JPH0259796A - Multi-video system - Google Patents

Abstract

PURPOSE:To produce common command data by supplying the command data supplied to each video board which controls each TV monitor in accordance with a picture producing program through a conversion table. CONSTITUTION:A conversion table 40A which is used for obtaining the same picture producing effect by means of common command data even when the arraying patterns of TV monitors 10 recognized by a user is different is provided. Therefore, even when the multi-screen arraying pattern is arbitrarily set in accordance with the desire or personality of an operator operating this multi-video system or a user preparing a picture producing program by means of this multi-video system, the command data formed by the picture producing program become the same to the same picture effect. Thus command data can be unified.

Description

[Detailed description of the invention] [Industrial application field] This invention aggregates a plurality of television monitors.

The present invention relates to a multi-video system in which a special image effect can be obtained by a composite image displayed on the television monitor.

[Summary of the invention]

The image position adjustment method in the multi-video system of the present invention involves arranging a plurality of television monitors adjacent to each other in the horizontal direction or vertically and horizontally, and adjusting the video signals supplied to each of the television monitors assembled in a plane. In a multi-video system that can display multiple images by controlling A conversion table is provided to enable command data of a multi-video system based on programs created by all users to be converted into common command data when producing the same image effect.

[Conventional technology]

Multi-video systems consisting of multiple screens are known to use slide films and video projects, but in recent years, multiple TV monitors have been arranged in a cubic stack, and each TV monitor A multi-video system that changes images under computer control has been put into practical use.

This multi-video system displays images directly on the TV monitor's cathode ray tube and can effectively produce various patterns of video screens, eliminating the need for a screen and providing sufficient image quality and brightness. Therefore, it has the advantage that it can give a strong impression to the viewers and there are no restrictions on the installation location.

[Problem that the invention seeks to solve]

However, since a multi-video screen is composed of multiple TV monitor screens arranged in a cubic pattern, the same order or pattern each user recognizes the arrangement of the TV monitors may result in the same display. The command data that produces the image effects will be different, making it difficult to unify the hardware of the multi-video system.

That is, as shown in FIG. 4(a), user A selects the top 9 screens in the upper left of the 16 multi-video screens as production screens A1 to A1.
Use as A9 and other inverted screen A IG"' A
Recognizing the IG as an information (commercial) screen and creating a picture, user B sequentially displays the array pattern number BI"B1 on the 16 multi-video screens as shown in FIG. 4(b).
6 may be added to recognize it as a multi-video screen and create a picture.

By the way, in such a case, if the hardware of the multi-video system is constructed according to the arrangement pattern recognized by user A and user B, for example, the command data that controls the production screen of each TV monitor will not produce the same image effect. The problem is that the programs that are generated are also different, and common command data cannot be used.

(Means for Solving the Problems) The present invention has been made in view of the above problems.
A conversion table is provided so that the same image presentation effect can be obtained using common command data even when the arrangement patterns (television monitor numbers) of the television monitors recognized by the user are different.

[Effect]

Even when the multi-screen arrangement pattern is arbitrarily set according to the wishes or individuality of the operator who operates the multi-video system or the user who creates the image presentation program using this multi-video system, the pattern created by the image presentation program cannot be changed. By providing a conversion table such that the command data for the same image effect is the same, the command data can be unified.

〔Example〕

FIG. 1 is a block diagram showing an overview of the multi-video system of the present invention. IO indicates a multi-video screen in which a plurality of TV monitors are assembled in a cubic shape. In this embodiment, 16 TV monitors (MT -1, MT-2, MT
-3...MT-16).

20 indicates the plurality of television monitors (MT-1゜MT-2
. . . ), and this video output section includes a plurality of video boards (VB-1, VB-1,
VB-2, VB-3-----VB-16) are stored.

This video board VB (1, 2, 3...16)
As will be described later, the system includes a memory means in which a video signal for at least one field of the television screen is stored, and the image data stored in the memory means is outputted from a control unit CPU provided in the video board. Cable II, 12.13
......116 to each TV monitor (MT-1
, MT-2, .

30 is each video board VB (1) of the video output section 20;
, 2, 3...16), and distributes video signals supplied from various video sources to each video board VB (1, 2, 3...16). This is a motherboard that distributes and supplies command signals for multiple video screens programmed to the control unit.

A command signal is supplied to the motherboard 30 from the system board 40, and this command signal is sent based on program data formed by the host computer 50.

Also, the motherboard 30 has an interface 70A or 7
TV broadcast images, reproduced video signals, graphics/character information from a graphic computer, videotex images, etc. are supplied via 0B.

The host computer 50 inputs data indicating the movement of images to be produced on a multi-video screen, program data for selecting the type of image, and setting the transmission time through the keyboard 60, and based on these program data. , command data is supplied from the system board 40 to the motherboard 30, and each video board V
The control unit B (1, 2, 3, . . . 16) is distributed to the control sections B (1, 2, 3, . . . 16).

Note that control signals are outputted from the system board 40 to a plurality of video sources, and the video displayed on the multi-video screen is also controlled.

FIG. 2 is a block diagram showing an overview of each video board VB (1, 2, 3...16) stored in the video output section 20, and each board has four channels of video. Source (A @B -C@D) and analog RG
A video signal consisting of a B signal, characters, and graphic information is input, and the type, timing, signal processing data, etc. of the video signal to be sent to the multi-video screen are input to the control circuit 29 as command data.

Reference numerals 21A, 21B, 21C, and 210 indicate video switchers; in particular, 21A and 21B indicate video switchers for selecting the 4-channel composite video signal, and 21D and 21E indicate video switchers on the output side.

