KR950010059B1 - Sub-screen sound selecting apparatus in pip monitor - Google Patents

Abstract

The apparatus comprises a first sound switching unit for selecting a sound signal corresponding to a selected master screen from a plurality of image signals provided from a plurality of signal resources; a speaker and line jacking unit for outputting the sound signal corresponding to the image signal displayed on the master screen of the first sound switching unit; a second sound switching unit for selecting the sound signal corresponding to a selected slave screen from a plurality of image signals provided from a plurality of signal resources; and a slave screen sound outputting unit for outputting the sound signal corresponding to the selected slave screen of the second sound switching unit to the outside.

Description

Sub picture audio listening device of video device having simultaneous picture function

1 is a schematic block diagram of a typical PIP circuit for processing simultaneous pictures.

2 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a first embodiment of the present invention.

3 is a block diagram of a sub picture audio listening apparatus of a video device according to a second embodiment of the present invention.

4 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a third embodiment of the present invention.

5 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a fourth embodiment of the present invention.

6 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a fifth embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

15: PIP circuit 11, 21, 22: tuner / IF circuit

12,13: external video and audio input line 16: mother screen audio transmission switch

17: sub picture voice transmission switch 20: distributor

25: speaker 46,47: TV / line input selection switch

The present invention relates to a sub picture audio listening device capable of listening to a sub picture along with a main picture in a video device such as a TV, a VCR, and a TVCR having a picture in picture (PIP) function.

In general, the simultaneous picture system uses several fields of memory area to properly synchronize and combine two asynchronous signals so that the main picture and the sub picture of the other field are seamlessly connected to one monitor. As a display system, such a typical simultaneous display system is one example having a configuration as shown in FIG. 1, and the typical system presented here is schematically shown for easy description of the apparatus according to the present invention. As a matter of course, it should not be understood that the system shown in the drawings is absolutely consistent with the actual circuit configuration.

In Fig. 1, reference numerals 1 and 2 are first inputs and second inputs, and these input signals may include broadcast signals, external signals, playback signals, and the like. Also, reference numerals 3 and 4 are inputs of a mother / child screen switching or selection control signal and a PIP on / off control signal provided from a microcomputer (not shown) according to a user's option. In addition, the two switching means 6 and 7 select the first input and the second input to the mother screen 8 or the mother screen 9 based on the control signal from the mother / child control signal input 3. The switch means 10 controls the output of the inputted magnetic screen based on the control signal from the PIP input 4.

Here, the terms parent screen 8 and subscreen 9 may refer to the signal itself and may mean any means having that signal. Then, the output of the mother screen 8 and the mother screen 9 is properly synchronized and reduced by the mother / child synthesis means 14 of the next stage, and is output through the output stage 5 to a monitor (not shown).

As described above, in a typical video apparatus having a simultaneous picture function, the viewer can view both the parent and child screens, but in the audio signal, only one screen of audio, i.e., the parent / child switching or selection function, can be used. Only the voice of the screen or the voice signal of the sub picture is selectively listened to. That is, in the related art, it was not possible for a viewer to simultaneously listen to voices of two screens currently displayed in a video device capable of displaying a simultaneous screen through one monitor.

Accordingly, the present invention has been made in view of the above-described point, and an object of the present invention is to provide a sub picture voice listening device capable of listening to the voice of the sub picture as well as the voice of the main picture in a video device having a simultaneous picture function. .

In accordance with one aspect of the present invention, a plurality of video signals provided from a plurality of signal sources are synchronized through predetermined signal processing synthesizing means, and then selectively synthesized into a mother screen or a child screen, respectively. A video apparatus having a simultaneous picture function for simultaneously displaying on a monitor, wherein the selected parent image among the plurality of video signals provided from the plurality of signal sources is selected based on a selection control signal for selecting the mother screen and the child screen. First audio switching means for selecting a voice signal corresponding to the screen; Speaker and line jack means for outputting an audio signal corresponding to the selected video signal from the first audio switching means to the mother screen; Second audio switching means for selecting an audio signal corresponding to the selected child screen from among the plurality of video signals provided from the plurality of signal sources based on a selection control signal for selecting the mother screen and the child screen; And a sub picture audio output device including a sub picture sound output means for outputting a voice signal corresponding to the selected sub picture provided from the second voice switching means to the outside.

