JPS5935558B2 - Color video signal reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color video signal reproducing device, and when reproducing a magnetic recording medium on which a carrier color signal separated from a standard color video signal is converted to a low frequency and recorded, it is possible to perform By selectively inactivating the circuit means for removing crosstalk components from the PAL system, especially when the crosstalk components are small, standard color video signals can be reproduced well, and in particular PAL color video signals The purpose of the present invention is to provide a method that can reproduce data well.

FIG. 1 shows a block system diagram of an example of a PAL color video signal recording and reproducing apparatus previously proposed by the present applicant in Japanese Patent Publication No. 55-32273 (Japanese Patent Application No. 50-124312). In the figure, 1 is a PAL color video signal input terminal, and the PAL color video signal input from this is supplied to a low-pass filter 2 and a bandpass filter 3, respectively.
Here, the luminance signal and the carrier color signal are separated and filtered.
The luminance signal extracted from the low-pass filter 2 is supplied to a frequency modulator 4 for frequency modulation (FM), and then supplied to a high-pass filter 5 that removes unnecessary frequency components. On the other hand, the color subcarrier frequency f extracted from the charged filter 3
The carrier color signal c is supplied to a frequency converter 6, where it is frequency-converted to a frequency lower than the frequency modulated luminance signal band by a signal from a frequency converter T, which will be described later.

A horizontal synchronizing signal is separated from the input PAL video signal by a horizontal synchronizing signal separation circuit 8, and this horizontal synchronizing signal is frequency multiplied by 1 (2m+1) (m is an integer) by a frequency multiplier 9. This frequency-multiplied signal is frequency-converted by the frequency converter 7 into a signal whose frequency from the local oscillator 10 is equal to the color subcarrier frequency Fc, and the sum of these signals is converted into a frequency and supplied to the frequency converter 6. As a result, the frequency converter 7 is lower than the frequency converter 6.
A carrier color signal converted to a low frequency that is the difference between the signal frequency from the filter 3 and the signal frequency from the bandpass filter 3 is extracted. The color subcarrier frequency of this low-pass converted carrier color signal is Fs
Then, fs=? The relationship is selected as (2m+1)FH.

However, in the above formula, FH is the horizontal scanning frequency. Here, the frequency Fc is 4.43361875MHz. ．． f
For example, s is 689,453kHz, . Let m be 176. The low-pass converted carrier color signal is supplied to a phase shifter 12 of a phase shift circuit 11 . In FIG. 1, the phase shift circuit 11 is shown as a configuration consisting of a phase shifter 12 and a switch 13 for convenience in order to make the principle of operation easier to understand. The phase shifter 12 zeroes each input signal, 90. ，
The signals are simultaneously applied to the contacts Al, a2, a3, and a4 of the switch 13 with a phase shift of 180 degrees and 270 degrees, respectively. switchchai 1
3, the rotary contact piece sequentially rotates one step at a time every horizontal scanning period (1H) and switches to each contact point A1 to A4, and furthermore, for a period corresponding to one video track recording (hereinafter, 1H).
The direction is always switched to a predetermined constant direction X at every interval (explained as a field period). In addition, the horizontal synchronization signal separation circuit 8
The horizontal synchronization signal from
6 is supplied to the switch control circuit 14 for each vertical scanning period (one field period).

The output signal of the switch control circuit 14 controls the switching of the contact piece of the switch 13 of the phase shift circuit 11 as described above. In this way, the phase shift circuit 11 sequentially shifts the phase by 900 in a certain direction during one field period, and in the next one field period, no phase shift is performed at all, and then in the next one field period. The period is 9 every 1H.
A low-pass converted carrier color signal whose phase is sequentially shifted by 00 in the same direction as above is taken out, unnecessary components generated in the frequency converter 6 etc. are removed by a low-pass filter 17, and then the mixer 18 The signal is mixed and multiplexed with the frequency-modulated luminance signal from the high-pass filter 5 and supplied to the recording amplifier 19.

