KR0115388Y1 - Music video cassette tape - Google Patents

Abstract

The present invention relates to an audio signal of accompaniment and mantissa, and a music video tape on which a video signal is recorded. The first channel of the audio signal band is a composite audio signal of accompaniment and mantissa, and the second channel is accompaniment. This relates to a music video cassette tape on which audio signals are recorded.

Therefore, when the user plays the music video cassette tape as described above, it is possible to provide an effect of dubbing the user's own voice to the image and the music accompaniment.

Description

Music video cassette tape

1 is a diagram showing the configuration of a conventional magnetic recording and reproducing apparatus.

2 shows a video cassette tape pattern in which video / audio and control signals according to the present invention are recorded in a standard recording manner.

3 shows a video cassette tape pattern in which video / audio and control signals are recorded in a HiFi manner in accordance with the present invention.

* Explanation of symbols for main parts of the drawings

12: video signal recording and playback head 13: audio signal recording and playback head

14: control signal recording and playback head 21: audio signal band

22: video signal band 23: control signal band

The present invention relates to a video cassette tape, and more particularly, to a music video tape on which audio signals and video signals of accompaniment and mantissas are recorded.

Generally, accompaniment and mantissa and video information are recorded and reproduced on a video cassette tape by a magnetic recording and reproducing apparatus (hereinafter referred to as VTR). The accompaniment and singer sounds recorded on the video cassette tape, and the software contents indicated by the video signal are various, for example, movies, music videos, and the like, and may be classified into several types depending on the contents. In particular, since the music video tape that records the image corresponding to the contents of the lyrics as well as the song of the singer provides the image together with the music, the user can enjoy the high quality music by the realistic music or the beautiful image. However, various demands of the user are not limited to listening to such music, but are being developed into a type of software that allows users to enjoy music by inserting their own voices in the background of the realistic music described above.

On the other hand, when video and audio signals are recorded on a video cassette tape by VTR, the video cassette tape of the magnetic tape has a track in which three signal bands are recorded. That is, these signal bands each include an audio signal band (audio track), a video signal band (video track) and a control signal band (control track). At this time, the audio signal band includes separate first and second channels. In general, a music video cassette tape records a composite signal obtained by combining accompaniment and mantissas on both the first and second channels. Doing.

However, as described above, in the complex signal recording method of accompaniment sound and mantissa sound recorded in the first and second channels, it is difficult to reproduce only music and video, and cannot meet various demands of the user.

The present invention is devised to solve the above-described problem, the object of the present invention is to use a conventional VTR without modification, and to play only accompaniment sound and mantissa, video, as well as accompaniment sound and video to meet the needs of the user It is to provide a music video cassette tape that makes it possible.

A feature of the present invention for achieving the above object is a pulse wave form having an audio signal band having a first and a second channel, a video signal band in which a video signal is recorded, and a frequency at which a control signal as a reference during reproduction is preset. In a music video cassette tape composed of a control signal band recorded in the following manners, the first channel of the audio signal band is recorded with a synthetic audio signal of mantissa and accompaniment, and the second channel is recorded with an accompaniment audio signal. And selectively played back.

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

1 is a schematic drawing of a conventional standard magnetic recording and reproducing apparatus, in which a pair of video signal recording and reproducing heads 12 attached to a cylindrical head drum 11 at 180 ° positions, respectively, on top and bottom of the same support, respectively. A video signal recording and reproducing circuit (16) including an attached audio signal recording and reproducing head (13) and a control signal recording and reproducing head (14), which process signals to be recorded and reproduced through the video signal recording and reproducing head (12). A signal to be recorded and reproduced by the control signal recording and reproducing circuit 17 for recording and reproducing the control signal, which is a reference during reproduction, through the control signal recording and reproducing head 14 and the audio signal recording and reproducing head 13. And an audio signal recording and reproducing circuit 18 for processing.

In addition, although the VTR includes the full-width erasing head 15 and the capstin 19 which controls a tape delivery speed, etc., it is common and abbreviate | omits description in order to maintain simplicity.

