JPH09121298A - Broadcasting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply the video of a TV camera, which is not selected as a camera for main line output, as a video for replay. SOLUTION: Endless recorders 1a to 5a are provided where videos photographed by TV cameras 1 to 5 from a prescribed time in the past to the present are recorded. If the TV camera which is not selected as a camera for main line output photographs 'the golden scene', request of replay is generated from this TV camera side, and videos for replay recorded in the endless recorder are temporarily recorded in a VTR 10 for relay and are outputted as videos for main line from this VTR 10 at a prescribed timing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting system, and more particularly to a technique for effectively utilizing an image taken by each camera.

[0002]

2. Description of the Related Art In a conventional broadcasting system for live broadcasting, TV cameras 32 to 36 are arranged around a subject 31 as shown in FIG. 3, and images from these TV cameras 32 to 36 are controlled by a camera. The image is input to the video changeover switch (VSW) 38 while being controlled by the unit (CCU) 37. Then, an appropriate image is selected from the images input from the plurality of TV cameras, and the selected image is converted to the V
High-performance video recording device (V
(TR) 39, and is output as a video (main line video) to be recorded or broadcast.

Usually, this video switching operation is performed according to a predetermined script or the like, and the same scene is reproduced in a plurality of T's.
The V camera shoots from different directions, and a more appropriate scene is selectively output to the main line. In addition, a high-performance VTR that records video from a TV camera is a standard TV
About 2 cameras are used for 5 to 7 cameras, one VT
R39 records the video that is actually broadcast, while the other VTR40
Is used to temporarily record an image from a TV camera that has not been selected for main line recording and later reproduce (replay) it as a main line image.

[0004]

In such a broadcasting system, even if the TV camera not selected for the main line is shooting a "perfect scene", the VSW38
Does not always connect the image of the TV camera to the replay VTR 40, and because the replay VTR 40 does not always record, the image of this TV camera is often not recorded, I couldn't reliably replay the footage I shot.

Therefore, VTRs for all TV cameras
By arranging one by one, the video from each TV camera can always be recorded and played back when necessary,
It is possible to prevent missed "great scenes" as much as possible. However, since this VTR is very expensive, if the VTRs are installed for the number of TV cameras, the cost of the entire system will be high.

[0006] In addition, when performing a sports broadcast such as a baseball broadcast, it is sufficient that the replay requires a few minutes at most. Providing a large number of expensive VTRs for these few minutes is not a cost effective measure. On the other hand, when shooting using a relatively inexpensive small cassette type VTR, the recording time is extremely short compared to the main line VTR, and the work of frequently replacing or rewinding the recording medium such as a video cassette. Need to do. For this reason, it is not only difficult and troublesome for the photographer to perform this work during shooting, but there is also a possibility that a "great scene" has passed during this work, and shooting may not be possible.

In view of the above-mentioned conventional problems, the present invention adopts a structure in which each TV camera can record an image individually while suppressing the cost as much as possible, so that the TV camera not selected for the main line shoots. It is an object of the present invention to provide a broadcasting system capable of supplying such a video to the video for the main line.

[0008]

In order to achieve the above object, the invention according to claim 1 selects an image by a specific TV camera from images taken by a plurality of TV cameras, and selects the selected TV. In a broadcasting system that outputs the video from a camera as a video for broadcasting, while temporarily recording the video from a TV camera that has not been selected, and then inserts the video into a video for broadcasting as needed, a plurality of TVs that shoot a subject A camera, an endless recording device capable of recording an image taken by the TV camera between the present and a predetermined time past, and reproducing the recorded image, and an image for selectively switching the images from the plurality of TV cameras Replay request notification for notifying the switching means and the replay request to the video switching means when replay is requested from the TV camera side. And a replay video recording device for recording a video for replay, and when a replay request is made from the TV camera side, the video recorded in the endless recording device on the camera side for which the replay is requested is displayed. If necessary, the replay video recording device records the data and reproduces it as a video for broadcasting at a predetermined timing.

