KR100296350B1 - System and method for managing signals using osd - Google Patents

Abstract

The present invention relates to an apparatus and method for managing a signal using an OSD, and when a signal management switch using an OSD is selected, an input signal for determining whether there is a signal input to the display monitor. An all check step of checking all signals inputted when it is determined that there is an input signal (Signal) in the presence or absence determination step of the signal and the determination whether or not the input signal (Signal); OSD data transmission step for transmitting the signal (Signal) detected in the All check step, and when the OSD data is transmitted to the OSD circuit in the OSD data transmission step, the transmitted OSD data is processed and applied to the CRT for display Configure the OSD data display step, and use the OSD function on the display monitor to receive and process various signals to determine whether the signals are connected. Is an effect that it is possible to manage more efficiently the signal management is in accordance with the Sikkim.

Description

Signal management device and method using OSD

The present invention relates to an apparatus and method for managing a signal using an OSD. An on-screen display displays a signal currently being input so that a user can recognize many signals transmitted to a display monitor. The present invention relates to a signal management apparatus and method for displaying using an OSD function.

Recently, multimedia computers processing various signals have emerged, and multimedia computers manage and execute functions of existing audio and TV. Data executed on a multimedia computer is transmitted to the peripheral at a faster rate, thereby maintaining the hardware function corresponding to the peripheral as well.

In particular, the function of the display monitor to display the data generated from the multimedia computer has emerged as an important factor due to the multimedia of the computer. The function of such a display monitor will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 1, a main body 100 of a multimedia computer includes a CPU for outputting a video control signal and a sound control signal to execute a program having image data and sound data and to output data according to the result of execution. 110, a horizontal synchronizing signal H-SYNC for receiving the data and the video control signal output from the CPU 110 and synchronizing the image signals R, G, B and the image signals R, G, B, and The video card 120 outputs the vertical synchronization signal V-SYNC, and the sound card 130 receives sound control signals output from the CPU 110 and processes sound data to output sound signals. .

The display monitor 200 that receives and outputs image signals R, G, and B or a sound signal output from the main body 100 of the multimedia computer having such a configuration is horizontal and vertical output from the video card 120. The synchronization signal (H-SYNC) (V-SYNC) is applied from the microcomputer 210 to determine the video signal (R, G, B) mode and outputs a reference oscillation signal. The reference oscillation signal output from the microcomputer 210 is applied by the horizontal and vertical circuit stages 220 to generate horizontal and vertical sawtooth wave currents in the deflection yoke DY.

The video signals R, G, and B output from the video card 120 are received by the video preamplifier 230, amplified to a predetermined level, and applied to the video main amplifier 240. The video main amplifier 240 receiving the amplified video signals R, G, and B at a predetermined level sufficiently amplifies the applied video signals R, G, and B and supplies them to the CRT. The CRT supplied with the image signals R, G, and B displays an image by determining the scanning period according to the period of the horizontal and vertical sawtooth wave currents formed in the deflection oak DY.

In addition, the sound signal SOUND output from the sound card 130 of the main body 100 of the multimedia computer is amplified by the sound preamplifier 250 to a predetermined level and output to the sound main amplifier 260. The sound main amplifier 260 receiving the sound signal SOUND amplified to a predetermined level sufficiently amplifies the sound signal SOUND amplified to a predetermined level and supplies the amplified sound signal SOUND to the speaker SP. The speaker SP, which is supplied with a sufficiently amplified sound signal SOUND through the sound main amplifier 260, outputs the supplied sound signal SOUND as an audible range of sound, so that the sound of the main body 100 of the multimedia computer 100 is sounded. The sound data generated by the card 130 is output.

In such a conventional display monitor, a signal for controlling various display monitors is applied, and a large amount of data output from a main body of a multimedia computer is received and processed. In particular, a display monitor that receives a plurality of signals such as a multimedia computer or a VTR or a TV is widely used. Among these signals, wide display monitors that display signals output from multimedia computers, VTRs, TVs, and the like, more suitably in accordance with the applied visual characteristics have emerged.

As shown in FIGS. 2A and 2B, the wide display monitor provides a more lively screen by setting the ratio of width to length of a conventional display monitor from 4: 3 to 16: 9. Such a wide display monitor includes a D-SUB (200a), a headphone jack (200b), and a front case for processing signals generated from a computer, a VTR, a TV, and the like. RCA jack 200c receiving a composite association signal is provided.

