JPH11127424A - Television broadcasting method and device therefor and television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To view a famous scene without losing it only by listening to a voice even when a viewer does not concentrate on a screen. SOLUTION: A voice signal inputted from a voice signal input terminal 12 is distributed to two voice signals 22A and 23A and one voice signal 22A and a video signal 21V inputted from a video signal input terminal 11 are delayed in a constant time by a signal delay device 13. Also, since the other distributed voice signal 23A is not processed in the signal delay device 13, a time is relatively preceded to a video signal 23V, and a voice signal 25A. Each of the signals obtained in such a way is multiplexed by a multiplex device 14, modulated and amplified by a transmitting device 15 to be broadcast. Thus, a viewer can perceive the change of a scene by listening to the received preceding voice even when the viewer does not view a screen and view a desired scene without losing it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a television broadcasting method,
More specifically, the present invention relates to a television broadcasting apparatus and a receiver, and more particularly, to a television broadcasting method and a television broadcasting apparatus for simultaneously multiplexing a video signal and an audio signal synchronized with each other, and multiplexing an audio signal whose time has preceded them. And a television receiver for receiving such a broadcast.

[0002]

2. Description of the Related Art When watching a television program, the user sometimes misses a scene he wants to watch while watching another place at an important time.
For example, in a program such as a sports broadcast, where a famous scene such as a scoring scene does not occur at the same time, a program in which a monotonous scene may continue may easily be overlooked. Great scenes are something you don't want to miss. However, some people feel physical discomfort, such as tired eyes and waist, while watching the program from time to time without overlooking the famous scene. Also, sports news digests are unsatisfactory, so some people would like to watch a live broadcast, but at the same time, do not waste time doing other things during the broadcast. On the other hand, there is a television receiver provided with a playback function for reviewing a scene that has been missed. By using this receiver, a program can be watched retrospectively by performing a predetermined operation.

[0003]

However, even if the playback function is provided, the situation that a famous scene is missed remains unchanged. Therefore, the viewer performs an operation to execute the playback function after noticing that he or she missed the famous scene. In order to perform such operations, you must be prepared to operate the receiver,
In the first place, such an operation is troublesome. In addition, during playback by the playback function, the past video and audio are interrupted, the playback time fluctuates and the screen configuration changes, causing confusion for the viewer and the viewer who did not miss the famous scene Viewing is hindered, which is not desirable.

[0004] The present invention has been made in view of the above-described circumstances, and enables a television broadcast that allows a viewer to view a famous scene without missing a scene simply by listening to audio, even if the viewer is not concentrated on the screen. It is an object to provide a method, a television broadcasting device, and a television receiver.

[0005]

According to a first aspect of the present invention, there is provided a video signal, a synchronous audio signal synchronized with the video signal, and an audio signal identical to the synchronous audio signal. The feature is to multiplex broadcast with a preceding audio signal that is ahead of the screen, and to detect in advance that the scene will change just by listening to the preceding audio even if the viewer is not concentrated on the screen If the user goes to the television screen when he notices that the scene he wants to watch while listening to the preceding sound, a television broadcasting method that allows the user to view the scene he wants without missing the scene is obtained.

According to a second aspect of the present invention, in the first aspect of the present invention, the synchronous audio signal and the preceding audio signal are individually allocated to one of a main audio channel and a sub audio channel of a television broadcast and broadcast. The viewer performs a sound switching operation of the television receiver, so that the normal sound (for example, the main sound) and the preceding sound (for example,
Sub-voice) or both.

According to a third aspect of the present invention, an original video signal and an original audio signal synchronized with the original video signal are input, and a broadcast video signal to be broadcast is obtained from the input original video signal and the original audio signal. And a broadcast synchronous audio signal synchronized with the broadcast video signal and a broadcast preceding audio signal which is composed of the same audio signal as the broadcast synchronous audio signal and temporally precedes the broadcast synchronous audio signal. A broadcast signal generation unit, a multiplexing unit that multiplexes the broadcast video signal, the broadcast synchronization audio signal, and the broadcast advance audio signal obtained by the broadcast signal generation unit to generate a multiplexed signal; Transmitting means for modulating and transmitting the obtained multiplexed signal, so that even if the viewer is not concentrated on the screen, he / she can detect in advance that the scene will change just by listening to the preceding sound. Can be upfront If you are celebrating on the TV screen when you notice that came a scene you want to watch while listening to the voice, in which TV broadcasting apparatus which performs a television broadcast that can be viewed without missing a scene you want to see is thus obtained.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the broadcast signal generating means distributes the input original audio signal to two identical original audio signals, and the input original video signal. A signal delay unit for delaying the signal and one of the two original audio signals obtained by the distributing unit; and a video signal and an audio signal obtained by the signal delay unit. Generating the normal video signal, the normal audio signal, and the preceding audio signal, wherein the broadcast video signal and the broadcast synchronous audio signal are used, and the other original audio signal obtained by the distribution unit is used as the preceding audio signal. That is, specific means for performing the above operations are provided.

