JPS6040973Y2 - VTR transcription system - Google Patents

Description

[Detailed explanation of the invention] This invention is based on three or more VTRs (video tape recorders).
The present invention relates to a VTR transcription system that enables mutual transcription.

Recently, the development of VTR has been remarkable, but of course in Japan,
Since the standards are not standardized internationally, there is an inconvenience that VTR tapes recorded with VTRs of different standards cannot be played back.

Therefore, certain information can be transferred to a VTR tape by VT.
When broadcasting to various locations with R, VT recorded on a VTR of the same standard as that of each location.
I have to give you the R tape.

For this reason, in information distribution sources, VTR tapes of various standards are produced by playing the VTR tapes that are to be distributed as information to various places using VTRs of matching standards, and recording the playback signals on VTRs of various standards. There is a need.

Conventional transcription work is usually done one by one by connecting two VTRs with a connector cable or the like and putting one into playback mode and the other into recording mode, which is extremely difficult to do.

The present invention has been developed based on the above circumstances, and it is an object of the present invention to provide a VTR transcription system that allows transcription work to be performed extremely efficiently and with extremely simple operation.

Hereinafter, details of the present invention will be clarified by describing embodiments shown in the drawings.

FIG. 1 shows the overall structure of the embodiment.

In the figure, SB is a switch box (connection device), and this switch box SB has four VTRIs, 2,
3.4 video and audio signal lines are connected to each output terminal.

Furthermore, two monitor televisions R0TV, P, and TV for playback monitor and recording monitor are connected to switch box SB.

The VTR1, VTR2, VTR3, and VTR4 have different standards, and an example of their combination is shown in the following table.

A television broadcast signal (on-air signal) is supplied to the VTR1, VTR2, VTR3, and VTR4 from a television antenna ANT via a distributor DA□.

Note that the VTR1, which uses the VO-2700 model that does not have a built-in tuner, is supplied through a tuner publication.

In addition, monitor TVs R, TV, P, and TV are equipped with a distributor D.
A1 is further supplied via a distributor DA2.

In addition, as shown in FIG. 3, each of the VTR1, VTR2, VTR3, and VTR4 is equipped with a reproduction switch P, SW and a recording switch R, SW that respond to the reproduction state and recording state by modifying each VTR1, VTR2, VTR3, and VTR4, respectively, as shown in FIG. The output end of is connected to switching box SB.

FIG. 2 shows the operation panel section of the switching box SB.

As is clear from the figure, symbols indicating VTR1, VTR2, VTR3 and VTR4 are written vertically on the left end side of the operation panel P, and the recording and recording of the VTR corresponding to each signal in the right and horizontal direction is written. Two indicator lights 5°6 that display the playback operation mode, three record source selection keys F-7, 8, and 9 that select the VTR that will be the record source for the corresponding VTR, and recording monitor TV R0TV or playback monitor TV P. , two monitor selection key switches 10 and 11 are provided for selecting a corresponding VTR as the VTR to be monitored on the TV.

Furthermore, an AUTO selection key switch 12 and a MANUAL selection key switch 13 are provided on the left end side of the operation panel P.

Incidentally, each of the selection key switches 7.8 to 13 is a self-illuminating button switch.

In addition, the indicator light 5 has a symbol “RFC” indicating the recording operation mode.
" is written on the indicator light 6, and a symbol "PLAY" indicating the playback operation mode is written on the indicator light 6.

Record source selection key switch? , 8.9 are marked with symbols indicating the corresponding VTRs.

For example, a record source selection key switch that corresponds to VTR1? , 8.9, each button has the symbol "VTR2"
.

“’VTR3°t,” “VTR4” are written.

The button of the monitor selection key switch 10 has a symbol "'RFC" indicating a recording monitor, and the button of the other monitor selection key switch 11 has a symbol "PLA" indicating a playback monitor.
"Y" is entered.

Each of the art and manual selection key switches 12 and 13 has a symbol "AUTO" indicating auto and a symbol "'MANUAL" indicating manual, respectively.