As a result, the image taken by each TV camera is recorded for a predetermined time in the endless recording device, so that the image can be recorded even on the TV camera not selected for the main line, and the recorded image is recorded. While it can be supplied as a main line image by playing back the recorded image, the endless recording method allows the recording / playback to be controlled by a simple operation without operating a recording medium such as a cassette. Therefore, it is possible to build a broadcasting system that can prevent the "great scene" from being missed as much as possible while suppressing the cost as much as possible.

According to a second aspect of the present invention, the replay request notifying means notifies when the replay is requested by the TV camera side by lighting a lamp provided on the video switching means side. This makes it possible to notify the replay request from the TV camera side with good visibility and more reliably with a simple configuration, and to allow closer cooperation between the TV camera side and the image switching means side.

According to a third aspect of the present invention, the broadcasting system includes a replay recording device, and the replay image recorded in the endless recording device is recorded in the replay recording device. By reproducing the video recorded in the replay recording device, the video is output as a broadcast video. As a result, the endless recording device can be opened when the replay image is completely recorded on the replay recording device, so that the recording by the endless recording device can be restarted promptly and the replay image is output. Since the waiting time when performing is shortened, it is possible to perform smoother shooting.

According to a fourth aspect of the present invention, the endless recording device is incorporated in a TV camera body. As a result, the operation of the endless recording apparatus is facilitated, the increase in the number of imaging equipment is suppressed, and the system can be prevented from becoming complicated. According to a fifth aspect of the present invention, the endless recording device is separated from the TV camera body, and is interposed between the TV camera and the image switching means.

As a result, a highly mobile TV camera can be used without hindering the miniaturization and weight reduction of the TV camera body, and the degree of freedom in photographing can be improved.
According to a sixth aspect of the present invention, in the endless recording device,
The video information was randomly accessed and recorded / played back by the hard disk. As a result, it is possible to record video for a longer time with an inexpensive configuration, and by randomly accessing and recording video information,
It is possible to instantly record or reproduce the desired video.

According to a seventh aspect of the present invention, the endless recording device records / reproduces video information by a memory. As a result, the sliding portion of the endless recording apparatus can be almost eliminated, the durability of the apparatus can be improved, and the video information can be recorded or reproduced by random access to record or reproduce the information immediately. The video can be played.

According to an eighth aspect of the invention, in the case where the endless recording device is recording a video image captured by a TV camera, a video for replay is secured at the same time when the recording of the video image is stopped. Added a request for replay. This simplifies the operation of the photographer, can promptly notify the replay request, and can more promptly determine whether or not to output the replay video to the main line.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG. FIG. 1 shows the system configuration of the broadcasting system in this embodiment. On the photographing side of the present embodiment, for example, five TV cameras 1 to 5 for photographing a subject and the TV cameras are mounted respectively on the main bodies of the TV cameras, and photographed, for example, from the present to the past 10 minutes or 20 minutes. It is composed of endless recording devices 1a, 2a, 3a, 4a, 5a capable of recording images and reproducing the recorded images. As the video recording medium of the endless recording devices 1a, 2a, 3a, 4a, 5a, it is possible to randomly access video information and immediately record or reproduce the desired video, for example, an inexpensive hard disk with a large recording capacity or sliding. A memory or the like that has no parts and has excellent durability is desirable.

Further, the recording / output side of the video is the TV
A camera control unit (CCU) 6 capable of performing various effects on images captured by the cameras 1 to 5 and recording the images, and capable of remotely operating the endless recording device on each TV camera side, The CC
Video selector switch (VS) that selects the target video from the video output from U6 and switches the output video
W) 7, a replay request notification means 8 for notifying the VSW 7 of a replay request generated from each camera side, for example, by turning on a notification lamp, and an image actually connected to the VSW 7 and broadcast (main line image). Video recording device VTR9 for recording main line, and video recording device VT for replay which is also connected to VSW7 and records video for replay
It is composed of R10 and.

The TV camera body is provided with a play switch, a stop switch, and a start switch, and operations such as video recording and reproduction can be controlled by the switches. The location of these switches is not limited to the TV camera body, and may be any location where the photographer of the TV camera can operate. Next, the operation of this embodiment will be described below.

