JP2000036934A - Video signal recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reproduce a video signal in both displays on a standard display screen and a laterally long display screen by using a changeover means to select a video signal with a 1st aspect ratio or a video signal with a 2nd aspect ratio and recording the selected signal on a disk. SOLUTION: High low voltages VH, VL from input terminals 13, 14 are fed to a vertical deflection coil 6 wound on a photographing camera 5 via a switching means 12 and a vertical deflection circuit 11. When a moving contact piece (a) of the switching means 12 is contacted with a fixed contact point (c), the high voltage VH is applied to the vertical deflection coil 6 to obtain a deflection width by which an aspect ratio of the display screen is 16:9 and then a video signal for a laterally long image is recorded on a VTR 10. When the moving contact piece (a) of the switching means 12 is contacted with a fixed contact point (b), the low voltage VL is applied to the vertical deflection coil 6 to obtain a deflection width by which an aspect ratio of the display screen is 4:3 and then upper and lower scanning lines are processed optically and the resulting image is recorded on the VTR 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video signal recording apparatus having the same recording contents and recorded in different formats.

[0002]

2. Description of the Related Art Conventionally, an optical disk in which video signals are recorded in the form of pits when a video signal is recorded on the disk and video information is represented by the repetition frequency of the pits has been widely used. Video discs on which video signals of one software content are recorded on both sides are also commercially available.

A display means for viewing the contents of such video software uses a normal NTSC video signal having 525 scanning lines on a standard screen having a display screen aspect ratio of 4: 3.

[0004]

Recently, display means for a horizontally long screen having an aspect ratio of a display screen of 16: 9 has begun to be used for a high-definition television or the like. For this reason, video discs that can be viewed on a screen having an aspect ratio of 19: 9 are being developed.

The aspect ratio of such a display screen is 16:
When a video disc that can be viewed on the screen of No. 9 is commercially available, the aspect ratio of the display screen generally used conventionally is 4: 4.
The third video disc must also be sold with the same contents, and the purchaser must purchase two copies of the same contents, so that the storage space at the store and at home is doubled, the cost is high, and sales and It was difficult to purchase.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to enable a video signal to be reproduced by both a standard television display screen and a landscape display screen. It is an object of the present invention to provide a video signal recording device capable of recording a video disc.

[0007]

According to the present invention, there is provided an input means for inputting a video signal having a first aspect ratio, and a video signal having the same content as the video signal having a first aspect ratio and having a first aspect ratio. Input means for inputting a video signal having a second aspect ratio different from the ratio, input signal switching means for switching between a video signal having a first aspect ratio and a video signal having a second aspect ratio, Recording means for recording the video signal switched by the signal switching means on a single disk.

According to the video signal recording apparatus of the present invention, an image which can be displayed on either a landscape image having a display screen aspect ratio of 19: 9 or a standard image having a display screen aspect ratio of 4: 3 is recorded. Therefore, a video signal recording device capable of recording a compatible disc can be obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which a video disk used in a video signal recording apparatus according to the present invention is constituted by an optical disk will be described below with reference to FIGS.

FIG. 1 shows an optical disk 1 of a sticking type. The aspect ratio of the display screen is 1 on one disk surface.
A video signal 2 for 6: 9 is recorded on the surface of the other disk in the form of pits, and a video signal 3 having the same software content as the above-mentioned video signal 2 for an aspect ratio of 4: 3 on the display screen is recorded. .

FIG. 2 shows a single optical disk having an aspect ratio of a display screen of 16: 9 on one surface of the disk.
A video signal 3 having the same software content as the video signal 2 for use and the above-mentioned video signal 2 having a display screen aspect ratio of 4: 3 is recorded in the form of pits.

In this way, the standard (4: 3) and the horizontally long (1
9: 9) An imaging system for capturing a video signal for displaying a display screen will be described with reference to FIGS.

FIG. 3 is a system diagram for obtaining a video disk video signal for a standard and landscape screen from movie information such as 70 mm or cinema scope.

In FIG. 3, a subject 4 is a movie for a cinemascope, and is imaged by an imaging camera 5. This imaging camera 5
Is a three-panel CCD camera, for example, which can obtain three primary color signals of red (R), green (G) and blue (B) at the output of the camera 5, but FIG. 3 shows only the R video signal.

