JPH08163432A - On-air information generating device - Google Patents

Abstract

PURPOSE: To provide an on-air information generating device in which on-air tarry information is generate with high accuracy and flexible configuration. CONSTITUTION: Information relating to on-air is fed to a controller 4 in real time through a high speed communication line 5 from a switcher 1 and DVEs (special video image effect devices) 2, 3, and the controller 4 generates the on-air information for each field based on the information relating to the on-air, then the accuracy of generation of the on-air tarry information is improved. Thus, an interconnection cable between the switcher 1 and the DVEs 2, 3 is not required to generate the on-air tarry information to attain flexible system configuration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-air information creating apparatus for creating a tally signal indicating that a camera is on-air.

[0002]

2. Description of the Related Art Conventionally, there has been a system in a broadcasting station for transmitting a video signal on air after performing video editing. FIG. 5 is a diagram illustrating conventional on-air information. In FIG. 5, subjects photographed by the plurality of cameras 10, 11 and 12 are converted into video signals and supplied to the switcher 16. In addition, a video tape recorder (hereinafter referred to as "VTR") is used for the video signal that has already been captured.
It is also possible to record on a cassette tape by 13, 14, 15 and reproduce the video signal from the VTR 13, 14, 15 and supply it to the switcher 16.

The switcher 16 is a device for synthesizing the supplied video signals of a plurality of systems by wiping, mixing and the like.

For example, with respect to a video signal, while wiping off a certain image so as to wipe it away with a specific pattern, or while pushing it out from the screen, at the same time while wiping another image, fading out a certain image, Create a mix that fades in other images.

The video signal synthesized by the switcher 16 is a special video effect device (Digital Video).
Effect, hereinafter referred to as "DVE". ) 17, 1
8 and 19 are supplied. DVEs 17, 18, and 19 are devices that apply special effects to video signals.

The video signal subjected to the special effect by the DVEs 17, 18 and 19 is supplied to the switcher 16.
The video output signal synthesized by the switcher 16 is
The video tape having the special effect is completed by being supplied to a recording VTR (not shown) and recorded on the video tape.

DVEs 17, 18, and 19 are composed of frame memories and are devices for applying special effects to video signals. This frame memory has, for example, zoom, 9-screen multi, monotone, mosaic, afterimage effect,
Each special effect such as strobe action and still image can be applied.

Here, the zoom is to enlarge a part of the image to fill the screen. In the 9-screen multi, the screen is divided into 9, and a reduced image is displayed on each small screen. Monotone is what makes an image black and white. Mosaic is for making an image into a mosaic shape. The afterimage effect makes an image remain. Strobe action is to stop the video at regular intervals. A still image is one in which the image information of a specific frame of a moving image is temporarily stored in a frame memory, and the image information is read from the memory and output.

The video signal subjected to the special effect is supplied to the switcher 16. The switcher 16 is for synthesizing a video signal with a special effect by wiping, mixing, or the like. Here, the wipe is to insert another image at the same time while erasing a certain image by wiping it away with a specific pattern or pushing it out from the screen. A mix is one in which one image fades out while another image fades in at the same time. The video signal synthesized by the switcher 16 is supplied to a recording VTR (not shown).

Here, the DVEs 17, 18, and 19 output a video signal and a key signal that have undergone a special effect. The key signal is a signal for setting the shape and the like of the combined image when the switcher 16 combines the image with other video signals.

At this time, the plurality of cameras 10, 11, 12
Of these, a video signal subjected to special effects by the DVEs 17, 18, and 19 is supplied to the switcher 16, and a tally signal is supplied to the camera used for image composition.
Therefore, the three cameras 10, 11, and 12 are all DV
When supplying the video signal to which the special effect is applied by E17, 18, 19 to the switcher 16, all the tally lamps 24, 2 of the three cameras 17, 18, 19 are supplied.
5, 26 lights up. At the same time, the tally signal is also supplied to the monitors 20 and 21, and the tally lamps 22 and 23 having the numbers corresponding to the cameras to which the tally signal is supplied are turned on.

As a result, the plurality of cameras 10, 11, 1
It is possible to know which of the two cameras has a video signal on air.

FIG. 6 is a diagram for explaining another conventional on-air information. In FIG. 6, the video signal from the camera is C
1 and C2, of which the video signal C2 is selected and DV
Supply to E28. The video signal V and the key signal K which have been subjected to the special effect by the DVE 28 are supplied to the switcher 27.