The mixed signals amplified by the recording amplifier 19 are supplied to rotating video heads 20a and 20b having different azimuth angles, so that, for example, the rotating video heads 20
A mixed signal of one field is recorded on the magnetic tape 21 by alternately forming one recording track for each one scanning of the magnetic tape 20a and 20b. The rotating heads 20a, 20b are motor 2
2, and are provided at positions facing each other in the diametrical direction of the rotating body 15 driven by the arrow 24, as shown in FIG.
The azimuth gears have azimuth gears inclined in directions opposite to each other with respect to a direction perpendicular to the scanning direction of the head. As shown in FIG. 2, a track 23a is formed by the head 20a over one field period, and a track 23b is formed closely to the track 23a by the head 20b over the next one field period. 20a, 20
tracks 23c, 23d, . . . are sequentially formed alternately by Here, for example, suppose that one field period in which the contact piece of the switcher 13 is connected and fixed to one contact point is recorded by the rotating video head 20a, and a signal when rotating in the direction of arrow X is recorded by the head 20b. , A for track 23a.

, Al, A2, . . . , An, . . . during one horizontal scanning period are recorded without any phase shift. , Bl, B2
, . . , Bn-2, . . . for one horizontal scanning period are sequentially phase-shifted by 90 in a fixed direction every 1H and are recorded. When reproducing a PAL color video signal from the magnetic tape 21 recorded as described above, only the period during which the low frequency conversion carrier color signal recorded with a phase shift is reproduced is substantially different from the time of recording. The reproduced carrier color signal obtained by shifting the phase by about 900 points every 1H in the opposite direction and converting the frequency to return the band to the original value is demodulated through a circuit consisting of a 2H delay device and a mixer to generate a reproduced luminance signal. Band sharing multiplexing is performed to obtain a reproduced PAL color video signal.

Here, the crosstalk component can be canceled out and removed by using a device that delays the reproduced low-pass conversion carrier color signal or the reproduced carrier color signal by 2H, and by mixing the input and output of this delay device. That is, when reproducing the track shown at 23b in FIG. 2, for example, the low frequency conversion carrier color signal or the frequency conversion signal for returning it to the original band is transmitted every 1H in the opposite direction to that during recording. Since the phase is shifted by 90 degrees, the crosstalk component of the low-frequency conversion carrier color signal recorded without any phase shift from the adjacent tracker 23a or 23c is also phase shifted by 90 steps every 1H. In 2H, the crosstalk components have opposite polarities. On the other hand, when reproducing tracks such as tracks 23a and 23c, in which the low-frequency conversion carrier color signal is recorded without phase shifting, since no phase shifting is performed, the signals from adjacent tracks 23b or 23d, etc. Since the crosstalk component in 2H is the low-frequency conversion carrier color signal component recorded in advance with a phase shift of 900, the crosstalk component also has opposite polarities in 2H. Become a stomach. On the other hand, PAL
The system color video signal consists of two color difference signals that are quadrature modulated and band-sharing multiplexed into a luminance signal, one of which is one color difference signal.
Since the phase is inverted and modulated every H, almost the same information can be repeatedly obtained every 2H for a single color signal. Therefore, by taking this two-line correlation into consideration and mixing the input and output of the 2H delay device as described above, the above-mentioned crosstalk component can be removed, and the carrier color signal recorded on the scanning track can be removed. can only be played. In this way, the above-mentioned method proposed by the present applicant takes advantage of the two-line correlation characteristic of PAL color video signals, thereby reducing the azimuth loss in conventional azimuth recording and playback. The crosstalk of the low frequency conversion carrier color signal between adjacent tracks, which could not be sufficiently reduced, can be made extremely small. Therefore, the guard band can be made extremely small or eliminated, and PAL color video signals can be recorded and reproduced. Therefore, it has the advantage of increasing tape usage efficiency.

However, in an apparatus for reproducing the magnetic tape 21 recorded as described above, even when there is almost no crosstalk component from adjacent tracks or it can be ignored, the non-delayed reproduction carrier color signal and the delayed reproduction carrier color signal are separated. Because the images are added and mixed, a color shift occurs on the playback screen with respect to the playback brightness signal (color shift occurs on the playback image, usually at the bottom because the playback color signal lags behind the playback brightness signal). However, as a result of experiments conducted by the present applicant, it has been found that depending on the picture, the reproduced image quality deteriorates.

The above-mentioned color shift is particularly large in the reproduction of PAL color video signals among standard color video signals. this is,
Since the color subcarrier of the above PAL color video signal is inverted every 1H, the above 2H delay device is required in the reproduction system, and a 1H delay device is required in the television receiver that receives the reproduced color video signal. This is because the delay time caused by these delay devices can reach up to 2H or 3H, especially when playing PAL color video signals, and the color shift caused by this can be relatively noticeable depending on the image. However, even when there is almost no crosstalk component or it can be ignored, there is a problem in that the reproduced image quality may deteriorate. The present invention solves the above problems, and each embodiment thereof will be explained with reference to FIGS. 3 and 4.

