JP2715461B2 - Multi video system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-video system in which a plurality of television monitors are assembled, and a special image effect is obtained by a composite image displayed by the television monitors. It is about.

[Summary of the Invention]

In the image position adjustment method in the multi-video system of the present invention, a plurality of television monitors are arranged adjacent to each other in the horizontal direction or in the vertical and horizontal directions, and a video signal supplied to each of the planarly grouped television monitors is adjusted. In a multi-video system capable of displaying multi-images by controlling, an array pattern of a television monitor recognized by an operator operating the multi-video system matches an array pattern of hardware configuring the multi-video system. A conversion table is provided so that command data of a multi-video system based on a program created by all users is converted to common command data when producing the same image effect.

[Conventional technology]

As a multi-image system composed of a plurality of screens, a system using a slide film and a system using a video project are known. In recent years, a plurality of television monitors are stacked and arranged in a cubic shape, and each television monitor is arranged. A multi-image system for changing an image by computer control has been put to practical use.

This multi-video system can display images directly on the CRT of a TV monitor and effectively produce video screens of various patterns, eliminating the need for a screen and having sufficient image quality and brightness. Therefore, there is an advantage that a strong impression can be given to the viewer and the installation place is not restricted.

[Problems to be solved by the invention]

However, since a multi-video screen is composed of a plurality of television monitor screens arranged in a cubic manner, the same arrangement is performed by each user in accordance with the order or pattern of each television monitor. The command data that produces the image effect will be different, making it difficult to unify the hardware of the multi-video system.

That is, the user A directs 9 side of the upper left with respect to the multi-image screen 16 surface as shown in FIG. 4 (a) Screen A ₁ to A ₉
Use as performs making picture by recognizing the screen A ₁₀ to A ₁₆ of the other inverted L-shaped as information (commercial) screen, the user B
In some cases you want to picture generation recognized as a multi-image screen by adding sequentially arranged pattern number B ₁ .about.B ₁₆ in the multi-picture screen 16 surface as shown in FIG. 4 (b).

By the way, in such a case, if hardware is constructed according to an array pattern recognized by the user A and the user B in the multi-video system, for example, command data for controlling the effect screen of each television monitor is:
Even if the program produces the same image effect, the program is different, and there is a problem that common command data cannot be used.

[Means for solving the problem]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problem, and enables the same command data to produce the same image effect even when the TV monitor arrangement pattern (TV monitor number) recognized by the user is different. A conversion table is provided.

[Action]

According to an operator who operates the multi-image system or a user who creates an image effect program by the multi-image system, even if an arrangement pattern of the multi-screen is arbitrarily set, the image effect program is formed by the image effect program. By providing such a conversion table that the same command data is the same for the same image effect, the command data can be unified.

〔Example〕

FIG. 1 is a block diagram showing the outline of a multi-video system according to the present invention, in which reference numeral 10 denotes a multi-video screen in which a plurality of TV monitors are assembled in a cubic manner. -1, MT-2, MT-3 ... MT-
16).

20 is the plurality of television monitors (MT-1, MT-2 ...)
, A video output section for supplying a video signal and a synchronization signal to the video monitor, and a plurality of video boards (VB-1, VB-2, VB-3...
-16) is stored.

The video board VB (1, 2, 3,..., 16) has a memory means for storing a video signal for at least one field of a television screen, as will be described later, and a video data stored in the memory means. reading in various forms by a control signal output from the control unit CPU which is provided in the board, the cable 1 _1, 1 _2, 1 ₃ ...... 1 ₁₆ via a respective television monitor (MT-1, MT-2 .., MT-16), image effects such as enlargement, reduction, and composition of images can be obtained on the multi-image screen 10.

Reference numeral 30 denotes each video board VB (1, 2, 3) of the video output unit 20.
... 16), video signals supplied from various video sources are distributed, and each video board VB (1, 2,
This is a motherboard that distributes and supplies command signals for multi-image screens programmed to the control unit 3) ... 16).

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

The motherboard 30 is supplied with a TV broadcast image, a reproduced video signal, graphic / character information of a graphic computer, a videotex image, and the like via the interface 70A or 70B.

The host computer 50 inputs data indicating the movement of the image produced by the multi-video screen, the type of the image, and program data for setting the transmission time via the keyboard 60, based on the program data. , Command data is supplied from the system board 40 to the motherboard 30, and further, each video board VB (1,
2,3 ... 16) are distributed to the control units.

It should be noted that control signals are output 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 outline of each video board VB (1, 2, 3,..., 16) stored in the video output unit 20, and each board has a 4-channel video source (A).
B, C, D) and video signals consisting of analog RGB signals, characters, and graphic information are input, and the type, timing, signal processing data, etc. of video signals to be sent to the multi-video screen are sent to the control circuit 29. Is input as command data.

21A, 21B, 21C and 21D indicate video switchers, in particular 21
A and 21B denote video switchers for selecting the four-channel composite video signal, and 21D and 21E denote output side video switchers.

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

These component video signals are converted into image data sampled by, for example, 4f _SC in the A / D converter 24 and recorded in the memory 25. The memory 25 is capable of recording and reading image data of at least one field. As is well known, a write clock (address data) signal output from a memory control 26 and a read address clock ( The contents are sequentially rewritten by (address data).

