KR20020008595A - Method and apparatus for controling a computer - Google Patents

Abstract

PURPOSE: An apparatus for controlling a one-board computer and a method therefor are provided so that a production cost can be cut down by reducing redundant parts by replacing devices on a monitor board by devices on a logic board. CONSTITUTION: A logic board(100) includes a central processing unit(110) for reading a horizontal/vertical synchronous signal from a display control unit(120), deciding a resolution, reading resolution information from a storing medium(140), and directly outputting the information to a horizontal/vertical processor(220) of a monitor board(200), a display control unit(120) for outputting R, G and B signals to a video output circuit(210) of the monitor board(200) according to a control signal from the central processing unit(110), and a storing medium(140) for storing the resolution information. The monitor board(200) includes the horizontal/vertical processor(220) for outputting the resolution information from the central processing unit(110) to the video output circuit(210), and a video output circuit(210) for displaying the R, G and B signals from the display control unit(120) to a display unit according to the resolution set up by the horizontal/vertical processor(220).

Description

Control apparatus and method of an integrated computer {Method and apparatus for controling a computer}

The present invention relates to an apparatus and method for controlling an integrated computer, and more particularly, to an apparatus and method for controlling an integrated computer in which a device on a monitor board can be replaced by devices on a logic board of the integrated computer.

Existing computers transmit computer signals to the monitors through various wires with the main body of the computer and the display device being separated.

Recently, however, the computer main body and the display device are composed of a single device, which is called an integrated computer.

The integrated computer is integrated in appearance, but the internal structure of the main body and the monitor board of the monitor are separately configured as in the conventional computer. More specifically, it is as follows.

1 is an internal block diagram of an integrated computer according to the prior art.

The logic board 10 includes a central processing unit (hereinafter, abbreviated as CPU) (11) for processing display data, a display control unit 12 for sending display data to the monitor board 20, and other peripherals. The apparatus 13 is comprised.

Then, the monitor board 20 determines the resolution when a horizontal / vertical synchronization signal among the display data is input, reads the resolution information from the EEPROM 22, and the EEPROM 22 that stores the resolution information. When the resolution information is input from the microcomputer 21, the horizontal / vertical processor 23 is set to fit the monitor, and when the R, G, and B signals of the display data are input, the horizontal / vertical processor 23 outputs it. It consists of a video output circuit 24 and a display unit (CRT) for displaying at one resolution.

In the conventional integrated computer configured as described above, the CPU 11 controls the display data of the display control unit 12 to be output, and the display control unit 12 outputs the horizontal / vertical synchronization signal to the microcomputer 21 of the monitor board. The video output circuit 24 outputs R, G, and B signals.

The microcomputer 21 determines the resolution according to the frequency of the input horizontal / vertical synchronization signal, and reads information about the resolution from the storage medium EEPROM 22 and outputs the resolution information to the horizontal / vertical processor 23.

When the R, G, and B signals are input from the display control unit 12, the video output circuit 24 displays the same on the display unit CRT according to the resolution output from the horizontal / vertical processor 23.

If the microcomputer 21 needs an on-screen display function, the OSD IC 25 is controlled to send a signal to the video output circuit 24 to produce an OSD screen.

As described above, the conventional integrated computer includes the CPU 11 and the storage medium on the logic board 10, and the microcomputer 21 and the EEPROM 22 having the same function in the monitor board 20.

That is, the unused pins of the CPU on the logic board can be used to perform the functions of the microcomputer on the monitor board, and the unused storage medium on the logic board can be used to replace the EEPROM on the monitor board. Because there is a duplicate use of parts that can function the same, there was a problem that the production process is expensive.

Accordingly, an object of the present invention is to perform the function of the microcomputer of the monitor board to solve the above-mentioned problems in the CPU of the logic board, and use another storage medium in the logic board instead of EEPROM, which is a storage medium of the monitor board, By using an application program instead of an OSD IC of a monitor board, the present invention provides an integrated computer control device and method that can reduce costs since various components are not used.

1 is an internal block diagram of an integrated computer according to the prior art;

2 is an internal block diagram showing an embodiment of a control device of an integrated computer according to the present invention;

3 is a flowchart illustrating a control method of an integrated computer according to the present invention.

* Description of Signs of Main Parts of Drawings *

10: logic board 11: CPU

12: display control unit 13: peripheral device

20: monitor board 21: microcomputer

22: EEPROM 23: Horizontal / Vertical Processor

24: video output circuit 25: OSD IC

100: logic board 110: CPU

120: display control unit 130: peripheral device

140: storage medium 200: monitor board

210: video output circuit 220: horizontal / vertical processor

300: OSD application CRT: display unit

In the integrated computer control apparatus according to the present invention for achieving the above object, the device of the present invention reads the horizontal / vertical synchronization signal from the display control unit to determine the resolution, and read the information on the resolution from the storage medium CPU that directly outputs to the horizontal / vertical processor of the monitor board, a display control unit that outputs R, G, and B signals to the video output circuit of the monitor board according to the control signal of the CPU, and a storage medium storing information about the resolution. A logic board consisting of; A horizontal / vertical processor for controlling an image signal to be displayed according to the information of the resolution output from the CPU; The monitor board comprises a video output circuit for displaying the R, G, B signals output from the display control unit to match the resolution set by the horizontal / vertical processor.