Then, in the switcher 27, the video signal V and the key signal K supplied from the DVE 28 are selected as the video signal and the key signal. The video signal C1 is selected as the background signal. The background signal is added to the key signal by the adder 30. The key signal to which the video signal and the background signal are added is supplied to the keyer 29.

In the keyer 29, the key signal to which the video signal and the background signal are added is multiplied by the constants K and 1-K by the multipliers 31 and 32, respectively. Here, 0 <K <1. Then, the video signal multiplied by the multipliers 31 and 32 and the key signal added with the background signal are added by the adder 33 and output.

At this time, the DVE key signal K is supplied to the key detector 34. The key detector 34 detects the output of the key signal. Key detector 34
In, when the key signal is detected, the detection signal is supplied to the tally logic software 35. A tally signal is created in the tally logic software 35.

In this case, since the key signal is detected for each video signal which has been subjected to the special effect processing, one DVE is provided for each video signal.
A key detector 34 and tally logic software 35 for each machine are required. In addition, the key detector 34
The time required to detect the key signal in 1 requires a period of 1 frame. Therefore, as a result, the tally signal creation processing is delayed.

The key signal will be described with reference to FIG.
The explanation of the key signal in FIG. 7 is for explaining the operation in FIG. The video signal C2 is supplied to the DVE 28 for special effect processing. Reference numeral 36 is a video signal that has been subjected to special effect processing by reduction processing. Reference numeral 39 is a key signal obtained by the special effect processing. The video signal C1 (37) selected as the background signal and the special effect processed signal 36
Are combined using the key signal 39 to form the video signal 38.

[0019]

As described above, in the conventional tally signal creation by creating the on-air information, the switcher creates the on-air tally signal. However, since the tally information of the DVE connected to the switcher is obtained as contact information of a general-purpose interface such as GPI, it is difficult to obtain accurate on-air tally information of the system.

When the switcher and the DVE are tightly coupled and the key signal from the DVE is detected by the key detector and the tally signal is created by the tally logic software, the key detector and tally for one DVE unit. One logic software is required, and moreover, one frame period is required for detecting the key signal in the key detector, so that it takes a long time for tally signal generation processing, and it is not possible to have a flexible system configuration. there were.

The present invention has been made in view of the above points, and an object thereof is to provide an on-air information creating apparatus for creating highly accurate on-air tally information with a flexible structure.

[0022]

As shown in FIGS. 1 to 4, the on-air information creating apparatus of the present invention is a video signal selecting means 1 for selecting an arbitrary video signal from the video signals supplied from a plurality of cameras. And a plurality of special video effect means 2 and 3 for applying a special video effect to the video signals supplied from a plurality of cameras, and the operation of the video signal selection means 1 and the plurality of special video effect means 2 and 3 through a high-speed communication line. Control means 4 for controlling via the high speed communication line 5 from the video signal selecting means 1 and the plurality of special video effect means 2, 3 to the control means 4 in real time. However, the control means 4 creates on-air information for each field in real time from information related to on-air.

As shown in FIGS. 1 to 4, the on-air information creating apparatus of the present invention includes a video signal selecting means 1 for selecting an arbitrary video signal from video signals supplied from a plurality of cameras, and a plurality of video signal selecting means 1. A plurality of special video effect means 2 and 3 for applying a special video effect to the video signal supplied from the camera;
The operation of the plurality of special image effect means 2 and 3 is performed by the high speed communication line 5.
The operation of the first control means 6 and the operation of the video signal selection means 1 are controlled via the high speed communication line 5, and
The first control means 6 and the second control means 7 connected via the high-speed communication line 5 are provided, and information related to on-air is transmitted from the plurality of special image effect means 2 and 3 via the high-speed communication line 5. The first control means 6 is supplied in real time to
The on-air information for each field is created in real time from the on-air related information, and the on-air related information is sent from the video signal selection means 1 to the second control means 7 in real time via the high speed communication line 5. The second control means 7 supplies the on-air information for each field in real time from the information related to the on-air, and either the first control means 6 or the second control means 7 supplies the other on-air information. It supplies information related to.