FIG. 3 shows a circuit configuration related to video signals within switching box SB.

As is clear from the figure, in the switching box SB there are four selectors 5EL1, 5EL2.5EL corresponding to vTR1, VTR2, VTR3, and VTR4, respectively.
3°SEL 4 is provided.

Each selector SEL l, 5EL2.5EL3, 5E
61 auto on L4, manual selection key switch 12.1
3 to selectively supply either an auto control signal or a manual control signal via control signal lines 14 and 15.

Also, -tzt, lid 5EL1, 5EL2, 5EL3,
5EL4! : are VTRl, VTR2, VTR3 respectively
, VTR 4 outputs the reproduced video signal from each line output terminal OUT to the video signal distribution line 16. 17
．． 18 and 19.

Each of the selectors 5ELl, 5EL2, 5EL3, and 5EL4 selects one of the reproduced video signals supplied from the VTRs other than the corresponding VTR, and supplies it as a recording video signal to the line input terminal of the corresponding VTR. At the same time, it is supplied as a recording monitor video signal to the recording monitor television R0TV via a common recording monitor amplifier RA.

In addition, each selector 5ELl, 5EL2, 5EL3, 5E
L4 supplies the playback video signal supplied from the corresponding VTR as a playback monitor video signal to the playback monitor television PTV via a common playback monitor amplifier PA.

Record source selection key switches 7.8.corresponding to the selectors 5EL1, 5EL2, 5EL3.5EL4, respectively.
9 supplies a selection control signal in the manual operation mode.

In addition, selectors 5ELl, 5EL2.5EL3°SE
L4 includes control signal distribution lines 20, 21, and 20, 21, and 20, respectively, from the playback switches p and sw of the VTRs other than the corresponding VTRs.
A selection control signal in the automatic operation mode is supplied via terminals 22 and 23.

Furthermore, selectors 5EL1, 5EL2, 5EL3°SE
Monitor selection signals are supplied to L4 from corresponding recording and playback monitor selection key switches 10 and 11, respectively.

FIG. 4 shows the internal structure of the selector SEL2.

As is clear from the figure, the selector SEL 2 has an amplifier A built-in, and the video signal distribution line 16.18.1
VTR1, VTR2, VTR3, supplied from 9
Switch Q, which controls the playback video signal from VTR4.
Q2. Q3 selects and supplies the output to amplifier A, and outputs the output of amplifier A as a recording video signal to be supplied to VTR 2, as well as outputting it as a recording monitor video signal via control switch Q4.

Further, the reproduced video signal from the corresponding VTR 2 supplied from the video signal distribution line 17 is output as a reproduced monitor video signal via the control switch Q5.

Then, the control switch Q-engine? Q2t Q3 is turned on by the selection control signal from the corresponding record source selection key switch 7.8°9, and the control switch Q6. Q
7. Control switch Q9. Qlow Q
The switch is selectively turned on via the ll.

Further, the control switch Q is turned on by a monitor selection signal from the corresponding recording monitor selection key switch 10, and the control switch Q is turned on by a monitor selection signal from the corresponding playback monitor selection key switch 11. I have to.

In addition, other selectors 5ELI, 5EL2, 5EL3°S
EL 4 also has the same configuration as the aforementioned selector SEL 2.

Further, although the above description has been about the circuit configuration related to video signals, the same applies to the circuit configuration related to audio signals.

Furthermore, the explanation of the lighting circuit for the indicator lights 5 and 6 is omitted, but in short, it is sufficient to make them blink in response to the on/off operation of the playback and recording switches P, SW, R, and SW of the corresponding VTR. .

With this configuration, now, for example, VTRl,
If you want to perform transcription in combination with VTR2, or
To explain the case where transcription work is performed independently in the combination of TR1 and VTR2 and the combination of VTR3 and VTR4, first operate the manual selection key switch 13 to enter the manual operation mode, and then press the record source selection key switch 7 corresponding to VTR2. Operate switch 7 corresponding to VTR1 in ゜8.9 to put VTR1 into playback operation state.
If VTR2 is set to line recording mode, that VTR1
, VTR 2, the transfer operation is immediately started.