According to a fifth aspect of the present invention, in the first aspect, a storage medium storing a video signal and an audio signal is used as a source, and the signal generating means outputs the broadcast video signal and the broadcast synchronization signal from the storage medium. The video signal and the broadcast preceding video signal are simultaneously read and generated. Even when a storage medium such as a tape or a disc is used as a source of the video signal and the audio signal, the signal is read from the storage medium. , A normal video signal, a normal audio signal, and a preceding audio signal.

According to a sixth aspect of the present invention, there is provided a video signal, a synchronous audio signal synchronized with the video signal, the same audio signal as the synchronous audio signal, and temporally preceding the synchronous audio signal. The receiver has a function of receiving broadcast waves in which a preceding audio signal is multiplex-broadcast, and capable of selectively outputting the received synchronous audio signal and the preceding audio signal. By performing a sound switching operation on the receiver, a normal sound and a preceding sound can be selected and reproduced and output, so that a television receiver with high convenience for the viewer can be obtained.

According to a seventh aspect of the present invention, the synchronous audio signal comprises a video signal, a synchronous audio signal synchronized with the video signal, and the same audio signal as the synchronous audio signal, and is temporally preceding the synchronous audio signal. It has a function of receiving a broadcast wave in which a preceding audio signal is multiplexed and outputting the received synchronous audio signal and the preceding audio signal to output terminals for individual audio reproducing means. The feature is that audio can be played in a format that is easy for viewers to use,
A television receiver which is highly convenient for viewers is obtained.

The invention of claim 8 comprises a video signal, a synchronous audio signal synchronized with the video signal, and the same audio signal as the synchronous audio signal, and temporally precedes the synchronous audio signal. Receiving means for receiving a broadcast wave multiplexed with a preceding sound signal; sound signal delaying means for delaying the preceding sound signal contained in the broadcast wave received by the receiving means; delay time in the sound signal delaying means It is characterized by having delay time changing means that can change the delay time according to the viewer's preference and program contents, so that a highly convenient television receiver for the viewer can be obtained. is there.

According to a ninth aspect of the present invention, in the sixth or seventh aspect, an audio signal delay unit for delaying the preceding audio signal contained in the received broadcast wave, and a delay time in the audio signal delay unit is changed. And a delay time changing means capable of changing the delay time according to the preference of the viewer and the content of the program, so that a television receiver having high convenience for the viewer can be obtained.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a broadcasting station multiplexes and transmits a video signal and an audio signal synchronized therewith, as well as an audio signal whose time precedes it. The viewer watches a video (hereinafter, referred to as a normal video) while watching the video (hereinafter, referred to as a normal video), and performs a voice switching operation in synchronization with the normal video (hereinafter, referred to as a normal voice) and a voice preceding the normal voice (hereinafter, referred to as a preceding voice). You can hear one or both. In particular, by listening to the preceding sound, the viewer can know the change of the scene in advance. Use of a television receiver that can output the preceding sound and the normal sound to different devices such as speakers and headphones can provide higher convenience to the viewer. For example, a use form in which a preceding sound is heard by a headphone and a normal sound is output from a speaker is conceivable. In this case, a viewer who hears the preceding sound and wants to hear the normal sound only needs to remove the headphones. Also, a viewer in front of the television can normally enjoy normal video and normal audio. The time difference between the preceding sound and the normal sound is basically set by the broadcasting station, but it is also possible to shorten the time difference set by the broadcasting station using a television receiver having sound delay means.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram for explaining an embodiment of the present invention, and shows an example of a broadcasting system in which the present invention is applied to a current television broadcast. In the figure, 10 is a broadcasting device, 11 is a video signal input terminal, 12 is an audio signal input terminal, 13 is a signal delay device, 14 is a multiplexing device, 15 is a transmitting device, 21V is a video signal, 22A is an audio signal, and 23A is Audio signal (preceding audio signal), 24V is video signal (normal video signal), 25A is audio signal (normal audio signal), 26 is NTSC signal, 27 is TV radio wave, 30
Is an antenna and 40 is a television receiver.

