JP3211418B2 - Video transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video transmitting apparatus using a cart machine, and more particularly, to a video transmitting apparatus which freezes and outputs a title credit of a tape at the time of cueing of the tape so that the contents can be confirmed on a monitor. .

[0002]

2. Description of the Related Art In a broadcasting station that provides television images, an image transmission device that reproduces a program or commercial image signal recorded on a cassette tape in accordance with a broadcast schedule is used. The video transmission device is schematically configured by a VTR for reproducing a video signal recorded on a cassette tape, and a cart machine for selectively supplying a cassette tape on which a predetermined video signal is recorded according to a broadcast schedule to the VTR. I have.

[0003] The commercial broadcaster has established a standard called "D-2 cassette tape program exchange standard", and has specified a tape format of a cassette tape used in the video transmission device. FIG. 3 shows a tape format according to this standard. As shown in FIG. 3, in this tape format, a main video is recorded in an area after 00: 00: 00: 00 which is a time code of the start of the main program on the tape 1, and 3 seconds from the time code of the start of the main program. Previous (23: 5
9:57:00), the first cut of the main video is recorded in the area from 3 to 15 seconds before the time code of the start of the main video (23: 59: 45: 00). It is configured to record title credits.

[0004] Tape 1 of such a tape format
Is usually operated three seconds before the start of the main program when operating the VTR in a broadcasting station.
In order to avoid the start delay, the position where the tape 1 cut into the first cut 3 seconds before the start of the main program (S
Cueing is performed at (-2 seconds and 15 frames of OM).

[0005]

However, since the title credit cannot be reproduced in a state where the tape has been caught at the position where the tape cut into the first cut three seconds before the start of the main part, the title credit cannot be reproduced. However, there was a problem that the title credits of the cueed tape could not be viewed, and it was not possible to confirm whether or not the contents of the prepared tape were incorrect.

In order to solve the above-mentioned problem,
A method in which a frame memory or the like is provided outside and the title credit image is frozen in the frame memory is conceivable. However, this method requires the same number of frame memories as the number of VTRs mounted on the cart machine, and has a problem that the device configuration is complicated and the cost is high. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and has as its object to provide a video sending device capable of easily confirming a cue of a tape and recorded contents of the tape.

[0007]

In order to achieve the above object, the present invention provides a recording area in which a main video signal is recorded, a cueing area located in front of the recording area and including a cueing position. A VTR for reproducing each of the video signals from a magnetic tape having a credit area in which a video signal indicating the recorded content of the main video signal is located before the cue area;
A monitor for monitoring a video signal reproduced by the VTR; a frame memory provided in the VTR; and a drive controller for controlling the VTR. Control means for reproducing a video signal and storing the video signal in the frame memory, and when the magnetic tape is transferred to the cueing position, reading the video signal of the frame memory and displaying the video signal on the monitor. I do.

Further, according to the present invention, the control means sets the VTR to a reproduction mode for reproducing the magnetic tape transferred to the cue position when a broadcast start time of the main video signal has been reached, The supply of the video signal from the frame memory to the monitor is stopped. Further, in the present invention, the main video signal is a commercial video. In addition, according to the present invention, the main video signal is a program video.

[0009]

According to the present invention, the control means sets the VTR to the playback state before playing the original cue, reproduces the video signal in the credit area, stores it in the frame memory, and moves the tape to the cue position. Since the video signal of the frame memory is sometimes read and displayed on the monitor, even if the tape is caught at the position where the cue is cut into the cue area, the recorded contents of the tape can be confirmed at the time of cueing. Further, according to the present invention, the freeze is released together with the playback control of the VTR accompanying the start of broadcasting, and the display on the monitor is switched from the credit video to the playback video on the tape, so that the reliability of video transmission can be improved.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an embodiment of a video transmission device according to the present invention. In FIG. 1, a video transmission device includes a plurality of VTRs 10-1, 10-2,.
-N, video switcher 11, cart controller 1
2, a VTR controller 13 and an application controller 14, and VTRs 10-1 to 10-N;
The video switcher 11, the cart controller 12, and the VTR controller 13 are mounted on a cart machine (not shown) (auto changer device).

The control terminals of VTRs 10-1 to 10-N are V
The VTR 10 is connected to the TR controller 13 and controls the VTRs 10-1 to 10-N according to the flowchart shown in FIG. Each VTR 10
The video signal output terminals of -1 to 10-N are connected to the video switcher 11. The cart controller 12 controls switching of the video switcher 11 to the VTRs 10-1 to 10-N and controls operations of a cassette transporter (not shown).

