KR0186150B1 - The double window signal output apparatus of tv - Google Patents

Abstract

The present invention relates to an apparatus for outputting a double window signal of a TV. In the conventional double window TV, even though two screens can be viewed by a monitor, only one screen, that is, a main video signal and an audio signal, is applied to the monitor output terminal. There was a problem that only the video and audio signal of one screen is recorded through the monitor output terminal. In order to solve the conventional problems, the present invention receives a main broadcast signal, a sub-broadcast signal, or a sound / video signal from an external device, and separates the sound into a main picture signal and a sub picture signal according to the sound / video selection signal. Image switching switching unit; A double window processing unit which receives the main screen and the sub picture signals output from the audio / video switching switching unit into a luminance / color signal separation and a color difference signal by a signal separation unit, and processes the same as a double window signal; A color difference signal switching unit for selecting a main image color difference signal and a color difference signal of the double window processing unit according to a selection signal and outputting the color difference signal to a monitor through a color signal matrix unit; An encoder for converting the output color difference signal of the double window processing unit into an NTSC double window composite signal and outputting the converted color difference signal; Invented a TV double window signal output device composed of a double window monitor output terminal unit for transmitting the double window video signal of the encoder, the main audio signal and the sub-audio signal of the audio / video switching switching unit to an external device, its operation Through the double-window state screen and the voice can be recorded as it is, when playing it later there is an effect that you can watch the double-window state screen in any TV as it is.

Description

TV's Double Window Signal Output Device

1 is a block diagram of a conventional double window TV.

FIG. 2 is a diagram showing a double window state screen in FIG. 1. FIG.

3 is a block diagram of an embodiment of the present invention.

FIG. 4 is a diagram showing a screen state in the case of recording a double window screen while watching a screen in a double window state in FIG.

5 is a diagram showing a screen state in the case of recording a double window screen while watching a screen in FIG.

6 is a block diagram of another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

100: signal input unit 110: main tuner

120: sub-tuner 130: audio / video input terminal

200: audio / video switching switch 300: luminance / color signal separation unit

310: main luminance / color signal separation unit 320: sub luminance / color signal separation unit

400: color difference separator 410: main color difference separator

420: sub color separation unit 500: double window processing unit

600: color difference signal switching unit 700: color signal matrix unit

800 monitor 900 encoder

810: deflection processing unit 820: monitor output terminal

830: Headphone Terminal 840: Voice Amplifier

850, 851: Speaker 860: Double window monitor output terminal

The present invention relates to an apparatus for outputting a double window signal of a TV, and in particular, to record an image and an audio in a double window state by transmitting an image of a double window state and an audio signal of a main screen and a sub screen to an external device. The present invention relates to a TV double window signal output device that is suitable.

1 is a block diagram of a conventional double window TV, as shown in FIG.

A signal input unit 100 including a main tuner 110 for selecting a main screen broadcast signal, a sub tuner 120 for selecting a sub screen broadcast signal, and an audio / video input terminal unit 130 for receiving an external signal; ; An audio / video switching switching unit 200 which receives respective signals from the signal input unit 100 and outputs a main screen signal and a sub picture signal; Main luminance / color signal separation unit 310 for separating the luminance / color signal of the main screen output signal of the audio / video switching switch unit 200 and luminance of the sub-screen output signal of the audio / video switching switch unit 200. A luminance / color signal separator 300 formed of a sub-luminance / color signal separator 320 for separating the color signals; A main color difference separator 410 for color separation of the output signal of the main luminance / color signal separator 310 and a sub color difference separator 420 for color difference separation of the output signal of the sub luminance / color signal separator 320 Color difference separator 400 made of; A double window processing unit 500 for processing the output signal of the color difference separator 400 as a double window signal and outputting the double window signal; A first selection switch SW1 for selecting and outputting a luminance signal of the main color difference separator 410 and a luminance signal of the double window processing unit 500 according to a selection signal of the double window selection switch, and a double window selection switch A second selection switch SW2 for selecting and outputting a color difference signal U of the main color difference separator 410 and a color difference signal U of the double window processing unit 500 according to a selection signal, and a double window selection switch Color difference signal switching comprising a color difference signal V of the main color difference separator 410 and a third selection switch SW1 for selecting and outputting the color difference signal V of the double window processing unit 500 according to a selection signal of? A part 600; The color signal matrix unit 700 outputs the color signals R, G, and B to the monitor 800 by combining the output color difference signals of the color difference signal switching unit 600.

