JP3206066B2 - High-speed dubbing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-speed dubbing system for video tape dubbing.

[0002]

2. Description of the Related Art Conventional high-speed dubbing systems (for example, 2
In double-speed dubbing, the number of rotations of the cylinder and capstan of the master VTR is increased to twice that at the time of recording, the master tape is played on track, and the number of rotations of the cylinder and capstan is doubled as in the case of the master VTR. In general, a method of dubbing at twice the speed at half the recording time of the master tape by recording with a slave VTR is used.

[0003] However, in the above configuration and method,
Master V digital VTR with high image quality and high sound quality
When used as a TR, 90 to 100 during normal playback
Hz, the rotation speed is 180-200H even if the track is reproduced at 2 × speed on track.
must be raised to z. When the master tape is reproduced under such conditions, the vibration and durability of the cylinder, the contact state of the tape / head, the frequency characteristics of the head, and the like are deteriorated, and the image quality and sound quality are deteriorated. In addition, it requires enormous development costs to solve them, making it difficult to put it into practical use within the framework of the conventional method, and making it impossible to take advantage of the high image quality and high sound quality of digital VTRs. have.

As a method for solving the above problem, a VTR having a high cylinder rotation speed at the time of normal reproduction, such as a digital VTR, is used as a master VTR so that double speed dubbing can be performed at a normal cylinder rotation speed. A dubbing system has been proposed in Japanese Patent Application No. 3-64464.

As shown in FIG. 7, this double-speed dubbing system has N (N is a positive integer;
In this case, N = 2) master tapes and N master VTRs 1 and 2 for reproducing each of the master tapes in a different phase from each other at N times the tape speed at the time of recording.
And N discontinuous video or audio reproduction signals obtained from the N master VTRs, and 1 / N
And a rate converter 4 for outputting one continuous video or audio signal that has been time-axis-compressed.

[0007] In FIG. 7 of the conventional example, samples 1 and 2 are sampled at four times the frequency (4 fsc) of the color subcarrier, and digitally record an 8-bit quantized digital NTSC video signal with three tracks per field.・ Master VTR for playback, 3 for digital cable,
Reference numeral 4 denotes a rate converter for joining the reproduced data of the two master VTRs 1 and 2 into one, 5 and 7 denote coaxial cables, 6
Is a distributor and 8 is a slave VTR.

[0007] The conventional double speed dubbing system configured as described above operates as follows.

First, master tapes having the same contents recorded on the master VTRs 1 and 2 are loaded one by one, and a variable mode (a method in which a reproducing head is mounted on a piezo element and a recorded track is tracked by a method is used. Different phases, for example, different fields are reproduced in parallel at twice the speed of the variable speed reproduction mode). In this example, the master VTR1 is assigned to playback of odd fields, and the master VTR2 is assigned to playback of even fields.

FIG. 2 shows the state of the reproduction track at this time. The upper part of FIG. 2 shows a reproduction track of the master VTR1, and the lower part shows a reproduction track of the master VTR2. Since the master VTRs 1 and 2 used in this example use three tracks for recording one field, three consecutive tracks are units of reproduction. Therefore, at the time of 2 × speed reproduction in the variable mode, the track indicated by three continuous solid lines in FIG. 2 is a reproduction track to be reproduced, and three continuous broken lines positioned between these solid lines are not reproduced. It is a playback track. That is, the master VTR 1
Reproduces 1, 3, 5 fields, and the master VTR 2 reproduces 2, 4, 6 fields.

The master VTRs 1 and 2 reproduce the assigned fields at the timings shown in the upper and middle sections of FIG. The horizontal axis in FIG. 8 is time (seconds), T is 1 / 59.94 seconds in the field period, and the upper part is the master VTR1.
Data and its field number,
The middle row shows data input from the master VTR 2 and its field numbers. Taking 0 seconds to T seconds as an example, it shows that the master VTR 2 reproduces the field 2 simultaneously with the timing at which the master VTR 1 reproduces the field 1.

The data output from the master VTRs 1 and 2 is transmitted to the rate converter 4 via the digital cable 3, respectively.