In addition, a wide display monitor rear case is provided with a plurality of jacks for receiving a video signal and a sound signal of a TV composite signal, and a jack (200d) receiving a SVHS composite signal and a signal. A terminal 200e and a D-SUB 200f for passing through are provided.

As the signals input from the outside of the wide display monitors are diversified, there is a problem that the user cannot select the connected signals by checking which signals are currently applied or connected. have.

Accordingly, the present invention provides an apparatus and method for managing a signal using an OSD that checks and displays an OSD using an OSD function when various types of signals are input from an external device in a display monitor to solve the above problems. For the purpose.

In order to achieve the above object, the present invention provides a composite signal input terminal for receiving first and second composite signals and an SVHS composite signal applied from the outside, and a first and second composite signal and SVHS composite output from the composite signal input terminal. A complex signal processing circuit that receives a signal such as a signal, selects according to a predetermined selection signal, and separately outputs a color difference signal and a luminance signal, and outputs a color difference signal and a video card selectively applied from the complex video signal processing circuit. A display monitor circuit comprising a switch circuit for receiving a signal, which is a VGA video signal, and a predetermined circuit for outputting a selected video signal, the control switch controlling phase adjustment and display monitor functions, and signal management. Consists of a switch to select a function, control switch and signal according to the user's selection Re-selection switch control signal to output a function of the button unit; A plurality of ports are provided to detect a signal applied from the outside, and the first and second composite signals and the SVHS composite signal, etc., which are applied from the composite signal input terminal, and the VGA video signals which are signals output from the video card are detected. And a microcomputer for outputting a selection signal for selecting the OSD data and a signal according to the detection of the signal by the selection of the control button unit; And an OSD circuit for outputting the OSD signal according to the signal detection by receiving and processing the OSD data according to the signal detection output from the micom according to the selection of the selection switch of the signal management function in the control button unit. have.

Another feature of the present invention is the presence or absence of the input signal to determine whether there is a signal input to the display monitor when the signal management switch using the OSD is selected; The determination step of the presence or absence of the input signal, if it is determined that there is no input signal, the return step of returning to the pre-execution determination system of the input signal to wait before the input of the signal; An all check step of checking all input signals when it is determined that there is an input signal in the presence or absence determination step of the input signal; An OSD data transmission step of transmitting a signal sensed in the all check step; An OSD data display step of processing and applying the transmitted OSD data to a CRT when the OSD data is transmitted to the OSD circuit in the OSD data transmission step; In a signal management method using an OSD comprising a.

1 is a block diagram showing the internal circuit configuration of a conventional display monitor;

2A is a front view of a wide display monitor,

2B is a rear view of a wide display monitor;

Figure 3 is a block diagram showing the internal circuit configuration of a display monitor to which the present invention is applied.

4 is a flowchart illustrating a signal management method using an OSD according to the present invention.

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

3 is a block diagram showing the internal circuit configuration of a display monitor to which the present invention is applied. As shown in the drawing, the PC 10 executes a software selected by a user to output data by the CPU 11 and the data output from the CPU 11 to process and output a VGA video signal. And a video card 12 for outputting horizontal and vertical synchronization signals H / V-SYNC for synchronizing the output VGA video signals.