Reference numeral 810 denotes a deflection processing unit, 820 denotes a monitor output terminal unit for outputting the main screen output signal of the audio / video switching switch unit 200 to the outside, and 830 denotes the audio / video switching unit. A headphone terminal for outputting the sub-screen output signal of the switching unit 200 to the outside, 840 is a voice amplifier for amplifying the voice signal of the main screen output signal of the audio / video switching switching unit 200. And 850 and 851 are speakers.

Referring to the operation of the conventional double window TV configured as described above is as follows.

The main tuner 110 outputs the main video signal V and the audio signals R and L, and the sub tuner 120 outputs the sub video signal V and the audio signals R and L.

In addition, when an external video device such as a VCR or a laser disk LD is connected to the audio / video input terminal unit 130, a video V and an audio signal R and L from the connected device are output. do.

The audio / video switching switching unit 200 which receives the output signal of the main tuner 110, the sub tuner 120 and the audio / video input terminal unit 130 outputs the main screen signal Vm according to the audio / video selection signal. , Rm, Lm) and sub picture signals (Vs, Rs, Ls).

At this time, the main screen image signal Vm among the main screen signals Vm, Rm, and Lm is separated and output through the main luminance / color signal separation unit 310 and the luminance signal Y and the color signal C are output.

The separated signals (Y, C) are separated by the main color difference separator 410 and output as color difference signals (Y1, U1, V1).

Among the sub picture signals Vs, Rs, and Ls, the sub picture video signal Vs is output by separating the luminance signal Y and the color signal C through the sub-luminance / color signal separation unit 320.

The separated signals Y and C are separated by the main color difference separator 420 and output as color difference signals Y2, U2 and V2.

The double window processing unit 500 receiving the output signals of the main color difference separating unit 410 and the sub color difference separating unit 420 processes the double window, that is, the color difference signal processed to appear as two screens on one monitor. Outputs (YD, UD, VD).

In this case, the first to third selection switches SW1 to SW3 are color difference signals Y1, U1 and V1 of the main color difference separator 410 or color difference signals of the double window processing unit 500 according to the double window selection signal. Select (YD, UD, VD) to output.

(Y, U, V) selected by the first to third selection switches SW1-SW3 are processed as R, G, and B signals through the color signal matrix unit 600 and applied to the monitor 800. In this case, the R, G, and B signals are controlled by the deflection processor 810.

If the double window screen is selected, the main screen appears on the left half of the full screen, and the sub screen appears on the right side, as shown in FIG.

On the other hand, the main image and the audio signal (Vm, Rm, Lm) of the audio / video switching switching unit 200 is applied to the monitor output terminal unit 820 for transmitting to an external device (e.g., BC), of which The main audio signals Rm and Lm are amplified by the voice amplifier 840 and output to the speakers 850 and 851.

Sub-picture and audio signals Vs, Rs, and Ls are applied to the headphone terminal 830 for connecting headphones.

When the double window screen is selected as described above, the main screen audio is heard through the speakers 850 and 851, and the sub screen audio is listened through the headphones.

As described above, in the conventional double window TV, although only two screens can be seen on the monitor, only one screen, that is, the main video signal and the audio signal, is applied to the monitor output terminal unit. There was a problem that only video and audio signals are recorded.

An object of the present invention to transmit the video signal of the double window state and the main audio signal and the sub-audio signal at that time to the external device to solve the conventional problems, to record the screen and sound of the double window state To provide a TV double window signal output device.

The double window signal output device of the TV for achieving the object of the present invention receives a main broadcast signal or a sub-broadcast signal or a sound / video signal from an external device and receives the main picture signal and the sub picture signal according to the sound / video selection signal. Audio / video switching switching unit to separate the output; A double window processing unit for inputting the main screen and the sub picture signals output from the audio / video switching switching unit into the luminance / color signal separation unit and the color difference signal by the signal separation unit and processing the same as a double window signal; A color difference signal switching unit for selecting a main image color difference signal and a color difference signal of the double window processing unit according to a selection signal and outputting the color difference signal to a monitor through a color signal matrix unit; An encoder for converting the output color difference signal of the double window processing unit into an NTSC double window composite signal and outputting the converted color difference signal; A double window monitor output terminal unit for transmitting the double window video signal of the encoder, the main audio signal and the sub audio signal of the audio / video switching switching unit to an external device.

