JPS63171461A - Dubbing device for video software tape - Google Patents

Abstract

PURPOSE:To make a space factor efficient by adopting the constitution of two slaves such that are formed in a housing of a slave VTR to have common constitution parts. CONSTITUTION:Tape drive mechanism 11, 11', servo mechanisms 8, 8' and recording signal processing sections 13, 13 are provided individually, and a system control section 7, a video circuit 9, an audio circuit 10, and a power supply 12 are formed in common. In applying tape dubbing, the video circuit 9 applies AGC, clamp, emphasis and FM modulation or the like to the input from the video/audio distributer of the master VTR to set the cylinder head of the tape drive mechanism sections 11, 11' in the recording signal processing section 13, 13' to an optimum value and similar processing is applied to the output of the audio circuit 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a dubbing device for video soft tape.

(Prior Art) Recently, with the remarkable spread of video tape recorders (hereinafter referred to as VTRs), the demand for soft tapes has increased significantly, and the demand for soft tapes has been increased efficiently.

It is desired to develop a dubbing device that can supply dubbing tape at low cost.

As shown in FIG. 4, a conventional dubbing device supplies a video signal and an audio signal from a mask VTR 1 using, for example, a 1-inch tape to a plurality of slave VTRs 3 via a video/audio distributor 2. This is a mechanism for dubbing by issuing a simultaneous recording command from the controller 5 via the controller 4. In addition, slave VT
Although the R3 is structurally unchanged from general commercially available VTRs, it is designed with an emphasis on reliability, retains remote control functions for various controls, and has a master VT control function.
For R, a tape whose width is wider than that for household use, for example, 1 inch, is used.

Figure 5 shows a slave VT conventionally used in the above dubbing device.
In the block diagram showing the configuration of R, 6 indicates a casing, inside which are system control units 7. Servo mechanism 8. Video circuit 9. An audio circuit 10 and a tape drive mechanism section 11 are incorporated, and a power supply 12 supplies power to them.

(Problems to be Solved by the Invention) However, the conventional dubbing devices as described above are unable to keep up with the demand for dubbing soft chips, which has increased significantly in recent years. There are high-speed dubbing devices or dubbing methods that are double or triple speed, and some have been put into practical use, but the equipment costs are high.

It is insufficient in terms of reliability and maintenance, and even if such equipment is used, it requires changes to one peripheral system, or it is difficult to redub in-cassette tapes.

However, another common-sense method for dubbing a large amount of soft tape is to install a large number of dubbing devices.

However, this requires a large amount of money to secure land, buildings, or necessary facilities for the equipment, and it is difficult to realize it quickly.

In view of the above, it is an object of the present invention to provide a dubbing device that can keep up with the demand for soft tapes within the current limited installation of land and buildings.

(Means for Solving the Problems) To achieve the above object, the present invention has two slave VTRs used in a dubbing device in a single conventional slave VTR housing.
This is achieved by configuring two slave VTRs using commonly configurable parts.

(Function) The slave VTR constructed as described above enables the production of twice as many dubbing soft tapes as before, and is space-efficient because the slave VTR is constructed with fewer parts than two conventional devices. It is efficient and economical, and can be expected to save power and labor.

(Example) Hereinafter, the present invention will be explained using examples and drawings.

FIG. 1 is a block diagram of a slave VTR used in an embodiment of the present invention, in which reference numerals 13 and 13' designate recording signal processing units, and other symbols correspond to the explanations in FIG. 5.

As is clear from this figure, the slave VT used in the present invention
The configuration of R has two tape drive mechanisms 11° and 11', each of which requires, for example, 8 servo mechanisms.
, 8', and the recording signal processing section is 13 and 13', respectively.
and other system control units 7. Video circuit 9. Audio circuit 10. The power source 12 is configured in common.

When dubbing a tape with this configuration, the video circuit 9 receives the input from the video/audio distributor on the master VTR side.
GC, clamp, emphasis.

FM modulation, etc. is performed, and the recording signal processing section 13.13' sets the optimum value for the head of the cylinder included in each tape drive mechanism section 11.11'.Similar processing is also performed on the output of the audio circuit 10. It will be done.

Incidentally, there is a tendency for recent audio signals to undergo HD (high duty) processing, and the audio circuit 10 in FIG. 1 does not separate this processing, but the gist of the present invention is to summarize.

Two slave VTRs in one housing 6.

By using common configurations as much as possible, the space factor can be improved.

FIG. 2 is a block diagram of the dubbing apparatus of the present invention corresponding to FIG. The difference is that the configuration uses a VTR 3'. Note that in the slave VTR 3', the tape/drive mechanism section 11.11' can be provided separately in the top and bottom or left and right in one housing as shown in FIG. 3(a).
FIG. 3(b) shows a conventional example for comparison.

(Effects of the Invention) As is clear from the above detailed description, the present invention has two slave VTRs that are approximately the same size as one conventional slave VTR, and therefore a dubbing device that uses the slave VTRs is With almost the same installation space, it is possible to dub twice as many soft tapes as before, and the slave VTRs have common parts.

It is cheaper and more reliable than the conventional two-slave VTR, and the mask VTR, system control unit, video or audio distributor, and other components that make up the conventional dubbing device are the same as the conventional dubbing device. Because of this, there are effects such as equipment changes can be achieved with less investment.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a slave VTR used in the present invention, FIG. 2 is a system diagram of the entire dubbing apparatus of the present invention, FIG. 3 is an auxiliary diagram for explaining the present invention, and FIG. 4 is a block diagram showing the configuration of a slave VTR used in the present invention. A block diagram of a slave VTR in a conventional dubbing apparatus. FIG. 5 is a system diagram of a conventional dubbing apparatus. 1... Master VTR12... Video/audio distributor,
3... (Conventional) slave VTR 14... Controller controller, 5... Controller, 6... Housing, 7... System control unit, 8... Servo mechanism,
9... Video circuit, 10... Audio circuit, H, 11
'... Tape drive mechanism section, 12... Power supply, 13.
13'...recording signal processing section. Figure 1 Whistle 1M Figure 2 A〉-%) kN Figure 4 Figure 5

Claims (1)

[Claims] In a video soft tape dubbing device, two tape drive mechanism sections are arranged in one housing, either vertically or horizontally, and the necessary components such as the corresponding servo drive mechanism section and recording signal processing section are individually configured. A video soft tape dubbing device characterized in that the other commonly configured circuits, configurations, etc. are configured using a composite slave video tape recorder having two commonly provided slave video tape recorder functions. .