According to another aspect of the present invention, there is provided a predetermined signal processing synthesizing means for at least two video signals selected from respective video signals provided from at least two signal sources and reproduced video signals provided from the reproduction / recording side. A video apparatus having a simultaneous picture function of synchronizing via a screen and then selectively synthesizing it into a mother screen or a child screen, respectively, and simultaneously displaying the same on a monitor, wherein the image from any one of the two signal sources is used for the simultaneous picture display on the monitor. First audio switching means for selecting an audio signal corresponding to the selected video signal from the two video signals provided from the two signal sources based on a control signal for selecting the signal; The selected mother signal from among the selected audio signal from the first audio switching means and a reproduced audio signal corresponding to a reproduced video signal provided from the reproduction / recording side, based on a selection control signal for selecting the mother screen and the child screen; Second audio switching means for selecting an audio signal corresponding to the screen and providing the audio signal corresponding to the video signal selected for recording provided from the first audio switching means to the reproduction / recording side in the recording mode; Speaker and line jack means for outputting a voice signal corresponding to the selected mother picture provided from the second voice switching means; The selected sub picture from among the reproduced sound signal corresponding to the selected sound signal from the first audio switching means and the reproduced video signal provided from the reproduction / recording side, based on a selection control signal for selecting the mother screen and the sub picture; Third voice switching means for selecting a voice signal corresponding to the voice signal; And a sub picture audio output device including a sub picture sound output means for outputting a voice signal corresponding to the selected sub picture provided from the third voice switching means to the outside.

According to still another aspect of the present invention, there is provided a display apparatus according to an aspect of the present invention, wherein a plurality of video signals provided from a plurality of signal sources are selected and at least two video signals selected from a playback video signal provided from a playback / recording side. A video apparatus having a simultaneous picture function of synchronizing via a signal processing synthesizing means and then selectively synthesizing each of a mother screen or a child screen and simultaneously displaying on a monitor, wherein the video device is provided from the plurality of signal sources in a recording mode. Audio recording switching means for selecting an audio signal corresponding to a video signal to be recorded from among a plurality of audio signals corresponding to a plurality of video signals and providing the same to the playback / recording side; First audio switching for selecting an audio signal corresponding to the selected video signal among the plurality of video signals based on a control signal for selecting a video signal from any one of the plurality of signal sources for simultaneous picture display to the monitor Way ; A first voice for determining whether the selected voice signal output from the first voice switching means is the mother screen corresponding voice signal or the sub picture corresponding voice signal based on the selection control signal for selecting the mother screen and the mother screen; Judgment / switching means; On the basis of the selection control signal for selecting the mother screen and the mother screen, it is determined whether the playback audio signal corresponding to the playback video signal provided from the playback / recording side is the mother screen corresponding audio signal or the mother screen corresponding audio signal. Second voice judgment / switching means for judging; Speaker and line jack means for outputting a voice signal corresponding to the selected mother screen provided from the first and second voice determination / switching means; Providing a sub picture voice listening device of an image apparatus having a simultaneous picture function comprising a sub picture voice output means for outputting a voice signal corresponding to the selected sub picture provided from the first and second voice determination / switching means to the outside do.

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

[First Embodiment]

2 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a first embodiment of the present invention. As shown in the figure, this embodiment relates to a sub picture audio listening apparatus of a TV having a tuner / IF circuit and an external input as one signal source.

Referring to FIG. 2, the video signal of the broadcast signal received from the antenna through the tuner / IF circuit 11 and the external video signal transmitted through the external video signal input line 12 are the first input video and the second video signal. It is transmitted to the PIP circuit 15 as an input image. Then, these two video signals are appropriately switched and summed according to the PIP on / off, parent / child switching and TV / AV switching control signals provided from the microcomputer (not shown) in the PIP circuit 15. The switched video signal is converted into a carrier color signal through the next color matrix circuit or color encoder circuit 19 and then output to a monitor not shown for display.

In addition, the voice signal separated from the broadcast signal provided from the tuner / IF circuit 11 and the external voice signal through the voice input line 13 are the first and second voice inputs, respectively, and the mother screen voice transfer (or selection) switch. Are transmitted as input signals of (16), respectively. Here, the mother screen voice transfer switch 16 is a speaker 25 or earphone to the voice signal corresponding to the mother screen based on the TV / AV switching and mother / child switching control signals provided from the microcomputer (not shown) Pass in line 28.

On the other hand, the sub picture voice transfer switch 17 according to the present embodiment receives the external voice signal from the line 13 as a first input as opposed to the parent screen voice transfer switch 16 described above, and receives a tuner / IF circuit ( 11) a voice signal in the broadcast signal through the second input is received. Similarly, the mother screen voice transfer switch 17 transmits the voice signal of the mother screen that is not selected by the mother screen voice transfer switch 16 to the earphone output line and the jack 29 which can be connected to the earphone from the outside. In this case, when the PIP on / off control signal is on, the sub picture voice transfer switch 17 provides a voice signal of the sub picture to the line and jack 29, not the voice signal of the mother screen transmitted to the speaker 25. When the PIP on / off control signal is off, the voice signal of the mother screen transmitted to the speaker 25 is provided to the line and the jack 29.