In this state, similarly, if you operate the switch 9 corresponding to VTR4 among the record source selection key switches 7.8.9 corresponding to VTR3 and set VTR4 to the playback operation state and VTR3 to the line recording operation state, VTR3 ,V
Transcription work is also initiated independently between TR4.

In addition, during this transcription work, VTR2 or VTR3
By operating the recording monitor selection key switch 10 corresponding to the recording monitor selection key switch 10, the recorded contents in the VTR 2 or VTR 3 can be monitored on the recording monitor television RTV.

Similarly, if the playback monitor selection key switch 11 corresponding to VTR1 or VTR4 is operated, VTR1 or VTR4 will be displayed.
The content of the playback can be monitored on the playback monitor television PTV.

In this manual operation mode, various combinations can be made arbitrarily by operating the record source selection key switches 7, 8, and 9.
2. It is also possible to simultaneously record on VTR3 and VTR4.

However, as mentioned above, the content played on VTR1 can be transferred to another VTR.
When simultaneously recording on TR2, VTR3, and VTR4, it is advantageous to select the automatic operation mode described below.

That is, in the case of the above-mentioned transcription work, first operate the auto selection key switch 12 to set the automatic operation mode, put the VTR2, VTR3, and VTR4 to the line recording operation state to perform the recording operation, and then put the VTR1 into the playback operation state. For example, the VTR2, VTR3, and VTR4 automatically become in a state of recording the content reproduced by the VTR1 without having to operate the record source selection key switch.

Therefore, the content reproduced by one VTR can be efficiently transferred to three VTRs at the same time.

In this case as well, the reproduction contents and recording contents of each VTR can be monitored on the monitor televisions R0TV, p, and TV, as in the case of the manual operation described above.

If it is desired to record on-air signals from the television antenna ANT in each VTR, by putting each VTR into an on-air recording mode, the on-air signals can be recorded independently of the switching box SB.

In addition, in the embodiment described above, four VTRs each having a different standard were used, but the number of VTRs may be three or more, and all of the VTRs used may have different standards. It is not necessary to use the same standard, and multiple units of the same standard may be used.

Furthermore, although the automatic function of the switching box in the above embodiment is extremely convenient and useful when transcribing is performed simultaneously on a large number of VTRs, it is not possible to use the manual function instead. If possible, it may be omitted in some cases.

As detailed above, according to the present invention, three or more VT
To provide a VTR transcription system which can perform transcription work in any combination between R and R, and which can be connected easily and efficiently because the combination connection can be performed by a simple key switch operation on a connecting device.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention; Fig. 1 is a block diagram showing the overall configuration, Fig. 2 is a front view showing the operation panel of the connecting device, and Fig. 3 is the internal circuit of the connecting device. FIG. 4 is a schematic circuit diagram showing the circuit structure of a selector used in the connection device. 1.2,3,4...VTR, RTV, PTV・
...Monitor TV, SB...Switching box (connection device).

Claims (3)

[Scope of utility model registration request] (1) Three or more VTRs, a monitor TV, and the VT
a record source selection key switch for selecting a VTR as a record source for each of the VTRs; A monitor selection key switch for selecting a VTR to be monitored on a monitor television, and a corresponding record source selection key switch provided for each VTR and activated by a corresponding VTR.
A VTR transcription system comprising a selector for connecting VTRs selected as record sources in combination and selectively connecting a corresponding VTR to the monitor television when energized by the monitor selection key switch. . (2) In addition to providing a playback monitor TV and a recording monitor TV, VT should be monitored in accordance with each monitor TV.
2. The VTR transfer system according to claim 1, further comprising a reproduction monitor selection key switch and a recording monitor selection key switch for selecting R. (3) The connection device has a manual function that connects a combination of VTRs when activated by the record source selection key switch, and an auto function that automatically connects all other VTRs to a VTR that is in playback mode. , a manual selection key switch and an automatic selection key switch.
transcription system.