JPS63153755A - Video tape recorder with dubbing function - Google Patents

Abstract

PURPOSE:To attain dubbing without signal deterioration by providing a connecting means outputting a reproducing signal of the 1st VTR to the 2nd VTR. CONSTITUTION:A 1st recording/reproducing deck 300a and a 2nd recording/ reproducing deck 300b are connected by a signal processing section 200 with a tuner. Then a reproduced FM modulation signal by the deck 300a via a reproducing amplifier 323 and a recording/reproduction changeover switch 315 or the like is supplied to a reproducing luminance signal processing unit 234 and a reproduced color signal processing unit 235 via recording/reproduction changeover switch 223 of the processing section 200, an HPF 232 and an LPF 233. The eproduced FM modulation signal is fed to the deck 300b via an adder 241 without being subject to demodulation and high frequency conversion by the units 234, 235 and subject to dubbing recording. Accordinglyk such procedure is not required as demodulating the reproduced FM signal, supplying the result to the other VTR, and applying FM modulation processing again to record the result, and the video signal with less signal deterioration is dubbed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video tape recorder with a dubbing function (hereinafter referred to as a VTR).

[Prior Art] Conventionally, in order to duplicate a videotape on which video and audio signals have been recorded, that is, to dub, two VTRs each capable of playback and recording are used, and a playback VT is used.
After connecting the output of R to the input of the recording VTR via a connection cord, the recorded videotape is played back on the playback VTR, and the played video and audio signals are transferred to the recording VTR.
It is recorded on videotape attached to the

[Problems to be Solved by the Invention] However, when dubbing a videotape using the method described above, the FM luminance signal is
After performing M demodulation and high-frequency conversion of the low-frequency conversion signal, the luminance signal and the color signal are added, and the luminance signal and the color signal are separated in a recording VTR.
After the luminance signal is FM modulated and the chrominance signal is low frequency converted, the FM luminance signal and the low frequency converted signal are added and recorded on a video tape via a magnetic head.

Therefore, in the dubbing method described above, since each nonlinear signal processing of both FM demodulation and FM modulation of the luminance signal and both high-frequency conversion and low-frequency conversion of the color signal is performed,
There was a problem in that the video signal deteriorated.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to convert a recorded video signal recorded on a videotape into another video signal without causing deterioration of the recorded video signal composed of an FM luminance signal and a low frequency conversion color signal. An object of the present invention is to provide a VTR with a dubbing function capable of recording on tape.

[Means for Solving the Problems] The present invention provides a reproduction means for reproducing a recorded video signal recorded on a first videotape, a recording means for recording the recorded video signal on a second videotape, and the above-mentioned video tape. The present invention is characterized by comprising a connecting means for outputting the recorded video signal reproduced by the reproducing means to the recording means.

[Operation] By configuring as described above, the above-mentioned regeneration means is the first
After reproducing the recorded video signal recorded on the videotape, the recorded video signal is outputted to the recording means via the connecting means. Next, the recording means records the recorded video signal on a second video tape, and a dubbing operation is performed.

[Embodiment] FIGS. 1 and 3 are block diagrams of a camera-integrated VTR system with a dubbing function, which is an embodiment of the present invention, when three and two devices are combined, respectively. The VTR system includes an imaging camera section 100
, a signal processing section 200 with a tuner, and two recording/reproducing deck sections A and B 500a, 300b, which are housed in four independent housings. Depending on the processing status during output playback and dubbing, necessary devices among the above four devices can be connected in combination, and the device main body can be miniaturized when the above devices are combined during each of the above processes. be able to. Further, this VTR system is characterized in that the tuner-equipped signal processing unit 200 has a dubbing function for dubbing a videotape without performing FM modulation/demodulation processing of the luminance signal and high-frequency conversion and low-frequency conversion processing of the color signal. It is said that

In addition, two recording/reproducing deck sections A and B 500a and 300
b have the same configuration, and hereinafter, only the symbols of the input/output terminals will be used with different suffixes.