That is, according to the present embodiment, when the viewer selects the broadcast signal received through the tuner / IF circuit 11 as the mother screen in the PIP on state, the mother screen is based on the mother / child switching control signal from the microcomputer. Since the contact ab of the voice transmission switch 16 is connected and the contact ab of the own screen voice transmission switch 17 is connected, the voice signal corresponding to the broadcast signal selected as the mother screen is transferred to the speaker 25, the line, and the jack 28. The external audio signal corresponding to the external video signal selected as the sub picture is output through the line and the jack 29.

On the contrary, when the viewer selects the external video signal input through the line 12 as the mother screen in the PIP-on state, the mother screen audio transfer switch 16 is based on the parent / child switching control signal from the microcomputer. Since the contact ac of is connected and the contact ac of the magnetic screen audio transfer switch 17, the external audio signal corresponding to the external video signal selected as the parent screen is output to the speaker 25 and the line and jack 28, The audio signal corresponding to the broadcast signal received through the tuner / IF circuit 11 selected as the screen is output through the line and the jack 29.

Therefore, according to the present exemplary embodiment, when a user wants to simultaneously view two screens in a video device having a simultaneous picture function, the audio signal for the selected parent picture of the broadcast signal and the external video signal through the tuner may be connected to the speaker, line, and jack 28. The user can listen to the earphone through a connectable earphone, and the audio signal for the selected magnetic screen among the broadcast signal through the tuner and the external video signal can be heard through the earphone through the line and the jack 29.

Second Embodiment

3 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a second embodiment of the present invention. As shown in the figure, this embodiment, unlike the first embodiment described above, relates to a sub picture audio listening apparatus in a TV having two tuner / IF circuits as signal sources.

That is, the present embodiment has the point that when a broadcast signal of two channels is displayed on the monitor as a mother screen and a child screen, it is possible to simultaneously listen to each voice signal corresponding to each broadcast signal. . Therefore, in this embodiment, in consideration of this point, the distributor 20 for distributing the broadcast signal received through the antenna is provided in front of the first and second tuner / IF circuits 21 and 22.

In FIG. 3, the broadcast signal received from the antenna is first distributed through the splitter 20 to the first and second tuner / IF circuits 21 and 22, respectively. The PIP circuit 15 receives the video signal from the first tuner 21 as the first video input and receives the video signal from the second tuner 22 as the second video input. Then, the first and second video signals input to the PIP circuit 15 are composed of a mother screen and a child screen according to the PIP on / off switching and mother / child switching control signals provided by the embedded microcomputer. The output video signal composed of the screen and the sub picture is converted as a conveyance color signal through the color matrix circuit 19.

On the other hand, the mother screen audio switching (or selection) switch 16 receives the first and second audio signals provided from the first tuner / IF circuit 21 and the second tuner / IF circuit 22, respectively. Receive as 2 voice inputs. Then, the first and second voice inputs received as described above are the voice signals of the mother screen selected by the PIP circuit 15 based on the parent / child switching control signal, and a line capable of connecting the speaker 25 to the earphones from the outside and The jacks 28 are respectively output.

Further, the respective audio signals corresponding to the respective video signals from the first and second tuner / IF circuits 21 and 22 are transmitted to the mother screen audio transfer switch 16 described above and at the same time according to the present embodiment. It is also transmitted to the voice switching (or selection) switch 17. Accordingly, in the sub picture voice transmission switch 17, when the PIP is in the on state, the sub picture voice signal is selected based on the parent / child switching control signal, and is transmitted to the line and the jack 29. . In this embodiment, when the PIP on / off control signal is off, the sub picture voice transmission switch 17 may be configured to select the voice signal of the mother screen and provide it to the line and the jack 29.

That is, according to the present embodiment, when the viewer selects the broadcast signal received through the first tuner / IF circuit 21 as the mother screen in the PIP on state, based on the mother / child switching control signal from the microcomputer, Since the contact ab of the mother screen audio transmission switch 16 is connected and the contact ab of the mother screen audio transmission switch 17 is connected, the audio signal corresponding to the broadcast signal from the first tuner (IF circuit 21) selected as the mother screen. Is output to the speaker 25, the line and the jack 28, and the audio signal corresponding to the broadcast signal from the second tuner / IF circuit 22 selected as the sub picture is output through the line and the jack 29.

Contrary to the above, when the viewer selects the broadcast signal received through the second tuner / IF circuit 22 as the mother screen in the PIP-on state, the mother screen audio is transmitted based on the mother / child switching control signal from the microcomputer. Since the contact ac of the switch 16 is connected and the contact ac of the magnetic screen voice transfer switch 17 is connected, the audio signal corresponding to the broadcast signal from the second tuner / IF circuit 22 selected as the mother screen is the speaker 25. ) And a voice signal corresponding to the broadcast signal from the first tuner / IF circuit 21 selected as the sub picture and the line and jack 28 are output through the line and jack 29.

