KR100717460B1 - Setting apparatus and method for system identifier of multi-version system - Google Patents

Abstract

The present invention relates to an apparatus and method for setting a system identifier of a multivision system in a multi-vision system, in particular, in which an identifier of a multivision system can be automatically set according to a signal level input from another apparatus.

The apparatus for setting a system identifier of a multi-vision system according to the present invention comprises: video signal input means for outputting a video signal to a video signal line and outputting a status signal to a status signal line; The video signal is branched and output to each of the predetermined paths, the voltage level of the status signal is detected to set its own identifier, and the other status signal voltage is output to each of the predetermined paths, And a plurality of display devices for sequentially setting the drive and system identifiers.

Multi Vision, Monitor, PC, ID

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-

Brief Description of the Drawings Fig. 1 is a block diagram showing a system identifier setting apparatus of a conventional multi-vision system.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a system identifier setting apparatus for a multi-vision system.

3 is a diagram illustrating a state in which a system identifier is set in a multi-vision system according to an embodiment of the present invention.

4 is a flowchart illustrating a method of setting a system identifier of a multi-vision system according to an embodiment of the present invention.

Description of the Related Art

100 ... PC 110,120,130,140 ... display device

111 ... ADC 112 ... main control unit

113 ... DAC

The present invention relates to an apparatus and method for setting a system identifier of a multivision system in a multi-vision system, in particular, in which an identifier of a multivision system can be automatically set according to a signal level input from another apparatus.

Modern consumers are fond of increasing the size and slimness of display media. Therefore, we are researching display equipment that can realize large screen space such as LCD (Liquid Crystal Display), PDP (Plasma Display Panel) Development is being actively carried out. In addition, there is a surge in the demand for display equipment that can occupy a small space and realize a very large screen where many people, such as various stadiums, concert halls, exhibition rooms, airports and the like,

In order to cope with this situation, multi-vision has already been realized by using PDP, LCD, projector, CRT, etc., and various applications have been applied to real life and product display.

In general, a multi-vision system is a system for enlarging or reducing one image and outputting it to a screen. The multi-vision system is formed by connecting a plurality of video output means, and simultaneously, To be output. Since the multivision system includes a plurality of display devices, an identifier (ID) for identifying each display device is set.

1 is a block diagram showing a conventional multi-vision system.

A main control unit (MCU) 21 for receiving a video signal outputted from the computer 10 and displaying and driving the video signal, a computer 10 for outputting video signals R / G / B, H / V, And a plurality of monitors 20, 30, and 40, respectively.

Here, the video signal lines of the computer 10 are connected through a communication port (e.g., RS-232C) and include a color signal R / G / B, a synchronization signal H / V, . The video signal line is branched from the first display device 20 and supplied to the first and second display devices 20 and 30 and then branched to the second and third display devices 20 and 30, 20, and 30, respectively.

Such a multi-vision system can be a video signal input source such as a DVD, a VTR, a STB, a computer, and the like. In the display devices 20, 30 and 40, A zoom area is set, a unit size of the zoom area is provided, and the video signal of the zoom area is converted according to its own screen size and displayed.

Typically, the upper left corner has the highest priority, the lower right corner has the lowest priority, and the priority is determined from left to right depending on the arrangement of the display devices.

In such a conventional multi-vision system, in order to assign an identifier (ID) to each display device, the user must manually set the display device (system by system) in order using a remote controller or an on-screen display There is an inconvenience.

It is a first object of the present invention to provide an apparatus and method for setting a system identifier of a multivision system capable of automatically assigning an identifier for each display apparatus of a multivision system.

A second object of the present invention is to provide an apparatus and method for setting a system identifier of a multivision system in which a voltage level of a status signal transmitted from a video signal input source can be automatically set to an identifier of the system.

The system identifier setting apparatus of the multi-vision system according to the present invention comprises:

A video signal input means for outputting a video signal and a synchronization signal to a video signal line and outputting a status signal to a status signal line;

And outputting a different status signal voltage to each of the predetermined paths, and outputting the status signal voltage to each of the display drivers And a plurality of display devices for sequentially setting identifiers.

Preferably, the display device further includes: a signal distributor for dividing a video signal and a sync signal input from the video signal input means or another display device; a status signal detector for detecting a voltage level of the status signal; A main control unit for setting its own identifier using the voltage level detected by the detection unit and outputting the other status voltage signal to another display device and driving the display using the video signal and the synchronization signal; And a state signal output unit for converting the output other state voltage signal into an analog signal and outputting the analog signal.

According to another aspect of the present invention, there is provided a method of setting a system identifier of a multivision system, comprising: receiving a video signal, a synchronization signal and a status signal on different lines; Detecting a voltage level of the received status signal;

Setting a system identifier of the display apparatus according to the detected voltage level and transmitting a status signal voltage corresponding to a system identifier of another display apparatus of a predetermined path.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a block diagram illustrating a system identifier setting apparatus of the multivision system according to the present invention.

