JP2687326B2 - Video signal transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION   The present invention will be described in the following order. A Industrial application fields B Summary of the invention C Conventional technology (Figs. 8 to 10) D Problems to be solved by the invention (Figs. 11 and 12) E Means for solving problems (FIGS. 1 and 2) F action (Figs. 1 and 2) G Example (FIGS. 1 to 7) Effect of H invention A Industrial application fields   The present invention relates to a video signal transmitting device, for example, a television
Broadcast station automatically selects multiple tape cassettes for automatic supply
Reproduced by a raw device (hereinafter referred to as a cart machine)
Of the replayed video signal that will be sent out for broadcasting
It is suitable when applied as a video signal.
You. B Summary of the invention   The present invention relates to a reproduction video signal from a video signal reproduction device.
A video that sends the playback video signal to be sent as a broadcast video.
The reproduced video signal is not actually broadcast in the image signal transmission device.
Of the measured time, the playback video signal is the broadcast video signal.
Period that is output only during the period selected as
You can measure the playback time during the period when the display signal arrives.
And the actual broadcast time of the reproduced video signal.
Is an attempt to measure accurately. C Conventional technology   Conventionally, the car and machine provided in the television station
There is one shown in FIG.   In FIG. 8, the shelving unit 1 has a plurality of shelves, for example, 40 shelves.
1₁~ 1₄₀For example, they are arranged side by side in the vertical direction, and each shelf 1₁~ 1₄₀To
Shows the data shown in FIG. 9 in which different video signals are recorded.
Pukaset 7 is stored. Tape cassette 7 again
As a possible video tape recorder (VTR), for example
4 VTR8₁~ 8_FourHas shelves 1₁~ 1₄₀In the same vertical direction as the
It is installed side by side.   Shelving 1 and VTR8 (8₁~ 8_Four) Close to both
With a guide 3 for vertically guiding the motor 2 and the elevator 2.
Equipped with a cassette carrier,
The tape cassette 7 is received between the shelf device 1 and the VTR 8 via
It is designed to be handed over.   The elevator 2 is the shelf 1 of the shelf device 1.₁~ 1₄₀Transferred from
Receive the incoming tape cassette 7 and receive VTR 8 or shelving 1
Other shelves 1₁~ 1₄₀First shelf provided for transfer to
5 and tape cassette 7 transferred from VTR 8
A second shelf 6 for taking and transferring to the shelf device 1 is provided.
Have been. A tape cassette 7 is attached to each of the shelves 5 and 6 as a shelving device.
1 and VTR8 transfer actuator (Fig.
(Not shown) is provided for the actuator motor 9
Or the tape cassette 7 can be shelved by controlling the drive of 10
The transfer is controlled to the device 1 or the VTR8. Ma
The elevator 2 is moved up and down by the elevator drive device 4.
It is designed to do.   Therefore, the predetermined shelf 1_xIt is stored in (x = 1-40)
Tape cassette 7 to the designated VTR8_yLoad (y = 1 to 4)
If the elevator drive device 4 is used,
Shelves with openings 1_xTo the position opposite the opening of the
Move the data 2 up and down to move the shelf 1._xRemove the tape cassette 7 from
You. After that, the opening on the VTR8 side of the first shelf 5 is VTR8._yMosquito
Elevator drive to the position facing the opening for opening and removing the set.
The moving device 4 moves the elevator 2 and then the
The tape cassette 7 is driven to VT by driving the motor 9 for the tuner.
R8_yInsert into and load.   Conversely, the predetermined VTR8_v(V = 1 to 4) is loaded
Tape cassette 7 on designated shelf 1_wStore in (w = 1-40)
If the second elevator 6 is VTR8_vOpposite
To the position where the tape cassette 7 is inserted,
After that, the second shelf 6 is the predetermined shelf 1_wUntil the position facing
The elevator 2 is moved up and down with and stopped at that position.
The actuator is driven by the actuator motor 10.
Tape cassette 7 on shelf 1_wIs stored in.   Transfer and reproduction of such a tape cassette 7 is performed by a microphone.