The rate converter 4 is composed of a field memory, its control circuit and process circuit, and a D / A converter. One word reproduced by the input master VTRs 1 and 2 has a rate of 8 bits and 4 fsc. Video data, which is parallel data, is stored in the field memory at a rate of 4 fsc, and two fields of data are sequentially read at a rate of 8 fsc using a read clock (8 fsc) that is twice the sampling clock at a cycle of 1 field T seconds. Is read out.

As shown in the lower part of FIG. 8, the output of the rate converter 4 is a signal obtained by compressing the data input one field cycle T seconds earlier by half on the time axis and joining the data. can get. A synchronous signal and a color burst signal are added to the video data read in this way by a process circuit, converted into an analog video signal by a D / A converter, and output.

[0014]

The order of video signals reproduced from a VTR that performs variable-speed reproduction using a piezo element or the like cannot be obtained in the correct field order (including color frames) as in normal reproduction. From the VTR, it is necessary to output such a reproduced output in a correct field. For this purpose, the luminance signal and the chrominance signal are separated, the chrominance signal is demodulated, and in the case of odd / even reverse, the odd field and the even field are converted by line complementation, and the chrominance signal is re-modulated to become a normal color frame. Then, the signal is added to the luminance signal to form a correct field order, and a composite synchronizing signal and a burst signal are added and output.

When a general-purpose broadcast / business VTR is used as the master VTR of the double-speed dubbing system shown in FIG. 7, the above-mentioned output is received by the rate converter, and the luminance signal and the chrominance signal are separated again to produce the chrominance signal. After demodulation, each one
The time axis is compressed to / 2 and the order of the odd and even fields is normalized, and the time axis is compressed to 1/2 to obtain continuous luminance and chrominance signals. A signal is added, the color signal is modulated in a form that matches the input form of the slave VTR, and a corresponding time axis compressed burst signal is added and output.

In such a configuration, both the master VTR and the rate converter separate the luminance signal and the chrominance signal, perform color demodulation,
Since the normalization of the field by the modulation and the line complementation is performed, the image quality deteriorates, and the rate converter becomes complicated.

An object of the present invention is to solve the above-mentioned problems and to provide an apparatus capable of performing high-speed dubbing with a simple structure and high image quality.

[0018]

In order to solve this problem, a high-speed dubbing apparatus according to the present invention provides a high-speed dubbing apparatus which records the same information in the same form without separating a composite video signal into a luminance signal and a chrominance signal. (N is a positive integer) From N master VTRs each having one master tape mounted thereon, by synchronous operation, at N times the tape speed of normal playback, at a phase different from each other, and N playback units equal to one playback unit. Means for reproducing video information without a separation process of luminance information and color information, and N master VTRs from each of the N master VTRs.
When receiving video information including luminance information and color information, which is a reproduction output of the TR, and information for associating the vertical / horizontal position and the phase of the color sub-transport of one reproduction unit of the video information, the N master VTRs The obtained N pieces of discontinuous video information are time-axis-compressed to 1 / N of the time recorded on the master tape. In addition to the information,
A composite synchronizing signal and a burst signal that match the continuous time axis compressed video information created from the horizontal position and the color subcarrier phase information are added, processed into a recording format of the slave VTR, and output to the slave VTR. Rate conversion means.

Further, the high-speed dubbing apparatus of the present invention uses N (N is a positive integer) master tapes which record the same information in the same form without separating the composite video signal into a luminance signal and a chrominance signal. From the N master VTRs, each of which has been mounted, by synchronous operation, at a tape speed N times the normal reproduction, at different phases, and at a ratio of 1 reproduction unit to N reproduction units,
Means for reproducing video information without a process of separating luminance information and color information, and N master VTRs
Receiving video information including luminance information and color information, which is a reproduction output of one master VTR, and information for associating the vertical / horizontal position of one reproduction unit of the video information and the phase of color sub-conveyance, After N pieces of discontinuous video information obtained from the master VTR are separated into luminance information and color information, they are time-axis-compressed to 1 / N of the time recorded on the master tape. One continuous luminance information obtained by compressing the luminance information to 1 / N on the time axis and one continuous color information obtained by compressing the color information in the original video information to 1 / N on the time axis, A composite synchronizing signal created from the vertical / horizontal position information and matching the continuous time axis compressed luminance information was created in the luminance information, similarly from the vertical / horizontal position and color subcarrier phase information. , The continuous time axis compressed color The burst signal matches the broadcast added to the color information, by processing the recording format of the slave VTR, has a rate converting means for outputting the slave VTR, a.