Therefore, in the present embodiment, as in the first embodiment described above, when a user wants to simultaneously view two screens in a video device having a simultaneous picture function, the audio signal for the selected mother screen among the video signals in each broadcast signal through the two tuners is A speaker, a line and a jack 28 can be listened to via an externally connectable earphone, and the audio signal for a selected sub picture among the video signals in each broadcast signal through two tuners is connected through a line and a jack 29. You can listen through the earphones as possible.

Third Embodiment

4 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a third embodiment of the present invention. As shown in the figure, the present embodiment, like the second embodiment described above, is equipped with two tuner / IF circuits as signal sources and is adapted to receive an external input signal as another signal source. It is related to the sub-screen audio listening device.

Referring to FIG. 4, as in the above-described second embodiment, according to the present embodiment, the broadcast signal received through the antenna is first transmitted through the divider 20 through the first and second tuner / IF circuits 21 and 22. Respectively). Then, each image signal output from the first and second tuner / IF circuits 21 and 22 is provided to two image transfer switches 36 and 37 positioned in front of the PIP circuit 15, respectively. In addition, each of the image transfer switches 36 and 37 is configured to receive another external image signal through the image input line 12.

Therefore, each of the image transfer switches 36 and 37 displays two video signals among the three input video signals based on the parent / child switching and TV / line switching control signals when the viewer wants to watch the simultaneous picture. The first and second video inputs for the sweets screen are selected and provided to the next PIP circuit 15. As a result, the PIP circuit 15 processes the first and second image input signals provided from the respective image transfer switches 36 and 37 into a mother screen and a child screen through a predetermined signal processing process, and performs a curling matrix. The circuit 19 outputs to a monitor not shown.

On the other hand, the parent screen audio transfer switch 26 and the sub picture audio transfer switch 27 according to the present embodiment, like the two image transfer switches 36 and 37 described above, have the first and second tuner / IF circuits ( The voice signals provided directly from 21 and 22 and the external voice signals provided through the external input line 13 are configured to be input. Therefore, on the basis of the parent / child switching and TV / line switching control signals from the microcomputer (not shown), the mother screen voice transmission switch 26 is a line 25 and a jack 28 capable of connecting the earphone to the speaker 25 from the outside. The voice signal corresponding to the mother screen is output through the sub screen, and the sub screen voice transmission switch 27 outputs the voice signal corresponding to the sub screen through an output line and a jack 29 which can be connected to the earphone from the outside. Specifically, the sub picture voice transfer switch 27 according to the present exemplary embodiment outputs a voice signal corresponding to the sub picture when in the PIP state.

That is, according to the present embodiment, based on the parent / child switching control signal from the microcomputer (not shown), when the contact ab of the mother screen voice transmission switch 26 is connected, the first tuner / IF circuit 21 is disconnected. The voice signal separated from the broadcast signal is output as a voice signal of the mother screen through a line and a jack 28 which can be connected to the speaker 25 and the external earphones, and at this time, the contact point of the sub-screen voice transmission switch 27 is ac. Alternatively, an external audio signal inputted through a line 13 or a voice signal separated from a broadcast signal from the second tuner / IF circuit 22 connected to an ad may be connected to an external earphone as a voice signal of a sub-screen. Output is via line and jack 29.

In addition, even if a broadcast signal from the second tuner / IF circuit 22 is selected as the mother screen or an external video signal input through the line 13 is selected as the mother screen, the other screen is not selected as the mother screen as described above. The audio signal corresponding to the video signal selected as the magnetic screen among the audio signals corresponding to the two video signals will be output through the line and jack 29 for connecting the magnetic screen audio transfer switch 27 and the earphone.

Therefore, in the present embodiment, like the above-described second embodiment, when watching two screens at the same time in a video device having a simultaneous picture function, the audio signal for the selected mother screen among each broadcast signal or external video signal through two tuners The speaker and the earphone can be connected through the line and jack 28, the audio signal for each of the broadcast signal or the external video signal selected through the two tuners are connected to the line and jack of the earphone ( 29) to listen.

[Example 4]

5 is a block diagram of a sub picture audio listening apparatus of a video apparatus according to a fourth embodiment of the present invention. This embodiment relates to a sub picture audio listening apparatus of a video device using a VCR as a video device.

As can be seen from the figure, the VCR according to this embodiment is formed of a tuner / IF circuit 11, two lines 12 and 13 and two play / write select switch circuits 49 and 5). It has three input signal sources. In the present embodiment, in the simultaneous picture mode, either the video signal from the tuner / IF circuit 11 or the external video signal from the line 12 and the playback / recorded video selection switch 49 are used. The playback video signal from is formed to form a mother screen and a child screen (or a child screen and a mother screen).

