JPH05151645A - Automatic cassette changer - Google Patents

Abstract

PURPOSE:To surely and smoothly put on the air a video capable of replacing the video of news, etc., just before broadcasting by hardly deviating a program- searching position even when a cassette tape set on a VTR device and subjected to program-searching is taken out temporarily and set again on the VTR device. CONSTITUTION:When the cassette tape 10 is taken out temporarily and set again after first queue-up processing is performed to the cassette tape 10 set on the VTR 13, the tape 10 is rewound by a prescribed amount and the queue-up processing is performed again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette autochanger for sequentially taking out and reproducing unit video signals recorded in each tape cassette.

[0002]

2. Description of the Related Art In a broadcasting station or the like, a cassette auto changer is used to sequentially select each cassette tape and reproduce it to display a unit video signal such as news recorded on each cassette tape. Often on air.

FIG. 5 is a block diagram showing an example of such a cassette autochanger (see Japanese Patent Laid-Open No. 14457/1990).

The cassette autochanger shown in this drawing has a plurality of cassette storage containers 101 and a cassette shelf block 103 having a storage detector 102 provided for each cassette storage container 101, and a drive signal when this drive signal is supplied. A drive device 104 that generates an elevator drive signal based on the signal, a slide shaft 105 arranged along the cassette shelf block 103, and a motor 106 that operates based on the elevator drive signal output from the drive device 104, It is driven by the motor 106 and slides along the slide shaft 105 to move the cassette tape 10 from the cassette storage container 101.
7 is taken out and set in a VTR device (not shown), or returned to the original cassette storage container 101, an elevator main body 108, a bar attached to a cassette tape 107 placed on the elevator main body 108. An elevator section 110 having a bar code sensor 109 for reading a code, a keyboard having various keys (not shown), a console 111 having a CRT for displaying various information (not shown), and this operation A system controller 112 is provided which controls the drive unit 104 and the VTR unit based on various commands output from the desk 111 and the outputs of the storage detectors 102.

After the cassette tape 107 has been set in any of the cassette storage containers 101 constituting the cassette shelf block 103, when a list creation command is input from the console 111, the elevator main body of the elevator section 110. This elevator body 1 is driven by 108.
Each cassette tape 107 set in each cassette storage container 101 by 08 is sequentially taken out and the contents are checked, and then the original cassette storage container 101
And the event list is created based on the contents of the check.

Thereafter, when a reproduction command is input from the console 111, the elevator main body 108 of the elevator section 110 is driven based on the event list to drive each cassette tape 107 set in each cassette storage container 101. Are sequentially taken out, set in the VTR device, reproduced in the order based on the event list, and on-air.

[0007]

However, in the conventional cassette autochanger described above, when the cassette tape 107 is taken out from each cassette storage container 101 and set in the VTR device,
The cassette tape 107 is reproduced by the apparatus, and FIG.
When the tape 113 is read out as shown in FIG.
As shown in (b), when the first top cue signal (first top cue signal) is detected, the tape 1
The traveling of No. 13 is stopped, and as shown in FIG.
The tape 113 is stopped at the position where the head position where the first video signal corresponding to the top cue signal is recorded is in contact with the magnetic head (not shown).

Therefore, when the respective cassette tapes 107 set in the respective VTR devices are sequentially reproduced, the respective video cassette tapes 107 are not interrupted.
Although there is an advantage that the image recorded on the VTR device can be reproduced, when any one of the cassette tapes 107 set in each VTR device is once taken out and set again in the original VTR device, The cueing operation of the tape 113 is performed again and the tape 1 is moved from the position where the first cueing operation is performed as shown in FIGS.
When the first top cue signal (second top cue signal) is detected by running 13 and the tape 113 is stopped after a predetermined time, the second top cue signal is changed to the second top cue signal as shown in FIG. 7C. There is a problem that the tape 113 is stopped at the position where the corresponding head position where the second video signal is recorded contacts the magnetic head.

In view of the above circumstances, the present invention prevents the cueing position from shifting even if the cassette tape set in the VTR device and cueed is once taken out and set again in the VTR device. Therefore, it is an object of the present invention to provide a cassette auto changer that can reliably and smoothly perform on-air video that is replaced immediately before broadcasting such as news.