Reference numeral 27 denotes a D / A converter, and reference numeral 28 denotes an encoder. Normally, the encoder encodes an RGB video signal and supplies the RGB video signal to the above-described television monitor via the video switchers 21C and 21D.

Similarly, the composite video signal selected by the video switcher 21B is also input to the decoder 23B via the sync separation circuit 22B, and is converted into an RGB video signal by the decoder 23B, and then is converted via the video switchers 21C and 21D. Output has been made possible.

29 receives the command data output from the system board 40 described above via the motherboard 30, controls the opening and closing of the video switchers 21A, 21B, 21C, and at the same time, supplies a control signal to the memory controller 26 and stores it in the memory 25. Control circuit (CPU) that controls the read out image data in accordance with the pattern of the multi-image screen
Is shown.

The control circuit 29, the memory controller 26 and the memory 25
The video effect realized by the camera is that, like a digital video effector (DVE), it is possible to enlarge, reduce, and specially wipe a part of the screen.
It has a function of outputting image data and a function of outputting a still image.

By the way, in the case of the multi-video system of the present invention, the command data supplied to the video board VB (1, 2, 3,... 16) is the same based on the image rendering program output from the host computer 50. Is produced, the conversion table 40A for providing the same command data is provided on the system board 40.

The conversion table 40A, for example, each TV monitor TM-1, the arrangement pattern of the TM-2 ...... TM16 multi image system for example, a C ₁ -C _16, as shown in FIG. 3 (a) arrangement pattern Set on the hardware as a number,
The command data is converted so that the arrangement pattern (virtual image space) matches the arrangement pattern of the multi-image screen recognized by the user.

That is, user A knows the arrangement pattern of FIG. 4 described above (a) inputs the program to expand the screen image A ₁₀ across the multi-image screen to the host computer, for example, And was the case, the control unit of the video board VB (1,2,3 ...... 16) for supplying a video signal to each of the television monitor A ₁ to A _10, respectively, command data a ₁ to expand the screen A _10,
a _2, a ₃ but ...... a ₁₆ will be supplied in the command data _{a 1, a 2, a 3} ...... a 16 conversion table 40A, the third drawing, which is a virtual image space The command is converted into enlarged command data of the multi-image screen corresponding to (a). For example, a ₁ → c ₁ , a ₂ → c ₂ , a ₃ → c ₃ , a ₄ → c ₅ , a ₅ → c ₆ ... a ₁₀ →
c ₁₃ , a ₁₁ → c ₁₄ ...

Also, program data for generating the same image effect input by the user B from the arrangement pattern of the multi-image screen shown in FIG. Is input, the command data b ₁ , b ₂ , b ₃ ... Based on the program data is transmitted to each video board VB (1, 2,
In FIG. 3 (a), which is also the virtual image space of the multi-video system for 3 ... 16), b ₁ → c ₁ , b
₂ → c ₅ , b ₃ → c ₉ , b ₄ → C ₁₃ ... And generates a read control signal for the memory 25 of the video board VB (1,2,3... 16) of the multi-video system.

As a result, the programs for the same image effect input by the user A and the user B have the same command data.
c ₁ , c ₂ , c ₃ ... c _16. For example, in the case described above, the image of C _{13 in} the virtual image space is enlarged and displayed as shown in FIG. Become.

This conversion table 40A is usually stored in the host computer 5
The program data output from 0 is preferably provided on a system board 40 from which command data is output, and a memory (RAM) of a CPU provided on the system board 40 is used as a conversion table.

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

〔The invention's effect〕

As described above, in the multi-video system of the present invention, the command data supplied to each video board that controls each television monitor by the image rendering program is supplied via the conversion table. This conversion table can be used to generate common command data even when the user who operates the video system has a different recognition of the array pattern for the multi-video screen. There is an advantage that they can be shared.

Also, since the hardware of each multi-video system can be shared, the cost of the multi-video system can be reduced, and when the number of multi-screens increases or when each multi-video system is formed by a plurality of processors, There is an effect that it is possible to construct with unified hardware.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of a multi video system of the present invention, FIG. 2 is a block diagram showing an embodiment of a video board, and FIGS. 4 (a), a wiring pattern diagram configured on hardware and a partially enlarged multi-image screen diagram
(B) is an arrangement pattern diagram of a multi-image screen recognized by users A and B. In the figure, 10 is a multi-image screen, 20 is a video output unit, 30 is a motherboard, 40 is a system board, 40A is a command data conversion table, and 50 is a host computer.

Continuation of the front page (72) Inventor Yoshiyuki Furushima 6-7-35 Kita Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (56) References JP-A-59-2076 (JP, A) JP-A-57- 204685 (JP, A) JP-A-60-254226 (JP, A) JP-A-60-116006 (JP, A)

Claims (1)

(57) [Claims] 1. A plurality of memory means capable of storing a video signal selected from a plurality of video sources, and a video signal stored in the plurality of memory means can be read out as a desired image signal. A multi-video system including a plurality of video boards including a control unit, and supplying a video signal output from the plurality of video boards to a plurality of television monitors arranged such that display units are adjacent to each other. A command data conversion table capable of matching an array pattern of each of the television monitors recognized by an operator operating the multi-image system with an array pattern of hardware configuring the multi-image system is provided. A multi-image system, characterized in that: