JPH10229529A - Display device for displaying plural screens and its sound output method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for displaying plural screens and its sound output method in which a sound corresponding to a desired screen selected among plural screen displays is immediately heard. SOLUTION: A figure shows a state displaying that at present, a display part 11 is divided to the left and the right, a conventional broadcast on the air of broadcasting at present is displayed as it is on a slave screen (left) and a 'still image' during recording on an information recording medium or the like is displayed on a master screen (right) being a major screen. A sound of a 'moving image' being the slave screen (left) is outputted as a sound output of a speaker 6 in this case. When a master screen key 15' of a remote control part 15 is operated to switch the master screen (right) of the display part 11 from the 'still image' to the 'moving image', the sound output of the speaker 6 is immediately switched to the sound of the master screen (right) which changes from the 'still image' to the 'moving image'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen display device such as a television receiver and an audio output method therefor. More specifically, the present invention relates to a method of outputting audio corresponding to a desired screen selected from a multi-screen display. The present invention relates to a multi-screen display device that promptly sounds and a sound output method thereof.

[0002]

2. Description of the Related Art In recent years, compound products and multifunctional products have appeared due to the development of electronic technology and an increase in user needs. For example, in a television receiver, a wide-screen television or a high-definition (H
DTV) has been released and is widely used. In such wide-screen televisions, the two-screen display and Picture And Pict (Picture And Pict
ure)).

On the other hand, recording media have been remarkably developed, and recording devices using disk-shaped recording media have been increasing in capacity and processing speed. Rewritable magneto-optical disks (MOs) and hard disks (HDs) and digital video disks (DVDs) for recording / reproducing data by changing the light intensity have also been developed. In addition, these information recording media are built in a television receiver, and “MP
A multi-screen display device capable of recording / reproducing a "moving image" of "EG2" level for about 2 hours has also been developed and has been partially sold.

In the conventional audio output method of a multi-screen display device capable of displaying two screens, a main screen video input as shown in FIG. 4B is displayed on a main main screen (right), and a child screen is displayed. In a two-screen display in which the video input is displayed on the sub-screen (left), the audio output when switching from the one-screen display to the two-screen display is usually the audio of the main screen video (hereinafter simply referred to as “main audio”). Is written). In order to switch the audio output to the audio of the sub-screen video (similarly described as “sub-audio”), the main screen (right) and the sub-screen (left) are switched by a control signal as shown in FIG. By performing the operation, the main voice and the sub voice are exchanged together.

In a conventional multi-screen display device capable of displaying two screens, the video of the main screen (right) and the video of the child screen (left) are often both "moving images", and the above-described audio output is performed. The method was not as problematic as the difference. However, the viewer has a large amount of information recording medium and displays a "moving image" on the child screen (left) and a "still image" on the main parent screen (right). With the development of a multi-screen display device that records the video on an information recording medium, the conventional audio output method has a problem that the operation of replacing the audio output is complicated and undesirable for the viewer. The present invention relates to a "recording / reproducing apparatus and method" described in Japanese Patent Application No. 8-111443 filed by the present applicant earlier.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the problem is that a complicated operation is required to listen to a sound corresponding to a desired screen in a conventional multi-screen display device. An object of the present invention is to provide a multi-screen display device which solves a necessary problem and improves the convenience of a user, and a sound output method thereof.

[0007]

In order to solve the above-mentioned problems, a multi-screen display device according to the present invention comprises: a video display means capable of simultaneously displaying two or more screens on a single screen; A sound generator for outputting a sound corresponding to one displayed screen and a desired screen such as a screen changed from a "still image" to a "moving image" among a plurality of screens displayed on the video display means are selected. When a desired screen is selected by the video selecting means and the video selecting means, sound corresponding to the desired screen is output from the sounding means, and when the desired screen is released (from “moving image” to “still image” And control means for controlling the sound to return to the original sound.

Further, according to the audio output method of the multi-screen display device of the present invention, a video display step of simultaneously displaying a plurality of screens on one screen, and a sound output for outputting audio corresponding to one screen displayed in the video display step. And a video selecting step of selecting a desired screen such as a screen changed from a “still image” to a “moving image” among the plurality of screens displayed in the video displaying step. When the desired screen is selected, the sound corresponding to the desired screen is output instantaneously, and when the desired screen is released (when returning from “moving image” to “still image”), instantaneous And a control step of controlling to return to the original sound. Thus, the viewer can change from a “still image” to a “moving image” without performing a troublesome operation such as screen switching.
Thus, it is possible to immediately listen to a sound corresponding to a desired screen such as a screen that has been changed to.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

First, a television system incorporating an information recording medium will be described as an example of a multi-screen display device of the present invention with reference to FIG. FIG. 1 is a block circuit diagram showing a configuration of a television system according to the present invention.