[0010]

In order to achieve the above object, a cassette autochanger according to the present invention comprises:
Multiple cassette storage containers for storing cassette tapes,
A VTR device that reproduces a video signal and a cue signal from a magnetic tape in each cassette tape, a transporter that selectively loads each cassette tape stored in each cassette storage container into the VTR device, and this transporter In the cassette autochanger having a controller for controlling the VTR device, the controller is configured to unload the cassette loaded in the VTR device once,
A detection unit for detecting that the magnetic tape has been loaded in the TR device, and based on the detection result of the detection unit, when the cassette is loaded in the VTR device again, after rewinding the magnetic tape by a predetermined amount, The magnetic tape is moved in the reproduction direction, the cue signal is detected, and the magnetic tape is stopped after a predetermined time.

[0011]

In the above structure, after the cassette loaded in the VTR device is once unloaded,
When the cassette is again loaded on the VTR device, the magnetic tape is detected by the detection unit. When the cassette is loaded again on the VTR device, the magnetic tape is detected by the indexing unit based on the detection result of the detection unit. After being rewound by a predetermined amount, the magnetic tape is transported in the reproducing direction, the cue signal is detected, and the magnetic tape is stopped after a predetermined time.

[0012]

1 is a block diagram showing an embodiment of a cassette autochanger according to the present invention. The cassette autochanger shown in this figure includes a cassette shelf block unit 2, a drive unit 3, an elevator unit 4, a VTR unit 5, a selection unit 6, an operation console 7, and a system controller 8. After a cassette tape 10 is set in any of the cassette storage containers 9 that form the block unit 2, when a list creation command is input from the operator console 7, the elevator tape 4 is set in each cassette storage container 9. The cassette tapes 10 are sequentially taken out and their contents are checked, then returned to the original cassette container 9, and an event list is created based on the contents of the check. After that, when a reproduction command is input, the cassette tapes 10 set in the respective cassette storage containers 9 are sequentially taken out and set in the VTR section 5 based on the event list, and sequentially reproduced and on-aired. .. At this time, the cassette tape 10 set in the VTR device 13 and cueed once,
When the cassette tape 10 is taken out and set again, the cassette tape 10 is once rewound, and again cueed, and then reproduced and aired.

The cassette shelf block 2 is provided with a casing 11 formed in a rectangular shape, a plurality of cassette storage containers 9 attached to the casing 11, and a cassette storage container 9 provided for each cassette storage container 9. When a cassette tape 10 is set in the cassette storage container 9, a plurality of storage detectors 12 for detecting the cassette tape 10 are provided, and when the cassette tape 10 is set in each cassette storage container 9, the cassette storage container This is detected by the storage detector 12 attached to 9 and the detection result is supplied to the system controller 8.

The drive unit 3 also generates an elevator drive signal based on the control signal from the system controller 8 and supplies it to the elevator unit 4.

The elevator section 4 has a slide shaft 14 arranged along the longitudinal direction of the cassette shelf block section 2,
An elevator main body 15 slidably inserted into the slide shaft 14, and provided in the elevator main body 15,
A motor 16 that operates based on an elevator drive signal output from the drive device 3 to slide the elevator body 15, and the motor body 16 is provided in the elevator body 15.
Each cassette storage container 9 is provided by the elevator main body 15.
When a cassette tape 10 is taken out from the cassette tape 10, a bar code sensor 17 for reading a bar code attached to the cassette tape 10 is provided, and a motor 16 is provided based on an elevator drive signal output from the drive device 3.
Is operated to slide the elevator main body 15 along the slide shaft 14, and the elevator main body 15 is stopped at a designated position, and an actuator (not shown) is used to stop the cassette storage container 9
The cassette tape 10 from the cassette tape 10, the bar code sensor 17 reads the bar code of the cassette tape 10, and the bar code information obtained by the reading operation is supplied to the system controller 8.
Cassette tape 1 for which barcode information has been read
0 is returned to the original cassette storage container 9, or the cassette tape 10 taken out from the cassette storage container 9 is transferred to the VTR section 5
Or set it on the VTR device 13 of FIG.

The operation console 7 is a keyboard having various keys (not shown) and a CR for displaying various information.
T is provided (not shown), and when the display information is output from the system controller 8, the display information is output as C
When it is displayed on the RT and the keyboard is operated, a command signal, data and the like corresponding to the operation contents are generated and supplied to the system controller 8.

