JPH0727667B2 - Video equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a video device, and more particularly to improvement of a video device having a plurality of deck sections.

[Prior Art] A video device having a plurality of decks is used for mass dubbing of video software or transferring various video software programs to a plurality of monitors.

FIG. 10 shows a video device 10 having two deck sections. At the same time, the video device 10 has a configuration in which two deck parts 14 and 16 are respectively incorporated in a single housing 12. The decks 14 and 16 are arranged side by side because the tapes need to be adjusted to properly run in the running system in the manufacturing process of the video device 10. Further, the housing 12 has a built-in recording / reproducing circuit (not shown) for each of the deck portions 14 and 16, and has operation key buttons 18 and 20, respectively.

By the way, in the production of video software, generally, several hundred video devices are installed, and the desired video software is simultaneously dubbed on many video cassette tapes. Moreover, when monitoring the video software, a plurality of monitors are used. When the same video software program is displayed on the screen, the video signal is distributed and supplied from one video device to a plurality of monitors. On the other hand, when displaying various video software programs on a plurality of monitors, one video device is prepared for one monitor. For example, in a BGV using a plurality of monitors, an explanation using a video device at various exhibitions, etc., different programs are displayed on each monitor.

[Problems to be Solved by the Invention] However, the above conventional techniques have the following disadvantages.

(1) Mass dubbing of video software The trend of software in the video print market today is extremely wide, including movies, music, video magazines,
Wide variety of corporate videos. In addition, the number of video software shipped is about to reach 20 million per year. In order to cope with such a situation with the conventional software production system, it is necessary to further increase the number of installed video devices.

However, with this method, the management associated with the increase in the number of vehicles becomes very complicated, and the installation space is required accordingly. For this reason, there is naturally a limit to the increase in the number of installed units, and there is a demand for a technique for efficiently mass-producing high-quality video software.

(2) Case in which the program to be reproduced is divided into a plurality of tapes In such a case, it is necessary to replace the tapes for each video device, and the operation is troublesome.

(3) In the conventional device shown in FIG. 10, in this device, the deck portions 14 and 16 are arranged in parallel in consideration of the adjustment in the manufacturing process, so that the installation space becomes large. In addition, only one of the deck sections can be
I can't take it out of. Therefore, even if a failure occurs in only one of the deck sections and the other can operate normally, both deck sections cannot be used during the repair.

The present invention has been made in view of the above points, and is suitable when a large number of deck sections are used at the same time, and it is possible to improve the efficiency of mass dubbing, reduce the installation space, and improve the operability. It is an object of the present invention to provide a video device which can be used.

[Means for Solving the Problem] One aspect of the present invention is to perform a recording process on a plurality of deck portions that magnetically record at least a video signal on a magnetic tape, and the video signal that is common to the plurality of deck portions. A video device having a recording signal processing system for performing recording processing of the recording signal processing system for performing recording processing on the video signal common to the plurality of deck sections, and recording operation of the plurality of deck sections simultaneously or continuously. The operation mode instructing means for instructing an operation mode to perform the operation, and the control means for controlling the operation of the plurality of deck parts in accordance with the operation mode instructed by the operation mode instructing means. The common recording signal processing system separates a luminance signal recording processing circuit that frequency-modulates the luminance signal related to the video signal and a color signal related to the video signal from the video signal. A color signal recording processing circuit for specifying a color rotation by using a reference pulse generated based on a synchronization signal and performing frequency conversion into a low frequency band.

Another invention is a video device having a plurality of deck sections for reproducing at least a video signal from a magnetic tape, and a reproduction signal processing system for performing a reproduction process on the video signal common to the plurality of deck sections, Operation mode instructing means for instructing an operation mode of performing the reproducing operation of the plurality of deck sections simultaneously or continuously, and operation control of the plurality of deck sections according to the operation mode instructed by the operation mode instructing means And a reproduction signal processing system common to the plurality of deck sections, a luminance signal reproduction processing circuit for frequency demodulating a luminance signal related to the video signal, and a frequency conversion of a color signal related to the video signal. And a color signal reproduction processing circuit that operates.