It is controlled by the control device 14 having a computer configuration. System
The controller 14 is stored in the internal buffer memory 15
Transfer and re-install the tape cassette 7 based on the replay list.
Control raw.   Each tape cassette 7 has, for example, a so-called commercial
Like the video signal for jars and the video signal of a case of news
Video signals for each broadcast unit are recorded, and each tape cassette
Unit 7 is played back once and sent out (hereinafter referred to as event
Refer to Fig. 10 according to the event sending order.
A reproduction transmission list 19 is formed. Playback list
Reference numeral 19 is formed in advance and is formed on the outside of a floppy disc, for example.
Example when the input device 13 is stored in a partial recording medium
An external memory device consisting of a floppy disk drive, for example.
18 is transferred to the buffer memory 15.   Here, as the items of the playback transmission list 19, the event is
Sending number NO, tape cassette with a different serial number attached to each
Title TTL on the event of Tut 7, tape cassette
Playback 7 and start sending as output signal of cart machine
Playback transmission start time
Start time) STT, playback signal from tape cassette 7
Playback output time (broadcast time) DU, output signal
Stores the accumulated playback time ACT and tape cassette 7
Shelf 1₁~ 1₄₀No. BN, tape cassette 7 loaded V
TR8₁~ 8_FourThere are numbers such as VT. The sending number NO is the sending order
It is irrelevant to the
Video signal from the vision camera device or other cart
The cart machine to display the video signal from the thin
Indicates a blank period during which the reproduction and transmission operation is stopped.   The control device 14 reproduces the contents based on the reproduction transmission list 19.
Shelf 1 according to the order₁~ 1₄₀From tape cassette 7
It was taken out to the shelf 5 of the beta 2, and at that time, it was provided on the shelf 5.
The optical sensor 12 attaches the tape to the back of the tape cassette 7.
Barcode 11 representing various data related to the recorded contents
Make sure that the tape cassette you have
Make sure and VTR8₁~ 8_FourTo start playback transmission start time S
When it reaches TT, it is played back, and when playback is finished, the tape cassette
VOT8 to TSUTO 7₁~ 8_FourOriginal shelf shed from 1₁~ 1₄₀Back to
At the same time, the playback transmission list stored in the buffer memory 15
And the playback transmission list displayed on the display device 16.
It is designed to remove that item from 19.   It should be noted that the operator should visually confirm the reproduction and transmission stage.
Display the playback list 19 on the display device 16.
Shelf 1 from which the cassette 7 is removed₁~ 1₄₀Table corresponding to
Display element 17₁~ 17₄₀Is lit.   VTR8₁~ 8_FourAlways have 3 to 4 to play
Playback ends as if the tape cassette 7 is loaded.
When the tape cassette 7 is ejected, the event is played back.
Immediately load a new tape cassette 7 in sequence
And each VTR8₁~ 8_FourAlways play or
It is controlled to the reproduction standby state.   In this way, the control device based on the reproduction and transmission list 19
Any VTR8 under control of 14₁~ 8_FourOf events from
A playback video signal is output, and this is the next stage switch, for example.
Video signals from other cart machines and the
Alternately switched from the video signal directly from the vision camera device
Replaced or given special effects to the broadcasting device.
Sent out.   Thus, tape cassettes in a predetermined order for a predetermined period of time
The reproduced video signal from the TV 7 is broadcast. Problems to be solved by invention D   By the way, it is played back by the cart machine and sent out.
As described above, the playback video signal for commercial
There is a video signal. Such a commercial video signal
The so-called sponsor for the broadcast
You will have to pay the broadcasting fee to the broadcasting station for online broadcasting. Therefore,
Commercial video for both sponsors and broadcasters
Playback time of image signal (event) playback playback list 19
Whether or not it was broadcast on DU street is a serious concern.   In addition, the playback video signal that is played back and sent by the cart machine
The video signal for the above-mentioned use is used as the issue.