[0011] The television system according to the present invention comprises an NTS
It comprises a tuner 1 for C, BS, CS and digital satellite broadcasting, a selector 2, a decoder 3, an audio processing unit 4, an audio selection unit 5 and a speaker 6, which are characteristic features of the present invention. The output of the decoder 3 is connected to the A / D converter 7,
Further, a video processing unit 8, a D / A converter 9, a video selection unit 10 in which the signal processing block 103 is interpolated, and a display unit 11 for displaying a desired image on a multi-screen or two screens, for example, 1. An information recording medium 12 comprising a 1.2 GByte hard disk (HD), a control unit (CPU) 13 comprising a microcomputer, etc., and a remote control (hereinafter simply referred to as "remote control") receiving unit 1
4 and a remote controller 15 that mainly operates the television system of the present invention.

The operation of the television system of the present invention configured as described above will be described.

An analog or digital broadcast signal received by the tuner 1 is input to a selector 2. The selector 2 selects a broadcast signal in response to the control of the control unit 13 to obtain designated data. The audio signal selected by the selector 2 is demodulated by the audio processing unit 4, the audio selection unit 5 performs an audio signal output process described later, and then outputs the desired audio from the speaker 6.

Similarly, in the video signal system, the selector 2
If the broadcast signal selected in (1) is an analog broadcast, the received content is demodulated by the decoder 3 and subjected to intermediate processing, A / D converted by the A / D converter 7, and then transmitted to the video processing unit 8. The video processing unit 8 converts the input broadcast signal into an information recording medium 12.
Encoding is performed to encode the data into a recording format that conforms to.

However, a digital broadcast signal received by a digital satellite broadcast tuner or the like is recorded on the information recording medium 12 without being subjected to an A / D conversion process or an encoding process because it does not require an encoding process. The recorded contents of the information recording medium 12 are decoded (decoded) such as decompression in the video processing unit 8.
Is displayed on the display unit 11 through control by the D / A converter 9 and the video selection unit 10. Although details will be described later, the signal processing block 103 in the video selection unit 10 is provided only on the main screen (right) side, and the information recording medium 12
Is displayed on the main screen (right).

The remote controller 15 transmits control data converted into infrared rays or the like. The transmitted control data is received by the remote control receiver 14 and sent to the controller 13. The control unit 13 performs a decoding process according to the remote control format and controls the television system of the present invention.

Next, an example of the function of the television system of the present invention will be described with reference to FIG. FIG. 2 is a schematic diagram showing a display example in the television system of the present invention. Note that parts common to those described in the block circuit diagram of FIG. 1 are denoted by the same reference numerals.

FIG. 2 is a two-screen display example shown as an example of the function of the television system of the present invention. At present, the display unit 11 is divided into right and left, the normal broadcast currently being broadcast is displayed as it is on the child screen (left), and recorded on the information recording medium 12 (see FIG. 1) on the main parent screen (right). (For example, in order to record the contents of a broadcast when the viewer is away from the room, the parent screen (right) is temporarily changed to a “still image” and recorded on the information recording medium 12. State). At this time, the sound of the “moving image” which is the child screen (left) is output as the sound output of the speaker 6.

Then, when the viewer operates the parent screen key 15 'of the remote controller 15 to return to the seat and switches the parent screen (right) of the display unit 11 from "still image" to "moving image", That is, when the playback image recorded on the information recording medium 12 is displayed as a “moving image” retroactively, the audio output of the speaker 6 is instantaneously changed from the “still image” to the “moving image”.
Switch to the sound of the main screen (right) that has changed to.

[0020] Again, the viewer is referred to the main screen of the display unit 11 (right).
Is switched from "moving image" to "still image", the sound output of the speaker 6 is similarly switched to the sound of the child screen (left) displaying "moving image".

Next, the details of the audio output method in the television system of the present invention will be described with reference to FIG. 3A and 3B are diagrams for explaining an audio output method in the television system of the present invention. FIG. 3A is a block diagram illustrating an audio signal output process, and FIG. 3B is a block diagram illustrating a video signal output process.

3A, a main sound input (L / R) 51 and a sub sound input (L / R) 52 are input to a changeover switch 53, and the control unit 13 ( The control signal 54 output from FIG.
To control the changeover switch 53 to output sound (L / R)
55 is selected.