Further, in the on-air information creating apparatus of the present invention, as shown in FIGS. 1 to 4, in the above description, the plurality of special image effect means 2, 3 are the first and second special image effect means 2, 3. Two video signals are supplied from a plurality of cameras, and a special video effect is applied to each of the two video signals. The video signal selecting means 1 has a pre-stage synthesizing section 8 and a post-stage synthesizing section 9. The synthesizing unit 8 synthesizes another video signal different from the two video signals supplied from the plurality of cameras and the output signal of one of the two special video effect units 2 and 3, and the synthesizing unit 9 in the subsequent stage Two video signals supplied from a plurality of cameras and another video signal different from the video signal supplied to the synthesizing unit 8 in the preceding stage are combined with the output signal of the synthesizing unit 8 in the preceding stage.

Further, in the on-air information producing apparatus of the present invention, as shown in FIGS. 1 to 4, in the above description, the plurality of special image effect means 2 and 3 are the first and second special image effect means 2 and 3. Two video signals are supplied from a plurality of cameras, and a special video effect is applied to each of the two video signals. The video signal selecting means 1 has a pre-stage synthesizing section 8 and a post-stage synthesizing section 9. The synthesizing unit 8 synthesizes another video signal different from the two video signals supplied from the plurality of cameras and the output signal of one of the two special video effect units 2 and 3, and the synthesizing unit 9 in the subsequent stage Two video signals supplied from a plurality of cameras and another video signal different from the video signal supplied to the synthesizing unit 8 in the preceding stage are combined with the output signal of the synthesizing unit 8 in the preceding stage.

[0026]

According to the present invention, the information related to on-air is controlled in real time from the video signal selecting means 1 and the plurality of special video effect means 2 and 3 through the high speed communication line 5.
Since the control means 4 creates on-air information for each field in real time from the information related to on-air, it is possible to improve the accuracy of creating on-air tally information and to create on-air tally information. In addition, a connection cable between the video signal selection means 1 and the plurality of special video effect means 2 and 3 is unnecessary, and a flexible system configuration can be realized.

According to the present invention, information relating to on-air is supplied from the plurality of special image effect means 2, 3 to the first control means 6 in real time via the high-speed communication line 5, and the first control means 6 is controlled. The means 6 creates on-air information for each field in real time from the information related to on-air, and supplies the information related to on-air from the video signal selection means 1 to the second control means 7 in real time via the high-speed communication line 5. , The second control means 7 creates on-air information for each field in real time from the information related to on-air,
Since the information related to the other on-air is supplied to either one of the first control means 6 and the second control means 7, parallel processing can be performed at a higher speed, and the on-air tally information can be created. It is possible to improve accuracy, eliminate the need for a connecting cable between the video signal selection means 1 and the plurality of special video effect means 2 and 3 for creating the on-air tally information, and have a flexible system configuration. You can

Further, according to the present invention, in the above,
The first and second special video effect means 2 and 3 respectively apply the special video effect to the two video signals supplied from the plurality of cameras, and the combining section 8 in the preceding stage of the video signal selection means 1 is applied with the special effect. The other video signal different from the video signal and the output signal of one of the two special video effect means are combined, and the combining unit 9 in the latter stage is combined with the video signal subjected to the special effect and the combining unit 8 in the former stage. Since the supplied video signal is for synthesizing another video signal different from each other and the output signal of the synthesizing section 8 in the preceding stage, the control means 4 is supplied with information relating to on-air, and the video signal selecting means 1 is controlled. The on-air tally information is easily checked by checking the on-air tally information in the order of the latter-stage combining unit 9, the former-stage combining unit 8, and one of the special image effect means 2 and 3 in which the video signal is supplied to the former-stage combining unit 8. To get Can.

Further, according to the present invention, in the above,
The first and second special video effect means 2 and 3 respectively apply the special video effect to the two video signals supplied from the plurality of cameras, and the combining section 8 in the preceding stage of the video signal selection means 1 is applied with the special effect. The other video signal different from the video signal and the output signal of one of the two special video effect means 2 and 3 are synthesized, and the synthesis unit 9 in the subsequent stage synthesizes the video signal subjected to the special effect and the synthesis in the previous stage. Since the other video signal different from the video signal supplied to the unit 8 is combined with the output signal of the previous combining unit 8, the first control unit 6 or the second control unit 7 is controlled. Information related to the other on-air is supplied to either one of them, and the special synthesizing unit 9 in the rear stage of the video signal selecting unit 1, the synthesizing unit 8 in the front stage, and the special video effect in which the video signal is supplied to the synthesizing unit 8 in the front stage On-air type in the order of means 2 and 3. By examining the over information, it can be easily obtained on-air tally information faster.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In this example, the on-air information generating apparatus of the present invention supplies information related to on-air to a controller in real time from a switcher and a plurality of DVEs through a high-speed communication line, and the controller turns on-air. On-air tally information for each field is created in real time from related information. The on-air tally information informs that the camera is on-air.