First, the photographer of each of the TV cameras 1 to 5 operates the endless recording devices 1a, 2a, 3a, 4a and 5a, respectively, so that the images photographed by the respective TV cameras are continuously recorded while photographing. . Here, for example, T
When the image from the V camera 2 is not used for the main line, the photographer of the camera 2 shoots a "great scene",
Suppose that it is better to supply to the main line. In this case, since the replay is requested first, as shown in FIG.
The stop switch 21 of the V camera 2 is set to "ON". Then, a recording stop signal for stopping recording by the endless recording device 2a on the TV camera 2 side is output, and the recording operation of the endless recording device 2a is stopped. As a result, the video accumulated in the endless recording device 2a during the past 10 minutes or 20 minutes after the stop switch 21 is set to "ON" is secured as a video for replay. Further, when the stop switch 21 is set to “ON” and at the same time the notification lamp 22 provided on the VSW 7 side is turned on, it is the VSW operator that the photographer of the TV camera 2 requests replay. The notification can be given to a certain switcher, and the switcher can be promptly urged to determine whether or not the replay from the TV camera 2 is possible.

Next, the switcher, which has been notified of the request for replay, judges whether or not the image recorded in the TV camera 2 should be replayed with respect to the main line. If it is determined to replay, it is confirmed that the replay VTR 10 is not used, and the photographer of the TV camera 2 is instructed to send the video for replay from the endless recording device 2a on the TV camera side to the CCU 6 side.

Upon receiving the instruction, the photographer of the TV camera 2 sets the play switch to "ON" to reproduce the replay image recorded in the endless recording device 2a. The video is sent to VSW7 via CCU6,
It is recorded on the replay VTR 10 as a video for replay. When the switcher determines whether or not to replay the image captured by the TV camera 2 that has requested replay, the image recorded in the endless recording device 2a of the TV camera 2 is remotely controlled using the CCU 6. It is also possible to confirm the recorded image verbally by using a voice line or a spare line (not shown) which is separately provided.

Then, the photographer of the TV camera 2 detects that the replay image from the endless recording device 2a is the VT for replay.
When the recording is completed on R10, the start switch is set to "ON" to start the endless recording again. Here, if the replay VTR 10 is in use when the replay video recorded in the endless recording device 2a on the TV camera side is recorded in the replay VTR 10 via the VSW 7, the replay VTR 10 The video may be recorded from the time when the use is finished.

Further, when the replay requests are simultaneously issued from the photographers of a plurality of TV cameras, the notification lamps on the VSW 7 side corresponding to the respective TV cameras are turned on, and the switcher sequentially displays these recorded images. It is determined whether or not to replay the image for the main line, and if the image is to be replayed, the image is sequentially recorded in the replay VTR 10. Normally, the image captured by the selected TV camera is output as the image for the main line, and the image for replay is inserted between them. The insertion of the replay video into the main line is performed by the switcher after the replay video is recorded in the replay VTR 10 by VS.
V7 for replay at a predetermined timing by switching W7
This is done by playing the video for replay recorded in 10.

In the case of live broadcasting, this output is broadcast directly,
In cases other than live broadcasting, the video recorded on the main line VTR 9 is reproduced and broadcast. As described above, by providing the endless recording device on each TV camera side, the image taken by each TV camera can be effectively reproduced without missing, and it is not necessary to install many high-performance VTRs. In addition, the increase in cost can be suppressed as much as possible.

Further, compared to the case of using a small cassette type VTR, it is not necessary to replace or rewind the recording medium such as a video cassette, and the replay image is recorded / reproduced by a simple switch operation. As a result, it is possible to improve the efficiency of the shooting work and prevent the missed shooting of the “great scene” as much as possible. The present embodiment is preferably used for live broadcasting such as sports broadcasting in which an unpredictable situation is more likely to occur than in the case of shooting in accordance with a predetermined script or the like in a studio, for example.

The endless recording device is mounted inside the TV camera body, and is also provided between the TV camera and the CCU and at the C position.
It may be provided inside the CU, and it is sufficient if the photographer of the TV camera can control recording / playback.