The display monitor 20, which receives and processes a VGA video signal output from the PC 10, a signal such as first and second composite signals and an SVHS composite signal applied from the outside, adjusts an image and displays a monitor. A control switch 21 for controlling a function and a switch for selecting a signal management function, and a control button 21 for outputting a control switch and a selection switch signal for a signal management function according to a user's selection, and an external A composite signal input terminal 22 for receiving the first and second composite signals and the SVHS composite signal applied from the first signal; and a signal such as the first and second composite signals and the SVHS composite signal applied from the composite signal input terminal 22 ( Signal and VGA video signal output from the video card 12 are detected, OSD data and time according to the detection of the signal (Signal) by the selection of the control button unit 21 Outputs a selection signal for selecting a signal and receives and processes a horizontal sync signal H-SYNC and a vertical sync signal V-SYNC output from the video card 12 to process horizontal and vertical oscillation signals. The composite microcomputer 23 and the horizontal and vertical deflection circuit 24 for generating horizontal and vertical sawtooth wave currents in the deflection yoke DY by receiving the horizontal and vertical oscillation signals output from the microcomputer 23, Signals such as the first and second composite signals output from the signal input terminal 22 and the SVHS composite signal, etc. are received and selected according to a selection signal output from the microcomputer 23 to separate and output a color difference signal and a luminance signal. The composite signal processing circuit 25 and the color difference signal selectively applied from the composite video signal processing circuit 25 and the signal Signal which is a VGA video signal output from the video card 12 are applied to the image. A switch circuit 26 that receives a selection signal output from the microcomputer 230 and outputs a selected video signal, and the microcomputer 23 according to selection of a selection switch of a signal management function in the control button unit 21. OSD circuit 27 for receiving and processing the OSD data according to the signal detection from the OSD and outputting the OSD signal in accordance with the signal detection, from the OSD signal and the switch circuit 25 output from the OSD circuit 27 It is composed of a video pre and main amplifier circuit 28 for receiving and amplifying and selectively outputting the video signal to the CRT.

During the configuration, the microcomputer 23 may detect a signal applied to the composite signal input terminal 22 and a signal generated through the video card 12 of the computer 10. P1 to P4 are provided, and the number of signal sensing ports P1 to P4 can be increased according to the number of signals.

In this configuration, a control method for signal management using the OSD stored in the microcomputer 23 will be described in more detail with reference to FIG. 4.

4 is a flowchart illustrating a signal management method using an OSD according to the present invention. As shown in the figure, a start step S21 of selecting a signal management switch (not shown) using the OSD and a signal management switch using the OSD are selected from the start step S21 to the display monitor. The presence or absence of an input signal (Signal) for determining whether there is an input signal (Signal) (S22), and the signal signal input in the presence or absence determination step (S22) of the input signal (Signal) is If it is determined that there is no signal to return to the execution of the determination of the presence or absence of the input signal (Signal) (S22) to wait for the input of the signal (Signal) and the input step (S23), If it is determined that there is a signal (Signal) input in the presence or absence determination step (S22) of the signal (Signal) All check step (S24) for checking all the signals (Signal) input and the all check (All) check) Sig detected in step S24 OSD data transmission step (S25) for transmitting a (Signal), and OSD data is transmitted to the OSD circuit (27) in the OSD data transmission step (S25), the OSD to process the transmitted OSD data to apply to the CRT to display If the data display step (S26) and the OSD data display step (S26) is displayed on the OSD data CRT, the user selects or confirms the detected signal (Signal) and then ends the signal management. It is composed.

Thus, the signal management operation applied to the display monitor 20 will be described in more detail as follows.

The VGA video signal, which is a signal (Signal) output from the video card 12 of the computer 10, is applied to the switch circuit 26. In addition, the composite signal input circuit 22 receives the first composite signal, the second composite signal, and the SVHS composite signal, which are signals from outside such as a TV broadcast signal and a VTR, through the composite signal processing circuit 25. Is processed and applied to the switch circuit 26.

At this time, the composite signal processing circuit 25 is composed of a digital computer filter, a chroma circuit (not shown), and the like, and the color difference signal and luminance in the first composite signal, the second composite signal, and the SVHS composite signal. It will separate the signal.

Signals such as the first composite signal, the second composite signal, and the SVHS composite signal, from which the VGA image signal applied to the switch circuit 26 and the color difference signal and the luminance signal are separated from the composite signal processing circuit 25, are received by a microcomputer ( It is selected according to the selection signal output from 23) and applied to the video pre and amplifier circuit 28. The video pre and amplifier circuits 28 that receive the color difference signal or the VGA video signal of the composite signal selected and output from the switch circuit 26 are sufficiently amplified and displayed on the CRT.

At this time, when the VGA video signal is displayed on the CRT, the VGA video signal is displayed in synchronization with the period of the sawtooth wave current generated in the deflection yoke DY by the horizontal and vertical deflection circuits 24 to synchronize the VGA video signal. At this time, the horizontal and vertical deflection circuits 24 include the horizontal and vertical deflection circuits H / V-SYNC output from the video gut 12 of the computer 10 in the microcomputer 23, and output the horizontal and vertical deflection circuits 24. A vertical oscillation signal is applied and processed to generate sawtooth current.