First, the video signal for the broadcast signal from the tuner / IF circuit 11 and the external video signal provided from the video input line 12 are transmitted to the TV / line video switching (or selection) switch 46. At this time, the video switching switch 46 provides the PIP circuit 15 of the next stage as a first video input, the video signal selected based on the TV / line switching (or selection) control signal from the microcomputer (not shown). That is, the video switching switch 46 selects the video signal from the tuner / IF circuit 11 as the first video input when the contact ab is connected to the PIP circuit 15 according to the TV / line switching control signal. When the contact ac is connected, the external video signal from the line 12 is selected as the first video input and provided to the PIP circuit 15. Also, the reproduction / recorded video selection switch circuit 49, from the recording / reproducing circuit (not shown), is connected to the reproduction selection position PB based on a control signal from a microcomputer not shown. The reproduced video signal is provided to the next stage PIP circuit 15 as a second video input.

Therefore, in the PIP circuit 15, based on the parent / child switching, PIP on / off, and recording / playback mode selection control signals from the microcomputer, the video switching switch 46 and the playback / recorded video selection switch circuit are described. Each video signal provided from 49 is formed as a video signal of a mother / child screen (or a mother / child screen) and provided to the monitor of the TV through the output line 23.

On the other hand, the audio signal provided from the tuner / IF circuit 11 and the audio input line 13 is transmitted to the TV / line audio switching (or selection) switch 47. Then, the voice signal selected by this voice switching switch 47 is transmitted as the first voice input to the sub picture voice switching switch 57 and the reproduction / recording voice selection switch circuit 59 according to the present embodiment. Therefore, in the simultaneous picture mode, when the reproduced video signal from the tuner / IF circuit 11 or the external video signal from the line 12 is selected as the mother screen and the video signal is selected as the child screen, the illustration is omitted. Based on the parent / child switching control signal from the microcomputer, the contact a of the reproduction / recording audio selection switch circuit 59 is connected to the contact EE and the sub-screen audio switching switch 57 is connected to the contact ac. As a result, the audio signal from the tuner / IF circuit 11 or the external audio signal from the line 12 is output to the speaker 25 through the line 24 as an audio signal corresponding to the parent screen and at the same time the external signal Is output through the line and jack 28 that can be connected to the earphone, and the playback video signal is output through the line and jack 2 that can be connected to the earphone as an audio signal corresponding to the magnetic screen.

Contrary to the above, when the reproduced video signal is selected as the parent screen in the simultaneous picture mode and the video signal from the tuner / IF circuit 11 or the external video signal from the line 12 is selected as the own picture, Based on the parent / child switching control signal from the omitted microcomputer, the contact a of the playback / record audio selection switch circuit 59 is connected to the playback selection switch PB and the sub-screen audio switching switch 57 is the contact ab. Leads to. As a result, the reproduced video signal is output to the speaker 25 through the line 24 as an audio signal corresponding to the mother screen, and also through the line and the jack 28 to which the earphone can be connected from the outside, and the tuner / IF The video signal from the circuit 11 or the external audio signal from the line 12 is output through a line and a jack 29 to which earphones can be connected as audio signals corresponding to the own screen.

On the other hand, the reproduction / recording voice selection switch circuit 59, which is used as the parent picture voice transmission switch in the simultaneous picture mode, that is, the PIP in the on / off mode as described above, is operated from the microcomputer (not shown) in the PIP off mode. Based on the switching control signal of, the contact point a is connected to the reproduction selection position PB, whereby the reproduction video signal is output to the speaker 25 through the line 24 and at the same time the external earphone connection is possible. And jack 28 is output.

Therefore, according to the present embodiment, in a system employing a VCR as a video device having a simultaneous picture function, when one wants to watch two screens at the same time, any one of a broadcast signal or an external video signal through a tuner built in the VCR itself is used. And the audio signal for the selected mother screen of the reproduced video signal can be heard through the line and jack 28 to which the speaker and the earphone can be connected, and the audio signal for the selected child screen among the broadcast signal, the external video signal or the reproduced video signal is Listening is possible through the line 29 and jack 29 that can be connected to the earphone.

On the other hand, in the present embodiment, when the user wants to record the video signal input through the tuner / IF circuit 11 on a video tape (not shown) mounted on the VCR, the control signal from the microcomputer not shown is shown. According to this, the contact ab of the video switching switch 46 is connected and the playback / recording video selection switch circuit 49 is set to the recording position EE so that the video signal in the corresponding broadcast signal to be recorded is recorded on the videotape. Similarly, since the contact ab of the audio switching switch 47 is connected and the play / record audio selection switch circuit 59 is set to the recording position EE, the audio signal corresponding to the video signal in the corresponding broadcast signal to be recorded is recorded. Written on tape.