You. In the case of news programs, so-called announcers are shown
The video signal from the television camera device and the already recorded
The playback video signal from the cart machine
In order to create a new program to be exchanged and sent out
There are many shared stuffs. like this
For each news program broadcast under the circumstances, each staff
Recorded to determine if you are taking full responsibility
The video signal (event) for news
Playback time of the strike 19 Whether or not it was broadcast according to DU
Will be evidence.   Therefore, conventionally, the time when the event was actually played and sent
Is measured, and is attached to the external memory device 18, for example
Playback / transmission recording (running) to a recording medium (Floppy disk)
It records it as (log data).   The actual playback transmission time is conventionally measured as shown in FIG.
I was going to. For example, switch to the cart machine
And then another cart machine or TV
Until it is switched to the
In the following, we will call 3 break events)
Suppose that "XXX", "YYY", and "ZZZ" are played back and transmitted sequentially.
You.   In this case, the measurement of the playback transmission of the first event "XXX"
As for time, this event "XXX" will start at
Tart of message point) SOM_XThe video signal is sent out
The next event "YYY" should be sent from time t10 when
The controller 14 outputs the event “YY
At the time of switching to the video signal of "Y", t11 or event
"YYY" Start of Message SOM_YUp to
The distance is measured. Therefore, the start of the event "YYY"
Objet message point SOM_YIs the ending point for the event "XXX"
(End of message point) EOM_XBecomes Similarly,
As the actual playback transmission time of the event "YYY", the event
"YYY" start of message point SOM_YAt time t11
When the control unit 14 switches from the next event to the next event "ZZZ"
Point, that is, the start of message of the event "ZZZ"
J-point SOM_ZThe time until time t12 is measured.   However, the event "ZZ just before the breakline
There is no subsequent event for "Z", as described above
The measurement method cannot be applied. So, to the event "ZZZ"
The start of message point SOM at time t12_ZFrom
End point of tape running of the Bent "ZZZ" (End of Mets
Sage over point) EOMO_ZWhen the time up to time t13 has elapsed
It was in between.   Here, a switch installed in the next stage of the cart machine
Can be switched manually, for example.
The switching point BKP is preset for the event "ZZZ".
End of message point PEOM_ZCan be delayed
is there. Therefore, tape running is broadcast even if the switching operation is delayed.
End of message so that there is no interruption
Bar point EOMO_ZI am trying to run the tape up to.
Therefore, the switching point BKP is not always the end of message.
Over point EOMO_ZThe event "ZZZ" was measured without matching
The reproduction transmission time t12 to t13 is the true reproduction transmission time t12 to t14.
Often different.   In the case of a video signal for news use, as shown in Fig. 12.
In addition, two events "MMM" and "NNN" by switch
The video signal of is switched alternately at time points t16, t17, and t18.
And when it comes to single events, it emits regeneratively intermittently.
It may be broadcasted. Even in such cases
I will give an example for the event "MMM" in the measurement method of
The measured playback sending time (t15 to t18) and the true playback sending
The departure time (sum of t15 to t16 and t17 to t18) was different.   In this way, during playback transmission recorded in the run log data
If the time is different from the true playback transmission time, the video for commercial
As for signals, there is a risk of causing problems with broadcasting fees.
Yes, and for the video signal for news use,
Responsibility may be pursued.   The present invention has been made in consideration of the above points.
Accurately measure the actual transmission time of video (event) signals
To propose a possible video signal transmitting device.
You. Means for solving problem E   In order to solve such a problem, in the present invention,
Multiple types of tape cassettes 7 on which the video signals of
Cassette auto-engines 20, 21 that selectively play,
Replayed in cassette auto-engineer 20,21
The raw video signal is input through multiple channels and
Select a specific channel from the number of channels
The output playback video signal is sent as a broadcast video signal
In the video signal transmitting device having the switcher 22,
It is installed in Itcha 22 and when a predetermined channel is selected
Then, the cassette using the selected predetermined channel
Broadcast video signals are sent to the automatic engineers 20 and 21.