FIG. 1 is a block diagram showing the configuration of an embodiment of the on-air information creation device of the present invention. In FIG. 1, a switcher 1 is a device that combines the supplied video signals of a plurality of systems by wiping, mixing, or the like.

For example, with respect to a video signal, while wiping off a certain image so as to wipe it away with a specific pattern, or while pushing it out from the screen, at the same time a wipe for inserting another image, fading out a certain image, simultaneously Create a mix that fades in other images.

The video signal synthesized by the switcher 1 is supplied to DVE2 or DVE3. DVE is
Although only DVE2 and DVE3 are shown, a plurality, for example, n (n is a natural number) are connected. DVE is
This is a device that applies special effects to video signals.

The video signal subjected to the special effect by DVE2 or DVE3 is supplied to the switcher 1. The video output signal combined by the switcher 1 is supplied to a recording VTR (not shown) and recorded on a video tape, thereby completing a video tape having a special effect.

The DVE is composed of a frame memory and is a device for applying a special effect to a video signal. This frame memory is capable of performing various special effects such as zoom, 9-screen multi, monotone, mosaic, afterimage effect, strobe action, and still image.

Here, the zoom is to enlarge a part of the image to fill the screen. In the 9-screen multi, the screen is divided into 9, and a reduced image is displayed on each small screen. Monotone is what makes an image black and white. Mosaic is for making an image into a mosaic shape. The afterimage effect makes an image remain. Strobe action is to stop the video at regular intervals. A still image is one in which the image information of a specific frame of a moving image is temporarily stored in a frame memory, and the image information is read from the memory and output.

Here, the switchers 1, DVE2 and DVE3 are connected to the controller 4 via the high speed communication line 5. The controller 4 checks the information about the on-air of the switchers 1, DVE2 and DVE3 through the high-speed communication line 5 and creates an on-air tally signal in real time. The controller 4 has
Built-in on-air tally logic.

FIG. 2 is a block diagram showing the configuration of another embodiment of the on-air information creation device of the present invention. The embodiment shown in FIG. 2 is different from that shown in FIG. 1 in that two controllers 6 and 7 are provided and the switchers 1, DVE2 and DVE3 are respectively connected to different controllers 6 and 7 through a high speed communication line 5. It is a point.

In FIG. 2, DVE2 and DVE3 are connected to a controller 6 via a high speed communication line 5. Further, the switcher 1 is connected to the controller 7 via the high speed communication line 5. Controller 6
And the controller 7 are connected to each other via a high-speed communication line 5.

Here, the controller 6 checks the information about the on-air of the switcher 1 through the high-speed communication line 5 and creates the on-air tally signal in real time. Further, the controller 7 checks the information regarding the on-air of the DVE 2 or DVE 3 through the high speed communication line 5 and creates the on-air tally signal in real time.

Further, the controller 6 supplies the information about the on-air of the switcher 1 to the controller 7 through the high speed communication line 5. The controller 7 examines the information about the on-air of the switcher 1 and the DVE2 or DVE3 and creates an on-air tally signal in real time. Here, the controller 6 is a sub-controller and the controller 7 is a main controller, but they may be configured in reverse. Controller 6,
On-air tally logic is built in 7.

FIG. 3 is a diagram for explaining the tally information creating operation of another embodiment of the on-air information creating apparatus of the present invention. In FIG. 3, externally input video signals 1, 2, 3,
, ..., n, video signals 1, 2 are selected as signals to be supplied to the buses AUX1 and AUX2, and are supplied to DVE2 and DVE3, respectively. This externally input video signal is supplied from, for example, a camera or a playback VTR.

The video signals 1, 2 respectively supplied to DVE2 and DVE3 are supplied to the switcher 1 after being subjected to a special effect. In the switcher 1, only the video signal supplied from the DVE 2 is selected as the signal supplied to the bus B, and the M / E 8 together with the externally input video signal 3 selected as the signal supplied to the bus A.
Is supplied to. M / E8 is a mix effect,
It is for synthesizing video signals. PGM and PST are a program bus and a preset bus.
The programmed video signal is selected as the signal supplied to M, and the background video signal is selected as the signal supplied to the bus PST.