Similarly, in the video selection unit 10 as shown in FIG. 3B, the main screen video input 101 and the sub-screen video input 102 are input to the video selection unit 10, and the control unit 13 (see FIG. 1). Control signal 10 for video output from
4 controls the signal processing block 103 of the video selection unit 10 to control the video output to be output to the main screen (right) 105.

Normally, the audio output (L / R) 55 output when the two-screen mode is set is the main audio input (L / R).
R) 51, but the signal processing block 1 in the video system
03 is controlled by the control signal 104 and when the video output of the main screen (right) 105 is set to “still image”, the changeover switch 53 is simultaneously switched by the control signal 54 and the audio output (L / R) 55 is set. It is controlled so as to be the sub sound input (L / R) 52. The display image at this time is a state where the parent screen (right) 105 is a “still image” and the child screen (left) 106 is a two-screen “moving image”.

From the above state, when the video signal processing block 103 is again controlled by the control signal 104 and the video output of the main screen (right) 105 is changed to "moving image", the audio system changeover switch 53 is also turned on. Switching is performed by a control signal 54, and the audio output (L / R) 55 is controlled to be the main audio input (L / R) 51. Thus, the viewer can listen to the sound of the main screen (right) changed from, for example, a “still image” to a “moving image” without a troublesome operation.

The present invention is not limited to the above-described embodiment, but can employ various embodiments. For example, in the present embodiment, a television system incorporating an information recording medium has been described as an example, but the present invention can be applied to any multi-screen display device such as a related projector device or video tape recorder (VTR). In addition, the display mode in the television system is not limited to two screens, and in a multi-screen display device having three or more screens, one screen is regarded as a “moving image” and the other screen is treated as a “still image”, that is, “moving image”. It is possible to apply the present invention by specifying the sound of "image" as a desired sound. Further, it goes without saying that the present invention can be developed into various forms without being limited to the embodiment described above.

[0027]

As described above, according to the multi-screen display apparatus and the audio output method of the present invention, for example, when the viewer switches the video of the main screen from "still image" to "moving image", The sound of the desired main screen is instantly switched and output from the speaker. Thus, the viewer can immediately hear the sound corresponding to the desired screen without going through a troublesome operation.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram illustrating a configuration of a television system according to the present invention.

FIG. 2 is a schematic diagram showing a display example in the television system of the present invention.

3A and 3B are diagrams illustrating an audio output method in the television system of the present invention, in which FIG. 3A is a block diagram illustrating an audio signal output process, and FIG. 3B is a block diagram illustrating a video signal output process. .

4A and 4B are diagrams illustrating a sound output method in a conventional television system capable of displaying a plurality of screens, and FIG.
FIG. 3 is a block diagram illustrating an output process of an audio signal, and FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tuner, 2 ... Selector, 3 ... Decoder, 4 ... Audio processing part, 5 ... Audio selection part, 6 ... Speaker, 7 ... A / D conversion, 8 ... Video processing part, 9 ... D / A conversion, 10 ... Image selection unit, 11 display unit, 12 information recording medium, 13 control unit (CPU), 14 remote control reception unit, 15 remote control unit, 51 main audio input (L / R), 52 sub audio input (L / R), 53 ... switch, 54, 104 ...
Control signal, 55 ... Audio output (L / R), 101
… Main screen video input, 102… Sub screen video input, 103…
Signal processing block, 105: parent screen (right), 106: child screen (left)

Claims (4)

[Claims] 1. A video display means capable of simultaneously displaying a plurality of screens on one screen, a sounding means for outputting sound corresponding to one screen displayed on the video display means, and a sound display means displayed on the video display means. Video selection means for selecting a desired screen from among a plurality of screens, and when a desired screen is selected by the video selection means, outputs a sound corresponding to the desired screen from the sounding means, Control means for controlling to return to the original sound when the screen is released. 2. The desired screen selected by the video selection means is a screen which has been changed from a “still image” to a “moving image” among a plurality of screens displayed on the video display means, and is released. The multi-screen display device according to claim 1, wherein the desired screen is a screen changed from a "moving image" to a "still image". 3. A video display step of simultaneously displaying a plurality of screens on one screen, a sounding step of outputting sound corresponding to one screen displayed in the video display step, and a plurality of voices displayed in the video display step A video selection step of selecting a desired screen from the screens, and further, when a desired screen is selected in the video selection step, audio corresponding to the desired screen is output instantaneously, And a control step of immediately returning to the original sound when the desired screen is released. 4. The desired screen selected in the video selecting step is a screen changed from a “still image” to a “moving image” in a plurality of screens displayed in the video displaying step, and is released. 4. The audio output method according to claim 3, wherein the desired screen is a screen changed from a "moving image" to a "still image".