[0020]

With the above configuration, the high-speed dubbing apparatus of the present invention can transfer N master tapes on which the same information is recorded to N
High-quality reproduction without separation into luminance information and color information at different speeds at N times speed by one master VTR,
Information that associates the vertical / horizontal position of one playback unit of the playback video information with the phase of the color sub-carrier is received. Based on this information, the rate converter converts N discontinuous playback signals into 1 / N In addition to the compression of the time axis and splicing in a regular order, a composite synchronizing signal and a burst signal conforming to the time axis can be added and easily processed into a recording form of the slave VTR and output.

Further, the high-speed dubbing apparatus of the present invention provides a high-quality dubbing device that separates N master tapes on which the same information is recorded into luminance information and color information at N times different phases at N times speed by N master VTRs. And the rate converter separates the N pieces of discontinuous video information obtained from the N master VTRs into luminance information and color information. Then, the vertical / horizontal position of one reproduction unit of the reproduced video information and Receives information that correlates the phase of color sub-transport, and based on this information,
The N pieces of discontinuous reproduced luminance information and reproduced color information are each time-axis-compressed to 1 / N and spliced in a regular order. The luminance information in the original video information is time-axis-compressed to 1 / N. Of continuous luminance information and color information in the original video information by 1 /
N into one piece of continuous color information that has been time-axis-compressed, and a composite synchronization signal that matches the continuous time-axis-compressed brightness information is added to the brightness information, similarly to the vertical / horizontal position and color A burst signal that is generated from the subcarrier phase information and matches the continuous time axis compressed color information can be added to the color information and easily processed into a slave VTR recording format and output.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below.
An example of double-speed dubbing will be described with reference to the drawings.

In FIG. 1, 1 and 2 digitally record / reproduce a digital NTSC video signal which is sampled at a frequency (4 fsc) four times the color subcarrier and quantized by 8 bits in three tracks per field. Master VTRs 9 are reference video signals, 4 is a rate converter that splices the reproduced data of the two master VTRs 1 and 2 into one, and partially processes the signal into the input form of the slave VTR. A shaft compressor, 13 a synchronizing signal and burst signal generator, 15 a Y / C separator for separating a luminance signal (Y) and a chrominance signal (C), 16,
A D / A 18 converts a digital signal into an analog signal.
A converter, 17 is a low-frequency converter for converting the frequency of the chrominance signal to a low frequency, 19 is a frequency modulator for frequency-modulating the luminance signal,
6 is a distributor and 8 is a slave VTR.

The operation of the high-speed dubbing system of the present embodiment configured as described above will be described below.

First, master tapes having the same contents recorded on the master VTRs 1 and 2 are loaded one by one, and a variable mode (a method in which a reproducing head is mounted on a piezo element and a recorded track is controlled to follow. Different phases, for example, different fields are reproduced in parallel at twice the speed of the variable speed reproduction mode). In this embodiment, the master VTR 1 is used for reproducing odd fields,
The master VTR 2 is assigned to the reproduction of the even field. This means that a common reference video signal 9 is applied to the master VTRs 1 and 2 to synchronize with the time code recorded on the tape, and the VTR 1 stores the VT in the odd field.
R2 is achieved by controlling the piezo elements to track on even fields.

FIG. 2 shows the state of the reproduction track at this time. The upper part of FIG. 2 shows a reproduction track of the master VTR1, and the lower part shows a reproduction track of the master VTR2. Since the master VTRs 1 and 2 used in this embodiment use three tracks for recording one field, three consecutive tracks are units of reproduction. Therefore, at the time of 2 × speed reproduction in the variable mode, the track indicated by three continuous solid lines in FIG. 2 is a reproduction track to be reproduced, and three continuous broken lines positioned between these solid lines are not reproduced. It is a playback track. That is, the master VTR
1 reproduces 1, 3, 5 fields, and the master VTR 2
Indicates that 2, 4, and 6 fields are reproduced.