The output of the M / E8 is selected as a signal supplied to the bus PGM, and the PGM / P is selected together with the externally input video signal 4 selected as a signal supplied to the bus PST.
Supplied to ST9. The PGM / PST 9 synthesizes and outputs the video signals of the program bus and / or the preset bus. In this case, the output is only the bus PGM.

In FIG. 3, the on-air tally information includes PGM / PST9, M / E8, and DVE as shown below.
2 and respective on-air tally information from DVE3. First of all, PGM / PST9
Output is based on the input of bus PGM, so
Check the on-air tally information of M / E8 which is the input of GM. Since the bus PST is not output, it is not necessary to check the externally input video signal 4.

Secondly, the output of M / E8 is a composite image of buses A and B, and the video signal 3 of the external input and the output of DVE2 are used. Therefore, the on-air tally information of DVE2 is checked. Thirdly, the externally input video signal 1 is used for the on-air tally information of the DVE 2. From the above, the externally input video signals 1 and 3 are used as the primary input data.
And M / E and DVE data are
It can be seen that 8 and DVE2 are used.

Where the controller, DVE2 and D
As described above, the VE3 and the switcher 1 are connected by the high speed communication line. This is because if the status of each unit is not notified to the controller in real time,
This is because incorrect on-air tally information is created.

FIG. 4 is a flow chart showing the operation of an embodiment of the on-air information creation device of the present invention. First,
As a premise of this operation, each unit (switcher 1,
Data necessary for generating the on-air tally signal is supplied from DVE2 and DVE3) to the controller via the high-speed communication line.

Here, the switcher is an input material used to output each bus, and the DVE is an input material used to output a video signal and a key signal.
The controller generates an on-air tally signal for each field based on the on-air tally information supplied from each unit in the following procedure.

In FIG. 4, first, in step S1, the tally flag is initialized. Here, the tally flag is the following 3
It consists of types of data. The first is primary input data, and shows on / off information of on-air tally corresponding to the number of primary inputs. Second, M / E, DV
It is E data, and shows on / off information of on-air tally for each M / E and DVE. Third is M / E, D
This is the VE processing completion data and indicates the end of the on-air tally processing for each M / E and DVE. In this case, M /
When the states of the E, DVE data and the M / E, DVE processing completion data match, the on-air tally processing ends, and the primary input data of the tally flag indicates the on-air tally signal.

Next, in S2, the PGM / PST (M / E) tally is evaluated. That is, P that makes the final output video signal
Evaluate the GM / PST tally. M / in step S3
It is determined whether or not the E and DVE tally evaluations are completed, and if the evaluation is completed, the process ends at the end. If the M / E and DVE tally evaluation is not completed in step S3, the M / E and DV are calculated in step S4.
E-tally evaluation was performed, and as a result of this evaluation, PGM / PST
The primary input, M / E output, and DVE output as the input materials used for output are checked, the tally flag is updated, and the process returns to step S3.

The M / E and DVE tally evaluations are performed as follows. When the input material has M / E output and DVE output, the tally is evaluated and the tally flag is updated. Further, the tally-evaluated M / E and DVE are written in the tally flag M / E and DVE processing completion data, and are excluded from the target of the subsequent tally evaluation.

When the input material is only primary input, that is, when the states of the M / E and DVE data of the tally flag and the states of M / E and DVE processing completion data match,
The primary input of the tally flag indicates an on-air tally signal.

According to the above example, the switcher 1 as the video signal selecting means and the DV as the plurality of special video effect means are provided.
Information related to on-air is supplied from E2 and 3 via the high-speed communication line 5 to the controller 4 as control means in real time, and the controller 4 as control means outputs on-air information for each field from the information related to on-air in real time. In this case, the accuracy of creating the on-air tally information can be improved, and the switcher 1 as the video signal selecting means and the D as the plurality of special video effect means for creating the on-air tally information.
A connection cable between the VEs 2 and 3 is unnecessary, and a flexible system configuration can be achieved.