During shooting recording and playback, the imaging camera section lO is
By combining O and the recording/playback deck part A300a, these two
The two devices 100 and 300a are fixed to each other by detachable connection fixing members 410 and 411,
Detachable connection terminals 120 to 123 of the imaging camera section 100 are electrically connected to detachable connection terminals 310a to 313a of the recording/reproducing deck section A300a, respectively.

Also, the video signal and audio signal from the tuner or external device are recorded on the video tape attached to the recording/reproducing deck section A300a, and the video signal and audio signal recorded on the video tape are played back and output to the external device. When doing so, as shown in FIG.
2 and 413, and a detachable connection terminal 227 of the tuner-equipped signal processing section 200.
231 are electrically connected to removable connection terminals 310a to 314a of the recording/reproducing deck A300a, respectively.

Furthermore, the videotape loaded in the recording/reproducing deck section A300a is played back, and the reproduced signal is transferred to the recording/reproducing deck section B500a.
When recording on the videotape loaded in
In addition to the connection with 0a, the signal processing unit 200 with tuner
and a connection fixing member 4 to which the recording/reproducing deck part B500b can be attached and detached.
14 and 415, and the connection terminal 24 of the tuner-equipped signal processing section 200 is detachable.
2 to 245 are electrically connected to detachable connection terminals 310b to 313b of the recording/reproducing deck section B500b, respectively.

In addition, as mentioned above, two recording/reproducing deck sections A and B30
0a and 300b have the same configuration, and the same detachable terminals 310a to 314a and 31Ob to 314
b), they are compatible and can be mutually converted and used. First, the configuration of the imaging camera section 100 shown in FIG. 3 will be explained. The image information photographed by the camera unit 11 is a color difference signal (
The color difference signals (RY) and (B-Y) are output to the modulation circuit 12, and the luminance signal Y is output to the recording/reproduction switch. 111
It is output to the electronic viewfinder 65 via the REC side of the REC side, and is also output to the recording luminance signal processing circuit 14. Further, the vertical synchronization signal output from the camera section 11 is output to the connection terminal 123. The color difference signals (R-Y) and (B-Y) input to the modulation circuit 12 are transmitted to the 743 KHz oscillator 1.
The signal is orthogonally two-phase modulated by the 743 KHz subcarrier output from the subcarrier 3 and outputted to the adder 19 as a low-pass conversion color signal. On the other hand, the luminance signal Y input to the recording luminance signal processing circuit 14 is subjected to predetermined processing such as FM modulation, and then
The signal is outputted to the adder 19, added to the low frequency converted color signal, and outputted to the connection terminal 120 via the REC side of the recording/reproduction switch 110.

The low frequency conversion color signal and FM luminance signal input to the connection terminal 120 are transferred to the HP via the PB side of the recording/playback switch 110.
After being input to the FI 7 and extracting only the FM luminance signal, it is output to the reproduced luminance signal processing circuit 18 . After the FM luminance signal is subjected to predetermined processing such as FM demodulation in the reproduction luminance signal processing circuit 18, the recording/reproduction changeover switch 111
is output to the electronic finder 65 via the PB side of the PB side.

Furthermore, the audio signal input to the microphone +14 is output to the connection terminal 122 via the audio amplification circuit 115 and the REC side of the recording/reproduction switch 112.

On the other hand, the audio signal input to the connection terminal 122 is output to the speaker 117 via the PB side of the recording/reproduction switch 112 and the audio amplification circuit 116. Recording/playback switch 11
0.111 and 112 are controlled by the switching control circuit 113,
In conjunction with this, it is switched to the RFC (recording) side or the PR (reproduction) side. This switching control circuit +13 outputs an RFC switching signal or a PB switching signal to the connection terminal +21 when the recording/reproducing switching switches 110, 111, and 112 are switched to the REC side or the PB side, respectively. The signal is transferred from the connection terminal 121 to the switching control circuit 113
When input to
Switch to C side or PB side.