[Example 5]

6 is a block diagram of a sub picture voice listening apparatus according to a fifth embodiment of the present invention. This embodiment relates to a sub picture audio listening apparatus according to the present invention which uses a TVCR as a video device. As can be seen from the figure, the TVCR according to the present embodiment has four input signal sources formed of two tuner / IF circuits, an external video input line, and a play / write select switch circuit.

In the present embodiment, in the simultaneous picture mode, either one of the video signals from the two tuner / IF circuits 21 and 22 or the external video signal from the line 12 and the playback / recording video selection switch ( The playback video signal from 49 is configured to form a mother screen and a mother screen (or a mother screen and a mother screen). That is, in this embodiment, there are three first image input signal sources and one second image input signal source.

Also, the present embodiment differs from the above-described fourth embodiment in that the broadcast signal from the first tuner / IF circuit (or the second tuner / IF circuit) is selected as the mother screen or the child screen in the simultaneous picture mode. It is possible to record broadcast signals received via other second tuner / IF circuits (or first tuner / IF circuits) that are not selected at the same time while being displayed on the video tape mounted in the VCR. The process will be described in detail below.

Referring to FIG. 6, a broadcast signal received through an antenna is first distributed through a divider 20 to provide first and second tuner / IF circuits 21 and 22, respectively. Then, each video signal separated from the broadcast signal through the first and second tuner / IF circuits 21 and 22 is provided to a corresponding pair of first video transfer switches 36 and 37, respectively. Each voice signal separated from is provided to a corresponding pair of first voice transfer switches 26 and 27, respectively. In addition, the pair of first and second image transfer switches 36 and 37 are simultaneously provided with an external video signal input through the line 12, and the pair of first voice transfer switches 26 and 27 are lined up. External audio signals corresponding to external video signals input through 13 are provided, respectively.

Therefore, the pair of first image transfer switches 36 and 37 are provided from the first and second tuner / IF circuits 21 and 22 on the basis of a switching control signal from a microcomputer not shown in the simultaneous picture mode. The video signal selected from each of the video signals and the external video signals input from the line 12 is transferred to the corresponding pair of second image transfer switches 66 and 67.

Herein, the second image transfer switch 66 uses one of the two image signals selectively transmitted from each of the first image transfer switches 36 and 37 based on the switching control signal from the microcomputer as the first input image. Provided to the PIP circuit 15 of the stage, and the second image transfer switch 67 corresponds to the image recording mode when the reproduction / record image selection switch circuit 49 is set to the recording position EE. Based on the switching control signal from the microcomputer, one of the two video signals selectively transmitted from each of the first video transfer switches 36 and 37 is transferred to a video recording circuit (not shown) so that the video signals are recorded on the videotape. do. Of course, in the recording mode of such a video signal, the audio signal corresponding to the recorded video signal is recorded on the video tape together with the recorded video signal through the playback / recording audio selection switch circuit 59 described later.

On the other hand, when the playback / record video selection switch circuit 49 is set to the playback position PB on the basis of the switching control signal from the microcomputer in the simultaneous picture mode, the video signal to be played back is transferred to the PIP circuit 15 and It is selected as the screen or subscreen. More specifically, when a video signal selectively transmitted from each of the first and second video transfer switches 36 and 37 is selected as the mother screen based on a control signal from the microcomputer based on the parent / child switching control signal, The reproduced video signal from the reproduced / recorded image selection switch circuit 49 will be selected as the own screen, and in the reverse case, the reproduced video signal from the reproduced / recorded image selection switch circuit 49 will be selected as the parent screen. .

On the other hand, each voice signal separated from the broadcast signal through the first and second tuner / IF circuits 21 and 22 is provided to a corresponding pair of first voice transfer switches 26 and 27, respectively, and is also provided with a line 13. The external audio signal corresponding to the external video signal inputted through) is provided to one first voice transfer switch 26. Here, the first voice transfer switch 26 is broadcasted from the first and second tuner / IF circuits 21 and 22 based on a switching control signal from the microcomputer based on the parent / child switching signal. The voice signal corresponding to the selected video is selected from the corresponding voice signals of the signal and the external voice signals input through the line 13 and is transferred to the second voice transfer switch 56 of the next stage.

In addition, when the reproduction / recording video selection switch circuit 49 is set to the recording position EE in response to the video recording mode, the first audio transmission number position 27 is based on a switching control signal from the corresponding microcomputer. Selects and reproduces one of the audio signals provided from the first and second tuner / IF circuits 21 and 22 and the external audio signals input through the line 13, that is, the audio signal corresponding to the video selected for recording. The audio signal is transmitted to the audio recording circuit (not shown) via the recording / audio selection switch circuit 59 so that the corresponding audio signal is recorded on the video tape along with the video signal. That is, when the video signal from the first tuner / IF circuit 21 is selected as the recorded video, the contact ab of the first video transfer switch 27 is connected, and the second tuner / IF circuit 22 as the recorded video is connected. When the video signal from is selected, the contact ac of the first video transfer switch 27 is connected. When the external video signal from the line 12 is selected as the video recording, the contact ad of the first video transfer switch 27 is Connected.