The logic level is
Transmission period that represents the period during which the transmission is performed by transition
Display signal T_B, T_C, T_DSending period display signal generation
Means, and provided in the cassette auto 20, 20,
Playback video signal is playback start point SOM_D, SOM_EWhen came to
Transmission signal T_B, T_C, T_DThe logic level of
The condition is that the first time
Data (SP10), then send period display signal T_B, T_C, T_D
When the logic level of is restored, the second
The time data is obtained and the difference data of the first and second time data is obtained.
(SP12), the sum of the data of the difference is reproduced.
A measuring means for measuring the actual signal transmission time is provided.
To do. F action   The switch 22 has a predetermined reproduction channel B, C or D.
If selected, is the selected playback channel B, C or D
The period during which the reproduced video signals are transmitted as broadcast signals.
Transmission period display signal T_B, T_COr T_DIs output. Total
Measuring means is the corresponding signal T_B, T_COr T_DTransitions the logic level
After each playback channel B,
Period t5 to t6, t6 to t7, t7 of reproduced video signal from C or D
Measure t8 to t8 to t9. As a result, just before the break line
Playback video signal and playback that is played for each channel
It is possible to accurately measure the actual sending time of the video signal. G Example   The present invention will be described below with reference to the drawings.
An embodiment applied to the output system will be described in detail.   In the case of this embodiment, the commercial video signal is recorded.
Multiple tape cassettes 7 and video signals for news
The recorded plural tape cassettes 7 are shown in Fig. 2 respectively.
It is stored in another cart machine 20 and 21,
Playback video signals output from each cart machine 20, 21
Given to Itchia 22. Also, switch 22 is a TV
An output video signal from the Jyon camera device 23 is given.   Here, the news cart machine 21 is shown in FIG.
Select circuit 24, VTR8₁~ 8_FourSelect the video signal from
One of the two channels B and C is used via the selection circuit 24.
And give it to switch 22.   Accordingly, the switch 22 is a channel to which a video signal is given.
A channel that connects to the television camera device 23 as a channel.
Channel A and a cart that connects to the news cart machine 21
Connected to B and C and cart machine 20 for commercial
It has four of the following Channel D. Switch 22
Automatically selects one channel according to the playback transmission list 19 described above.
One channel by selecting the channel or operating manually.
Video that comes through a channel by selecting the channel
The signal is given to the broadcasting device 25 to be broadcast.   Switch 22 is thus able to
When switching and selecting, use the selected channel
Corresponding to the cart machines 20, 21 and the television camera device 23.
Then, while only selecting the channel, tally
Signal T_A, T_B, T_C, T_DIs output as a transmission period display signal.
You.   Each cart machine 20, 21 has this tally signal T_B~ T_DUsing
By executing the processing procedure shown in FIG.
The time when each event corresponding to the channel was actually sent
(Broadcast time) is measured and external log is recorded as run log data.
Recording on the recording medium installed in the device 18
You.   That is, the controller 14 of each cart machine 20, 21 (eighth
Figure) starts the program at step SP1
After that, proceed to the next step SP2 and the event is normalized.
It is determined whether or not the playback is being performed. Normal playback motion
If a negative result is obtained because the work has not started,
Move to step SP3 and set elapsed time DUR of playback transmission operation to "0"
Then return to step SP2.   Eventually, the event will be updated based on the playback transmission list 19.
-By starting the normal playback operation, step SP2
If you get a positive result, go to the next step SP4 and restart.
Judge whether the raw point is the start of message point SOM
You. No due to not being the start of message SOM
When a fixed result is obtained, the program proceeds directly to step SP5 and the start of
If a positive result is obtained because it is the message point SOM,
Move to step SP6 and tally signal T (T_B~ T_D) Is on
After confirming that it is, move to step SP7.
As shown at time points t2 and t3,
Tally coming from Switch 22 with a non-obvious pulse
Forcibly off trigger edge and on trigger edge on signal T
Form and proceed to step SP5. In addition, step SP6
If a negative result is obtained at, without going through step SP7
Go directly to step SP5.   Step SP5 checks whether the normal playback operation is completed.