FIG. 3 shows the relationship between the applied reference video signal and the field timing of the signal reproduced from each of the master VTRs 1 and 2. The horizontal axis in FIG. 3 is time (seconds).
Where T is the field period of 1 / 59.94 seconds, FIG. 3A is the field number of the reference video signal, FIG. 3B is the data reproduced from the master VTR 1 and its field number, and FIG. The data reproduced from the master VTR 2 and its field number are shown. Taking 0 seconds to T seconds as an example, this indicates that field 1 is reproduced on the master VTR 1 and field 2 is reproduced on the master VTR 2 simultaneously with field 1 of the reference video signal. FIG. 4 shows this relationship in detail up to the line number. As in FIG. 3, FIG. 4A shows the field number and line number of the reference video signal, FIG. 4B shows the data reproduced from the master VTR 1 and its field number and line number, and FIG. 4C shows the master VT.
The data reproduced from R2 and its field number and line number are shown. In the NTSC signal, 4
Fig. 3 (a)
4 and the field numbers in FIG. 4 are repeatedly displayed from 1 to 4. At the time of double speed playback, FIG.
As shown in FIG. 4 and FIG. 4, there are places where the odd and even fields of the field of the reference video signal and the field of the reproduced data do not match. In this case, if an odd / even reverse field line corresponding to one line below the reference video signal line is read, an output having the relationship shown in FIG. 4 is obtained.

In the master VTR, a composite synchronizing signal generated from the reference video signal is controlled as it is without performing line complementation and demodulation and re-modulation processing of the color signal in spite of double speed reproduction. The burst signal is output with or without the addition of the burst signal (shown in FIG. 4A), with the timing relationship between the synchronizing signal and the video data being maintained properly.

The rate converter 4 receives the video information reproduced from each master VTR and the reference video signal. Here, the vertical / horizontal position information of the reproduced video data is defined by the reference video signal, and the phase of the color sub-carrier is determined from the color field of the reference video signal according to the relationship shown in FIG. The fields are determined and you can know from this.

The rate converter 4 operates as follows. The video information input from the master VTRs 1 and 2
It is guided to the time axis compressors 10 and 11 and the time axis is compressed by half, and is converted into a continuous signal as shown in FIG. At this time, as a compression start / end timing (writing / reading timing to / from the memory), a signal generated from the color frame information (field number) and the vertical information in the reference video signal is used, and a field from the master VTR 1 is used. The field 2 from the master VTR 2 is read after the field 1, the field 3 from the master VTR 1 and the field 4 from the master VTR 2 are read out so that the lines are continuous. Is controlled so as to be continuous information obtained by compressing the video information on the time axis to 1/2. The information obtained in this way maintains the vertical / horizontal and color phase relations as recorded, and is compressed in half on the time axis.

On the other hand, a synchronizing signal / burst signal creator 13 creates a composite synchronizing signal and a burst signal corresponding to the video information which has been made continuous by compressing the time axis from the reference video signal. This is because the relationship between the field number of the reference video signal and the field number of the compressed video information is as shown in (a) and (d) of FIG. 4 and the detailed timing of reading during compression is easy. Can be created.

The synchronization signal and the burst signal thus created are added to the compressed video information by the adder 14 and
The luminance signal (Y) and the chrominance signal (C) are led to the C separator 15.
The luminance signal is converted to an analog signal by the D / A converter 16, and the color signal is converted to VHS or S-VH
When the signal is supplied to a slave VTR such as S, the signal is frequency-converted to a low frequency, and then converted to an analog signal by the D / A converter 18 and output.

The output luminance signal of the rate converter 4 is modulated by the frequency modulator 19, guided to the distributor 6 together with the low-frequency converted chrominance signal, and supplied to the slave VTR 8.

Here, the case where the slave VTR receives as input the frequency-modulated luminance signal and the low-frequency converted color signal has been described. However, in the case of another form of input, a rate converter is May be changed or an interface may be provided. For example, when accepting a color signal that is not subjected to low-frequency conversion, the low-frequency converter 17 is unnecessary. When the luminance signal is received without frequency modulation, the frequency modulator 19 is unnecessary, and the Y / C
When receiving in the form of a composite video signal that is not separated, the output of the adder 14 may be D / A converted and output.