Further, according to the above example, the information related to the on-air is supplied from the DVEs 2 and 3 as the special image effect means to the controller 6 as the first control means in real time through the high speed communication line 5. The controller 6 as the first control means creates on-air information for each field from the information related to the on-air in real time, and the information related to the on-air is transmitted from the switcher 1 as the video signal selection means via the high-speed communication line 5. The controller 7 as the second control means is supplied in real time, and the controller 7 as the second control means creates on-air information for each field in real time from the information related to the on-air, and the controller as the first control means. 6 or the controller 7 as the second control means Since the information related to the other on-air is supplied to one side, parallel processing can be performed at higher speed, the accuracy of creating on-air tally information can be improved, and the video signal for creating on-air tally information can be improved. A connection cable between the switcher 1 as the selection means and the DVEs 2 and 3 as the plurality of special image effect means becomes unnecessary, and a flexible system configuration can be obtained.

Further, according to the above example, in the above, the first
And a special video effect is applied to each of the two video signals supplied from a plurality of cameras by the DVEs 2 and 3 serving as the second special video effect means, and M / serving as a synthesizing unit in the preceding stage of the switcher 1 serving as the video signal selecting means. E8 synthesizes another video signal different from the video signal to which the special effect is applied and one output signal of the two special video effect means DVE2 and DVE3, and the PGM / PST9 as a synthesizing unit in the latter stage is special The effected video signal and the video signal supplied to the M / E8 serving as the former synthesizing unit are combined with another video signal different from the output signal of the M / E8 serving as the former synthesizing unit. Therefore, the information related to the on-air is supplied to the controller 4 as the control means, and the PGM / PS as the combining unit in the subsequent stage of the switcher 1 as the video signal selection means. 9, M / E as the synthesis of the previous stage
8. The on-air tally information can be easily obtained by examining the on-air tally information in the order of the DVEs 2 and 3 as one special image effect means in which the video signal is supplied to the synthesizing unit 8 in the preceding stage.

Further, according to the above example, in the above, the first
And a special video effect is applied to each of the two video signals supplied from a plurality of cameras by the DVEs 2 and 3 serving as the second special video effect means, and M / serving as a synthesizing unit in the preceding stage of the switcher 1 serving as the video signal selecting means. E8 synthesizes another video signal different from the video signal to which the special effect is applied and one output signal of DVE2 and 3 as two special video effect means, and PGM / P as a post-synthesis unit.
In ST9, the video signal subjected to the special effect and the video signal supplied to the M / E8 as the former-stage synthesizing unit are different from each other, and the output signal of the former-stage synthesizing unit 8 is synthesized. Therefore, one of the controller 6 as the first control means or the controller 7 as the second control means is supplied with the information related to the other on-air, and the switcher 1 as the video signal selection means is provided in the subsequent stage. PGM / PST9 as a synthesizing unit, M / E8 as a synthesizing unit in the preceding stage, and DVE2, 3 as one special image effect means for supplying a video signal to the synthesizing unit 8 in the preceding stage.
By examining the on-air tally information in the order of, it is possible to obtain the on-air tally information at higher speed and easily.

[0058]

According to the present invention, information relating to on-air is supplied to the control means in real time from the video signal selecting means and the plurality of special image effect means via the high speed communication line, and the control means relates to the on-air. Since the on-air information for each field is created in real time from the information that is stored, it is possible to improve the accuracy of creating the on-air tally information, and the video signal selection means and multiple special video effects for creating the on-air tally information. A connection cable with the means is not required, and a flexible system configuration can be obtained.

Further, according to the present invention, information relating to on-air is supplied from the plurality of special image effect means to the first control means in real time through the high-speed communication line, and the first control means relates to the on-air. The on-air information for each field is created in real time from the information to be provided, and the information related to on-air is supplied from the video signal selecting means to the second control means in real time through the high-speed communication line 5, and the second control means is turned on-air. Since the on-air information for each field is created in real time from the information related to, and the information related to the other on-air is supplied to either one of the first control means or the second control means, High-speed parallel processing is possible, the accuracy of creating on-air tally information can be improved, and video signal selection for creating on-air tally information is possible. Connection cable between the means and the plurality of special video effect means becomes unnecessary, moreover, it can be a flexible system configuration.

Further, according to the present invention, in the above,
The two video signals supplied from the plurality of cameras are respectively subjected to the special video effect by the first and second special video effect means, and the combining section in the preceding stage of the video signal selecting means is the video signal to which the special effect is applied. Another different video signal and the output signal of one of the two special video effect means are combined, and the post-combination part is the video signal to which the special effect has been applied and the video signal supplied to the pre-composition part. Since the other different video signals and the output signal of the former synthesizing unit are synthesized, information related to on-air is supplied to the control means, and the latter synthesizing unit of the video signal selecting unit, the synthesizing unit of the former stage, The on-air tally information can be easily obtained by examining the on-air tally information in the order of the one special image effect means in which the image signal is supplied to the former combining section.