Hereinafter, an embodiment will be described with reference to the operation and effects of the present invention.

3 is a block diagram of an embodiment of the present invention. As shown in FIG. 3, the main tuner 110 for selecting the main screen broadcast signal, the sub-tuner 120 for selecting the sub screen broadcast signal, and the external signal are shown in FIG. A signal input unit 100 including an audio / video input terminal unit 130 for receiving an input; An audio / video switching switching unit 200 which receives respective signals from the signal input unit 100 and outputs a main screen signal and a sub picture signal; Main luminance / color signal separation unit 310 for separating the luminance / color signal of the main screen output signal of the audio / video switching switch unit 200 and luminance of the sub-screen output signal of the audio / video switching switch unit 200. A luminance / color signal separator 300 formed of a sub-luminance / color signal separator 320 for separating the color signals; A main color difference separator 410 for color separation of the output signal of the main luminance / color signal separator 310 and a sub color difference separator 420 for color difference separation of the output signal of the sub luminance / color signal separator 320 Color difference separator 400 made of; A double window processing unit 500 for processing the output signal of the color difference separator 400 as a double window signal and outputting the double window signal; Selection of the first selection switch SW1 and the double window selection switch to select and output the luminance signal of the main color difference separator 410 and the luminance signal of the double window processing unit 500 according to the selection signal of the double window selection switch. A second selection switch SW2 for selecting and outputting the color difference signal U of the main color difference separator 410 and the color difference signal U of the double window processing unit 500 according to a signal; A color difference signal switching unit including a color difference signal V of the main color difference separator 410 and a third selection switch SW1 for selecting and outputting the color difference signal V of the double window processing unit 500 according to a selection signal. 600; The color signal matrix unit 700 for outputting the color signals R, G, and B to the monitor 800 by combining the output color difference signals of the color difference signal switching unit 600 and the output color difference signal of the double window processing unit 500. An encoder 900 that receives (YD, UD, VD) and outputs it as an NTSC double window composite signal; A double window monitor output terminal unit 860 for transmitting the double window video signal of the encoder 900 and the main audio signal and the sub audio signal of the audio / video switching switching unit 200 to an external device.

Reference numeral 810 denotes a deflection processing unit, 820 denotes a monitor output terminal unit for outputting the main screen output signal of the audio / video switching switching unit to the outside, and 830 denotes a subscreen of the audio / video switching switching unit. A headphone terminal for outputting an output signal to the outside, and 840 is a voice amplifier for amplifying the voice signal of the main screen output signal of the audio / video switching switching unit. And 850 and 851 are speakers.

The operation of one embodiment of the present invention configured as described above will be described with reference to FIGS. 4 and 5.

First, the general operation is the same as before. Briefly, the main tuner 110 outputs the main broadcast signals V, R, and L, and the sub tuner 120 outputs the sub broadcast signals V, R, and L.

The audio / video input terminal unit 130 outputs the screen signals V, R, and L from an external video device such as a VCR or a laser disc LD.

The audio / video switching switching unit 200 which receives the output signal of the main tuner 110, the sub tuner 120 and the audio / video input terminal unit 130 outputs the main screen signal Vm according to the audio / video selection signal. And Rm and Lm and the sub picture signals Vs, Rs and Ls.

At this time, the main screen video signal (Vm) of the main screen signal (Vm, Rm, Lm) is separated from the luminance signal (Y) and the color signal (C) through the main luminance / color signal separation unit 310, which is again the main It is separated by the color difference separator 410 and is output as color difference signals Y1, U1, and V1.

Among the sub picture signals Vs, Rs, and Ls, the sub picture video signal Vs is separated from the luminance signal Y and the color signal C by the sub-luminance / color signal separating unit 320, which is again sub-color difference. It is separated by the separating unit 420 and output as the color difference signals Y2, U2, and V2.

The double window processing unit 500 receiving the output signals of the main color difference separating unit 410 and the sub color difference separating unit 420 processes the double window, that is, the color difference signal processed to appear as two screens on one monitor. Outputs (YD, UD, VD).