On the other hand, the second voice transfer switch 56 is a voice signal and a line provided from the first and second tuner / IF circuits 21 and 22 based on a switching control signal from the microcomputer based on the parent / child selection signal. Provides a voice signal corresponding to the selected mother screen among the external voice signals input through the 13 to the output of the line 25 and the jack 28 which can be connected to the speaker 25 and the external earphones or the first and second tuners / The voice signal provided from the IF circuits 21 and 22 and the external voice signal input through the line 13 are selected as a magnetic screen to an output of a line and a jack 29 which can be externally connected.

More specifically, when any one of the video signals other than the video signal other than the playback video signal is selected as the mother screen in the PIP mode, the contact ab of the second audio transmission switch 56 is connected to the selected mother screen image. When the corresponding audio signal is output to the speaker 25, the line and the jack 28, and the reproduction video signal is selected as the mother screen, the contact ac of the second audio transmission switch 56 is connected and thus other than the reproduction video signal. An audio signal corresponding to the sub-screen image selected from the image signals is output to the line and the jack 29. At this time, in the PIP circuit 15, the playback video signal provided from the playback / record video selection switch circuit 49 is selected as the mother screen (or the child screen) and is selectively provided from the first video transfer switches 36 and 37. The signal will be selected as the parent screen (or parent screen).

On the other hand, the second audio transfer switch 57 is a playback video provided from the playback / recording audio selection switch circuit 59 based on a switching control signal from the microcomputer based on the mother / child selection signal in the PIP mode. The signal is provided to the speaker 25 and the output of the line and jack 28 that can be connected to the earphone from the outside or to the output of the line and jack 29. That is, when the reproduction video signal is selected as the mother screen in the PIP mode, the second voice transfer switch 57 connects the contact ab so that an audio signal corresponding to the selected mother screen reproduction video is lined with the speaker 25. And an audio signal corresponding to the sub-screen image selected from the video signal other than the reproduced video signal when one of the video signals other than the reproduced video signal is output to the jack 28 and the contact ac is connected. The signal is output to the line and jack 29.

Accordingly, according to the present embodiment, in a system employing a TVCR as a video device having a simultaneous picture function, when a user wants to watch two screens at the same time, each broadcast signal, an external video signal, or a playback video signal selected through two tuners is selected. The audio signal for the screen can be listened through a line and a jack 28 for connecting the speaker and the earphone, and the audio signal for the selected child screen among the two broadcast signals, the external video signal or the playback video signal can be connected to the earphone. Listen through line and jack 29.

In addition, in the present embodiment, as in the above-described fourth embodiment, each broadcast signal or external video signal (including audio) received through two tuners can be recorded on a videotape.

As described above, according to the present invention, by adopting the sub picture voice listening device according to the present invention, any viewer can simultaneously listen to the voice of the sub picture as well as the voice of the sub picture. have. In addition, the apparatus for listening to a child screen voice according to the present invention can listen to a voice corresponding to the screen selected as the child screen even if the mother / child screens are switched to each other by a mother / child switching method.

Claims (12)