Another aspect of the present invention is a video device having a plurality of deck portions capable of recording and reproducing video signals and audio signals for a predetermined medium, wherein a signal processing board is formed detachably from a device frame. A signal and audio signal recording / reproducing signal processing system is provided in common for each deck section,
The recording signal processing system and the reproduction signal processing system are provided on separate substrates and are configured to be interchangeable.

Further, another invention is characterized in that, in the above-mentioned invention, the deck portions are arranged in an overlapping manner and are detachably attached to the apparatus frame.

Yet another method is characterized in that, in the above-mentioned invention, stop control means for stopping the operation of any desired deck section independently of the operation of the other deck section is provided.

[Operation] According to the present invention, the signal processing for recording or reproducing for each deck is performed by the recording or reproducing signal processing system for the video signal which is provided in common for each deck.

At this time, the mode designation means is used by the operator to specify the mode of recording or reproduction in each deck portion simultaneously or continuously, and the operation is performed in each deck portion in accordance with the mode designated by the control means. .

Also, the signal processing circuit is provided on each of a separate substrate for the recording signal processing system and the reproduction signal processing system, and by exchanging these substrates, the recording device and the reproduction process are mutually exchanged.

Furthermore, each of the plurality of decks is arranged in a stack and is detachably attached to the device frame.
In the case of a failure, the operation is stopped by the stop control means independently of other decks, and the repair and replacement of the decks are performed.

EXAMPLES Examples of the present invention will be described below with reference to the accompanying drawings.

<Basic Configuration of Embodiment> First, a basic circuit configuration of an embodiment of the present invention will be described with reference to FIG. In the figure, the broken line shows the connection during signal reproduction. Also,
The same reference numerals are used for common elements in multiple deck sections.

In the figure, the video input / output unit is connected to the video recording processing unit 32 or the video reproduction processing unit 34 on the one hand, and is connected to the sync separation unit 36 on the other hand. The video recording processing unit 32 or the video reproduction processing unit 34 is connected to the sync separation unit 36, the video amplifier unit 44 of each deck unit 38, 40, 42, and the system controller 46, respectively. Further, the sync separation section 36 is connected to the servo drive section 48 of the deck sections 38, 40, 42.

Next, the audio input / output unit 50 is connected to the audio recording processing unit 52 and the audio reproduction processing unit 54, respectively. The audio recording processing unit 52 and the audio reproduction processing unit 54 are the system controller 46 and the deck unit 3
The voice amplifiers 56 and the display / operation unit 58 of 8, 40 and 42 are respectively connected. The display operation unit 58 is also connected to the system controller 46.

Further, the video amplifier section 44 of each deck section 38, 40, 42 is connected to the video side head 60, and the audio amplifier section 56 is connected to the audio side head 62. Further, each unit is supplied with necessary electric power from the power supply unit 64.

Next, the mechanical structure of the above embodiment will be described with reference to FIG. In the figure, the deck section 3 described above
8, 40 and 42 are arranged in a stacked manner, and are all attachable to and detachable from the frame 66 as illustrated by an arrow FA. These decks are attached and detached independently of each other, and electrical connection is made by a plug-in unit (not shown).

The necessary number of boards for each circuit shown in FIG. 1 are accommodated in the frame 66 excluding the display operation portion (not shown) on the front surface where the deck portions 38, 40, 42 are attached and detached. ing. Of these, the board 68 is provided with the above-described video recording processing section 32 and audio recording processing section 52, respectively.
The video reproduction processing unit 34 and the audio reproduction processing unit 54 are provided at 70.

The boards 68 and 70 are designed to be attached / detached and replaced as illustrated by the arrow FB. When the board 68 is mounted, the whole board operates as a recording device, and the board 70 is mounted instead. And the whole works as a playback device. The shape of the connector for connecting the boards at this time is the same, but the connector pins used are different for both.