If the normal playback operation is in the process of judging,
If the normal playback operation ends after advancing to step SP8
In step SP9, the recording operation is performed.   First, the operation when normal playback is in progress is explained.
You. In this case, the tally signal is turned on at step SP8.
If it is judged whether it is triggered or not and a positive result is obtained, the step
Go to tab SP10 and tie on tape at the time of its on-trigger.
For example, a control device using the mucode signal DN as a reproduction and transmission start point
Stored in buffer memory 14 of 14 and stored in step SP2 described above.
Return.   On the other hand, a negative result is obtained in step SP8.
Then, in step SP11, the tally signal T is off-triggered.
If a negative result is obtained, the above-mentioned steps are performed.
Return to step SP2, and if a positive result is obtained, step SP12
And when the off-trigger is given and the buffer memory
When the on-trigger stored in 15 is given,
The send time is obtained from the difference, and this is already played back by the event.
In addition to the issued time DUR, the playback transmission time D of the event
Update UR and return to step SP2 above. For example, the fifth
As shown in the figure, images are recorded more than once during one tape run.
If the signal is an event to be reproduced and transmitted, the corresponding SP
In 12, the playback playback time DUR of two times is summed up and
When the video signal is sent out only once while the tape is running
For the first time, the playback time DUR is set.   In step SP5 described above, the normal playback
When the operation is completed and a positive result is obtained, the control device 14 proceeds to the step.
Proceed to SP9 and record run log data on the recording medium
After that, the program proceeds to step SP13 to end the program.   With the above configuration, the commercial cart machine 20
Is before the break line as shown in FIGS. 4 (A) to (C).
3 events "AAA", "BBB", "CCC" will be re-issued in sequence
The operation for live transmission will be described. At this time, switch
22 based on the playback transmission list 19 of the event “AAA”
Start of message point SOM_AAt a certain time t0
Change to "H", and another cart machine 21 or TV
The logic level changes to t3 at the time of switching to the Yeon camera device 23.
Tally signal T returning to "L"_D(Fig. 4 (D))
Give to the cart machine 20.   The controller 14 of the cart machine 20 uses the event "AAA" event
The cassette 7 waits at the starting point (the queuing point)
While doing, a negative result is obtained at step SP2 and step S
At P3, the elapsed time DUR of playback transmission is reset to "0".
The tape running started, but the start of message point
SOM_ANot reach step SP2-SP4-SP5-S
The loop of P8-SP11-SP2 is operated repeatedly and playback is sent out.
The elapsed time of is not changed and remains "0".   Eventually the start of message point SOM_AWhen it comes to
Tally signal T at steps SP6 through SP2 through SP4
_DIs determined to be on or not. Start of message
J-point SOM_AAnd tally signal T_DSame as the on-trigger time t0 of
It is almost the same because it is based on the playback transmission list, but strictly
Is sent from switch 22 so that tally
Issue T_DOn-trigger point is slow, in this case step SP7
The next step SP5 without going through. Therefore, time t0
Becomes, tally signal T_DStep SP by on-trigger of
An affirmative result is obtained at 8, and the time t0 is buffered at step SP10.
It is stored in the memory 15.   Then during playback, step SP2-SP4-SP5-SP8-SP
11-SP2 loop is repeated, buffer memory 15 progress
The contents of the time DUR are not updated at all.   Eventually, at the time t1, the start of the next event "BBB" will start.
Bumetsu Sage Point SOM_BThen, in steps SP4 and SP5,
A positive result is obtained, and at that time also 1 is the tally signal T_DStrong
Off trigger and on trigger are formed in a controlled manner. This o
A positive result is obtained at step SP11 by the trigger point t1.
At step SP12, t0 is set as the elapsed time for playback transmission DUR.
The period from to t1 is stored in the buffer memory 15.   Tape cassette 7 of event "AAA" stops running
Then, through Step SP5, Step SP9
Elapsed playback DUR stored in the far memory 15
(T0 to t1) is recorded on the recording medium.   For event "BBB", compulsory turn-on at time t1
The trigger gives a positive result in step SP8,
In SP10, it is the point to start playback transmission to the buffer memory 15
t1 is stored. Eventually, the start of the event "CCC"
Objet message point SOM_CThen, at step SP7
The off-trigger point is forced to form at time t2, which
At time t2, a positive result is obtained at step SP11,
The period of t1 to t2 is stored as the playback transmission time of the "BBB"
Is done. When the tape running stops, this playback
The interval t1 to t2 is recorded on the recording medium at step SP9.