Image apparatus having a simultaneous picture function of synchronizing a plurality of video signals provided from a plurality of signal sources through predetermined signal processing synthesizing means, and then selectively synthesizing them into a mother screen or a child screen and simultaneously displaying them on a monitor A first audio switching means for selecting an audio signal corresponding to the selected mother screen from among the plurality of video signals provided from the plurality of signal sources, based on a selection control signal for selecting the mother screen and the mother screen; (16); Speaker and line jack means (25, 28) for outputting an audio signal corresponding to the selected video signal from the first audio switching means to the mother screen; Second audio switching means (17) for selecting an audio signal corresponding to the selected sub picture from among the plurality of video signals provided from the plurality of signal sources based on a selection control signal for selecting the main picture and the sub picture; ); And a sub picture audio output means (29) for outputting a voice signal corresponding to the selected sub picture provided from the second voice switching means to the outside. 2. The external input line (12, 13) according to claim 1, wherein the video device is a TV, and the plurality of signal sources are in line with one tuner / IF circuit (11) for receiving a radio broadcast signal. The sub picture voice listening device of a video device having a simultaneous picture function, characterized in that consisting of). The apparatus of claim 2, wherein the sub screen audio output means comprises a line and a jack which can be connected to an earphone from the outside. The apparatus of claim 1, wherein the video device is a TV including a divider 20 for distributing a broadcast signal received through an antenna, and the plurality of signal sources are two tuners / IFs respectively inputting the distributed broadcast signal. A sub picture audio listening apparatus of a video device having a simultaneous picture function, characterized in that the circuit (21, 22). The apparatus of claim 4, wherein the sub screen audio output unit (29) comprises a line and a jack for connecting an earphone to the outside. The apparatus of claim 1, wherein the video device is a TV including a divider 20 for distributing a broadcast signal received through an antenna, and the plurality of signal sources are two tuners / IFs respectively inputting the distributed broadcast signal. An external screen audio listening device of a video apparatus having a simultaneous picture function, characterized in that an external input terminal (12, 13) of video and audio connected in line with a circuit (21, 22) is configured. The apparatus of claim 6, wherein the sub screen audio output unit (29) comprises a line and a jack which can be connected to an earphone from the outside. Synchronize at least two video signals selected from each of the video signals provided from the at least two signal sources and the reproduced video signals provided from the playback / recording side through a predetermined signal processing synthesizing means, and then selectively respectively display the mother screen or the child screen. 16. A video apparatus having a simultaneous picture function that is simultaneously synthesized and displayed on a monitor, wherein the two signals are based on a control signal for selecting a video signal from any one of the two signal sources for the simultaneous picture display on the monitor. First audio switching means 47 for selecting an audio signal corresponding to the selected video signal among two video signals provided from a circle: the first audio switching based on a selection control signal for selecting the mother screen and the sub picture The selected audio signal from the means and provided from the reproduction / recording side A sound signal corresponding to the selected mother screen is selected from a reproduction sound signal corresponding to a live video signal, and the audio signal corresponding to the video signal selected for recording provided from the first audio switching means in the recording mode is reproduced. / Second audio switching means 59 provided to the recording side; Speaker and line jack means (25,28) for outputting a voice signal corresponding to the selected mother picture provided from the second voice switching means; The selected one of the reproduced audio signal corresponding to the selected audio signal from the first audio switching means and the reproduced video signal provided from the reproduction / recording side, based on a selection control signal for selecting the mother screen and the child screen; Third audio switching means 57 for selecting a voice signal corresponding to the screen; And a sub picture audio output means (29) for externally outputting a voice signal corresponding to the selected sub picture provided from the third voice switching means. 9. The external input line (12, 13) of claim 8, wherein the video device is a VCR, and the two signal sources are connected in line with one tuner / IF circuit (11) for receiving a radio broadcast signal. And the sub-screen audio output means (29) is a sub-screen audio listening device of a video device having a simultaneous screen function, characterized in that the external and the line is connected to the jack and the jack. At least two video signals selected from one of a plurality of video signals provided from a plurality of signal sources and a reproduced video signal provided from a reproduction / recording side are synchronized through predetermined signal processing synthesizing means, and then selectively In a video device having a simultaneous picture function, which is synthesized into a screen or a sub picture and simultaneously displayed on a monitor, recording in a plurality of audio signals respectively corresponding to a plurality of video signals provided from the plurality of signal sources in a recording mode. Audio recording switching means (27,59) for selecting an audio signal corresponding to the video signal to be provided to the reproduction / recording side; A first audio for selecting an audio signal corresponding to a video signal selected from the plurality of video signals based on a control signal for selecting a video signal from any one of the plurality of signal sources for simultaneous display to the monitor; Switching means 26; A first voice for determining whether the selected voice signal output from the first voice switching means is the voice signal corresponding to the mother screen or the voice signal corresponding to the sub picture based on the selection control signal for selecting the mother screen and the sub picture; Sound judgment / switching means 56; On the basis of a selection control signal for selecting the mother screen and the child screen, it is determined whether the playback audio signal corresponding to the playback video signal provided from the playback / recording side is the mother screen corresponding audio signal or the child screen corresponding audio signal. Second voice judgment / switching means 57 for judging; Speaker and line jack means (25,28) for outputting a voice signal corresponding to the selected parent picture provided from the first and second voice determination / switching means; Sub picture audio of an image device having a simultaneous picture function, comprising a sub picture audio output means 29 for outputting a voice signal corresponding to the selected sub picture provided from the first and second voice determination / switching means to the outside Listening device. 12. The apparatus of claim 10, wherein the sub screen audio output unit comprises a line and a jack which can be connected to an earphone from the outside. 12. The apparatus of claim 10 or 11, wherein the video device is a TVCR including a divider 20 for distributing a broadcast signal received through an antenna, and the plurality of signal sources are two for respectively inputting the distributed broadcast signal. A sub picture audio listening device of a video device having a simultaneous picture function, characterized in that the external input line (12, 13) of the video and audio connected to the tuner / IF circuit (21, 22) of the line.