KR100259677B1 - Control method of multi-display device by 1 cpu - Google Patents

Abstract

PURPOSE: A method for controlling many display media is provided to output/maintain an independent content of each display medium by using one CPU. CONSTITUTION: It is determined that a registered file is displayed or a successive input data is displayed, or a mixed type management is performed. If a mode for displaying a pre-registered file is selected, an advertisement/guide sentence or graphic is made by using an editor, and then a file name is input. The number of display media displayed in an applicatio program is compared with the number of registered files. If the number of display media is larger than the number of registered file, a file is displayed one by one on the display media in order of file input. The file is repeatedly displayed on a residual display media. If the number of display media is smaller than the number of registered files, a file (by the number of media - 1) is displayed on the display media, the residual files are displayed on the last display media by a predetermined time.

Description

How to control multiple display media with one CPU {Control method of multi-display device by 1 CPU}

The present invention is a control device for displaying images and characters by connecting a plurality of display media (TV, A / V monitor, PC monitor, LCD, etc.) with a single CPU, each independent content to each display medium The present invention relates to an apparatus and method for controlling multiple display media with one CPU that can be transmitted and used as a guide medium for various contents.

In general, the current display device displays only the same screen as the PC screen even when a TV, an A / V monitor or a PC monitor is connected to one CPU or a PC, or a plurality of display media are connected using a splitter. Incorrect contents could not be displayed on the display media.

In other words, even if a TV card is installed in a PC, even if a splitter is applied using the video signal of a video graphics card installed in each PC, only the PC screen is displayed, and a LAN that uses a client / server concept using a LAN card is used. Even when the equipment is constructed, it is essential to install the transmission / reception control unit in each PC for data input / output through it.

It is also operated by a program request, so both sender and receiver need their own independent CPUs (only PC monitors are available).

In order to completely solve this problem, the present invention sequentially outputs a video signal to each video signal processing unit in one CPU and uses each memory unit independently in each video signal to continuously output the stored video signals. The purpose of the present invention is to provide a control method of outputting each independent content to a plurality of display media with one CPU.

In order to achieve the above object, the present invention sequentially outputs a video signal to each video signal processing unit in one CPU, and uses each memory unit independently in each video signal unit to continuously output the stored video signal. Since the screen is maintained, a single CPU can display / maintain each independent content on a plurality of display media.

1 is a device installation configuration according to an embodiment of the present invention,

2 is an operation structure diagram according to an embodiment of the present invention,

3 is a flowchart of Mode 1 of a control unit for implementing the present invention;

4 is a flowchart of Mode 2 of a control unit for implementing the present invention;

5 is a flowchart of Mode 3 of a control unit for implementing the present invention.

Description of the main parts of the drawing

1: PC interface unit 2: Latch unit

3: monitor selector 4, 8, 12: video signal processor

5, 9, 13: Screen storage memory 6, 10, 14: Video signal D / A converter

7,11,15: Monitor connection

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the operation of the present invention will be described with reference to FIGS. 1 to 5.

As shown in FIG. 1, each monitor (1 to n) is provided at a terminal configured as an internal or external box in an internal I / O slot of a PC so that a plurality of display media can be controlled by receiving processing data from an application program and a personal computer. ) Is connected.

If you operate the device in the above state. Run the application to get the advertising and public guidance you want.

When the execution procedure of the application program is executed, a message is output (16) asking whether to display a registered file, display continuously input data, or operate a mixed type.

If you select No.1 among 16 messages, it operates in the mode of displaying the registered file.

To operate in the first mode, use the editor (Bahah Hangul, POINT BRUSH, and other graphic tools) to create advertisements / letters and graphics, save them as separate files, and then enter the file names (17).

Compare the number of display media and the number of registered files that can be displayed in an application program (18) .If the number of display media ports is large, display one file on one display medium in the order of file input (19), and display the remaining display medium. The file is repeatedly displayed at regular time intervals (20).

However, if the number of files registered in step 18 is large, the number of files corresponding to the number of display media-1 is displayed one by one on one display medium (21), and the remaining files are repeatedly displayed on the last display medium by a predetermined time (22). ).

The mode can be terminated at any time by pressing the 'ESC' key on the PC.

If mode 2 is selected in step 16, the display medium indication constant 'MON-NUM' is initialized to point to the first display medium (23), and the text or graphic is edited to press the 'F10' key. Display the screen on the first display medium indicated by the display medium indicator (24)

The application program increases the 'MON-NUM' constant (25), compares the 'MON-NUM' constant with the number of connected display media (26), and repeats (24, 25) if the number of connected display media is large.

If the 'MON-NUM' constant is greater than the number of display media connected to the device in step 26, the 'MON-NUM' constant is reset to 1 (27), and the operation of step 24 starts from the first display medium connected to the device. Display the result. Even in mode 2, pressing the 'ESC' key ends the situation at any time.

On the other hand, in step 16, when selecting the 'mode 3', that is, the mixed mode, a message for inputting a file name to be displayed is output (28), and the display medium connected to the device at the same time after searching for the input '*' in the program Compare the number of files entered with the number.