FIG. 3 shows a block system diagram of a first embodiment of the apparatus of the present invention.

A magnetic tape 21 having a track pattern as shown in FIG. 2 is sequentially reproduced by rotating video heads 25a and 25b. At this time, by reproducing the control pulse recorded on the edge of the tape 21 for each rotation of the rotating body 26, the rotating video heads 25a and 25b can play tracks recorded at the same azimuth angle. Controlled to scan. The reproduction signals from the rotating video heads 25a and 25b are mixed after passing through reproduction amplifiers 27a and 27b, respectively, and are further supplied to a high-pass filter 28 and a low-pass filter 29, respectively. High frequency pool: After the luminance signal which is a frequency modulated wave is extracted from evening 28, it passes through a limiter 30, an FM demodulator 31, and a low pass filter 32 in order, and then is sent to a mixer 33.
On the other hand, the reproduced low-pass converted carrier color signal separated and taken out by the low-pass filter 29 is supplied to a frequency converter 34, where it is output from a voltage controlled oscillator (hereinafter referred to as CO) 35, which will be described later. The color subcarrier frequency Fc (= 4.4336
1875M1z).

The phase of the reproduced carrier color signal taken out from the frequency converter 34 is sequentially recorded every 1H by 900 by one field period in which no phase shift occurs and by a frequency conversion operation to obtain the frequency component of the difference. One field period that is made to progress in substantially the opposite direction to time is repeated alternately.

This reproduced carrier color signal is supplied to a phase shifter 36, where four types of waveforms having phases different by 900 are created. 0
0,900,1800,270? The four types of reproduced conveyance color signals, each having a phase shift, are sent to contact B of the switcher 37.
, , b2, b3, and b4 at the same time.

This switcher 37 receives a signal synchronized with the rotation of the rotating video heads 25a, 25b from a rotation detector 38 and a reproduced PAL system color video signal to a horizontal synchronization signal separation circuit 3.
Tracks (23b, 23d, . . . in this case) whose phase has been shifted during recording are controlled by the output of the switcher control circuit 40 to which the horizontal synchronizing signal separated by 9 is input.
Only during reproduction, the contacts B, . Therefore, the reproduced carrier color signal taken out from the switch 37 is transferred to the rotating video head 25a from the track 2.
3a, 23c, . . . , the rotary contact piece of the switcher 37 remains connected to the contact point b1, and the normal reproduction conveyance color signal whose phase is not changed is used.
The rotating video head 25b has tracks 23b, 23d, .
When scanning ..., the rotating contact piece of the switcher 37 is switched in the X direction due to the phase reversal effect of the frequency converter 34, and as a result, the rotating contact piece of the switcher 37 is switched in the X direction by 90 contacts every 1H in a direction substantially opposite to that during recording. This results in a reproduced carrier color signal whose phase is shifted to .

The reproduced carrier color signal whose phase has been returned to its original state over all field periods in this way is supplied to a gain switching circuit 41, which forms a part of the main part of the present invention, and is also supplied to a 2H delay device 42. be done. The gain switching circuit 41 described above is configured to have its gain controlled by a pulse signal from an input terminal 48, which will be described later, and if crosstalk components or color shift are not a problem, it can amplify the human input signal level by approximately twice. If crosstalk components become a problem, the input signal is output as is to the subsequent circuit without being amplified. Further, the reproduced carrier color signal delayed by 2H by the 2H delay device 42 is supplied to the gate circuit 43. Gate circuit 43
is a configuration in which the pulse signal from the input terminal 48 allows the input signal to pass if the crosstalk component is a problem, and blocks the input signal and does not output it to the subsequent circuit if the crosstalk component or color shift is not a problem. It is said that Therefore, if you are currently viewing a reproduced image and cannot tolerate the deterioration in image quality due to crosstalk components on the reproduced screen, operate the operation button (not shown) to switch the pulse signal from the input terminal 48 to the gain switching circuit 41 and applied to the gate circuit 43,
The output signal of the 2H delay device 42 is passed through the gate circuit 43, and at the same time, the output signal of the 2H delay device 42 is passed through the gate circuit 43, and the gain switching circuit 41 passes the output signal of the switch 37.
By passing the reproduced carrier color signal as it is without amplifying it and mixing these signals in the mixer 44, crosstalk from adjacent tracks can be eliminated, similar to the operation of the reproduction system in the method proposed by the present applicant. components are removed,
In addition, a reproduced carrier color signal whose phase has been returned to its original state is extracted over all field periods.