Further, the VTR unit 5 includes a plurality of VTR devices 13
When the cassette tape 10 is delivered from the elevator section 4 and is taken in and set, and when a cue-up command is output from the system controller 8, the cue of the set cassette tape 10 is provided. When the reproduction command is output after this, the cassette tape 10 that has been set is reproduced and the video signal obtained by this reproduction operation is supplied to the selection device 6. When the rewinding command is output from the system controller 8, the set cassette tape 10 is rewound by a predetermined amount.

The selecting device 6 selects a video signal output from each VTR device 13 based on a selection command from the system controller 8 and supplies it to the system controller 8 as a monitor output. The video signal that was made is aired.

The system controller 8 also includes a microprocessor (not shown) for performing various processes, a ROM (not shown) for storing programs for defining the operation of the microprocessor and various constant data. A RAM (not shown) used as a work area of the microprocessor and the like, and a memory 18 in which an event list created by the microprocessor is stored.

Then, the cassette storage position data is created based on the detection results output from the cassette shelf block section 2 by operating according to various commands output from the console 7, and the cassette storage position A control signal is generated based on the data and is supplied to the drive device 3, and the reproduction order and the like are indicated based on the bar code information output from the bar code sensor 17 of the elevator section 2 and the cassette storage position data. An event list may be created and stored in the memory 18, or the elevator unit 4 may be controlled to take out the cassette tape 10 from each cassette storage container 9 and set in any of the VTR devices 13. The cassette tapes 10 set in the respective VTR devices 13 are queued up, and the VT When the cassette tape 10 set in each VTR device 13 of the unit 5 is once taken out and then set again, it is rewound by a predetermined amount, then cueed up again, The cassette tape 10 set in the device 13 is reproduced, or the selector device 6 is controlled to control each VTR device 13
You can select the video signal output from the device and turn it on air.

Next, the event list creating operation and the reproducing operation of this embodiment will be described in order with reference to FIG.

<Event List Creation Operation> First, after setting the cassette tapes 10 from the upper side of each cassette storage container 10 in the reproduction order, the console 7 is operated to input a list creation command. Storage detector 12 attached to each cassette storage container 9
The detection result output from the device is fetched and the cassette storage position data is created.

Thereafter, the system controller 8 generates a control signal based on the cassette storage position data and supplies the control signal to the drive unit 3. Based on the elevator drive signal output from the drive unit 3, the elevator main body 15 is controlled. Of the cassette storage containers 9 in which the cassette tape 10 is driven and set, the cassette tape 10 is taken out from the uppermost cassette storage container 9 and the cassette tape is read by the bar code sensor 17 provided in the elevator section 4. The barcode attached to 10 is read and the information of the cassette tape 10 is recorded at the top of the event list.

When this read operation is completed,
The system controller 8 controls the elevator section 4 to return the cassette tape 10 placed on the elevator body 15 to the original cassette storage container 9.

Hereinafter, the cassette storage container 9 which is the upper side
Of the above, the above-described operation is sequentially repeated for the cassette storage container 9 in which the cassette tape 10 is stored, and the information of the cassette tape 10 obtained by the read operation is sequentially recorded in the event list in a write-once format. ..

<Reproduction Operation> When the event list creating operation is completed, the system controller 8 generates a control signal based on the event list, supplies the control signal to the drive device 3, and outputs the control signal. Of the cassette storage containers 9 in which the elevator main body 4 is driven based on the elevator drive signal and the cassette tape 10 is set, the cassette tape 10 is taken out from the cassette storage container 9 at the highest position in the event list. Of the VTR devices 13, it is set to the highest VTR device 13.

Thereafter, this operation is repeated, and among the cassette storage containers 9 recorded in the event list, the cassette tape 10 is sequentially taken out from the cassette storage container 9 which is the upper side, and the cassette tapes 10 are transferred to the remaining VTR devices 13. Is set.