The video signal is amplified through a preamplifier 7 and a process amplifier 8, converted into various types of signals by an encoder 9, supplied to a VTR 10, and recorded.

A vertical deflection coil 6 is wound around the imaging camera 5, and the vertical deflection coil 6 receives high and low voltages V _H and V _L from input terminals 13 and 14 via a vertical deflection circuit 11 as well as the switching means 12. Supplied.

When the movable contact piece a of the switching means 12 is tilted to the fixed contact c side, the high voltage V _H is supplied to the vertical deflection circuit 11, and the vertical deflection width is set to the aspect ratio of the display screen of 16:
A deflection width of 9 and a television image signal of 525 scanning lines for a horizontally long screen are recorded on the VTR 10.

The movable contact piece a of the switching means 12 is shown in FIG.
In this case, the low voltage _VL is supplied to the vertical deflection coil 6 through the vertical deflection circuit 11, and the vertical deflection width becomes the deflection width of the aspect ratio of the display screen of 4: 3. Scan lines are processed optically and 525 lines x 3 /
4 and recorded on the VTR 10.

In the above example, the operation vertical width of the imaging camera 5 is performed by angle-of-view processing. However, as shown in FIG. 4, electronic processing may be performed electronically by an electronic editing device or the like.

FIG. 4 shows a case in which the subject 4 captures a general landscape or the like with the imaging camera 5. For example, an R video signal obtained from the imaging camera 5 is amplified by the process amplifier 8 of the preamplifier 7 and 9 is recorded on the VTR 10. The video signal recorded on the VTR 10 is supplied to the electronic editing device 15.

The electronic editing device 15 has a frame memory and the like, which converts the aspect ratio and partially cuts the video signal during one horizontal scanning period, and outputs the edited result to the master VTR 1.
6. FIG. 5 shows the operation of the electronic editing device 15 shown in FIG.
A description will be given with reference to the waveform and aspect ratio conversion screens of FIGS.

First, the subject 4 is imaged by the imaging camera 5,
Assuming that the display screen has an aspect ratio of 16: 9 and a video signal of 525 scanning lines is obtained as shown in FIG. 5A, such information is recorded in the VTR 10 as it is.

A video signal of, for example, one frame between the vertical synchronizing signals recorded on the VTR 10 is displayed on a horizontally long screen display means as shown by a broken line in FIG.

The aspect ratio 1 recorded on the VTR 10
The video signal for 6: 9 is stored in a memory in the electronic editing device 15 by dividing 525 scanning lines between vertical synchronization signals into three as shown in FIG. 5B.
Compressed to / 4, the writing / reading speed to / from the memory is controlled so that the vertical direction of the display screen becomes the black level 17 as shown by the solid line in FIG. 6, and the aspect ratio of the display screen becomes 4: 3. The recorded video signal is recorded on the master VTR 16.

In the above-described embodiment, a method has been described in which a black portion is formed in a vertical direction on a display screen having an aspect ratio of 16: 9 to record an NTSC or CCIR video signal having 525 scanning lines. In the electronic editing apparatus 15 shown in FIG. 4, the display screen having an aspect ratio of 16: 9 is cut in the left-right direction to have 525 scanning lines in the NTSC system or CCIR.
A method of recording a video signal of the system will be described with reference to FIGS.

FIG. 7A shows that the display screen has an aspect ratio of 16:
Reference numeral 9 denotes a signal in one horizontal scanning period of a video signal having 525 scanning lines, and the image of the subject 4 is converted into a VT via a camera 5 → a preamplifier 7 → a process amplifier 8 → an encoder 9.
When the video signal is recorded in R10 as shown in FIG. 7A and supplied to the electronic editing device 15, the left and right ends of the video signal in one horizontal scanning period are stored in the memory in the electronic editing device 15 as shown in FIG. As shown in FIG. 8, the image is cut and the aspect ratio conversion is performed so that the aspect ratio of the display screen becomes 3: 4.
The video signal whose aspect has been converted in this way is the master VTR
16 is recorded.