The application controller 14
Is based on a preset video transmission program (comprising a list indicating the video transmission time and the video transmission order of each commercial or program) and the cart controller 12 and the VTR.
It manages and controls the controller 13. That is, the cart controller 12 and the VT
By controlling the R controller 13, when a desired commercial or a desired program comes at a preset time, the corresponding VTR is started and the video switcher 1 is started.
1 and the monitor 15 connected to the video switcher 11 can simultaneously check the on-air screen. Also, VTRs 10-1 to 10
-N is a frame memory 16-1 to 1 for storing a video signal.
6-N.

Next, the operation of the embodiment constructed as described above will be described with reference to the flowchart of FIG. First, when the VTR controller 13 starts operating according to a program from the application controller 14,
In step S1, before performing the original cueing control,
The title credit portion (23: 5) of the tape shown in FIG.
At around 9:55:00).

In the next step S2, the cue-controlled VTR is brought into a reproducing state. Then, in the next step S3, the video signal recorded in the credit portion is taken into a frame memory in the VTR (freeze). In the next step S4, the video signal is read from the frame memory of the VTR, output to the monitor 15 via the video switcher 11, and the credit image is displayed on the monitor 15.

In the next step S5, while the credit image read from the frame memory is being displayed on the monitor 15, the tape is positioned at the original cue position (23: 5 in FIG. 3).
The VTR is controlled so that it is transferred at around 9:50:00). As a result, the head is moved to the original cue position (around 23: 59: 55: 00 in FIG. 3) without releasing the freeze,
Preparation for broadcasting is completed.

In the next step S6, it is determined whether or not a preset broadcast start time has come, and the process stands by until the broadcast start time. If it is determined that the broadcast start time has come, the process proceeds to step S7, in which the VTR is brought into the reproduction state after the freeze is released in which the operation of reading the video signal from the frame memory and supplying it to the monitor 15 is performed. As a result, the title credit freeze image is switched to the tape reproduction image, and the main video is transmitted.

In the present embodiment as described above, at the time of cueing of the tape, the title credit portion recorded as a video signal on the tape is reproduced and stored in the frame memory of the VTR. Since the information is output and displayed on the monitor, the cue of the tape and the recorded content of the prepared tape can be confirmed. In addition, since the freeze of the frame memory is automatically and reliably released at the start of the broadcast, the transmission of the main video is not hindered, and the reliability of the video transmission can be improved.

[0018]

As described above, according to the present invention, a recording area in which a main video signal is recorded, a cueing area located in front of the recording area and including a cueing position, A VTR for reproducing each of the video signals from a magnetic tape having a credit area in which a video signal indicating the recorded content of the main video signal is recorded, and
A monitor for monitoring the video signal reproduced by the above, a frame memory provided in the VTR, a drive control of the VTR, and a reproduction of a video signal from a credit area on the magnetic tape when the magnetic tape is caught. Control means for reading the video signal from the frame memory when the magnetic tape is transferred to the cueing position and displaying the read signal on the monitor. The credit video can be automatically displayed on the monitor at the time of cueing, and the cue of the tape and the recorded content of the tape can be easily confirmed. Further, according to the present invention, the control means sets the VTR to a reproduction mode for reproducing the magnetic tape transferred to the cue position when the broadcast start time of the main video signal has been reached, Since the supply of the video signal from the frame memory to the monitor is stopped, the freeze is reliably released at the start of the broadcast, and the reliability of the video transmission can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a video transmission device according to the present invention.

FIG. 2 is a flowchart illustrating an operation procedure of the VTR according to the embodiment.

FIG. 3 is an explanatory diagram showing a tape format defined by a program exchange standard using a D-2 cassette tape.

[Explanation of symbols]

 10-1 to 10-N VTR 11 Video Switcher 12 Cart Controller 13 VTR Controller 14 Application Controller 15 Monitor 16-1 to 16-N Frame Memory

Claims (4)

(57) [Claims] A recording area in which a main video signal is recorded;
From a magnetic tape having a cueing area located in front of the recording area and including a cueing position, and a credit area in which a video signal indicating the recorded content of the main video signal is located in front of the cueing area. VT for reproducing each video signal
R, a monitor for monitoring a video signal reproduced by the VTR, a frame memory provided in the VTR, a drive area for the VTR, and a credit area on the magnetic tape at the time of cueing of the magnetic tape. Control means for reproducing the video signal from and storing the video signal in the frame memory, reading the video signal from the frame memory when the magnetic tape is moved to the cue position, and displaying the video signal on the monitor. Characteristic video transmission device. 2. The control means sets the VTR to a reproduction mode for reproducing the magnetic tape transferred to the cue position when the broadcast start time of the main video signal arrives, and 2. The video transmitting apparatus according to claim 1, wherein the video signal stops being supplied to the monitor. 3. The video transmitting apparatus according to claim 1, wherein the main video signal is a commercial video. 4. The video transmitting apparatus according to claim 1, wherein the main video signal is a program video.