<Structure as Recording Device> Next, the details of the structure when operating as a recording device will be described with reference to FIGS. 3 to 5. First, the circuit configuration on the video recording side will be described with reference to FIG. 3, in which the input side of the luminance signal recording processing circuit 32a of the video recording processing section 32 is connected to the video input / output section 30 described above. The output side is connected to the input side of the amplifier 44a of the video amplifier section 44 of the deck sections 38, 40, 42 via the amplifier 32b. Further, the input side of the color signal recording processing circuit 32c of the video recording processing unit 32 is also connected to the video input / output unit 3 described above.
The output side is connected to the input side of the amplifier 44b of the video amplifier section 44 of the deck sections 38, 40, 42 via the amplifier 32d.

Next, the output side of the reference pulse generation circuit 32e for color rotation is connected to the color signal recording processing circuit 32c, and the sync signal separation circuit 36a of the sync separation unit 36 is further connected.
The output side of is connected through the amplifier 36b. The output side of the synchronization signal separation circuit 36a is connected to the reference pulse generation circuit 32e.
Is also connected to the input side of the vertical sync separation circuit 32f. The output side of this vertical sync separation circuit 32f is
It is connected to the input side of the system controller 46.

Next, the output side of the sync signal separation circuit 36a is connected to the input side of the servo drive section 48 of each deck section 38, 40, 42 together with the output side of the system controller 46 via the amplifier 36c.

Next, the amplifier 44a of the video amplifier section 44 of the deck section 38, 40, 42,
The output side of 44b is connected to the input side of recording amplifiers 44e and 44f via level adjusters 44c and 44d, and the output side of these recording amplifiers 44e and 44f is connected to the image side head 60, respectively. Has been done. The preamplifiers 44g and 44h are necessary for reproduction.

The servo drive unit 48 of each deck unit 38, 40, 42 has a recording / playback mode, and even when used as a recording device, each deck unit runs the tape in the playback mode. It is configured to be able to.

Next, the circuit configuration on the audio recording side will be described with reference to FIG. In the figure, the voice input / output units 50a and 50b shown in FIG. 1 are connected to the input side of the switch a of the voice recording processing unit 52. High-fidelity and normal audio signals are input to the switch 52a, and their outputs are switched by a command from the system controller 46.

The hi-fi output side of the switch 52a is connected to the input side of a modulation circuit 52c that performs FM modulation via a level adjuster 52b. The output side of the modulation circuit 52c is connected to the input side of the hi-fi recording amplifier 56a of the audio amplifier section 56 of the deck sections 38, 40, 42 via the amplifiers 52d.

On the other hand, the normal output side of the switch 52a is connected to the level adjuster 5
The noise reduction circuit 52f is connected to the input side of the noise reduction circuit 52f via 2e, and the output side of the noise reduction circuit 52f is connected to the input side of the limiter 52g. And
The output side of the limiter 52g is connected to the input side of the normal recording amplifier 56b of the audio amplifier section 56 via the amplifiers 52h.

A system controller 46 is connected to each of the hi-fi recording amplifier 56a and the normal recording amplifier 56b of the audio amplifier unit 56, and drive control of each amplifier is performed according to the operation mode instructed thereby. .

The input side of the modulation circuit 52c and the output side of the limiter 52g are connected to the input side of the meter drive circuit 52i, and the output side of the meter drive circuit 52i is the display operation unit 58 shown in FIG. It is connected to a meter (described later).

Next, the display processing unit 58 will be described with reference to FIG. In the figure, the display processing unit 58 includes a remote control terminal 58a, a display unit 56b, and a mode selector switch 58.
c, eject switch 58d, meter 58e, recording / reproducing switch
58f is provided in common for each deck section.

Of these, the mode changeover switch 58c has a P / S mode changeover switch 58g for switching between simultaneous and continuous recording modes, which will be described later, and an audio mode switch 58h for instructing a hi-fi or normal audio mode. ing. Further, the eject switch 58d can be operated even while the corresponding deck section is in operation, and the tape can be temporarily taken out from the deck section.