Next, the configuration of the tuner-equipped signal processing section 200 shown in FIG. 1 will be explained. In FIG. 1, a television broadcast wave signal received by an antenna 210 is transmitted to a tuner circuit 211.
The video signal is demodulated and converted into a video signal and an audio signal, and the video signal is passed through the tuner side of the tuner/external changeover switch 212 to an automatic gain adjustment circuit (hereinafter referred to as an AGC circuit).

) 214, while the audio signal is output to the tuner side of the tuner/external changeover switch 213 and the audio amplification circuit 215.
, and is output to the connection terminal 229 via the REC side of the recording/reproduction switch 225. Also, external video input terminal 2
The video signal input to the external audio input terminal 217 is output to the AGC circuit 214 via the external side of the tuner/external changeover switch 212, and the audio signal input to the external audio input terminal 217 is output to the external side of the tuner/external changeover switch 213. The signal is output to the audio amplification circuit 215 via the audio signal. The video signal input to the AGC circuit 214 is outputted to the LPF 218, BPF 219, and the REC side of the recording/reproducing switch 224 after its amplitude is adjusted to a constant amplitude. The video signals input to the LPF 218 and BPF 219 are each extracted with a luminance signal and a color signal, and then the luminance signal is recorded.The luminance signal processing circuit 220 performs predetermined processing such as FM modulation, and the FM luminance signal is added. output to the device 222. On the other hand, the color signal is subjected to predetermined processing such as low-frequency conversion in the recording color signal processing circuit 221, and then added to the above-mentioned FM luminance signal in the adder 222. 227.

The FM luminance signal and low frequency conversion color signal inputted to the connection terminal 227 are sent to the HP via the PB side of the recording/playback switch 223.
After being manually operated by F232 and LPF233, each F
The M luminance signal and the low-frequency converted color signal are extracted, and the FM luminance signal is input to the dropout compensation circuit (hereinafter referred to as 000 circuit) 251 of the reproduced luminance signal processing circuit 234, while the low-frequency converted color signal is the reproduced color signal processing circuit 23
No. 5 automatic color saturation adjustment circuit (hereinafter referred to as ACC circuit).

) 255. Next, as shown in Figure 2,
The 1"M luminance signal input to the DOC circuit 251 is subjected to a predetermined dropout compensation process, and then sent to the limiter 25.
2 to the FM demodulation circuit 253, and
It is output to the adder 241 via the level adjustment variable resistor VRa.

Further, the FM luminance signal input to the FM@modulation circuit 253 is output to the adder 236 via the de-emphasis circuit 254 after being subjected to FM demodulation.

On the other hand, the low frequency conversion color signal input to the ACC circuit 255 is outputted to the high frequency conversion circuit 256 after being subjected to a predetermined color saturation adjustment process, and is added via a level adjustment variable resistor VRb. The signal is output to the device 241. The low frequency conversion color signal output to the high frequency conversion circuit 256 is connected to the connection terminal 23.
Assuming that phase conversion processing opposite to that during recording is performed based on the head switching pulse signal input from 1, 3.58
After the conversion process to the high frequency range of MHz, the input signal is
The signal is output to an IH delay circuit 257 that delays the signal by a horizontal period, and an adder 258, where the output of the IH delay circuit 257 and the output of the high frequency conversion circuit 256 are added together. In this adder 258, after a known process of canceling crosstalk from adjacent tracks is performed,
The added signal is output to the adder 236, and the adder 23
6, the signal is added to the luminance signal output from the de-emphasis circuit 254 and output to the PB side of the recording/reproducing switch 224. The video signal output to the common side of the recording/playback switch 224 is output to the external video output terminal 238 and the sync separation circuit 237.
The vertical synchronization signal is separated and output to connection terminals 230 and 245. Furthermore, the FM luminance signal and low frequency conversion color signal for dubbing which are the output of the adder 241 are as follows:
It is output to the connection terminal 242. Note that terminals of the variable resistors VRa and VRb on the adder 241 side are connected to ground via load resistors Ra and Rh, respectively. Further, variable resistors VRa and VRb are used for level adjustment of the luminance signal and color signal output to the connection terminal 242.