In parallel with this operation, as shown in the flow chart of FIG.
The TR device 13 is controlled so that each of these VTR devices 13 is controlled.
It is checked whether or not the first cue-up has been completed for each cassette tape 10 set in step S1 (step ST1), and the first cue-up process is performed and the tape 19 as shown in FIG. Is read and the first top cue signal (first top cue signal) is detected as shown in FIG. 3 (b), the tape 19 stops running after a predetermined time, and as shown in FIG. 3 (c). The tape stops at the position where the head position where the first video signal corresponding to the first top cue signal is recorded contacts the magnetic head (step ST2).

Thereafter, it is checked whether or not each cassette tape 10 set in each VTR device 13 is once taken out and whether or not a reproduction instruction is inputted from the operator console 7 (steps ST3 and ST5).

Then, if the cassette tape 10 once set in each VTR device 13 is taken out and is returned to the original VTR device 13 before the reproduction command of the cassette tape 10 is output, The system controller 8 again determines that the cassette tape 10 is the set cassette tape (step ST
3), VT with this cassette tape 10 set
When the rewinding command is output to the R device 13, as shown in FIG.
As shown in FIG. 4B, the cassette tape 10 is once rewound by a predetermined amount, and as shown in FIG. 4C, the magnetic head is returned to the front side of the portion where the first top cue signal is recorded. Then, the rewinding of the cassette tape 10 is completed (step ST4).

After that, the cue-up process is performed, and FIG.
The tape 19 is read out as shown in FIG.
When the first top cue signal (first top cue signal) is detected, the tape 19 is stopped from running after a predetermined time and corresponds to the first top cue signal as shown in FIG. 3 (c). The tape 19 stops at the position where the head position where the first video signal is recorded contacts the magnetic head (step ST2).

When the console 7 is operated and a reproduction command is input (step ST5), the system controller 8 starts the reproducing operation sequentially from the VTR device 13 which is the higher order side among the VTR devices 13. The video signal obtained by the reproduction operation of the VTR device 13 is selected by controlling the selector device 6, which is taken in as a monitor output and displayed on the console 7, and the video signal is on-air ( Step ST6).

As described above, in this embodiment, the VTR
After the first cue-up process is performed on the cassette tape 10 set in the device 13, when the cassette tape 10 is once taken out and set again, the cassette tape 10 is rewound by a predetermined amount and the cue-up is performed again. Since the processing is performed, even if the cassette tape 10 set in the VTR device 13 and cueed is once taken out and set again in the VTR device 13, the cueed position does not shift. As a result, it is possible to reliably and smoothly carry on-air images such as news that are replaced immediately before broadcasting.

[0034]

As described above, according to the present invention, V
Even if the cassette tape set in the TR device and cueed is once taken out and set again in the VTR device, the cueed position can be prevented from shifting.
As a result, it is possible to reliably and smoothly carry on-air images such as news that are replaced immediately before broadcasting.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a cassette auto changer according to the present invention.

FIG. 2 is a flowchart showing an example of a reproducing operation of the cassette auto changer shown in FIG.

FIG. 3 is a schematic view showing an operation example of the cassette auto changer shown in FIG.

FIG. 4 is a schematic view showing an operation example of the cassette auto changer shown in FIG.

FIG. 5 is a configuration diagram showing an example of a conventionally known cassette automatic changer.

FIG. 6 is a schematic diagram showing an operation example of the cassette auto changer shown in FIG.

FIG. 7 is a schematic diagram showing an operation example of the cassette auto changer shown in FIG.

[Explanation of symbols]

4 Elevator part (conveyor) 8 System controller (control device, detection part, cueing part) 9 Cassette storage container 10 Cassette tape 13 VTR device 19 Magnetic tape

Claims (1)

[Claims] 1. A plurality of cassette storage containers each for storing a cassette tape, a VTR device for reproducing a video signal and a cue signal from a magnetic tape in each cassette tape, and each of the cassette storage containers. A carrier for selectively loading a cassette tape into the VTR device,
In a cassette autochanger including a control device for controlling the carrier, the control device is configured such that the cassette loaded in the VTR device is once unloaded, and then the VTR device is again loaded.
A detection unit that detects that the cassette has been loaded into the device, and based on the detection result of this detection unit, the cassette is
When loaded in the VTR device, after rewinding the magnetic tape by a predetermined amount, the magnetic tape is moved in the reproducing direction to detect the cue signal, and the magnetic tape is stopped after a predetermined time. And a cassette auto changer, which is characterized in that