<Operation as Recording Device> Next, regarding the operation at the time of recording in the above-mentioned embodiment,
Description will be given with reference to the drawings. First, it is assumed that the operator operates the P / S mode changeover switch 58g of the display / operation unit 58 to select the simultaneous recording mode shown in FIG. That is, as indicated by arrows FC, FD, and FE in the figure, the outputs of the recording processing unit 80 are simultaneously distributed to the deck units 38, 40, and 42, and the simultaneous dubbing operation for the tape is instructed in each deck unit. To do.

The operation state of the mode changeover switch 58c is recognized by the system controller 46. Then, by the recording instruction operation of the recording / reproducing switch 58f, the operation control of each unit is performed as follows.

First, the video recording will be described. For the video signal input from the video input / output unit 30, necessary signal processing for recording is performed by the luminance signal recording processing circuit 32a and the color signal recording processing circuit 32c of the video recording processing unit 32. That is, the luminance signal is frequency-modulated, and the color signal is low-frequency converted. At this time, the reference pulse generation circuit 32e is based on the sync signal separated by the sync signal separation circuit 36a of the sync separation unit 36.
The color rotation is determined by the reference pulse generated and output by.

In addition, a vertical sync separation circuit based on the separated sync signal
The vertical sync signal is separated by 32f and is input to the system controller 46. System controller 46
Then, the control signals for driving are output to the servo drive units 48 of the respective deck units 38, 40, 42 based on the input synchronization signal. The sync signal output from the sync separation unit 36 is also input to the servo drive unit 48. As a result, control is performed so that there is no phase difference in the rotation of the video head 60 including the two heads with different azimuths of the deck portions 38, 40, 42. For example, in the case of a two-head azimuth recording method such as the VHS method, since there is no guard band between tracks, crosstalk occurs during reproduction of the low frequency conversion chroma signal. To prevent this crosstalk, the CH-1 track advances the color signal phase by 90 ° for each line, and the CH-2 track advances the color signal phase by 90 ° for each line, and records on the tape. Are carried out respectively. Since this processing is performed commonly for each deck, the CH-1 head of each deck advances the color signal by 90 ° for each line, while the CH-2 head delays it for each line by 90 °. It is necessary to ensure that each color signal is properly recorded on the tape. This control is performed by the servo drive unit 48 in each head unit.

Further, with respect to variations in the characteristics of the image side head 60 of each deck portion 38, 40, 42, the recording level is adjusted well by the level adjusters 44c, 44d.

Next, the voice recording will be described. First, the switch 52a is switched by the system controller 46 based on the instruction of the operator, and the hi-fi amplifier 56a is brought into an operating state. In the case of hi-fi, voice input / output section 50a, 50
The audio signal input from b is input to the modulation circuit 52c.
The FM-modulated audio signal is input to the hi-fi recording amplifier 56a of the audio amplifier section 56 of each deck section 38, 40, 42. The audio signal amplified here is input to a high-fidelity audio head (not shown) of the audio head 62, and the audio signal is recorded on the tape.

On the other hand, in the normal state, the system controller 46 activates the normal amplifier 56d, the switch 52a is switched, and the audio signal is input to the noise reduction circuit 52f. The signal output from the limiter 52g is
It is input to the voice side head 62 via the normal amplifier 56d of each deck section 38, 40, 42, and normal voice signal recording is performed.

In any case, the audio signal to be recorded is input to the meter drive circuit 52i, and the meter 58e of the display operation unit 58 is displayed.
The signal level is displayed on. Even in this case,
Regarding variations in the characteristics of the audio-side heads 62 of the decks 38, 40, 42, the recording level is adjusted by a level adjuster (not shown).