The audio signal input to the audio amplification circuit 215 is amplified and then output to the connection terminal 229 via the REC side of the recording/reproduction switch 225. On the other hand, the audio signal input to the connection terminal 229 is transmitted to the external audio output terminal 2 via the PB side of the recording/reproduction switch 225 and the audio amplification circuit 239.
40.

The recording/reproducing changeover switches 223, 224, and 225 are switched to the REC side or the PB side in conjunction with each other by a changeover control circuit 226. This switching control circuit 226 outputs an RFC switching signal or a PB switching signal to the connection terminal 228 when the recording/reproducing switching switches 223, 224, and 225 are switched to the REC side or the PB side, and on the other hand, the RFC switching signal or the PB switching signal is output to the connection terminal 228. The switching signal is transmitted from the connection terminal 228 to the switching control circuit 2.
26, the switching control circuits 226 respectively switch to the REC side or the PB side. Note that when the dubbing switch 246 is turned on, the switching control circuit 226 sets the recording/reproducing switch 223 to 225 to P.
At the same time as switching to the B side, the PB switching signal is connected to the connection terminal 2.
28, and further output the RFC switching signal to the connection terminal 243.
Output to.

Furthermore, the recording/reproducing deck sections A and B30 in FIGS. 1 and 3
The configurations of 0a- and 300b will be explained.

As mentioned above, the recording/reproducing deck sections A and B 500a and 30
The configuration of the recording/reproducing deck section A300a is the same, and the configuration of the recording/reproducing deck section A300a will be described below as a representative example.

In FIGS. 1 and 3, the FM luminance signal and the low frequency conversion color signal input to the connection terminal 310a are output to the adder 319 via the REC side of the recording/reproducing switch 315. In addition, the audio signal input to the connection terminal 312a is transmitted to the audio modulation circuit 3 via the recording/reproducing switch 317 on the OREC side.
26 and is subjected to FM modulation and then output to an adder 319. Furthermore, the vertical synchronization signal input to the connection terminal 313a is input to the servo control circuit 329,
The servo control circuit 329 controls the drum motor 330
The pulse generator (hereinafter referred to as PG) installed in
Based on the PC pulse signal output from 332 and the vertical synchronization signal, the drum motor 330 is rotationally driven, and a control signal for controlling the rotational phase of the drum motor 330 is output to the tracking pilot signal generation circuit 331. A head switching pulse signal is output to the head switching switch 321 and the connection terminal 314. Further, during playback, the servo control circuit 329 rotates the drum motor 330 based on a control signal input from a tracking pilot signal identification circuit 328 (described later) in addition to the PG pulse signal L, and uses the head switching pulse signal to switch the head. It is output to the switch 321 and the connection terminal 314a.

The adder 319 adds the manually inputted FM luminance signal, low frequency conversion color signal, FM audio signal, and tracking pilot signal, and then outputs the signal to the recording amplifier 320 and the recording/playback switch 3.
The output signal is outputted to two magnetic heads 322a or 322b for recording and reproducing provided on a drum (not shown) at an angle of 180° through the REC side of 16 and a head changeover switch 321 which is switched by a head changeover pulse signal. ,
The information is recorded on a videotape attached to the recording/reproducing deck A300a.

On the other hand, the signal reproduced by the magnetic head 322a or 322b is transmitted to the L
PP324, PB side of recording/playback switch 315 and BP
Output to F325.