The tape 10 travels in the direction indicated by the arrows during recording and playback, and the video signal recording and reproducing head 12, the audio signal recording and reproducing head 13, and the control signal recording and reproducing head 14 described above. Is recorded.

First, a video cassette tape pattern recorded in a normal manner is shown in FIG. 2, wherein the tape 10 includes three signal bands recorded by each of the heads 12, 13, and 14, respectively. do. The video signal band includes a video track 28 inclined at an angle, for example, 6 ° to 30 °, in a tape running direction by a pair of video recording and reproduction heads attached to the head drum 11. These video tracks 28 each correspond to one field of the TV signal, and two adjacent tracks combine to form one frame of the TV signal.

During playback and recording, two tracks are recorded and reproduced alternately by one head to provide video signal information to a display device, for example a TV monitor, by the video signal recording and reproducing apparatus 16.

Compared with the video signal recorded by such a helical scan method, when recording in the standard manner, the audio signal is recorded linearly in the tape running direction on the audio signal band 21. This is the same recording method as a general audio recording medium, and the audio signal band 21 includes signal tracks of the first channel 24 and the second channel 24. In the music video cassette cape of the present invention, a composite signal of a mantissa and an accompaniment sound is recorded in the first channel 24, and only an accompaniment signal is recorded in the second channel 25. Such recording can be made in a manner well known in the art by the recording VTR as described above, and during playback, playback of only one channel can be performed by a simple circuit to be added or by tracking control included in the existing home VTR. Can be done.

The control signal is recorded in the control signal band under the tape 10 by the control signal recording and reproducing head 14, and during reproduction, the reproducing head 12 of the video signal is accurately scanned along the track recorded on the tape 10. It is recorded as a pulse signal of a certain frequency (eg 30 Hz) that can be used to control it.

3A and 3B show a HiFi tape structure and a tape pattern, respectively. The HiFi tape includes a coating surface 33 coated on a base film 34. FIG. do. In this case, the coating surface 33 includes two coating layers, that is, the first recording layer 31 and the second recording layer 32, and the video and audio on the tape by HiFi method using the coating surface 33. When recording a signal, an FM modulated audio signal is recorded in the second recording layer 32, which is an inner layer, and a video signal is recorded in the first recording layer 31, which is an outer layer.

FIG. 3B shows a tape pattern recorded by the HiFi method, which is recorded adjacent to the audio signal band. That is, the audio signal tracks 35 and 36 are also recorded adjacent to the video track 37 in the same form as the video track 37.

Such recording can be performed by a VTR that performs recording and playback in a HiFi manner, and the HiFi type VTR is not separately shown, but is attached in pair with the playback head 12 of each video signal on the head drum described above. Head 13. In this case, the audio signal band includes a first channel 35 alternately recorded and a second channel 36 adjacent to the first channel 35. In the same manner as the standard method described above, the combined signal of the mantissa and the accompaniment sound is recorded in the first channel 35, and only the accompaniment sound signal is recorded in the second channel.

Video cassette tapes having such a tape pattern can be easily reproduced by only one channel by tracking adjustment of the VTR. Tracking adjustment is a generally known technique for adjusting the offset at which the rotating video magnetic head leaves the recorded signal track when playing back a tape recorded by another VTR during playback of a video cassette tape. By rotating, the rotation band of the video magnetic head can be moved parallel to the recording track on the tape during playback. Therefore, playback can be performed for each of the first channel or the second channel when the user requests without any device change or addition of the existing VTR.

As described above, the video cassette tape of the present invention is generally capable of selectively reproducing a signal of a desired band among audio signal bands through a VTR known in the art, thereby meeting various needs of a user without additional means. It can work.

Claims (1)

The music video is composed of an audio signal band having first and second channels, a video signal band in which a video signal is recorded, and a control signal band in which a control signal as a reference during reproduction is recorded in the form of a pulse wave having a preset frequency. The cassette tape according to claim 1, wherein the first channel of the audio signal band is recorded with a synthetic audio signal of mantissa and accompaniment, and the second channel is selectively reproduced by recording an audio signal of accompaniment sound.