In FIG. 1, a composite synchronization signal and a burst signal are added to the information that has been compressed and made continuous on the time axis.
A composite synchronization signal may be added to luminance information after Y / C separation, and a burst signal may be added to color information.

In the embodiment shown in FIG. 1, a method is described in which a reference synchronization signal common to the master VTR is supplied to the rate converter 4, and a reference timing for time axis compression and a composite synchronization signal / burst signal are created from this signal. However, a method is also possible in which the reference video signal is not supplied to the rate converter, or even if the reference video signal is supplied, it is not necessary to generate all of the reference video signal. In this method, a composite synchronizing signal of a reference video signal and a burst signal are added to the video information output of the master VTR, and the synchronizing signal and the burst signal are separated by a rate converter. It is what you do. According to this method, at the time of output of the master VTR,
If the timing of the reproduced video information and the timing of the synchronizing signal are aligned, even if there is a time lag between the two master VTRs or in the transmission path, the correct timing can be restored by the rate converter 4.

At this time, at least horizontal position information is added to the video information output of the master VTR, and the vertical position and color frame (color subcarrier phase) of the reference video signal are
The reference video signal may be input to the rate converter 4 to be created.

In the above description, the relationship between the color frame of the reference video signal and the output fields of the two master VTRs is always constant, but the two VTRs are not strictly synchronized. The present invention can be applied even when this relationship is not necessarily specified. As an example of such a case, as shown in FIG. 5, it is assumed that the master VTR 2 reproduces the reference video signal such that the second field is the second field and the third field is the fourth field. At this time, the rate converter 4 extracts the time code (VITC) recorded in the vertical blanking from the output video information of the master VTR, and specifies the time information and the color frame of the reproduced video information from this information. . From this information and a reference signal applied to the rate converter 4 or a synchronization signal transmitted together with the reproduced image information,
A composite synchronizing signal and a burst signal to be added to the reference timing signal and the compressed signal for time axis compression are created. In this way, the time-axis-compressed and continuous video information at the timing shown in FIG. 5D and the corresponding composite synchronization signal and burst signal are obtained.

Here, the information indicating the color frame and time information of the reproduced signal is not limited to VITC, but may be any information superimposed on video information.

Next, another embodiment of the present invention is shown in FIG.
This will be described with reference to the drawings. 6, the same numbers as those in FIG. 1 represent the same components and perform the same operations. 20, 21
Is a Y / C separator, 22, 23, 24 and 25 are time axis compressors, and 28 is a synchronizing signal and burst signal generator.

The operation of the high-speed dubbing system according to the present embodiment configured as described above will be described below.

The reproduction by the master VTRs 1 and 2 is shown in FIG.
The reproduced signals having the relationships shown in FIGS. 3A to 3C are guided to the rate converter 4. Rate converter 4
First, the output signals of the respective master VTRs 1 and 2 are guided to Y / C separators 20 and 21, where they are separated into luminance information (Y) and color information (C). , 23 to the time axis compressors 24 and 25, respectively, to obtain luminance information and color information which have been time axis compressed by 1/2 and made continuous.

On the other hand, from the reference video signal applied to the rate converter 4, a composite synchronizing signal and a burst signal corresponding to luminance information and color information compressed on the time axis are created in the same manner as in the embodiment of FIG. The composite synchronizing signal is added to luminance information by an adder 29, the burst signal is added to color information by an adder 30, the luminance signal is converted to an analog signal by the D / A converter 16, and the chrominance signal is When the signal is supplied to a slave VTR such as a VHS or an S-VHS, the frequency is converted to a low frequency, then converted to an analog signal by the D / A converter 18 and output.

The output luminance signal of the rate converter 4 is modulated by the frequency modulator 19, guided to the distributor 6 together with the low-frequency converted chrominance signal, and supplied to the slave VTR 8.

According to this embodiment, the Y / C separator 20,
21 is performed without time-axis compression, so that a general-purpose Y / C separation circuit or IC can be used. In addition, since operation is performed at a lower frequency than in the previous example, it is inexpensive and power consumption can be suppressed. it can.