The reproduced carrier color signal level is approximately twice the output signal level of the switch 37, and the rotary head 25a
, 25b are accurately scanning the recording track on the magnetic tape 21 and there is no crosstalk component, or even if there is, it is extremely small and tolerable, the 2H delay device is normally used as described above. 42 is used to remove crosstalk components.

However, even in this case, the color shift on the playback screen may not be acceptable depending on the picture, and only in this case, operate the above operation button to send a pulse signal of a different level from the above to the gain switching circuit 41 and the gate. applied to the circuit 43,
At the same time as the gate circuit 43 is turned on and cut off, the reproduced carrier output signal is amplified to approximately twice the level of the gain switching circuit 41 (at this time, this reproduced carrier color signal has almost no crosstalk components from adjacent tracks). (or present to a negligible extent) is removed and placed in the mixer 44.
The signal is then supplied to the mixer 33 and the burst sampling circuit 45 as is without being mixed with other signals. As a result, the 2H delay device outputs the reproduced PAL color video signal from the mixer 33 from which crosstalk components from adjacent tracks have been removed, or only when the crosstalk component is not a problem and color shift is unacceptable. The non-delayed reproduced carrier color signal obtained without using 42 is band-sharing multiplexed with the reproduced luminance signal, and a raw PAL color video signal is outputted to the output terminal 49.
guided by.

The color burst signal (color subcarrier) extracted by the burst extraction circuit 45 is supplied to a phase comparator 46. The phase comparator 46 compares the phase of the reproduced color burst signal with a stable fixed frequency equal to the color subcarrier frequency Fc of the PAL color video signal from the reference oscillator 47, and outputs an error voltage corresponding to the phase difference to the VCO 35. to control its output oscillation frequency. As a result, CO3
5 is a frequency Fc+ synchronized with the reproduced color burst signal.
A continuous wave of Fs is supplied to the frequency converter 34. In this way, if the crosstalk component from the adjacent track becomes a problem, it is removed from the output terminal 49, and if the crosstalk component is almost absent or can be ignored, the reproduced PAL system color from which color shift is removed is removed. A video signal is extracted.

In the above embodiment, the input terminal 48 is
:． Number τ = = τ2 [ka L: Ri [■■Explain.

Two tracking state detection heads are installed in front of the rotating head in the scanning direction, and each scans both side edges of the same track as the one being scanned by the rotating head, and the outputs of these heads are compared and the comparison output is calculated. Techniques are known in which a rotating head on a piezoelectric element is moved in a precise scanning direction over a track. By inputting a detection output indicating whether or not the tracking matches to the input terminal 48, when the tracking matches, the 2H delay device 42 is substantially inactivated as in the above embodiment, and reproduction without color shift is achieved. When an image is obtained and the tracking does not match, the 2H delay device 42 can be activated to remove crosstalk components. FIG. 4 shows a block system diagram of the main parts of the second embodiment of the device of the present invention.

This embodiment is applied to an apparatus in which the phase switching is performed on the local oscillation circuit side and the frequency conversion section is shared by the recording and reproducing system. To explain the operation during reproduction, a reproduced low frequency conversion carrier color signal reproduced from the magnetic tape 21 and separated is input from the input terminal 50, and is input to the frequency converter 5.
1. At the same time, a horizontal synchronizing signal separated from the reproduced luminance signal is input to the input terminal 52, and a synchronizing signal synchronized with the rotating video head is input to the input terminal 53, and is applied to the gate circuit 54 as a gate pulse. be done. The reproduced horizontal synchronizing signal from the input terminal 52 is supplied to the phase comparator 55, where the phase is compared with the signal from the countdown circuit 56, and an error voltage is generated according to the phase difference between them, and the center frequency 4fs0) is applied to the VCO 57. and controls its output oscillation frequency. The output oscillation frequency of the VCO 57 is determined by the countdown circuit 56, for example, ? The horizontal scanning frequency FH is applied to the phase comparator 55, and is also supplied to the phase shifter 58, where it is counted down and phase-shifted to produce four types of frequencies Fs with mutually different phases by 900. It is considered to be a signal.