Next, as shown by arrows FF, FG, FH in FIG. 6 (B), the operator first sends the signal of the recording processing unit 80 to the deck unit.
A case where an instruction is given to record on the tape of 38, then on the tape of the deck section 40, and finally on the tape of the deck section 42 will be described. Such continuous mode recording can be performed, for example, by using video software for a long time,
It is performed in the case of dividing into volumes and in the case of a time-lapse video device.

In this case, the deck 38 is first driven by the system controller 46, and the input video signal and audio signal are
It is recorded on the tape of the deck section 38. When the tape on the deck section 38 is finished, this is detected by the servo drive section 48 of the deck section 38 and transmitted to the system controller 46.

In the system controller 46, the drive of the deck section 38 is stopped based on the detection result, and the deck section 40
Is started, and the input signal is recorded on the tape of the deck section 40. Then, when the tape of the deck section 40 is finished,
Similarly, the deck section 42 is driven, and a signal is recorded on the tape of the deck section 42.

<Structure as Reproducing Device> Next, the structure when operating as a reproducing device will be described with reference to FIGS. 7 and 8. As described above, the substrate is replaced in this case, and as shown in FIG. 2, the reproducing substrate 70 is used instead of the recording substrate 68.
Is set.

First, with reference to FIG. 7, the configuration of the video reproduction processing unit 34 and the connection between the video reproduction processing unit 34 and each unit will be described.

In the figure, the signal output side of the video side head 60 of each deck section 38, 40, 42 is connected to the input side of the preamplifier 44g, 44h, respectively, these output side of the head switching switch 44i It is connected to the input side. The switch 44i is switched by a control signal from the servo drive unit 48.

Next, the output of one of the preamplifiers switched by the switch 44i is the selection switch of the video reproduction processing unit 34.
Each of them is connected to the selection input side of 34a. The selection switch 34a is switched by a control signal from the system controller 46.

Next, the output side of the selection switch 34a is connected to the input sides of the luminance signal reproduction processing circuit 34b and the color signal reproduction processing circuit 34c, respectively, and these output sides are all connected to the addition circuit 34a.
It is connected to the input side of d. And this adder circuit 34d
The output side of is connected to the video input / output unit 30 described above.
Instead of the addition circuit 34d, an S terminal may be used, and the outputs of the luminance signal reproduction processing circuit 34b and the color signal reproduction processing circuit 34c may be output as they are without being added.

The reference pulse generation circuit 34e and the vertical sync separation circuit 34f
Are provided in the same manner as the video recording processing section 32 shown in FIG.
The connection of 6 is also the same.

Next, with reference to FIG. 8, the configuration of the audio reproduction processing unit 54 and the connection between the audio reproduction processing unit 54 and each unit will be described.

In the figure, the output side of the hi-fi reproduction amplifier 56c of each deck section 38, 40, 42 is the selection switch 5 of the audio reproduction processing section 54.
4a is connected to the switching input side, and the output of the normal reproduction amplifier 56d is connected to the switching input side of the selection switch 54b. Then, these selection switches 54a,
The switching of 54b is performed by a control signal from the system controller 46.

Next, the output side of the selection switch 54a is connected to the input side of the demodulation circuit 54c, and the output side of this demodulation circuit 54c is connected to the input side of the switch 54d. On the other hand, the output side of the selection switch 54b is connected to the input side of the noise reduction circuit 54e.
The output side of the switch 54d is connected to the other input side of the switch 54d and the input side of the limiter 54f.

The switch 54d is configured to be switched by a control signal of the system controller 46 as in the audio recording processing unit 52 shown in FIG. 4, and the output side of the demodulation circuit 54c and the limiter 54f is a meter drive circuit. Each is connected to the input side of 54g. The other parts are the same as the above-described connection configuration during recording.

<Operation as Reproducing Device> Next, regarding the operation at the time of reproducing in the above-mentioned embodiment, the ninth operation will be described.
Description will be given with reference to the drawings. First, by the operation of the mode changeover switch 58c of the display operation unit 58 by the operator,
It is assumed that the simultaneous reproduction mode shown in FIG.
That is, as shown by arrows FI, FJ, and FK in the figure, the reproduction outputs of the deck sections 38, 40, and 42 are switched to the reproduction processing section 82 by a selection switch.
It is output via 34a, and the simultaneous reproduction operation is instructed to the monitor 84.