A video signal and an audio signal synchronized with the video signal are input to a video signal input terminal 11 and an audio signal input terminal 12, respectively. The audio signal input from the audio signal input terminal 12 is distributed to two audio signals 22A and 23A. One of the divided audio signal 22A and video signal input terminal 1
The video signal 21V input from 1 is delayed for a predetermined time by the signal delay device 13, and is output as an audio signal 25A and a video signal 24V, respectively. On the other hand, the other distributed audio signal 23A does not undergo the processing in the signal delay device 13, so that the time is relatively ahead of the video signal 24V and the audio signal 25A. The video signal 24V obtained in this manner is converted into a normal video signal and an audio signal 25A.
Is a normal audio signal, and the audio signal 23A is a preceding audio signal. The multiplexer 14 multiplexes the normal video signal 24V, the normal audio signal 25A, and the preceding audio signal 23A, and
The signal 26 is converted. At this time, the normal audio signal 25A
Is assigned to the main sound and the preceding sound signal 23A is assigned to the sub sound. The transmitting device 15 modulates and amplifies the NTSC signal 26 and broadcasts it as a television wave 27. The viewer receives the television wave 27 with the antenna 30 and watches the program with the television receiver 40. In this case, the television receiver 40 may be a general television receiver compatible with audio multiplex broadcasting. With this configuration, normal video, normal audio, and preceding audio can be obtained.

Next, how to use the broadcasting system will be described. A broadcasting station broadcasts a program using a television wave obtained by multiplexing a normal video signal, a normal audio signal, and a preceding audio signal using the above-described broadcasting device. The time difference between the preceding audio signal, the normal video signal, and the normal audio signal is set to an appropriate value, for example, 10 seconds. Viewers
When this broadcast is received by a television receiver that supports audio multiplex broadcasting, one or both of the normal audio (main audio) and the preceding audio (sub audio) can be heard simultaneously by performing audio switching operation on the television receiver. Can be. At this time, by listening to the preceding sound, a change in the scene can be detected in advance without looking at the screen. Therefore, while the scene in which the user is not interested is continuing, if the preceding sound is played, it is possible to safely look away from the screen. During that time, you may rest your eyes or change your mind by stretching your shoulders and waist. You can also do other tasks, such as reading, playing shogi, doing push-ups, cleaning the room, or go to another room as long as you can hear the preceding sounds. Despite such a situation, if the user goes to the screen when it detects that a famous scene is coming from the preceding sound, he / she can watch the normal image from the near side without missing the scene he wants to see and by the time difference.
In addition, it is possible to notify a family who has not watched television that a famous scene is coming.

When listening to the preceding sound and the normal sound, it is conceivable to listen to the preceding sound normally, and to hear the normal sound by a sound switching operation when a scene to be watched comes. It is also possible to hear both the normal voice and the normal voice, and only the normal voice when the user is concentrated on the screen. In any case, the only operation required for the viewer is a sound switching operation.

FIG. 2 is a diagram for explaining an example of viewing a program broadcast according to the present invention. Here, a soccer relay program is taken as an example of a broadcasted program, and the progress of normal video, normal audio, and preceding audio is shown in accordance with the flow of time. It is assumed that the viewer is reading a newspaper while turning on the power of the television receiver and listening to the preceding sound. You can immerse yourself in the newspaper while the monotonous scene continues. However, by hearing the excited voice of the announcer or the loud cheers of the stadium from the preceding sound, it is possible to detect that a scene to be viewed such as a scoring scene comes. For example, even if the player turns to the screen for the first time after hearing the scream “goal” of the preceding voice, he can enjoy playing from the centering scene.

