JP2765092B2 - Video synthesis control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video synthesis control device, and more particularly to a video synthesis control device for generating a control signal for synthesizing a video signal in a television transmission device.

[Conventional technology]

FIG. 3 is a block diagram of a conventional video synthesizing control device, which sends out event data 301 relating to a next (Next) event and an on-air (ON Air) event, and supplies a control signal 302 to the automatic operation control data generator 4. And receives the switching output of the switching unit 6 and converts it into the on-air control data 30.
The control data processing main unit 3a output as 4 and the control signal 3
While receiving the 02, the event data 301 including the next event and the on-air event, the next data and the on-air data are set, and the control data 401 required for the video synthesis is set.
An automatic operation control data generating unit 4 for outputting event data as control data 501 in response to a manual operation input;
1 and 501 are normally switched by a manual operation and output, and a switching unit 6 is provided to supply to the control data processing main unit 3a.

With the above-described configuration, the control data processing main unit 3a receives either the control data 401 or 501 received from the switching unit 6 as control data 601 and performs a necessary measure on the control data 601. Had been offered to.

[Problems to be solved by the invention]

The above-described conventional video synthesis control device has the following problems.

That is, it is assumed that the control data relating to the on-air event is regenerated and output by manual operation in a state where the control data by the manual operation control data generating unit 5 is switched to the control data processing main unit 3a by the switching unit 6. At this time, when the control is performed so that the control data from the automatic operation control data generation unit 4 is output to the control data processing main unit 3, the control data of the on-air event in the automatic operation control data generation unit 4 is changed to the manual operation control data generation. Since it is different from that of the unit 5, the control data of the on-air event sent from the control data processing main unit 3 is different, and there is a disadvantage that the on-air image is changed.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks and to provide an image composition control device for switching from manual operation to automatic operation without changing the on-air image.

[Means for solving the problem]

The video synthesis control device of the present invention is a video synthesis control device that generates a control signal for synthesizing a plurality of video signals. In the video synthesis control device, it is necessary to synthesize a series of on-air video and next video to be successively projected. Automatic operation control for receiving event data including a next event and an on-air event for determining a control content regarding a combination content of a plurality of video signals and a projection order and the like, and automatically outputting these event data as control data required for the synthesis by receiving an event data A data generation unit, a manual operation control data generation unit that generates the control data by manual operation in response to the event data, and manually or manually outputs control data output from the automatic operation control data generation unit and the manual operation control data generation unit. Switching is performed by the switching control signal received from the outside, and the switching information is A switching unit that receives the event data and the switching information, detects that a switching operation has been performed by the switching unit, and outputs this state as switching detection data; and the event data and the switching control. When the signal and the automatic operation control data generation unit are processing only the on-air event, the switching control signal for prohibiting the switching from the manual operation to the automatic operation and the operation of the automatic operation control data generation unit are controlled. And a control data processing main unit that outputs a control signal and outputs on-air control data so as not to change the on-air image while receiving the switching output of the switching unit and the switching detection data.

〔Example〕

Next, the present invention will be described with reference to the drawings. First
FIG. 1 is a block diagram of an embodiment of a video compositing control apparatus according to the present invention, which includes a switching unit 1, a switching detection unit 2, a control data processing main unit 3, an automatic operation control data generation unit 4, and a manual operation control data generation unit 5. It is comprised including.

In the embodiment of FIG. 1, first, when the control data is manually switched by the switching unit 1, the switching information
Is transmitted, and the switching detection data is
201 is output and supplied to the control data processing main unit 3.

The control data processing main unit 3 receives the output of the control data from the switching unit 1 and outputs the automatic operation control data generating unit 4 and the manual operation control data generating unit 5 without breaking the on-air image.
Then, based on the data obtained from the switching detection unit 2 and the switching unit 1, event data 301 including a next event and an on-air event is output.

In the present embodiment, the switching unit 1 switches the input by manual operation. However, the switching can be easily controlled by the control data processing main unit 3.

FIG. 2 is a block diagram showing in detail the contents of the automatic operation control data generator 4 of FIG. The basic configuration of the manual operation control data generator 5 is almost the same except for the conditions for providing the control signal input.

As shown in FIG. 2, the automatic operation control data generation unit 4
Memory area (A) 12 as three data storage areas
And a memory area (B) 13 and a memory area (C) 14. The control section 15 receives a control signal 302 supplied from the control data processing main body section 3 for writing and reading data to and from these memory areas. , And outputs control data 401. The manual operation control data generator 5 is different from the manual operation control data generator 5 only in that the manual operation input 502 provides a control signal instead of the control signal 302 as shown in FIG.

In the case of FIG. 2, the memory area (A) 12 is used as a next event, and the memory areas (B) 13 and (C) 14 are used as storage areas for an on-air event. The event data 301 of the next event and the on-air event stored in these memory areas is supplied from the control data processing main unit 3 via the control unit 15.