These four types of signals are supplied to the gate circuit 59 simultaneously. On the other hand, the gate circuit 54 uses a head rotation synchronizing signal from the input terminal 53 to control when the rotating video head is scanning a track in which the phase of the low frequency conversion carrier color signal recorded on the magnetic tape is shifted. The reproduction horizontal synchronization signal from the input terminal 52 is passed through and applied to the counter 60, and when a track whose phase is not shifted is being scanned, the reproduction horizontal synchronization signal is cut off.

The counter 60 counts the range from O to 3 using 2 bits, and sends the count output to the gate circuit 59 via the decoder 61.
, and only the output of one designated line out of the four outputs of the phase shifter 58 is passed. ::Dead;゜K. K
21.7.$:. ÷2=Only during the period when the rotating video head is scanning the phase-shifted low frequency conversion carrier color signal recording track, the signals are sequentially selected and output from the gate circuit 59 every 1H and applied to the frequency converter 62. The output of this gate circuit 59 has a frequency of Fs, and a signal whose phase sequentially changes by 900 in the same direction as during recording every 1H for every right track scan is taken out, and for other periods, the frequency is Fs.
A signal with a constant phase is extracted. The frequency converter 62 performs frequency conversion on a signal from the gate circuit 59 and a continuous wave of frequency Fc from a VCO 63 (to be described later), and supplies a signal having the sum of these frequencies to the frequency converter 51 .
Therefore, a signal in which the phase shifts in a predetermined direction by 90 degrees every 1H from the frequency converter 62, and this phase shift occurs every one recording track (for example, every one vertical scanning period) is the reference signal. The signal is supplied to the frequency converter 51, and a difference frequency component from the reproduced signal from the manual terminal 50 is created. As a result, similar to the output of the switcher 37 shown in FIG. 3, the frequency converter 51 extracts a reproduced carrier color signal from which the time axis fluctuation component has been removed and which has been returned to the original band. This reproduced carrier color signal is supplied to a 2H delay device 64, a subtraction circuit 65, and a mixer 68, respectively. The subtraction circuit 65 subtracts the above-mentioned second destination color signal and the output signal of the 2H delay device 64, outputs the crosstalk component, and outputs the crosstalk component to the waveform shaping circuit 66.
supply to. This waveform shaping circuit 66 detects whether or not the input crosstalk component is above a certain level, and when it is above a certain level, it connects a gate circuit 67 to pass the reproduced carrier color signal delayed by the 2H delay device 64. mixer 6
8, and when the level is lower than a certain level, the gate circuit 67 outputs a control signal to cut off the delayed reproduction carrier color signal from the 2H delay device 64. In this way, it is automatically detected whether the crosstalk component from the adjacent track is above a certain level, and the mixer 68
Therefore, when the phase is restored and the crosstalk component is above a certain level, the crosstalk component is removed by using the 2H delay device 64, and on the other hand, when it is below the certain level, the 2H delay is applied. A reproduced carrier color signal of color subcarrier frequency Fc obtained with device 64 substantially inactive is extracted and outputted from output terminal 69 to be band-sharing multiplexed with the reproduced luminance signal.

In this way, the present embodiment can automatically prevent the tomoe shift of the reproduced image. Note that from the reproduced carrier color signal from the mixer 68, only the color burst signal is extracted by a burst extraction circuit 70 and supplied to a phase comparator 71, where the frequency F from the reference oscillator 72 is extracted.

After the time axis fluctuation of the reproduced color burst signal is detected by phase comparison with output. With such an APC circuit, the reproduced color burst signal is controlled to match the phase of the output signal of the reference oscillator 72, and the reproduced carrier color signal is extracted from the output terminal 69 with time axis fluctuation components removed. In the embodiment shown in FIG. 4, during recording, the changeover switch SW is connected to the contact R side to set the output of the VCO 63 at a constant frequency Fc, and the output signal of the frequency converter 62 obtained in the same manner as during playback allows The carrier color signal from the input terminal 50 is frequency-converted to a low frequency by the frequency converter 51 so that the color subcarrier frequency becomes Fs, and is taken out from the output terminal 73.

Also, instead of using the gate circuit 43, the 2H delay device 42
There is no practical problem in a configuration in which the 2H delay device 4 is directly inactivated or controlled. Furthermore, the mixing ratio of the delayed conveyance color signal and the non-delayed conveyance color signal may be changed. In short, the 2H delay device 4
Any means may be used as long as it is possible to substantially bring the parts 2 and 64 into an activated state or a non-actuated state.