[0027]

As described above, according to the invention described in claim 1, since the images from each TV camera are recorded in the endless recording device for a predetermined time, the TV camera not selected for the main line. The recorded video can be recorded and used for main line video, while the endless recording system controls recording / playback by simple operation without operating a recording medium such as a cassette. Can be done, while suppressing the cost as much as possible,
It is possible to build a broadcasting system that can prevent missed "great scenes" as much as possible.

According to the second aspect of the present invention, the replay request from the TV camera side can be notified to the video switching means side with high visibility and more reliably, and the video camera and the video image can be displayed with a simple structure. Coordination with the switching means side can be taken more closely. According to the invention described in claim 3,
Since the endless recording device can be opened when the replay image is completely recorded from the endless recording device to the replay recording device, the recording by the endless recording device can be restarted promptly, and the replay from the endless recording device can be performed. Since the waiting time for outputting the video for the use is shortened, it is possible to perform smoother shooting.

According to the invention described in claim 4, since the operation switch of the endless recording device can be arranged in the TV camera main body, the operation is facilitated and the increase of the photographing equipment is suppressed, and the system is complicated. Can be prevented. According to the fifth aspect of the present invention, since a highly mobile TV camera can be used without hindering the miniaturization and weight reduction of the TV camera body, the freedom of shooting is improved and a better scene is shot. can do.

According to the invention described in claim 6, it is possible to record an image for a longer period of time with an inexpensive structure, and to record or reproduce the image information by randomly accessing the image information for immediate recording or reproduction. The video can be played. According to the invention described in claim 7, since the sliding portion of the endless recording device can be almost eliminated, the durability of the device can be improved and the video information can be randomly accessed for recording / reproducing. Thus, it is possible to immediately record or reproduce the desired video.

According to the invention described in claim 8, since it is possible to secure a video for replay and generate a request for replay at the same time by a simple switch operation, the operation of the photographer is simplified and the operation is promptly performed. A request for replay can be transmitted, and a more timely decision as to whether or not to output a video for replay to the main line can be prompted.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram in the present embodiment.

FIG. 2 is a diagram illustrating a method of informing a replay request according to the present embodiment.

FIG. 3 is a system configuration diagram of a conventional broadcasting system.

[Explanation of symbols]

 1 to 5 TV cameras 1a to 5a Endless recording device 7 Video selection switch 8 Replay request notification means 10 Replay VTR 21 Stop switch 22 Notification lamp

Claims (8)

[Claims] 1. A video selected by a specific TV camera is selected from videos taken by a plurality of TV cameras, and the video output by the selected TV camera is output as a video for broadcasting, while the video output by a TV camera not selected. In a broadcasting system in which an image is once recorded, and then reproduced (replayed) as an image for broadcasting as needed, provided in each of the plurality of TV cameras, and taken by each TV camera from the present time to a predetermined time past An endless recording device capable of recording / reproducing the recorded video, a video switching means for selectively switching and outputting the video from the plurality of TV cameras, and a video switching means for the video switching means when a replay is requested from the TV camera side. A replay request notification means for notifying the existence of a replay request, and a video for replay captured by the TV camera. Is output as a video for broadcasting at a predetermined timing when necessary. 2. The broadcasting system according to claim 1, wherein the replay request notifying means makes a notification by turning on a lamp provided on the video switching means side when a replay is requested from the TV camera side. 3. A broadcasting system is provided with a recording device for replay, and the video for replay recorded in the endless recording device is recorded in the recording device for replay,
The broadcasting system according to claim 1 or 2, wherein the video recorded in the recording device for replay is reproduced and output as a video for broadcasting. 4. The broadcasting system according to claim 1, wherein the endless recording device is built in a TV camera body. 5. The endless recording device is separated from a TV camera body, and is interposed between the TV camera and the image switching means. Broadcasting system. 6. The broadcasting system according to any one of claims 1 to 5, wherein the endless recording device records and reproduces video information by randomly accessing the video information by a hard disk. 7. The broadcasting system according to claim 1, wherein the endless recording device records and reproduces video information by randomly accessing the video information by a memory. 8. The endless recording device, when recording a video taken by a TV camera, secures a video for replay when the recording of the video is stopped, and simultaneously generates a request for replay. Claims 1 to 7
The broadcasting system according to any one of 1.