The operation state of the mode changeover switch 58c is recognized by the system controller 46. Then, the operation control of each unit is performed as follows by the reproduction instruction operation of the recording / reproduction switch 58g.

First, the reproduction of video will be described. The video signal output from the video-side head 60 is amplified by the preamplifiers 44g and 44h, converted into a continuous reproduction signal by switching the switch 44i, and input to the selection switch 34a. Selection switch 34a
Then, the video signals from the respective deck sections 38, 40, 42 are sequentially switched and selected based on the control signal of the system controller 46 and output.

The video signals from the decks 38, 40, 42 are subjected to predetermined signal processing by the luminance signal reproduction processing circuit 34b and the color signal reproduction processing circuit 34c, that is, frequency demodulation for the luminance signal and frequency conversion for the color signal. Is performed, added by the adding circuit 34d, output to the monitor 84, and reproduced. That is, the images of the three deck sections 38, 40, 42 are selectively reproduced on the single monitor 84.

Next, reproduction of sound will be described. First, in the case of hi-fi, reproduced audio signals are output from the hi-fi reproduction amplifiers 56c of the respective deck sections 38, 40, 42 which are operating based on the instruction of the system controller 46, and the selection switch 5
It is sequentially switched and selected at 4a and output. This audio selection is performed by the system controller 46 in synchronization with the above-mentioned video signal.

The hi-fi audio signals from these decks 38, 40, 42 are
FM demodulation is performed in the demodulation circuit 54c, and the output is reproduced on the monitor 84 via the switch 54d. That is, the sounds of the three deck sections 38, 40, 42 are selectively reproduced simultaneously with the image on the single monitor 84.

On the other hand, in the case of normal, the audio signals of the respective deck sections 38, 40, 42 output from the normal reproduction amplifier 56d operating based on the instruction of the system controller 46 are input to the selection switch 54b, and are sequentially set here. The output is selected by switching. This audio selection is performed by the system controller 46 in synchronization with the above-mentioned video signal.

The normal audio signals from the decks 38, 40 and 42 are output and reproduced on the monitor 84 via the noise reduction circuit 54e and the switch 54d, respectively.

The audio level during this audio reproduction is the meter drive circuit 54
Displaying on the meter 58e by g is similar to the operation during recording.

Next, as shown by arrows FL, FM, and FN in FIG. 9B, the operator first plays the tape of the deck section 38, then the tape of the deck section 40, and finally the deck. Department
The case where an instruction is given to play the 42 tape will be described. Such continuous mode reproduction is performed, for example, in the case of continuously reproducing long-time video software divided into upper, middle, and lower three volumes.

In this case, the system controller 46 first switches the selection switch 34a, 54a or 54b to the deck section 38 and drives the deck section 38, and the video signal and the audio signal are transmitted from the deck section 38 via the reproduction processing section 82. The data is output to the monitor 84 and reproduced. When the tape reproduction of the deck section 38 is completed, this is detected by the servo drive section 48 of the deck section 38 and transmitted to the system controller 46.

In the system controller 46, the drive of the deck section 38 is stopped based on the detection result, the selection switch 34a, 54a or 54b is further switched to start the drive of the deck section 40, and the reproduction signal thereof is displayed on the monitor 84. The image and sound are input and reproduced. Then, when the tape reproduction of the deck section 40 is completed, the deck section 42 is similarly driven, and the tape reproduction of the deck section 42 is performed.

Note that, instead of the recording substrate 68 and the reproduction substrate 70 shown in FIG. 2, if a substrate having a reproduction processing section 82 of three systems is connected, the connection as shown in FIG. It is possible to monitor the tape of each deck 38, 40, 42 at the same time for three monitors.
It becomes possible to reproduce each in 84. This connection is the same as the conventional reproduction method as a result, but the operability is good because it is not necessary to perform a button operation such as reproduction start for each deck section.

