JPH06335023A - Recorder, reproduction device and recording medium - Google Patents

Abstract

PURPOSE:To obtain the color resolution equal to that of a movie. CONSTITUTION:A High Vision camera 2 picks up a video image projected by a film projector of, e.g. 60 frames/sec for 70mm video image to generate a R(red) video signal, a G(green) video signal, and a B(blue) video signal. R, G, B high definition optical disk recorders 4R, 4G, 4B record the R, G, B video signals outputted by the High Vision camera 2 onto R, G, B High Vision optical disks by, e.g. 30MHz resolution respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device for recording and reproducing a video signal, a reproducing device, and a recording medium used for these devices.

[0002]

2. Description of the Related Art In the conventional high definition (high definition) VTR, the maximum value of the resolution of the Y video signal is 30 NHz,
The maximum value of the resolution of the (RY) and (BY) video signals is 15 MHz. Moreover, in the conventional high-definition (high-definition) optical disk device, the maximum value of the resolution of the Y video signal is 20 NHz, and the maximum value of the resolution of the (RY) and (BY) video signals is 10 MHz.

[0003]

DISCLOSURE OF THE INVENTION The above-mentioned conventional high quality V
TR and high-definition optical disc devices, compared to movies,
Especially, there is a problem that the color resolution is poor.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a recording device, a reproducing device, and a recording medium that can obtain a color resolution equivalent to that of a movie.

[0005]

The recording apparatus according to the present invention is provided with R
Video signal generating means for generating a video signal, a G video signal and a B video signal (for example, the camera 2 in FIG. 1), and three generated recording media for different R video signals, G video signals and B video signals. And recording and recording means with the same resolution (for example, high-quality optical disk recording devices 4R, 4G and 4B for R, G and B in FIG. 1).

The reproducing apparatus of the present invention is a reproducing means for reproducing the R video signal, the G video signal and the B video signal recorded at the same resolution on three different recording media (for example, the reproducing means).
High-quality optical disc reproducing device 12 for R, G and B of FIG.
R, 12G and 12B) and the reproduced R video signal,
Timing correction means for storing the G video signal and the B video signal and simultaneously outputting the corresponding R video signal, G video signal and B video signal (for example, TBC in FIG. 3).
(Time base collector) circuits 20R, 20G and 2
0B).

The three recording media forming a pair of the present invention are characterized in that the R video signal, the G video signal and the B video signal are recorded at the same resolution.

[0008]

In the recording apparatus of the present invention, the generated R video signal, G video signal and B video signal are recorded in three different recording media at the same resolution. Therefore,
By setting the resolution to, for example, 30 MHz, a color resolution equivalent to that of a movie can be obtained.

In the reproducing apparatus of the present invention, the R video signal, the G video signal and the B video signal recorded at the same resolution on three different recording media are respectively reproduced, and the reproduced R video signal, G video signal and The B video signal is stored, and the corresponding R video signal, G video signal, and B video signal are simultaneously output. Therefore, by setting the resolution to, for example, 30 MHz, it is possible to obtain a color resolution equivalent to that of a movie.

In the three recording media forming the pair of the present invention, the R video signal, the G video signal and the B video signal are respectively recorded with the same resolution. Therefore, by setting the resolution to, for example, 30 MHz, it is possible to obtain a color resolution equivalent to that of a movie.

[0011]

FIG. 1 shows the construction of an embodiment of the recording apparatus of the present invention. The high-definition camera 2 captures an image projected by, for example, a film projector of a 70 mm movie of 60 frames / sec, and generates an R (red) image signal, a G (green) image signal and a B (blue) image signal.

The R high-quality optical disk recording device 4R records the R video signal output from the camera 2 on the R high-vision optical disk with a resolution of 30 MHz. When recording the R video signal onto the R hi-hibition optical disc, the disc recording device 4R outputs a time code Tc indicating a series of absolute times sequentially generated by the time code generator 8 in accordance with the reference clock signal from the reference clock 6. , As shown in FIG. 2A, while adding to the corresponding R video signal,
Multiple recording of pilot signals.