In addition, when the composite signal output from the composite signal processing circuit 25 is displayed on the CRT, the horizontal and vertical deflection circuits 24 deflect the top wave current in accordance with the luminance signal separated from the composite signal processing circuit 25. Occurs in the yoke DY to synchronize the phase.

In the normal operation of the display monitor 20, when the user needs to confirm the signal (Signal) currently input, the user manages the signal (Signal) using the OSD of the control button unit 21 in the start step (S21). Select the switch for When the signal management switch using the OSD is selected, the selected switch signal is received from the microcomputer 23. When the signal management switch using the OSD is selected and applied to the microcomputer 23, the signal detection port (P1 to the signal detection port) of the microcomputer 23 is determined in step S22 of the presence or absence of the input signal Signal. P4) determines whether a signal is input.

As a result of the determination, if no signal is input to the signal detection ports P1 to P4, a return step S23 is executed to execute the signal detection port of the microcomputer 23 ( Wait until signal is input to Port (P1 ~ P4). In addition, if it is determined that the input signal Signal is present in the presence or absence determination step S22, the signal detection port of the microcomputer 23 is detected in the all check step S24. Check (Port) (P1 to P4). When a signal is detected through the signal detection ports P1 to P4 of the microcomputer 23, the OSD data transmission step S25 is executed.

That is, the OSD data transfer step S25 processes the signal Signal detected at the signal detection ports P1 to P4 of the microcomputer 23 through the microcomputer 23 as OSD data. The OSD data according to the detection of the signal processed as the OSD data is applied from the microcomputer 23 to the OSD circuit 27. The OSD circuit 27 receiving OSD data according to signal detection processes the applied OSD data and applies the OSD signal to the video pre and main amplifier circuits 28.

The video pre and main amplifier circuits 28 receiving the OSD signal according to the signal detection are sufficiently amplified the OSD signal according to the detected signal and displayed on the CRT in the OSD data display step S26. do. Looking at the OSD screen displayed on the CRT, the user checks the signal source currently connected to the display monitor 20 and terminates the signal management using the OSD in the termination step S27.

As such, the user may select a signal that is not connected to the display monitor as the user confirms whether the signal is connected by using the OSD function in the display monitor 20 that receives and processes various signals. Will be prevented.

As described above, the present invention has an effect of more effectively managing signal management by checking whether or not a signal is connected using an OSD function in a display monitor that receives and processes various signals.

Claims (2)

A composite signal input terminal receiving the first and second composite signals and the SVHS composite signal applied from the outside, and a signal such as the first and second composite signals and the SVHS composite signal output from the composite signal input terminal are applied, and predetermined A complex signal processing circuit which selects according to a selection signal and separately outputs a color difference signal and a luminance signal, a color difference signal selectively applied from the complex video signal processing circuit, and a signal which is a VGA video signal output from a video card; A display monitor circuit including a switch circuit for outputting a selected video signal by receiving a predetermined selection signal, the display monitor circuit comprising: a control switch for controlling phase adjustment and display monitor functions, and a switch for selecting a signal management function; Outputs the selector switch signal of the control switch and signal management function according to the selection. Control button unit; A plurality of ports are provided to detect a signal applied from the outside, and the first and second composite signals and the SVHS composite signal, etc., which are applied from the composite signal input terminal, and the VGA video signals which are signals output from the video card are detected. And a microcomputer for outputting a selection signal for selecting an OSD data and a signal according to the detection of the signal by the selection of the control button unit; And an OSD circuit for receiving and processing OSD data according to signal detection output from the micom according to selection of a selection switch of a signal management function in the control button unit to output an OSD signal according to signal detection. Signal management device using the OSD. Determining whether a signal is input to the display monitor when the signal management switch using the OSD is selected; The determination of the presence or absence of the input signal may include: a return step of returning before the execution of the presence or absence of the input signal to wait for input of the signal when it is determined that there is no input signal; An all check step of checking all input signals when it is determined that there is an input signal in the presence or absence determination step of the input signal; An OSD data transmission step of transmitting a signal sensed in the all check step; And an OSD data display step of processing and applying the displayed OSD data to the CRT when the OSD data is transmitted to the OSD circuit in the OSD data transmission step.

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