As described above, the VTR 15 or the master VTR 1
FIG. 9 shows a system diagram for recording the signals having the aspect ratios 4: 3 and 16: 9 recorded on the video disc 1 on the video disc 1, and FIG. 10 shows a system diagram of the reproducing system.

The display screen of aspect ratio 16: 9 movable contact piece a of the switching means SW ₁ To record a video signal
To the fixed contact b side, and the video signal from the VTR 10
An audio signal 20 to be superimposed on the video signal is supplied to a synthesizing circuit 22 via an M modulator
Is supplied to the synthesizing circuit 22 so that the video FM modulated wave and the audio FM modulated wave are synthesized.

The output of the synthesizing circuit 22 is supplied to a limiter 23, and the limiter 23 applies an amplitude limit to the optical modulator 25 so as to facilitate recording on a disk.

In the optical modulator 25, the light of the laser 24 is turned on and off in accordance with the limiter signal, and the light is irradiated on the master disc 1a, thereby exposing the photoresist applied on the master disc 1a to form the pits. create.

Reference numeral 26 denotes a moving plate, 27 denotes a motor for rotating the master, and 28 denotes a motor for driving the moving plate.

[0032] Further, the aspect ratio of the display screen is 4: To record a video signal having 525 scanning lines with 3 to defeat movable contact piece a of the switching means SW ₁ to the fixed contact c side, FIG. 1
Alternatively, as shown in FIG. 2, exposure may be performed on the back side of the master 1a or on different areas on the same plane.

The optical disk of the present invention obtained in large quantities by injection based on such a master is reproduced by a normal reproducing system shown in FIG. In FIG. 10, the optical disc 1 is placed on a main table rotated by a motor 29,
Pit information picked up by the optical pickup 30 is supplied to a movable contact piece a of the switching means SW ₂ through a signal demodulation circuit 31.

When the movable contact piece a is tilted toward the fixed contact b, a video signal can be displayed on the display means 34 for an aspect ratio of 16: 9. When the movable contact piece a is tilted toward the fixed contact c, the aspect ratio can be displayed. A video signal can be displayed on the display means 35 for 4: 3.

In FIG. 10, reference numeral 32 denotes an operation control circuit, and reference numeral 33 denotes a servo circuit such as a motor.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

[0037]

According to the present invention, it is possible to obtain a video signal recording apparatus capable of displaying an image on both display means for an aspect ratio of 16: 9 and a 4: 3 with a single reproduction player. .

[Brief description of the drawings]

FIG. 1 is a side sectional view showing one embodiment of a video disk used in a video signal recording device of the present invention.

FIG. 2 is a perspective view showing another example of a video disk used in the video signal recording device of the present invention.

FIG. 3 is a system diagram showing one embodiment of an image pickup system of the video signal recording device of the present invention.

FIG. 4 is a system diagram showing another embodiment of the video signal recording device of the present invention.

FIG. 5 is an explanatory diagram of a frame waveform according to the present invention.

FIG. 6 is an explanatory view (I) of an aspect ratio conversion screen according to the present invention.

FIG. 7 is an explanatory diagram of a video signal waveform according to the present invention.

FIG. 8 is an explanatory view (II) of an aspect ratio conversion screen of the present invention.

FIG. 9 is a system diagram of a recording system of the video signal recording device of the present invention.

FIG. 10 is a system diagram of a reproduction system of the video signal recording device of the present invention.

[Explanation of symbols]

1 ‥‥ optical disk, 2 ‥‥ signal for 16: 9 aspect ratio, 3 ‥‥ signal for 4: 3 aspect ratio, 4 ‥‥ subject,
5mm camera, 6mm vertical deflection coil, 10V
TR, 11 ‥‥ vertical deflection circuit, 15 ‥‥ electronic editing device,
16 ‥‥ master VTR, display means for 34 ‥‥ 16: 9,
35 ‥‥ 4: 3 display means

Claims (1)

[Claims] 1. An input means for inputting a video signal having a first aspect ratio, and a second means having the same content as the video signal having the first aspect ratio and different from the first aspect ratio. Input means for inputting a video signal having an aspect ratio of; a video signal having the first aspect ratio;
Video signal recording apparatus, comprising: input signal switching means for switching between video signals having the same aspect ratio; and recording means for recording the video signal switched by the input signal switching means on a single disk. .