The G high-quality optical disc recording device 4G records the G video signal output from the camera 2 on the G high-vision optical disc at a resolution of 30 MHz. When recording the G video signal on the G hi-hibition optical disc, the disc recording device 4G outputs a time code Tc indicating a series of absolute times sequentially generated by the time code generator 8 according to the reference clock signal from the reference clock 6. , As shown in FIG. 2B, while adding to the corresponding G video signal,
Multiple recording of pilot signals.

The B high-quality optical disc recording device 4G records the B video signal output from the camera 2 on the B high-definition optical disc at a resolution of 30 MHz. When recording the B video signal on the B hi-hibition optical disc, the disc recording device 4B outputs a time code Tc indicating a series of absolute times sequentially generated by the time code generator 8 in accordance with the reference clock signal from the reference clock 6. , As shown in FIG. 2C, while adding to the corresponding B video signal,
Multiple recording of pilot signals.

FIG. 3 shows the construction of an embodiment of the reproducing apparatus of the present invention. The high-quality optical disk reproducing device 12R for R is
The R video signal, the time code Tc, and the pilot signal recorded by the recording device 4R of FIG. The separation circuit 14R is used in the reproduction device 1
Upon receiving the reproduction signal output from 2R, the pilot signal is output to write clock 16R and rotation control unit 18R, and the R video signal and time code Tc are output to TBC (time base collector) 20R.

Write clock 16R outputs a write clock signal according to a pilot signal. TBC20R is
The R video signal and the time code Tc supplied from the separation circuit 14R are written in the internal memory according to the write clock signal from the clock 16R. Rotation control unit 18R
Compares the pilot signal supplied from the separation circuit 14R with the reference clock signal supplied from the reference clock 22 to control the rotation of the HDTV optical disk drive motor of the disk reproducing device 12R.

The time code generator 24 outputs a time code Tc indicating a series of absolute times according to the reference clock signal output from the reference clock 22. TBC20
The R reads the R video signal to which the time code Tc supplied from the generator 24 is added from the built-in memory and outputs it. The D / A converter 26R converts the R video signal output from the TBC 20R into an analog signal. R
The projector for R 28R receives the analog R video signal from the D / A converter 26R, and emits light indicating the R video,
Project on a screen (not shown).

The high-quality optical disk reproducing device 12G for G is
The G video signal, the time code Tc, and the pilot signal recorded by the recording device 4G of FIG. 1 are reproduced on the R high-definition optical disk. The separation circuit 14G receives the reproduction signal output from the reproduction device 12G, outputs the pilot signal to the write clock 16G and the rotation control unit 18G, and outputs the G video signal and the time code Tc to the TBC (time base collector) 20G. Output.

Write clock 16G outputs a write clock signal according to a pilot signal. TBC20G is
The G video signal and the time code Tc supplied from the separation circuit 14G are written in the built-in memory according to the write clock signal from the clock 16G. Rotation control unit 18G
Compares the pilot signal supplied from the separation circuit 14G with the reference clock signal supplied from the reference clock 22 to control the rotation of the high-vision optical disk drive motor of the disk reproducing device 12G.

The TBC 20G reads out the G video signal supplied with the time code Tc from the generator 24 from the built-in memory and outputs it. D / A converter 2
The 6G converts the G video signal output from the TBC 20G into an analog signal. The G projector 28G receives the analogized G image signal from the D / A converter 26G and projects light indicating the G image on a screen (not shown).

The high-quality optical disk reproducing device 12B for B is
The B video signal, the time code Tc, and the pilot signal recorded by the recording device 4B of FIG. 1 are reproduced on the B high-definition optical disc. The separation circuit 14B receives the reproduction signal output from the reproduction device 12B, outputs the pilot signal to the write clock 16B and the rotation control unit 18B, and outputs the B video signal and the time code Tc to the TBC (time base collector) 20B. Output.