Further, in each of the above embodiments, the case of a PAL color video signal has been described, but it goes without saying that the present invention can also be applied to the case of reproducing an NTSC color video signal.

In this case, the carrier color signal that is separated from the NTSC system color video signal, frequency-converted to a low frequency band, and recorded is as follows. As proposed above, the transition directions are opposite to each other in adjacent tracks, and approximately 9
The signal is recorded with a phase shift of 0.00, and a 1H delay device is used in place of the 2H delay devices 42 and 64 in the reproduction system. Furthermore, the color video signal reproduced by the apparatus of the present invention is not limited to being recorded on a magnetic tape, but may be recorded on other recording media such as a magnetic disc sheet.

As mentioned above, the color video signal reproducing device according to the present invention has the following features:
A crosstalk component that removes crosstalk components from adjacent tracks by adding input and output signals of a delay device that delays the low-band converted carrier color signal reproduced from the recording medium or the carrier color signal returned to the original band. By providing a removal circuit and a control circuit that selectively makes the circuit substantially inactive when there is no crosstalk component or the amount of crosstalk is negligible, the reproduced luminance signal and the reproduced carrier color signal are provided. The above control circuit is controlled by the detection output of a circuit that detects whether or not the crosstalk component from adjacent tracks in the reproduced signal is at a certain level. As a result, the color shift described above can be automatically prevented, and the detection output of the means for detecting the tracking state of the rotary head indicates that when the tracking of the rotary head approximately matches, the above control circuit performs a cross-over. substantially inactivate the talk component removal circuit, and
When the tracking of the rotary heads does not match, the control circuit operates the crosstalk component removal circuit described above, so that the color shift can be automatically corrected depending on whether the tracking of the rotary heads matches or does not match. In addition to standard color video signals, especially PAL color video signals, carrier color signals and luminance signals can be separated,
It is particularly effective when applied to a device that frequency-modulates the luminance signal and converts the frequency of the carrier color signal to a frequency lower than the band of the frequency-modulated luminance signal, and reproduces a recording medium in which these signals are multiplexed and recorded. It has the following characteristics.

[Brief explanation of the drawing]

Fig. 1 is a block system diagram showing an example of a recording system of a color video signal recording and reproducing device proposed earlier by the present applicant;
1 is a diagram showing an example of a track pattern on a magnetic tape recorded by the recording system of FIG. 1, FIG. 3 is a block system diagram showing a first embodiment of the apparatus of the present invention, and FIG. FIG. 7 is a block system diagram showing the main parts of the second embodiment. 12, 36, 58... phase shifter, 13, 37...
...Switzer, 20a, 20b, 25a, 25b
...Rotating video head, 42, 64...
・2H delay device, 43, 67...gate circuit,
49...Reproduction PAL color video signal output terminal, 65...Subtraction circuit, 69...Reproduction carrier color signal output terminal.

Claims (1)

[Claims] 1 Separate the luminance signal and carrier chrominance signal from the standard color video signal, frequency-modulate the luminance signal, convert the carrier chrominance signal to a lower band than the frequency-modulated luminance signal band, and convert the frequency of the carrier chrominance signal to adjacent recording tracks. A color video signal is reproduced using a rotary head from a recording medium in which these signals are multiplexed and recorded with a phase shift of about 90° in a predetermined direction every horizontal scanning period, and the color video signal is reproduced using a rotary head. By using a frequency conversion signal whose phase has been shifted in a direction substantially opposite to the phase shift, the reproduced low-pass conversion carrier color signal is frequency-converted in a frequency conversion circuit, so that it is returned to its original band. , and in the re-output device for obtaining the reproduced carrier color signal with the phase shift canceled, the input and output signals of the delay device for delaying the reproduced carrier color signal from the frequency conversion circuit are added to eliminate crosstalk from adjacent tracks. a crosstalk component removal circuit including the delay device that removes the crosstalk component;
A control circuit that substantially disables the crosstalk component removal circuit when the crosstalk component is absent or has a negligible amount, and a control circuit that detects the tracking state of the rotary head and detects the tracking state of the rotary head. When they substantially match, the control circuit causes the crosstalk component removal circuit to become substantially inactive, and when the tracking of the rotating heads does not match, the control circuit causes the crosstalk component removal circuit to substantially disable the crosstalk component removal circuit. A color video signal reproducing device comprising: a detection circuit for activating a talk component removal circuit.