2, a computer 100 for outputting a video signal and a status signal to another line, a signal distributor (not shown) for dividing a video signal output from the computer 100 and outputting the video signal through a predetermined other path, A signal detector (ADC) 111 for converting a status signal voltage of the computer 100 into a digital signal, a controller 111 for setting its own system identifier according to the status signal converted into the digital signal, A main control unit 112 for outputting other status signals, and a control unit 112 for converting other status signals outputted from the main control unit 112 into analog signals and outputting them to other predetermined display apparatuses 110 to 120 and 120 to 130 And a plurality of display devices 110, 120, and 130 including a status signal output unit (DAC) 113.

The system identifier setting apparatus of the multi-vision system according to the present invention will now be described with reference to the accompanying drawings.

2, the video signal input source may include a terminal such as a DVD, a VTR, a STB, and a computer. The description will be limited to the computer 100 as a video signal input source for convenience of explanation.

The computer 100 outputs the video signals R / G / B and H / V and the status signal Vs, respectively. The video signal is branched and transmitted to the main control unit 112 of the first and second display devices 110 and 120 respectively and the second display device 120 branches the video signal to output the video signal to the second and third display devices 110 and 120. [ To the main control unit of the display device (120, 130). Here, the video signal may be branched using a signal distributor (not shown).

The status signal (Vs) output from the computer 100 is input to the first display device 110. The status signal detector (ADC) 111 of the first display device 110 converts the status signal into a digital signal and transmits the digital signal to the main control unit 112. The main control unit 112 receives the status signal from the status signal detector 111 The system identifier is set by using the status signal Vs detected by the system identifier. For this, the status signal Vs first applied to the computer 100 may be a voltage corresponding to the system identifier corresponding to the first display device having the highest priority or a voltage having the lowest priority system identifier. Or the system identifier may be determined by an agreed state signal voltage with a display device initially connected to the computer.

Here, in order to set a system identifier of another display apparatus, a specific display apparatus outputs a status signal voltage level corresponding to a system identifier one level lower or higher than the system identifier of the other display apparatus.

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By using the state signal voltage level applied from the computer 100, the system identifiers for other display devices sequentially connected in advance are automatically set, respectively, so that the first display device The system identifier of the second display device is set to # 2, the system identifier of the third display device is set to # 3, and the system identifier of the fourth display device is set to # 4 Can be set. In this manner, the system identifier of the multivision system is automatically set, thereby making it possible to provide convenience to the user.

4 is a flowchart illustrating a method of setting a system identifier of the multivision system according to the present invention. Referring to FIG. 4, in each of the display devices constituting the multivision system, a video signal and a status signal branched from a computer or other display device are input respectively (S101).

After the state signal voltage level Vs is detected in step S103, the detected state signal voltage Vs is compared with a voltage V1 corresponding to each system identifier in step S105. (ID = 1, 2, ..., n) (S107, S111, and S115), respectively, in the case of a voltage corresponding to the system identifier corresponding to itself.

When the system identifier is set, each display device outputs a different status signal voltage to another display device (S115), so that other display devices can set the system identifier continuously.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It can be implemented. The scope of the present invention is defined by the appended claims, and all differences within the scope of the claims are to be construed as being included in the present invention.

According to an apparatus and method for setting a system identifier of a multivision system according to the present invention, a system identifier corresponding to a system of the system is set using a status signal input from an input terminal or another display device, The system identifier of the other display device can be set so that it is possible to solve the inconvenience that the user has to separately set and solve many manipulation problems with respect to the multivision function.

Claims (3)

Video signal input means for outputting a video signal to a video signal line and outputting a status signal to a status signal line; And Receiving the video signal and outputting it to a predetermined path, detecting a voltage level of the status signal, setting an identifier of the video signal using the detected voltage level, and outputting a status signal voltage having a voltage level different from the status signal And outputting the image data to a predetermined path. A signal distributor for receiving and branching the video signal and the status signal, A status signal detector for detecting a voltage level of the status signal; and a status detector for setting its own identifier by using the voltage level detected by the status signal detector and outputting a status voltage signal having a voltage level different from that of the status signal to another display device A main control unit for performing display driving using the video signal and the synchronization signal, And a state signal output unit for converting another state voltage signal output from the main control unit into an analog signal and outputting the analog signal. Receiving a video signal and a status signal on different lines; Detecting a voltage level of the received status signal; And Setting its own system identifier using the detected voltage level and transmitting a status signal voltage corresponding to a system identifier of another display device of a predetermined path; And setting the system identifier of the multi-vision system.

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