If the number of connected display media is larger than the number of files input, display one file on one display medium in the order of file input (29), and after displaying all the input files on the display medium, the display medium indication constant is' Number of files + 1 Initialize to '(30).

If the user presses the 'F10' key after editing text or graphic, the screen is displayed on the display medium indicated by 'MON-NUM' (31).

And increase the 'MON-NUM' constant to compare the 'MON-NUM' and the number of monitors (36).

If the number of display media connected in step 36 is greater than 'MON-NUM', step 31 is returned.

However, if the number of display media connected in step 36 is smaller than 'MON-NUM', it is determined whether to continue with step 31 (37), and if you want to perform step 31, replace 'MON-NUM' with 'file + 1'. Initialize and continue executing the routine below from step 31.

When comparing the number of display media and the number of input files, if the number of display media is smaller than the number of files input by the message, the number of 'display medium number-2' files are displayed one by one on one display medium in sequence ( 33) On the display medium of the number of display media-1, the remaining files which are not currently displayed on the display medium are repeatedly displayed for a predetermined time (34), and edited to display the corresponding screen by pressing the 'F10' key (35). ). In mode 3, pressing the 'ESC' key ends the situation at any time.

Therefore, the screen output by executing in each mode of the coalescing program is the 'MON-NUM' constant of the contents output through the PC interface unit 1 of FIG. 2, the display medium selection unit 3 can select the corresponding display medium Data, and the screen outputted from the PC to the device by the application program is input to the video signal processing units 4, 8, and 12 through the latch unit 2 into the corresponding display medium control unit. 5, 9, and 13 stores an address and records and stores data.

The video signal D / A converters 6, 10 and 14 convert the digital signals into analog signals so that the display medium connectors 7, 11 and 15 are not erased by the video signal processor. The screen is provided to the display media (1, 2, N).

As described above, in the present invention, since there was only one display medium control unit in the related art, and there was no separate memory device capable of storing screens, the screen was continuously provided by the CPU. Although it could not be controlled by one CPU, the present invention can output / maintain each independent content to a plurality of display media by one CPU.

In addition, various display methods can be produced by providing various types of programs such as mode 1, mode 2, and mode 3.

Claims (3)

Selecting whether to display a registered file, display continuously input data, or operate in a mixed format; When selecting a mode for displaying a file registered in the selection step, creating an advertisement / guide text and graphics using an editor (Bahah Hangul, POINT BRUSH, and other graphic tools), saving each as a different file, and then entering a file name. ; Comparing the number of display media and the number of registered files that can be displayed in the application program; If the number of display medium ports is greater than the number of registered files, displaying one file on one display medium in file input order; Repeatedly displaying the file on the remaining display medium at regular time intervals; And If the number of display media ports is less than the number of registered files, displaying the number of files of Display Media-1 by one file on one display medium in order, and repeatedly displaying the remaining files on the last display medium for a predetermined time. To control multiple display media with one CPU. The method of claim 1, wherein the step of selecting whether to display the registered file or to display data continuously input or to operate in a mixed form, When selecting the continuous input data display, initializing the display medium indicating constant 'MON-NUM' to point to the first display medium; Editing the text or graphic and pressing the 'F10' key to display a corresponding screen on the first display medium indicated by the display medium indicator constant; The application program increases the 'MON-NUM' constant and compares the 'MON-NUM' constant with the number of connected display media; If the number of connected display media is greater than the 'MON-NUM' constant, press 'F10' key after editing text or graphic and display the screen on the first display media indicated by the display medium's constant and increase the 'MON-NUM' constant. Repeating the step of making; And If the number of connected display media is smaller than the 'MON-NUM' constant, the method comprising the step of resetting the 'MON-NUM' constant to 1 again. The method of claim 1, wherein the step of selecting whether to display the registered file or to display data continuously input or to operate in a mixed form, Outputting a message for inputting a file name to be displayed when a mixed mode for displaying a registered file and selecting continuous input data is selected; Searching for the input '*' in the program and comparing the number of input files with the number of display media connected to the device at the same time as the input; If the number of connected display media is larger than the number of input files, display one file on one display media in order of file input, display all the input files on the display media, and then change the display media indication constant to 'number of files + 1'. Initializing; Displaying a screen on a display medium indicated by 'MON-NUM' by pressing the 'F10' key by editing text or graphics; Increasing the 'MON-NUM' constant to compare 'MON-NUM' with the number of monitors; If the number of connected display media is greater than 'MON-NUM' in the comparison step, the process returns to the editing and screen display stage. If the number of connected display media is smaller than 'MON-NUM', whether to continue the editing and screen display stage is determined. Judging; Initializing 'MON-NUM' to 'File + 1' when performing the editing and screen display steps, and continuing the following routine from the editing and screen display step; And When comparing the number of display media and the number of input files, if the number of display media is smaller than the number of files input by the message, display the number of 'display medium number-2' files one by one on the display media in order, And displaying the remaining files which are not currently displayed on the display medium repeatedly for a predetermined time in the display medium number-1'th display medium, and editing and pressing the 'F10' key to display a corresponding screen. To control multiple display media with one CPU.