The modification depending on the input form of the slave VTR is the same as in the embodiment of FIG.

Further, the reference video signal is not supplied to the rate converter, or even if the reference video signal is supplied, the reference timing of the time axis compression and all of the composite synchronous signal burst signals to be added are not created from the reference video signal, and A method of using the composite synchronizing signal and the burst signal of the reference video signal transmitted in addition to the video information output is also possible as in the previous example.

Further, even when the two VTRs are not strictly synchronized, processing can be performed at the timing shown in FIG. 5 using VITC and information equivalent thereto, as in the previous example.

As described above, according to the present invention, the NTSC signal is
Although the case of double speed dubbing has been described as an example, the present invention is not limited to 2 × speed even if other signal systems are used.
Needless to say, even a double speed (N is an arbitrary positive integer) can be applied.

[0050]

As described above, according to the present invention, a plurality of master VTRs and a rate converter are provided, and the master VTR is provided.
The master VTR can be converted from a general-purpose device so that it is controlled so that signal processing for variable-speed playback is not performed while performing on-track playback on a recording track at a high tape feed speed. A simple process of compressing the reproduction signals from a plurality of master VTRs on the time axis and adding the corresponding composite synchronizing signal and burst signal, and processing only as required, achieves high image quality and a conventional double-speed dubbing system. Master VTR in
A video signal of the same format as that described above can be obtained, and there is no need to increase the number of cylinder rotations of a plurality of master VTRs, and stable N-times dubbing can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a high-speed dubbing apparatus according to an embodiment of the present invention.

FIG. 2 is a tape pattern diagram for explaining a reproduction track of a master VTR in the embodiment.

FIG. 3 is a time chart for explaining the operation of the high-speed dubbing device in the embodiment.

FIG. 4 is a detailed time chart for explaining the operation of the high-speed dubbing device in the embodiment.

FIG. 5 is a time chart for explaining the operation of a high-speed dubbing device according to another embodiment of the present invention.

FIG. 6 is a block diagram showing a high-speed dubbing apparatus according to another embodiment of the present invention.

FIG. 7 is a block diagram showing a conventional high-speed dubbing device.

FIG. 8 is a time chart for explaining the operation of the high-speed dubbing device in the conventional example.

[Explanation of symbols]

 1, 2 Master VTR 4 Rate converter 10, 11, 22, 23, 24, 25 Time axis compressor 13, 28 Synchronization signal / burst signal generator 20, 21 Y / C separator 6 Distributor 8 Slave VTR

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kunio Sueda 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. In-house (56) References JP-A-4-301283 (JP, A) JP-A-4-119079 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 27/024 H04N 5/7826 H04N 5/91-5/956 H04N 9/79-9/898

Claims (9)