In the LPF 324 , the tracking pilot signal is extracted from the input signals and then input to the tracking pilot signal identification circuit 328 .
A control signal for controlling the rotational phase of is output to the servo control circuit 329. In addition, the recording/playback switch 3
The signal input to the PB side of 15 is output to the connection terminal 310. Furthermore, the signal input to BPF325 is FM
After only the audio signal is extracted, it is FM demodulated in the audio demodulation circuit 327, and the demodulated audio signal is output to the connection terminal 312 via the PB side of the recording/reproduction switch 317.

The recording/reproducing changeover switches 315, 316, and 317 are switched to the REC side or the PB side in conjunction with each other by a changeover control circuit 318. This switching control circuit 318 outputs an RFC switching signal or a PB switching signal to the connection terminal 311a when the recording/reproducing switching switches 315, 316 and 317 are switched to the REC side or the PB side, and on the other hand, it outputs an RFC switching signal or a PB switching signal to the connection terminal 311a. When a signal is input from the connection terminal 311a to the switching control circuit 318, the switching control circuit 318 interlocks with the recording/reproducing switch 315, 316, and 3, respectively.
17 to the REC side or PB side.

The operating method and operation of the camera-integrated VTR system constructed as described above will be explained with reference to FIGS. 1 to 3.

(1) Shooting and recording mode During shooting and recording, as shown in FIG. 3, the imaging camera section 100 and the recording/reproducing deck section A300a are connected and operated. As a result, the connecting fixing members 410 and 41 are detachably connected to the imaging camera unit +00 and the recording/reproducing deck unit A300a.
1, and the imaging camera section 1
The removable connection terminals 120 to 123 of 00 are the removable connection terminals 310 of the recording/playback deck A300a, respectively.
a to 313a. At this time, the operator switches the recording/reproducing changeover switches 110 to 12 and 315 to 3'7 to the REC side, respectively.

As a result, the images taken by the camera section 11 are recorded on the video tape attached to the recording/reproducing deck section A300a, and the images being taken can be viewed using the electronic viewfinder 65. Also, the audio signal input to the microphone 114 is recorded on the videotape.

(2) Speaker playback mode Similar to the above-mentioned shooting and recording mode, as shown in Figure 3,
The photographing camera unit lOO and the recording/reproducing deck unit A300a are connected and operated. The operator switches the recording/reproducing changeover switches llO to 112 and 315 to 317 to the PB side. As a result, the video tape loaded on the recording/playback deck A300a can be played back using the magnetic heads 322a and 322b, the played video signal can be viewed using the electronic viewfinder 65, and the played video signal can be viewed using the electronic viewfinder 65. The recorded audio signal can be heard using the speaker 117.

(3) Tuner or external input recording mode In this mode, as shown in FIG.
0 and the recording/reproducing deck section A300a are connected and operated.

As a result, the signal processing section 200 with tuner and the recording/reproducing deck section A300a are fixed to each other by the detachable connection fixing members 412 and 413, and the detachable connection terminals 227 to 23+ of the signal processing section 200 with tuner are fixed to each other. are respectively connected to detachable connection terminals 310a to 314a of the recording/reproducing deck section A300a. At this time, the operator switches the recording/playback switches 223 to 225 and 315 to 317 to the REC side, and also outputs the video signal and audio signal output from the tuner circuit 211 and the video input to the external video input terminal 216. The tuner/external changeover switches 212 and 2+3 are switched to the tuner side or the external side depending on the signal to be recorded among the audio signals inputted to the signal and external audio input terminals 2!7. As a result, the tuner circuit 2
11 or input to the external video input terminal 216, as well as the tuner circuit 2.
Audio signal output from 11 or external audio input terminal 21
The audio signal inputted to 7 is recorded on a videotape attached to the recording/reproducing deck section A300a.