In addition, the control method of the integrated computer according to the present invention includes (1) initializing the display driver when the power is turned on, and (2) the CPU determines the resolution according to the frequency of the horizontal / vertical synchronization signal read from the display controller. And (3) the CPU controlling the display data such as R, G, and B signals to be output from the display control unit, and outputting the resolution information to the horizontal / vertical processor. (5) the horizontal / vertical processor outputs information about the resolution to the video output circuit, (6) the display control unit outputs the R, G, and B signals to the video output circuit, and (7) the video output. The circuit may include displaying information on the R, G, and B signals and resolutions in the steps (5) and (6) on the display unit; (8) When the CPU inputs a signal for performing the on-screen display function, the CPU executes an OSD application program and outputs it to the video output circuit.

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

2 is an internal block diagram of an integrated computer according to the present invention.

The logic board 100 reads the horizontal / vertical synchronization signal from the display control unit 120 to determine the resolution, and reads information about the resolution from the storage medium 140 to display the horizontal / vertical processor 220 of the monitor board 200. CPU 110 directly outputting to the display, and the display control unit 120 for outputting the R, G, B signal to the video output circuit 210 of the monitor board 200 in accordance with the control signal of the CPU 110, It consists of a storage medium 140 that stores information about the resolution.

The storage medium 140 uses devices such as a disk on chip (DOC), a flash memory, and a hard disk driver in a logic board.

The monitor board 200 includes a horizontal / vertical processor 220 for outputting the resolution information output from the CPU 110 to the video output circuit 210, and R, G, and B signals output from the display controller 120. Is configured as a video output circuit 210 to display on the display unit (CRT) to match the resolution set by the horizontal / vertical processor 220.

In addition, the OSD application program 300 is used to perform the on-screen display function.

The operation of the integrated computer control apparatus and method according to the present invention configured as described above will be described in more detail with reference to FIG. 3.

3 is a flowchart illustrating a control method of an integrated computer according to the present invention.

First, when the power is turned on (S10), the display driver is initialized (S20).

The CPU 110 determines the resolution according to the frequency of the horizontal / vertical synchronization signal among the display data (S30), and reads information about the resolution from the storage medium 140 (S40). The resolution information is output to the horizontal / vertical processor 220, and the display controller 120 controls to output the R, G, and B signals (S50).

The display controller 120 sends the R, G, and B signals to the video output circuit 210 (S60). Then, the video output circuit 210 displays an image signal on the display unit CRT in accordance with the resolution input from the horizontal / vertical processor 220 (S70).

And, if you want to perform the on-screen display function, use the OSD application program. Therefore, when the OSD application program execution signal is input (S80), the CPU 110 outputs the OSD signal to the video output circuit 210 to make an OSD screen (S90).

Therefore, in the present invention, the resolution and OSD signal processing according to the horizontal / vertical synchronization signal performed by the microcomputer on the monitor board are processed by the CPU on the logic board, and the logic board instead of the EEPROM, which is a storage medium on the monitor board. By using a storage medium and using an OSD application program instead of an OSD IC of a monitor board, all functions can be performed without the microcomputer, EEPROM, and OSD IC on the monitor board.

According to the control apparatus and method of the integrated computer according to the present invention as described above, by replacing the devices on the monitor board with the devices on the logic board, it reduces the overlapping portion to provide a cost saving effect.

Claims (4)

The CPU reads the horizontal / vertical sync signal from the display control unit to determine the resolution, reads the resolution information from the storage medium, and outputs the information directly to the horizontal / vertical processor of the monitor board; and R and G according to the control signal of the CPU. A logic board comprising a display control unit for outputting a B signal to a video output circuit of the monitor board, and a storage medium storing information about a resolution; A horizontal / vertical processor for controlling an image signal to be displayed according to the information of the resolution output from the CPU; And a monitor board comprising video output circuits for displaying the R, G, and B signals output from the display controller to the display unit so as to match the resolution set by the horizontal / vertical processor. The method of claim 1, wherein the storage medium, At least one of a disk on chip (Flash On Chip), a flash memory or a hard disk driver. The method of claim 1, wherein the CPU, And a stored on-screen display application for executing the on-screen display function. (1) initializing the display driver when the power is turned on; (2) the CPU determining the resolution according to the frequency of the horizontal / vertical synchronous signal read from the display control unit, and reading the resolution information from the storage medium; (3) the CPU controls the display data R, G, and B signals to be output from the display controller, and outputs the resolution information to the horizontal / vertical processor; (5) the horizontal / vertical processor outputs information about the resolution to the video output circuit, (6) the display controller outputs the R, G, and B signals to the video output circuit; (7) the video output circuit displaying the R, G, B signals and the resolution information when the information is input in steps 5 and 6; And (8) a CPU, when a signal for performing an on-screen display function is input, executing an OSD application program and outputting it to the video output circuit.