Write clock 16B outputs a write clock signal according to a pilot signal. TBC20B is
The B video signal and the time code Tc supplied from the separation circuit 14B are written in the internal memory according to the write clock signal from the clock 16B. Rotation control unit 18B
Compares the pilot signal supplied from the separation circuit 14B with the reference clock signal supplied from the reference clock 22 to control the rotation of the high-vision optical disk drive motor of the disk reproducing device 12B.

The TBC 20B reads the B video signal supplied with the time code Tc from the generator 24 from the built-in memory and outputs it. D / A converter 2
6B converts the B video signal output from the TBC 20B into an analog signal. The B projector 28B receives the analogized B image signal from the D / A converter 26B and projects light indicating the B image onto a screen (not shown).

As mentioned above, in the embodiment of FIG.
Since the R video signal, the G video signal and the B video signal to which the same time code is added, which are supplied from the time code generator 24, are simultaneously output from the TBCs 20R, 20G and 20B, the corresponding R video signal and G video signal are output. It is possible to obtain an image that exactly matches the B and B image signals.
Also, for example, three separate high-definition optical discs
Since the R video signal, the G video signal, and the B video signal recorded at a high resolution of 0 MHz are reproduced and video is displayed based on these signals, a color resolution equivalent to that of a movie can be obtained.

In the above embodiment, the R video signal, the G video signal and the B video signal are recorded separately on the three discs. However, for example, using a high definition VTR,
R video signal, G video signal and B video on three separate tapes
The video signal may be recorded separately.

[0026]

According to the recording apparatus of the present invention, the generated R video signal, G video signal and B video signal are recorded on three different recording media at the same resolution. By setting it to 30MHz,
Color resolution equivalent to that of movies can be obtained.

According to the reproducing apparatus of the present invention, the R video signal, the G video signal, and the B video signal recorded at the same resolution on three different recording media are respectively reproduced, and the reproduced R video signal is reproduced.
The video signal, the G video signal and the B video signal are stored, and the corresponding ones of the R video signal, the G video signal and the B video signal are output at the same time. Therefore, by setting the resolution to 30 MHz, for example, An equivalent color resolution can be obtained.

According to the pair of three recording media of the present invention, the R video signal, the G video signal, and the B video signal are recorded at the same resolution, so that the resolution is set to, for example, 30 MHz. Color resolution equivalent to that of movies can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a recording apparatus of the present invention.

FIG. 2 is a diagram showing a recording format of R, G, and B video signals of the recording apparatus of FIG.

FIG. 3 is a block diagram showing a configuration of an embodiment of a reproducing apparatus of the present invention.

[Explanation of symbols]

2 camera 4RR high-quality optical disc recording device 4G G high-quality optical disc recording device 4B B high-quality optical disc recording device 6 reference clock 8 time code generator 12RR high-quality optical disc reproducing device 12G G high-quality optical disc reproducing device 12B High-quality optical disk reproducing device for B 16R, 16G, 16B Write clock 20R, 20G, 20B TBC (time base collector) 22 Reference clock 24 Time code generator

Claims (5)

[Claims] 1. A video signal generating means for generating an R video signal, a G video signal and a B video signal, and the generated R video signal, G video signal and B video signal are the same on three different recording media. A recording apparatus comprising: a recording unit for recording at a resolution. 2. Reproducing means for respectively reproducing an R video signal, a G video signal and a B video signal recorded at the same resolution on three different recording media, and the reproduced R video signal, G video signal and B video. And a timing correction means for storing signals and simultaneously outputting corresponding R video signals, G video signals and B video signals. 3. A pair of recording media in which an R video signal, a G video signal and a B video signal are respectively recorded at the same resolution. 4. The recording medium according to claim 3, wherein the recording medium is a disk-shaped recording medium. 5. The recording medium according to claim 3, wherein the recording medium is a tape-shaped recording medium.