The signal selected by the video switcher 21A is separated into a synchronization signal by a synchronization separation circuit 22A and sent to a decoder 23.
By inputting the signal to A, it is converted into, for example, a Y signal and a color difference signal.

These component video signals are sent to an A/D converter 24.
At 1, for example, the image data is converted into image data sampled at 4fSe and recorded in the memory 25. This memory 2
5 records image data for at least one field;
It is assumed that the memory can be read, and its contents can be sequentially rewritten by a write clock (address data) signal and a read address clock (address data) output from the memory control 26, as is well known.

27 is a D/A converter, 28 is an encoder, and normally encoded into an RGB video signal by this encoder, and passed through the video switcher 2IC, 210.
It will be supplied to the television monitor mentioned above.

Similarly, the composite video signal selected by the video switcher 21B is input to the decoder 23B via the synchronization separation circuit 22B, and after being converted into an RGB video signal by the decoder 23B, the composite video signal is sent to the video switcher.
It is designed so that it can be output via 2IC and 21D.

29 receives command data output from the aforementioned system board 40 via the motherboard 30, and serves as a video switcher 21A, 21B.

At the same time as controlling the opening/closing of 21C, the memory controller 2
6 shows a control circuit (CPU) that controls the image data stored in the memory 25 to be read out in accordance with the pattern of the multi-video screen by supplying a control signal to the memory 25.

The video effects realized by this control circuit 29, memory controller 26, and memory 25 include enlargement of a part of the screen, similar to a digital video effector (DVE),
It can perform reduction, special wipe, etc., and also has functions such as the output timing of image data and the ability to output still images.

By the way, in the case of the multi-video system of the present invention, the video boards VB (1, 2, 3...
. . 16) When the command data supplied to the controllers produce the same image, the system board 40 is provided with a conversion table 4OA for making the command data the same.

This conversion table 4OA is used for each TV monitor TM-1, TM-2...T of the multi-video system, for example.
For example, the array pattern of M-16 is set on the hardware as an array pattern number consisting of CI"CI6 as shown in FIG. 3(a), and the user recognizes and recognizes this array pattern (virtual image space). The command data is converted so that the array pattern of the multi-video screen that is currently available matches.

That is, user A, who recognizes the arrangement pattern shown in FIG. When Ii is set, the video board VB (1, 2, 3...
. . . 16) control units respectively include command data al, a2 . a3...
a16 will be supplied, but this command data a+, ala3...a16 is the conversion table 4
In OA, the above-mentioned Fig. 3C, which is considered to be a virtual image space,
&') is converted into multi-video screen enlargement command data corresponding to, for example, a1→cla2 +C2, a3
+C3, a4 → C5, a5 4C, b +H
””alo4CI3. all-"CI4 +11+.

In addition, when user B inputs program data that produces the same image effect from the multi-video screen arrangement pattern shown in FIG. 4(b), this program data Command data based on b1 * b 2 * b 3...
- is each video board VB (1, 2, 3...1
6), in FIG. 3(a), which is also considered to be the virtual image space of the multi-video system, bl-+c1b
2→C5*b3→C95b4→013..., and the video board VB (1
, 2, 3------16) (7) Memo! J 25 (
F) Generating a read control signal.

As a result, programs for the same image effect input by user A and user B use the same command data CI.
# C2* C3... Converted to C16.

For example, in the case described above, the image of CI3 in the virtual image space is enlarged and displayed as shown in FIG. 3(b).

This conversion table 40A is preferably provided on the system board 40 that receives program data output from the host computer 50 and outputs command data.
The memory (RAM) of the PU is used as a conversion table.

However, the conversion table may be provided in the control section on the motherboard side.

〔Effect of the invention〕

As explained above, in the multi-video system of the present invention, the command data supplied to each video board that controls each TV monitor by the image production program is supplied via the conversion table. This conversion table can be used to generate common command data even when the users operating the video system have different recognition of the arrangement pattern for the multi-video screen, and the hardware of the multi-video system can be It has the advantage that it can be shared.

In addition, since the hardware for each multi-video system can be shared, it is possible to reduce the cost of the multi-video system, and when the number of multiple screens increases or when each multi-video system is configured with multiple processors, the cost of the multi-video system can be reduced. This has the effect of making it possible to build with unified hardware.

It is a column pattern diagram.

In the figure, 10 is a multi-video screen, 20 is a video output section, 3
0 represents a motherboard, 40 represents a system board, 40A represents a command data conversion table, and 50 represents a host computer.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an overview of the multi-video system of the present invention, FIG. 2 is a block diagram showing an embodiment of the video board, and FIGS. 3(a) and (b) are block diagrams showing the outline of the multi-video system of the present invention. A wiring pattern diagram configured on the hardware and a partially enlarged multi-video screen diagram, Figure 4 (a),
(b) shows the layout of the multi-video screen recognized by User A and User B.

Claims (1)

[Claims] A plurality of memory means capable of storing video signals selected from a plurality of video sources, and a control section capable of reading out the video signals stored in the plurality of memory means as desired image signals. In a multi-video system comprising a plurality of video boards, the video signals output from the plurality of video boards are supplied to a plurality of television monitors whose display sections are arranged adjacent to each other. The present invention is characterized by comprising a command data conversion table that allows the arrangement pattern of each of the television monitors recognized by an operator operating the multi-video system to match the arrangement pattern of the hardware that constructs the multi-video system. Multi-video system.