(57) [Claims] 1. An N (N is an integer of 2 or more ) master tape in which the same information is recorded in the same form without separating a composite video signal into a luminance signal and a chrominance signal, and one each of the master tapes In summary, by synchronous operation, video information is reproduced at a rate of N reproduction units at a tape speed N times that of normal reproduction and at a ratio of one reproduction unit to N reproduction units without going through a separation process of luminance information and color information. Master VTR
And video information including luminance information and color information, which are reproduction outputs of the N master VTRs, and information for associating the vertical / horizontal position of one reproduction unit of the video information and the phase of color sub-transport. Then, the N pieces of discontinuous video information obtained from the N master VTRs are time-axis-compressed to 1 / N at the time of recording on the master tape, and connected, and the original video information is temporally reduced to 1 / N. Axial-compressed single continuous video information, and the composite synchronization signal and burst signal that match the continuous time-axis compressed video information created from the vertical / horizontal position and color sub-carrier phase information. A high-speed dubbing device comprising a rate converter for additionally processing the data in a slave VTR recording format and outputting the processed data to the slave VTR. 2. The time-base compressed video information reproduced and serialized from N master VTRs is separated into a luminance signal to which a composite synchronization signal is added and a color signal to which a burst signal is added, or 2. The high-speed dubbing apparatus according to claim 1, wherein the high-speed dubbing apparatus is processed and output to a slave VTR. 3. A common reference video signal is supplied to N master VTRs and a rate converter, and a specific reproduction unit is reproduced from each of the N master VTRs in accordance with a color frame of the reference video signal. And a composite synchronizing signal and a burst signal corresponding to video information reproduced from the N master VTRs are created from the reference video signal supplied to the rate converter and supplied to the rate converter. The high-speed dubbing device according to claim 1. 4. A common reference video signal is supplied to N master VTRs, and a specific reproduction unit is reproduced from each of the N master VTRs corresponding to the color frames of the reference video signal, and the reproduction is performed. At least the horizontal position information of the signal is added to the rate converter together with the information indicating the vertical position and the color frame of the reference video signal, and N master VTs are obtained from the horizontal position information and the information of the reference video signal.
2. The high-speed dubbing apparatus according to claim 1, wherein a composite synchronizing signal and a burst signal corresponding to the video information reproduced from R are created. 5. A common reference video signal is supplied to N master VTRs, and based on the reference video signal, the N master VTRs are operated synchronously to reproduce respective playback units from the N master VTRs. Then, the signal is supplied to the rate converter together with the vertical and horizontal position information of the reproduced signal, and based on the vertical and horizontal position information and the time information including the color frame superimposed and recorded on a part of the reproduced video information, N 2. The high-speed dubbing apparatus according to claim 1, wherein a composite synchronizing signal and a burst signal corresponding to video information reproduced from one master VTR are created. 6. N (N is an integer of 2 or more ) master tapes on which the same information is recorded in the same form without separating a composite video signal into a luminance signal and a chrominance signal, and one each of the master tapes By the synchronous operation, N
1 phase per N playback units with different phases at double tape speed
Includes N master VTRs that reproduce video signals in the proportion of the reproduction unit without going through the process of separating the luminance signal and the chrominance signal, and luminance information and color information that are reproduction outputs of the N master VTRs. After receiving the video information and information for associating the vertical / horizontal position of one reproduction unit of the video information and the phase of color sub-conveyance, and separating the output video information of each master VTR into luminance information and color information, The time axis is compressed to 1 / N of the master tape recording time and connected,
One continuous luminance information obtained by compressing the luminance information in the original video information by 1 / N on the time axis, and one continuous luminance information obtained by compressing the color information in the original video information by 1 / N on the time axis. Along with the color information, a composite sync signal created from the vertical / horizontal position information and matching the continuous time axis compressed luminance information is used as the luminance information, and similarly, the vertical / horizontal position and color A rate converter that adds a burst signal that matches the continuous time axis compressed color information created from the subcarrier phase information to the color information, processes the color information into a recording format of a slave VTR, and outputs it to the slave VTR; , Consisting of a high-speed dubbing device. 7. A common reference video signal is supplied to the N master VTRs and the rate converter, and a specific reproduction unit is reproduced from each of the N master VTRs in accordance with a color frame of the reference video signal. And a composite synchronizing signal and a burst signal corresponding to video information reproduced from the N master VTRs are created from the reference video signal supplied to the rate converter and supplied to the rate converter. The high-speed dubbing device according to claim 6. 8. A common reference video signal is supplied to N master VTRs, and a specific reproduction unit is reproduced from each of the N master VTRs in accordance with a color frame of the reference video signal, and the reproduction is performed. At least the horizontal position information of the signal is added and supplied to the rate converter together with the information indicating the vertical position and the color frame of the reference video signal. From the horizontal position information and the reference video signal supplied to the rate converter, N 7. The high-speed dubbing apparatus according to claim 6, wherein a composite synchronizing signal and a burst signal corresponding to video information reproduced from one master VTR are created. 9. A common reference video signal is supplied to the N master VTRs, and based on the reference video signal, the N master VTRs are synchronously operated to reproduce respective reproduction units from the N master VTRs. Then, the signal is supplied to the rate converter together with the vertical and horizontal position information of the reproduced signal, and based on the vertical and horizontal position information and the time information including the color frame superimposed and recorded on a part of the reproduced video information, N 7. The high-speed dubbing apparatus according to claim 6, wherein a composite synchronizing signal and a burst signal corresponding to video information reproduced from one master VTR are created.