 is not a key signal for setting the still mode, it is determined whether the input key signal is a signal for setting the pause mode (step 106), and the pause mode is determined. If the key signal is set, the driving means for executing the tape winding is stopped through the control of the driver 100 as described above, and at the same time, the reading operation of the information recorded in the area of the magnetic tape is stopped to pause the reproducing operation.

At this time, the control unit 90 determines whether the steel key signal is continuously input from the key input unit 140 a predetermined number of times, preferably twice, in succession (step 107), and the input of the steel key is continuously detected. Is set to "1" (high) and then set the previously set still flag to "0" (low) according to the set program. The flag is cleared (step 109) and the recording mode is entered.

When the videotape recorder enters the recording mode while the playback operation is paused, the image signal applied from the inside and the outside is digitally new-hole converted by the A / D converter 60 and then applied to the data compression unit 70. The data compressing unit 70 converts the image signal, which is converted into a digital signal according to the control signal applied from the control unit 90, into a predetermined state and then applies it to the modulator 80 side.

The modulator 80 applies an image data for recording that is compressed and applied to the recording / reproducing section 10 side, and records the video data in a predetermined area of the magnetic tape which is kept in a pause state through the recording means. Proceed to step (step 110).

At this time, when the recording starts to proceed, the service code for the time point at which the recording is recorded is also recorded in the data area at the same time, thereby providing convenience in reproduction and editing after the reproduction is completed.

If a key signal for releasing recording is detected by the key input unit 140 in the state of recording as described above (step 111), the ongoing recording mode is cleared, and then the display enters the standby mode of playback or recording.

If the key signal detected in step 106 is not a key signal for pause but a key signal for recording mode (step 112), the bisflag is set to "1" (high) according to the setting of the key signal, and then In accordance with the operation as described above, the recording and recording of the video is performed.

As described above, the videotape recorder according to the present invention automatically enters the recording mode when a continuous signal of the still key signal is input a predetermined number of times after the pause of the playback operation is selected while the playback operation is in progress. Since the bisflag that recognizes the information at the point of recording start is set to "1" (high), the video provides convenience for recording, and convenience and speed for editing playback after recording.

Claims (6)

Determining whether a key signal detected during playback of an image from a stored magnetic tape is a signal for pausing a playback operation; If the key signal is for reproducing pause in the process, stopping the reproducing operation and detecting whether the input of the still key is continuously applied a predetermined number of times while the reproducing operation maintains the pause; Recording of a video tape recorder comprising: setting a bisflag and entering a recording mode and recording an image applied from the inside and the outside when a still key input is continuously detected in the process. Way. The method according to claim 1, wherein if the key signal input while the playback operation is in progress is a signal of a still key, the still flag is set to pause the playback of the video, the video is displayed at the stopped time, and the release key signal is input. A method of recording a videotape recorder, characterized by performing continuous playback. The method according to claim 1, wherein if the key signal input in the process is a signal for setting a recording mode, the video signal is recorded. The method of claim 1, wherein the continuous input of the still key is set to about two to three times in the process. 1. A video tape recorder comprising: recording / reproducing means for reading video and audio information recorded in a data area of a magnetic tape, and recording audio and video information and service information in said data area; Demodulation means for demodulating the read video and audio data; Data decompressing means for decompressing the demodulated data; Decoding means for decoding the decompressed data into original data; A / D conversion means for converting an analog signal for recording and recording into a digital signal; Data compression means for compressing video and audio signals for recording and recording; Modulation means for modulating the compressed video and audio signals into predetermined data and recording them on a magnetic tape through the recording / reproducing means; Control means for controlling overall operations such as reproduction and recording of video and recording of service information; Key input means for setting a mode; Signal synthesizing means for displaying a reproduced image; And a drive means for driving a magnetic tape for reproducing and recording recording. 6. The recording apparatus of a video tape recorder according to claim 5, further comprising an OSD drive means for driving character information to instruct the display means of the recording start information upon reproduction of the recorded magnetic tape.

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