Each deck section has a servo circuit for both recording and reproducing modes, and by providing a reproducing circuit for normal sound in the recording substrate 68, each deck section using normal sound is provided. The tape running system can be adjusted.

<Other Operations> Next, other operations will be described. For example, all three decks 38, 40, 42 are
Suppose 40 fails and the tape needs to be removed.
Information relating to the operating state of the mechanism is constantly exchanged between the system controller 46 and the servo drive section 48 of each deck section 38, 40, 42. Therefore, the servo drive unit 48 of the deck unit 40 informs the system controller 46 to that effect.

Then, the system controller 46 issues a recording operation stop command to the servo drive section 48 of the deck section 40, and ejects the set tape. The operation is continued in the other deck sections 38 and 42. Such an operation is also performed when the eject switch 58d of the deck section 40 is operated by an operator during the operation.

On the other hand, as described above, the deck portions 38, 40, 42 can be independently taken out from the frame 66. Therefore, if the defective deck section 40 is taken out and the spare deck section is set, the operation can be favorably continued.

Also, when the other two deck sections are in recording or reproducing operation and one deck section is stopped, by issuing a command for recording or reproducing of that deck section, It is possible to continue the operation and shift the stopped deck section to the recording or reproducing operation. In this case, for example, even if a recording command is received during recording, the operation does not change, and only the deck section in another state that has received the recording command shifts to the recording operation.

<Effects of Embodiment> As described above, according to this embodiment, the following effects are obtained.

(1) Since a common circuit part is shared and a plurality of deck parts are vertically stacked, it is possible to achieve low cost, low power consumption, and space saving as compared with the case of using a plurality of video devices. Therefore, mass dubbing can be easily performed. If the installation space is the same as the conventional one, the number of video software that can be manufactured at the same time is significantly increased, and as a result, the manufacturing cost per piece can be reduced.

(2) Since a plurality of deck sections can be operated by a common switch, operability is excellent and it is convenient to check image quality and sound quality.

(3) Since an amplifier for transmitting and receiving signals to and from each head is provided for each head, it is possible to satisfactorily adjust variations in characteristics between the heads.

(4) Both recording and reproduction can be performed only by exchanging the substrate, and the device can be efficiently configured to reduce the cost.

(5) Traveling adjustment can be performed by removing the deck units one by one. At this time, the other deck sections can perform normal operation. Therefore, when a failure occurs during operation, the failed deck section can be removed and repaired, and a spare deck section can be set to continue the operation. Therefore, the work efficiency as a whole is significantly improved.

(6) Long-term split recording of video software on multiple tapes, or continuous playback of split-recorded video software,
It can be easily performed continuously without tedious tape exchange.

(7) Partial dubbing, partial reproduction, and recording check of the program can be easily performed.

It should be noted that the present invention is not limited to the above-described embodiments at all, and the circuit configuration can be variously modified in design so as to achieve the same operation, and the present invention includes these.

For example, in the above-described embodiment, the number of deck sections that operate simultaneously or continuously is three, but the number may be appropriately set as necessary.

[Effects of the Invention] As described above, the present invention has the following effects.

(1) Since the signal processing system is formed in common in each deck section, mass dubbing and multiple monitoring can be performed efficiently with good operability.

Further, in recording, the luminance signal recording processing circuit and the color signal recording processing circuit, which handle a high frequency circuit peculiar to the video signal, can be used in common, so that mutual interference, which is a particular problem in the high frequency circuit, can be prevented and the configuration is greatly simplified it can. Furthermore, since the luminance signal reproduction processing circuit and the color signal reproduction processing circuit, which handle a high frequency circuit peculiar to the video signal, can also be used for reproduction, mutual interference, which is a particular problem in the high frequency circuit, can be prevented and the configuration is greatly simplified. it can.