Now, the case where the control data output from the automatic operation control data generation unit 4 is output to the control data processing main unit 3 through the switching unit 1 will be referred to as an automatic state. A case where the output control data is output to the control data processing main unit 3 through the switching unit 1 is referred to as a manual state.

In the automatic state, the memory area (A) 12 shown in FIG.
13 is used for on-air event data, the memory area (C) 14 receives the data of the memory area (B) 13 and converts the data of the memory area (C) 14 into on-air event data which is a part of the control data. Output to
In the automatic state, when the next event data is advanced to the on-air event data, the memory area (A) 12
Is copied to the memory area (B) 13 and the next next event data is set in the memory area (A) 12 to update the event data.

In the manual state, any of the memory areas can be used as on-air event data, and the contents of the data can be manually updated. In this case, there is no next event data. Therefore, if the data is manually updated in the manual state and then switched to the automatic state, the on-air event data is different before and after the switching.

Hereinafter, a case where the manual operation is performed will be described. The change of the on-air data at this time is that the memory area (C) 14 always has on-air data.
There are the following four types. (1) Memory area (C) 14
Only on-air event set (2) Memory area (B)
13 and an on-air event set with memory area (C) 15 (3) On-air event set with memory area (A) 12 and memory area (C) 14 (4) Memory area (A) 12, memory area (B) 13 and memory On-air event set at area (C) 14.

In the above four cases, the manual operation can be switched to the automatic operation so that the on-air event data does not change.

By the way, in the case of the above (1), the output of the event data from the control data processing main unit 3 is performed as follows.

In the automatic operation control data generator 5, an on-air event (event data having the same content as that manually operated) is set in the memory area (C) 14, and a next event is set in the memory area (A) 12.

Case (2). The automatic operation control data generator 5 sets an on-air event (event data having the same content as that manually operated) to the memory area (B) 13 and the memory area (C) 14, and to the memory area (A) 12. Set the next event. Further, a next event is set in the memory area (A) 12 in the manual operation control data generator 5.

 Case (3).

The operation is divided into the following two stages (3) -1 and (3) -2.

(3) -1 The data of the on-air event in the memory area (A) 12 is transferred to the memory area (B) 13, and the event data having the memory area (B) 13 as an on-air train instead of the memory area (A) 16 is automatically transmitted. Control data processing main unit 3 to operation control data generation unit 4 and manual operation control data generation unit 5
Output from The automatic operation control data generator 4 and the manual operation control data generator 5 both set a next event in the memory area (A) 12.

In the case of (4), since there is no free memory area in which the next data is to be set, the control data processing main unit 3 sends out the switching prohibition signal 303 so as to prohibit the switching from the manual operation to the automatic operation. Or overwriting the next event data in the memory area (A) 12 can be selected.

In any of the above four cases (1) to (4), the operation can be switched from manual operation to automatic operation so that the on-air image is not changed. The control data processing main unit 3 performs the processing based on the switching detection data 201 which is input and the data 301 is surely grasped.

〔The invention's effect〕

As described above, the present invention is provided with a switching detection unit that can reliably grasp the switching timing of automatic operation and manual operation,
By outputting the switching detection data to the control data processing main body, there is an effect that switching from manual operation to automatic operation can be performed without changing the image in the on-air state.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of a video synthesizing control device of the present invention, FIG. 2 is a block diagram of an automatic operation control data generator in the embodiment of FIG. 1, and FIG. 3 is a conventional video synthesizing control device. FIG. 1 switching unit 2, switching detection unit 3, 3a control data processing main unit 4, automatic operation control data generation unit 5, 5
Manual operation control data generation unit, 6 switching unit, 12 memory area (A), 13 memory area (B), 14 memory area (C), 15 control unit.

Claims (1)

(57) [Claims] A video synthesizing control device for generating a control signal for synthesizing a plurality of video signals, said plurality of video signals necessary for synthesizing a series of on-air video and next video to be successively projected. An automatic operation control data generation unit that receives event data including a next event and an on-air event that determine the control content related to the combination content and projection order, and outputs these event data as control data necessary for the synthesis by automatic operation; A manual operation control data generator that receives the event data and generates the control data by manual operation;
A switching unit for switching control data output from the automatic operation control data generation unit and the manual operation control data generation unit by a switching control signal received manually or from the outside and outputting switching information, and receiving the event data and the switching information, A switching detection unit that detects that a switching operation has been performed by the switching unit and outputs this state as switching detection data; and the event data, the switching control signal, and the automatic operation control data generation unit process only an on-air event. If so, a switching prohibition signal for prohibiting the switching from the manual operation to the automatic operation and a control signal for controlling the operation of the automatic operation control data generation unit are transmitted, and the switching output and the switching detection of the switching unit are performed. Control data that outputs on-air control data so as not to change the on-air image while receiving data Image synthesis control apparatus characterized by comprising a data processing main section.