In this case, the first to third selection switches SW1 to SW3 are color difference signals Y1, U1 and V1 of the main color difference separator 410 or color difference signals of the double window processing unit 500 according to the double window selection signal. Select (YD, UD, VD) to output.

The color difference signals Y, U, and V selected by the first to third selection switches SW1 to SW3 are processed as R, G, and B signals through the color signal matrix unit 700 and applied to the monitor 800. . In this case, the R, G, and B signals are controlled by the deflection processor 810.

On the other hand, the main image and the audio signal (Vm, Rm, Lm) of the audio / video switching switching unit 200 is applied to the monitor output terminal unit 820 for transmitting to an external device (for example, V-AL).

In this case, the main audio signals Rm and Lm are amplified by the voice amplifiers 840 and output to the speakers 850 and 851 and are applied to the main voice output terminals MR and ML of the double window monitor output terminal unit 860. .

The sub-audio signals Vs, Rs, and Ls are applied to the headphone terminal 830 for connecting the headphones and to the sub-audio output terminals SR and SL of the double window monitor output terminal unit 860.

In this case, only one screen signal may be recorded through the monitor output terminal unit 820, but the screen signal in a double window state may be recorded through the double window monitor output terminal unit 860.

In more detail, as shown in FIG. 4, when viewing a double window state screen through a monitor, the screen signal through the double window monitor output terminal unit 860 is recorded using V-Cal, and then the double window is recorded. When playing in widescreen, you can watch and listen to the double-window screen as it is, and you can see both screens at the same time, even though the screen is played vertically.

At this time, the process of connecting the audio terminal to the V-Cell is connected to the light (MR) output terminal of the main audio output terminal of the double window monitor output terminal unit 860, the light (SR) of the sub-audio output terminal. The terminal is connected to the left terminal of V-CAL to record the sound of both screens.

In the future, if a product with an A / V input terminal capable of connecting audio of two screen contents to V-Cal appears, it is possible to record the audio of the main and sub screens in stereo.

On the other hand, even when the user is looking at one screen through the monitor, that is, the main screen, the recording can be in a double window state. In this case, first, select the desired main screen and sub-screen, that is, select the double window state Select the desired screen again. That is, the double window off.

Then, the double window processing unit 500 outputs a color difference signal according to the selected double window screen.

Accordingly, when recording through the double window monitor output terminal unit 860, as shown in FIG. 5, the monitor can record a double window state screen even while viewing one screen.

At this time, of course, the monitor output terminal unit 860 outputs the main video and audio signal of the current main screen.

Meanwhile, as another embodiment, as illustrated in FIG. 6, the monitor output terminal unit 820 is deleted, and the input signal of the encoder 900 is not provided at the output terminal of the double window processing unit 500, but instead, the first through the first embodiment are provided. It may be provided at the output terminal of the three switches SW1-SW3.

In this way, when recording through the double window monitor output terminal unit 860, it is possible to record the screen of the current monitor as it is.

That is, if only one screen is currently viewed on the monitor, only one screen is recorded, and if the double window screen is viewed, the double window screen can be recorded.

Recently, two videos are often watched at the same time for time saving. That is, on the one hand, the demand of users who want to watch TV while on the other hand is increasing.

In this situation, as described in detail above, the present invention can record the picture and the voice of the double window state as it is, so that there is an effect of viewing the double window state screen as it is in any TV when playing it later.

Claims (2)

An audio / video switching switch unit which receives a main broadcast signal, a sub-broadcast signal, or a sound / video signal from an external device, and outputs the main broadcast signal and the sub picture signal according to the sound / video selection signal; A double window processing unit for inputting the main screen and the sub picture signals output from the audio / video switching switching unit into the luminance / color signal separation unit and the color difference signal by the signal separation unit and processing the same as a double window signal; A color difference signal switching unit for selecting a main image color difference signal and a color difference signal of the double window processing unit according to a selection signal and outputting the color difference signal to a monitor through a color signal matrix unit; An encoder for converting the output color difference signal of the double window processing unit into an NTSC double window composite signal and outputting the converted color difference signal; And a double window monitor output terminal unit for transmitting the double window video signal of the encoder and the main audio signal and the sub audio signal of the audio / video switching switching unit to an external device. The apparatus of claim 1, wherein the encoder converts an output signal of the color difference signal switching unit into an NTSC double window composite signal and outputs the converted signal.