(2) In addition, a plurality of decks are arranged in a stack, and if one of them fails, only the operation of that deck is stopped for processing and replacement, thus reducing the installation space. The operability can be improved and the recording / reproducing operation can be made efficient.

[Brief description of drawings]

FIG. 1 is a block diagram showing the circuit configuration of an embodiment of the present invention, FIG. 2 is a perspective view showing the appearance of the apparatus of the embodiment, and FIG.
5 to 5 are circuit diagrams each showing a detailed circuit configuration at the time of recording, FIG. 6 is an explanatory diagram showing an operation mode at the time of recording, and FIGS. 7 and 8 are detailed circuits of a main part at the time of reproduction. FIG. 9 is a circuit diagram showing the configuration, FIG. 9 is an explanatory diagram showing an operation mode during reproduction, and FIG.
The figure is an explanatory view showing the appearance of a conventional device. 30 ... video input / output section, 32 ... video recording processing section, 34 ... video playback processing section, 36 ... sync separation section, 38, 40, 42 ... deck section, 44 ... video amplifier section, 46 ... … System controller, 48… Servo drive, 50 ……… Voice input / output, 52…
… Sound recording processing unit, 54 …… Sound reproduction processing unit, 56 …… Sound amplifier unit, 58 …… Display operation unit, 60 …… Video side head, 62
…… Voice side head, 64 …… Power supply, 66 …… Frame, 6
8,70 …… Substrate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kohei Yamashita 3-12 Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa Prefecture, Japan Victor Company of Japan, Ltd. (72) Inventor Katsuaki Ikema 3--12, Moriya-cho, Kanagawa-ku, Yokohama Address Motohiro Okumura, Examiner, Victor Company of Japan, Ltd. (56) Reference JP-A-51-111413 (JP, A) JP-A-61-283088 (JP, A) JP-A-49-103615 (JP, A) 58-68754 (JP, U) JP 54-7449 (JP, B2)

Claims (5)

[Claims] 1. A video apparatus comprising: a plurality of deck sections for magnetically recording video signals on a magnetic tape; and a recording signal processing system for recording the video signals common to the plurality of deck sections. And a plurality of deck sections according to the operation mode designated by the operation mode instructing section, instructing an operation mode of whether to perform the recording operation of the plurality of deck sections simultaneously or continuously. A recording signal processing system common to the plurality of deck sections, a brightness signal recording processing circuit for frequency-modulating a brightness signal related to the video signal, and a color signal related to the video signal. Is a color whose frequency is converted to a low frequency band by specifying a color rotation using a reference pulse generated based on a sync signal separated from the video signal. Video apparatus characterized by having a No. record processing circuit. 2. A video device having a plurality of deck sections for reproducing at least video signals from a magnetic tape, and a reproduction signal processing system for performing reproduction processing on the video signals common to the plurality of deck sections, An operation mode instructing means for instructing an operation mode of whether to perform the reproducing operation of the plurality of deck sections simultaneously or continuously, and operation control of the plurality of deck sections according to the operation mode instructed by the operation mode instructing means And a reproduction signal processing system common to the plurality of deck units, a luminance signal reproduction processing circuit for frequency demodulating a luminance signal related to the video signal, and a frequency conversion of a color signal related to the video signal. And a color signal reproduction processing circuit for controlling the video signal. 3. A video apparatus having a plurality of deck sections capable of recording and reproducing video signals and audio signals with respect to a predetermined medium, wherein a signal processing board is formed detachably from the apparatus frame. A video device characterized in that a recording / reproducing signal processing system for audio signals is provided in common to each deck section, and a recording signal processing system and a reproducing signal processing system are provided on separate boards so as to be exchangeable. 4. The video device according to claim 1, 2, or 3, wherein the deck portions are arranged in a stack and are detachably attached to the device frame. A video device characterized by being configured. 5. A video apparatus according to any one of claims 1, 2 and 3, wherein the desired operation of any one deck section is independent of the operation of any other deck section. A video device comprising stop control means for stopping the operation.