You.   For event "CCC", start as above
The point in time t2 is stored in step S10. This
, The off-trigger point is
It is not possible to forcibly form it with Tup SP7. Switch
Tally signal generated by switching operation of the ear 22
T_DAffirmative at step SP11 for the first time until the off-trigger point t3
The result is obtained.   As a result, the event "CCC" just before the break line
Also in step SP12, during actual playback transmission
Interval t2 to t3 is obtained and stored in the buffer memory 15.
After the tape stops running, it is recorded on the recording medium at step SP9.
Is done.   Next, this embodiment is applied to the news cart machine 21.
As shown in FIGS. 5 (A) and 5 (B),
Switch the video signal of the event "DDD" via channel B.
I will give it to Ya 22 and at the same time through the other channel C
The video signal of the input "EEE" is applied to switch 22 to switch
When the channel 22 switches between both video signals alternately
Will be described.   In this case, the tally signal T for the event "DDD"
_B(Fig. 5 (C)) shows the video signal of the event "DDD".
Of the first period t5 to t6 being sent and the second period t7 to t8
Rise to logic "H".   At the start point t5 of the first period t5 to t6, step SP8
A positive result is obtained, and at that time t5 is stored in the buffer memory 15.
Is stored. Eventually, at time t6, the tally signal T_BIs logical
When falling to "L", a positive result is obtained at step SP11, and the first
Period t_Five~ T₆At step SP12, the elapsed time DUR
It is stored in the far memory 15.   Before the tape running is stopped, the tape is tapped again at time t7.
Lee signal T_BRises, at step SP8, the time t
7 is stored in the buffer memory 15 as a starting point. Is
Tally signal T at time t8_BComes down, step
Pre-stored elapsed time DU
Time D obtained by adding the current playback transmission time t7 to t8 to R (t5 to t6)
The UR is stored in the buffer memory 15.   Then, when the tape run stops, this practical playback
The sum of the sending times, t5 to t6 and t7 to t8, is
It is recorded on the recording medium in SP9 and the time t
Incorrect playback transmission time such as 5 to t8 is recorded
There is no.   Similarly, for event "EEE", tally signal T
_CSum of times t6 to t7 and t8 to t9 based on (Fig. 5 (D))
The time is recorded on the recording medium.   Therefore, according to the above-described embodiment, immediately before the break line
Of events and images that are switched over and over while the tape is running.
Accurate playback transmission even for events where image signals are selected
The exit time can be recorded on the recording medium as run log data.
Can be. Thus, broadcasting charges based on run log data
Problems, liability issues for news program production, etc.
It can be effectively avoided.   FIG. 6 shows another embodiment of the present invention.
Shown below is the function applied to the automatic television signal transmission system.
Measuring the playback time of recording machine and processing the recording operation
Indicates the order.   The same parts as those in FIG. 2 are designated by the same reference numerals in FIG.
By the way, the cart machine 21 for news use has a tally signal T_Bas well as
T_CIs not acceptable,
-Challenge cart machine 20 has tally signal T_DAccept
Have a configuration. Moreover, the control device for each cart machine 20 and 21
The unit 14 is provided in common and the playback transmission time of both machines
The measurement and recording operations are performed.   In this case, the controller 14 controls the tally signal T_DCar that can be used
1 causes the machine 20 to execute the operation shown in FIG.
Tally signal T_B, T_CMachines that cannot be used
For 21 to execute the same operation as the conventional device,
Control using the tally flag that distinguishes cart machines.
You.   That is, the same steps as those in FIG.
In FIG. 6, which is shown in FIG.
Installed step SP20 to initialize the lag to "0".
Return to the above-mentioned step SP2 via this step SP20.