Next, a television receiver which can control the delay time of the preceding sound and which is more convenient for the viewer will be described with reference to FIG. FIG. 3 is a block diagram for explaining another embodiment of the present invention, and shows a configuration example of a television receiver. In the figure, 30 is a television antenna, 40 is a television receiver, 41 is a receiving unit, 42 is a separating unit, 43 is an audio delay device, 44 is a delay time changing unit, 45 is an audio output switching unit,
46 is an audio output selection means, 47 is a display device, 48 is a speaker, 49 is a headphone terminal, 50 is an external output terminal,
61V is a normal video signal, 62A is a normal audio signal, 63
A and 64A are preceding audio signals.

The television signal is demodulated by a receiving section 41 and further separated by a separation section 42 into a normal video signal 61V, a normal audio signal 62A, and a preceding audio signal 63A. Will be played. The preceding audio signal 63A is output from the audio delay device 43
Is delayed. The amount of delay at this time can be changed by the viewer operating the delay time changing means 44. The normal audio signal 62A and the audio delay device 43
Each signal of the preceding audio signal 64A delayed by the speaker 48 and the headphone terminal 4
9, output to the external output terminal 50. The viewer can select the output destination of the normal audio signal and the preceding audio signal by the audio output selecting means 46, so that the normal audio and the preceding audio can be heard by different devices. For example, it is possible to use a method in which a preceding sound is heard by a headphone and a normal sound is played from a speaker. In this case, headphones may be used only when a viewer who wants to hear the preceding sound wants to hear. Therefore, a viewer who normally watches television does not hinder the viewing, and a viewer who is listening to the preceding sound can also hear the normal sound by removing the headphones. Also, in the present television receiver, the audio delay device 43
, The time difference between the preceding audio signal and the normal audio signal can be made shorter than the setting of the broadcasting station. Since audio has less information volume than video, the audio delay device 43 can be realized relatively inexpensively.

In the case of the current television broadcast, since only two audio channels are provided, only one channel can be used for each of the normal audio and the preceding audio.
However, in a broadcasting method such as digital broadcasting that can have three or more audio channels, two or more channels can be assigned to one or both of normal audio and preceding audio, and stereo audio can be transmitted. In the above-described example, the normal video and the normal audio are obtained from the input video signal and the delayed audio signal, and the preceding audio is obtained from the undelayed audio signal. In the case of a storage medium, it is also possible to directly read out signals for obtaining normal video, normal audio, and preceding audio from the medium without using signal delay means.

[0023]

【The invention's effect】

Effect of Claim 1: Even if the viewer is not focused on the screen, just listening to the preceding sound, it is possible to detect in advance that the scene will change, and the scene desired to be watched while listening to the preceding sound comes. If the user goes to the television screen when he or she notices that, a television broadcasting method that allows the user to view the desired scene without missing it is obtained. By broadcasting in this television broadcasting method, the viewer can know in advance that a famous scene will come, so that his / her eyes can be safely removed from the television screen.
Therefore, the eyes and body can be rested slowly, and other work such as reading and room cleaning can be easily performed, which is convenient for those who do not have time to sit still in front of the television. Further, since the user can view the scene without missing a famous scene, there is no need to review such a scene, and therefore, an operation for reviewing is unnecessary. In addition, since the screen is not confused by performing the review operation, the viewing of other viewers who normally viewed the screen is not hindered.

Effect of Claim 2 In addition to the effect of Claim 1, the viewer performs a sound switching operation of the television receiver to thereby obtain a normal sound (for example, a main sound) and a preceding sound (for example, a sub sound). ), Or both at the same time.

According to the third aspect of the present invention, it is possible to detect in advance that the scene will change just by listening to the preceding sound, even if the viewer is not concentrated on the screen, and to watch while listening to the preceding sound. If the user goes to the television screen when he / she notices that the scene has come, a television broadcasting apparatus for performing television broadcasting in which the desired scene can be viewed without missing is obtained. By broadcasting using this television broadcasting device,
Because you know in advance that a famous scene is coming, you can safely remove your gaze from the TV screen. Therefore, the eyes and body can be rested slowly, and other tasks such as reading and room cleaning can be easily performed, which is convenient for those who do not have time to sit still in front of the television. Further, since the user can view the scene without missing a famous scene, there is no need to review such a scene, and therefore, an operation for reviewing is unnecessary. In addition, since the screen is not confused by performing the review operation, the viewing of other viewers who normally viewed the screen is not hindered.

Effect of Claim 4: In addition to the effect of Claim 3, specific means for generating a normal video signal, a normal audio signal, and a preceding audio signal are provided.