Further, according to the present invention, in the above,
The two video signals supplied from the plurality of cameras are respectively subjected to the special video effect by the first and second special video effect means, and the combining section in the preceding stage of the video signal selecting means is the video signal to which the special effect is applied. Another different video signal and the output signal of one of the two special video effect means are combined, and the post-combination part is the video signal to which the special effect has been applied and the video signal supplied to the pre-composition part. Since the other different video signals are combined with the output signal of the preceding combining section, either the first control means or the second control means is supplied with information relating to the other on-air. Then
By examining the on-air tally information in the order of the combination unit in the latter stage of the image signal selection unit, the combination unit in the previous stage, and the special image effect unit in which the image signal is supplied to the combination unit in the previous stage, it is possible to perform on-air at higher speed and easily. You can get tally information.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of an on-air information creation device of the present invention.

FIG. 2 is a block diagram showing the configuration of another embodiment of the on-air information creation device of the present invention.

FIG. 3 is a diagram illustrating a tally information creating operation of an embodiment of the on-air information creating device of the present invention.

FIG. 4 is a flowchart showing the operation of an embodiment of the on-air information creation device of the present invention.

FIG. 5 is a diagram illustrating conventional on-air information creation.

FIG. 6 is a diagram illustrating another conventional on-air information creation.

FIG. 7 is a diagram illustrating a key signal.

[Explanation of symbols]

 1 Switcher 2 DVE 3 DVE 4 Controller 5 High-speed communication line 6 Controller 7 Controller 8 M / E 9 PGM / PST

Claims (4)

[Claims] 1. A video signal selecting means for selecting an arbitrary video signal from video signals supplied from a plurality of cameras, and a plurality of special video effects for applying a special video effect to the video signals supplied from the plurality of cameras. Means and control means for controlling the operations of the video signal selection means and the plurality of special video effect means via a high-speed communication line, and the video signal selection means and the plurality of special video effect means The information related to on-air is supplied to the control means in real time via a high-speed communication line, and the control means creates on-air information for each field from the information related to on-air in real time. On-air information creation device. 2. A video signal selecting means for selecting an arbitrary video signal from video signals supplied from a plurality of cameras, and a plurality of special video effects for applying a special video effect to the video signals supplied from the plurality of cameras. Means, first control means for controlling the operation of the plurality of special video effect means via a high speed communication line, and operation of the video signal selecting means via a high speed communication line, and the first control means. A first control means connected to the control means via a high-speed communication line; and information related to on-air from the plurality of special image effect means via the high-speed communication line in real time.
The first control means creates on-air information for each field from the information related to the on-air in real time, and the information related to the on-air from the video signal selection means via the high-speed communication line. Is supplied to the second control means in real time, and the second control means creates on-air information for each field in real time from the information related to the on-air, and the first control means or the second control is provided. An on-air information creating device, characterized in that information relating to the other on-air is supplied to one of the means. 3. The on-air information creation device according to claim 1, wherein the plurality of special image effect means are two of first and second special image effect means, and two special image effect means are provided from the plurality of cameras. A special video effect is applied to each of the video signals, and the video signal selecting means has a front-stage combining section and a rear-stage combining section, and the front-side combining section is two video signals supplied from the plurality of cameras. And another output signal of one of the two special video effect means are combined, and the rear combining unit combines the two video signals supplied from the plurality of cameras and the front combining unit. An on-air information creation device, characterized in that another video signal different from the video signal supplied to the unit is combined with the output signal of the preceding combining unit. 4. The on-air information creation device according to claim 2, wherein the plurality of special image effect means are two of first and second special image effect means, and two special image effect means are provided from the plurality of cameras. A special video effect is applied to each of the video signals, and the video signal selecting means has a front-stage combining section and a rear-stage combining section, and the front-side combining section is two video signals supplied from the plurality of cameras. And another output signal of one of the two special video effect means are combined, and the rear combining unit combines the two video signals supplied from the plurality of cameras and the front combining unit. An on-air information creation device, characterized in that another video signal different from the video signal supplied to the unit is combined with the output signal of the preceding combining unit.