To do The tally signal is turned on at step SP8.
If it is determined that a trigger has occurred, turn on at step SP10.
After storing the Riga time, set the taled flag to "1"
As such, the step SP21 is provided. No tally signal
A positive result can be obtained at step SP8 on the automatic machine 21.
And not getting a positive result corresponds to that event
Cart machine that uses tally signal 20
It represents that.   Also, in FIG. 6, the end of the normal reproduction operation is
If it is determined, the process immediately proceeds to step SP9 for recording operation.
Instead, check whether the tareed flag is "1" or "0".
If the flag is "1", it is determined in step 22.
Proceed to step SP9, and the flag is set to "0" at step SP22.
In this case, the playback transmission time can be
Measure and store in buffer memory 15 at step SP9
Caught.   Therefore, in this embodiment, the tally signal is used.
In the cart machine 20, an accurate reproduction is performed in the same manner as in FIG.
Record the live delivery time and use tally signals
The cart machine 21 measures in the same way as conventional equipment.
The recorded playback transmission time is recorded.   According to this embodiment, the car connected to switch 22
The machine specifications are flexible, and
The dynamic delivery system should be constructed to be highly flexible.
Can be. Effect of H invention   As described above, according to the present invention, each reproduction channel is
The playback video signal from the playback channel for broadcasting.
The logic level changes only during the period selected as the image signal.
Each playback video signal, subject to the sending period display signal to be transferred
Of the actual transmission time when the video was transmitted as a broadcast video signal
It can be measured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart showing the procedure of measuring the reproduction signal transmission time and recording operation in one embodiment of the present invention, and FIG. 2 is the automatic transmission of a television signal to which the cart machine of FIG. 1 is applied. A block diagram showing the system, FIG. 3 is a block diagram showing a cart machine having two channels as an output channel, and FIGS. 4 and 5 are schematic diagrams for explaining the operation of the cart machine shown in FIG. 1, and FIG. FIG. 7 is a flow chart showing the procedure of measuring the reproduction / transmission time and recording operation in another embodiment of the present invention. FIG. 7 is a block diagram showing an automatic television signal transmission system to which the cart machine of FIG. 6 is applied. Is a layout drawing showing the configuration of the cart machine including a part of the block, FIG. 9 is a perspective view showing a tape cassette, FIG. 10 is a table showing a reproduction / sending list, and FIGS. It is an approximate line figure offered for explanation of a fault of a conventional device. 1 ...... shelving system, 1 ₁ to 1 ₄₀ ...... shelves, 2 ...... elevator, 3
…… Guide, 7 …… Tape cassette, 8, 8 ₁ to 8 ₄ …… VT
R, 13 ... Input device, 14 ... Control device, 15 ... Buffer memory, 16 ... Display device, 18 ... External memory device, 19 ...
… Playback list, 20, 21… Cart machine, 22… Switcher, AD… Channel, T _A– T _D … Tally signal.

Claims (1)

(57) [Claims] A cassette auto-chainer for selectively reproducing a plurality of types of tape cassettes in which a desired video signal is recorded, and a reproduction video signal reproduced by the cassette auto-chainer are input through a plurality of channels, In a video signal transmitting device having a switch for selecting a predetermined channel from among the channels and transmitting the input reproduced video signal as a broadcast video signal, when the predetermined channel provided in the switch is selected. ,, to the cassette auto-engineer using the selected predetermined channel, the period during which the broadcast video signal is being transmitted by the transition of the logic level during the period during which the broadcast video signal is being transmitted from the switcher, A transmission period display signal generating means for generating a transmission period display signal that represents The first time data representing the transition time point is provided on the condition that the logic level of the transmission period display signal is changed when the reproduction video signal reaches the reproduction transmission start point, which is provided in the automatic engineer. When the logical level of the transmission period display signal is restored, the second time data representing the restoration time point is obtained to obtain the difference data between the first and second time data, and the sum of the difference data is calculated as above. A video signal transmitting device comprising: a measuring unit for measuring the actual transmission time of the reproduced video signal.