(4) External output playback mode In this mode, as in the above tuner or external input recording mode, as shown in FIG. 1, the tuner-equipped signal processing section 200 and the recording/reproducing deck section A300a are connected and operated . At this time, the operator switches the recording/reproducing switch 223 to 225 and 315 to 317 to the PB side.

As a result, the video tape loaded on the recording/reproducing deck section A, 300a can be played back using the magnetic heads 322a and 322b, and the played video signal can be output to the external video output terminal 238.
The reproduced audio signal can be output to external audio output terminal 240.

(5) Dubbing mode In this mode, like the above (3) tuner or external input recording mode and (4) external output playback mode,
As shown in the figure, the tuner-equipped signal processing section 200 and the recording/reproducing deck section A300a are connected, and the tuner-equipped signal processing section 200 and the recording/reproducing deck section B500b are also connected and operated. By the latter connection, the tuner-equipped signal processing section 200 and the recording/reproducing deck section B500b are fixed to each other by the detachable connection fixing members 414 and 415, and the detachable connection terminals 242 to 245 of the tuner-equipped signal processing section 200 are fixed to each other. are respectively connected to detachable connection terminals 310b to 313b of the recording/reproducing deck section B500b. At this time, the operator turns on the dubbing switch 246. In response, the switching control circuit 226 switches the recording/reproducing switches 223 to 225 to PB.
At the same time, connect the PB switching signal to the connecting terminal 22.
8 and 311a to the switching control circuit 318a of the recording/reproducing deck section A300a.
It is output to the switching control circuit 318b of 0b. As a result, the recording/reproducing changeover switches 315 to 317 of the recording/reproducing deck section A300a are switched to the PB side, and the recording/reproducing changeover switches 315 to 317 of the recording/reproducing deck section B500b are switched to the REC side.

At this time, the video tape loaded on the recording/reproducing deck section A300a can be played back using the magnetic heads 322a and 322b, and the reproduced f2F~1 luminance signal and low frequency conversion color signal are transferred to the recording/reproducing deck section A300a. A300a switch 321
1 PB side of recording/playback switch 316, playback amplifier 323
, the PB side of the recording/playback switch 315 and the connection terminal 310
a to the connection terminal 227 of the tuner-equipped signal processing section 200, and then to the HPF 232 and LPF via the recording/reproduction switch of the processing section 200 and the PB side of the J channel 223.
233, the FM luminance signal and the low frequency conversion color signal are respectively taken out, and the FM luminance signal is input to the dropout compensation circuit (hereinafter referred to as DOC) of the reproduction luminance signal processing circuit 234.
It's called a circuit. ) 251, and on the other hand, the low frequency converted color signal is input to an automatic color saturation adjustment circuit (hereinafter referred to as ACC circuit) 255 of the reproduced color signal processing circuit 235.

Next, as shown in FIG. 2, the FM luminance signal input to the DOC circuit 251 is subjected to predetermined processing, and then output to the FM demodulation circuit 253 via the limiter 252, as well as to the level adjustment variable resistor VRa. adder 24 via
1 is output. FM input to the FM demodulation circuit 253
After the luminance signal is subjected to FM demodulation, it is output to the adder 236 via the de-emphasis circuit 254.

On the other hand, the low frequency conversion color signal input to the ACC circuit 255 is outputted to the high frequency conversion circuit 256 after being subjected to a predetermined color saturation adjustment process, and is added via a level adjustment variable resistor VRb. The signal is output to the device 241. The low frequency conversion color signal output to the high frequency conversion circuit 256 is 3.58 MHz.
After the conversion process to the high frequency band is performed, the IH delay circuit 257
and is output to the adder 258, and the adder 258 outputs I
The output of the H delay circuit 257 and the output of the high frequency conversion circuit 256 are added. In this adder 258, after a known process of canceling crosstalk from adjacent tracks is performed, the added signal is output to an adder 236.
The adder 236 adds the luminance signal output from the de-embedance circuit 254 to the recording/playback switch 22.
It is output to the PB side of 4. This recording/playback switch 224
The video signal output to the common side of is output to an external video output terminal 238 and a sync separation circuit 237, and a vertical sync signal is separated in the sync separation circuit 237 and output to connection terminals 230 and 245.

Furthermore, F for dubbing which is the output of the adder 241
The M luminance signal and the low frequency conversion color signal are outputted to the connection terminal 310b of the recording/reproducing deck section B500b via the connection terminal 242, and the FM luminance signal and The low frequency conversion color signal is sent to the REC side of the recording/reproducing switch 315 of the recording/reproducing deck section B500b, the adder 319, the recording amplifier 320, and the recording/reproducing switch 316.
The magnetic head 32 via the REC side and the switch 321
2a or 322b.

Therefore, the magnetic head 322a of the recording/reproducing deck section A300a
Or, the FM luminance signal and low frequency conversion color signal reproduced by
322a or 322b to the recording/reproducing deck section B500b.
recorded on videotape attached to the

In this dubbing process, FM demodulation and FM variation processing are not performed on the reproduced FM luminance signal, while high-frequency conversion and low-frequency conversion processing are performed on the reproduced low-frequency conversion color signal. Since the recording/playback deck part B500 has not been
There is an advantage that non-linear distortion due to the above-mentioned processing does not occur in the recording FM luminance signal and the low-frequency conversion color signal output to the magnetic head 322a or 322b.

In the above embodiment, the imaging camera section +00 and the recording/reproducing deck section A300a are combined and connected together for operation during photographic recording and speaker playback, and the tuner or external tuner is used during external manual recording and external output playback. With signal processing! ! 5200 and the recording/reproducing deck section A300a can be connected and operated in combination, and furthermore, the signal processing section with tuner 200, the recording/reproducing deck section A300a, and the recording/reproducing deck section B500b can be connected and operated in combination during dubbing. As a result, the combined device bodies can be made smaller in size compared to the conventional example, and the operability of the camera-integrated VTR system can be improved.

[Effects of the Invention Two or more] As described in detail, according to the present invention, there are provided a reproduction means for reproducing the recorded video signal recorded on the first videotape, and a recording means for recording the recorded video signal on the second videotape. and a connection means for outputting the recorded video signal reproduced by the reproduction means to the recording means, so that dubbing processing can be performed without performing FM modulation/demodulation processing and high-frequency conversion and low-frequency conversion processing. Therefore, there is an advantage that no deterioration of the recorded video signal occurs.

[Brief explanation of the drawing]

FIG. 1 shows a camera-integrated VT in which a signal processing section with a tuner and two recording/reproducing deck sections are connected, which is an embodiment of the present invention.
A block diagram of the R system; FIG. 2 is a block diagram of the reproduction luminance signal processing circuit 234 and reproduction color signal processing circuit 235 of the signal processing section with tuner shown in FIG. 1; FIG. FIG. 2 is a block diagram of a camera-integrated VTR system connected to a re-decking unit. +00...Imaging camera section, 200...Signal processing section with tuner, 223.224
...Recording/reproduction switch, 232...Bypass filter (HPF), 233...Low pass filter (LPF)
, 234... Reproducing luminance signal processing circuit, 235... Reproducing color signal processing circuit, 236 Adder, 237... Synchronization separation circuit, 241... Adder, 300a... Recording/playback deck section A, 300b/Recording/playback. Deck part B, 315.316... Recording/playback selector switch, 319...
Adder, 320... Recording amplifier, 321... Switch, 322a, 322b... Magnetic head, 323... Playback amplifier.

Claims (1)

[Claims] (1) A reproducing means for reproducing the recorded video signal recorded on the first videotape, a recording means for recording the recorded video signal on the second videotape, and a recording means for reproducing the recorded video signal reproduced by the reproducing means. A videotape recorder with a dubbing function, characterized in that it is equipped with a connection means for outputting to a recording means.