Advantageous effect of claim 5: In addition to the effect of claim 3, even when a storage medium such as a tape or a disk is used as a source of a video signal and an audio signal, by reading the signal from the storage medium, the signal can be read out. A video signal, a normal audio signal, and a preceding audio signal can be obtained.

According to a sixth aspect of the present invention, a viewer can select a normal sound and a preceding sound to reproduce and output the sound by performing a sound switching operation on the television receiver. A receiver is obtained.

According to the seventh aspect of the present invention, the normal sound and the preceding sound can be output to different sound reproducing means (for example, speakers, headphones, external output terminals, etc.), so that the viewer can easily use the sound. Audio can be reproduced, and a television receiver with high convenience for the viewer can be obtained.

According to the eighth aspect of the present invention, the provision of the delay time changing means for changing the delay time of the audio enables the delay time to be changed in accordance with the preference of the viewer and the contents of the program. A receiver is obtained.

Effect of Claim 9 In addition to the effect of Claim 6 or 7, by providing a delay time changing means for changing the delay time of audio, the delay time is changed according to the taste of the viewer and the program contents. Thus, a television receiver with high convenience for the viewer can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining an embodiment of the present invention.

FIG. 2 is a diagram for explaining a viewing example of a program broadcast according to the present invention.

FIG. 3 is a block diagram for explaining another embodiment of the present invention.

[Explanation of symbols]

10 broadcasting apparatus, 11 video signal input terminal, 12 audio signal input terminal, 13 signal delay device, 14 multiplexing device,
15: transmitting device, 21V: video signal, 22A: audio signal, 23A: audio signal (preceding audio signal), 24V: video signal (normal video signal), 25A: audio signal (normal audio signal), 26: NTSC signal, 27 ... TV signal, 30 ...
Antenna, 40 TV receiver, 41 Receiver, 42
Separation unit, 43: audio delay device, 44: delay time changing unit, 45: audio output switching unit, 46: audio output selection unit,
47: display device, 48: speaker, 49: headphone terminal, 50: external output terminal, 61V: normal video signal, 6
2A: normal audio signal; 63A, 64A: preceding audio signal.

Claims (9)

[Claims] 1. A video signal, a synchronous audio signal synchronized with the video signal, and a preceding audio signal which is the same audio signal as the synchronous audio signal and which temporally precedes the synchronous audio signal. A television broadcasting method characterized by multiplex broadcasting. 2. The television broadcasting method according to claim 1, wherein the synchronous audio signal and the preceding audio signal are individually allocated to one of a main audio channel and a sub audio channel of the television broadcast and broadcast. . 3. An original video signal and an original audio signal synchronized with the original video signal are inputted, and a broadcast video signal to be broadcasted and a broadcast video signal are inputted from the inputted original video signal and the original audio signal. A broadcast synchronization audio signal synchronized with the signal, and a broadcast signal generation unit configured to generate a broadcast advance audio signal which is composed of the same audio signal as the broadcast synchronization audio signal and is temporally preceding the broadcast synchronization audio signal. Multiplexing means for multiplexing the broadcast video signal, the broadcast synchronization audio signal, and the broadcast preceding audio signal obtained by the broadcast signal generation means to generate a multiplexed signal, and a multiplexed signal obtained by the multiplexing means Transmitting means for modulating and transmitting the modulated signal. 4. The broadcast signal generating means includes: a distribution unit that distributes the input original audio signal into two identical original audio signals; and a two-dimensional signal obtained by the input original video signal and the distribution unit.
And a signal delay unit for delaying one of the two original audio signals. The video signal and the audio signal obtained by the signal delay unit are the broadcast video signal and the broadcast synchronization audio signal, respectively. 4. The television broadcast apparatus according to claim 3, wherein the other original audio signal obtained by the distribution unit is used as the preceding audio signal. 5. A storage medium storing a video signal and an audio signal as a source, wherein the signal generating means outputs the broadcast video signal, the broadcast synchronous video signal,
4. The television broadcast apparatus according to claim 3, wherein said broadcast preceding video signal is read out and generated simultaneously. 6. A video signal, a synchronous audio signal synchronized with the video signal, and a preceding audio signal which is the same audio signal as the synchronous audio signal and which temporally precedes the synchronous audio signal. A television receiver having a function of receiving a broadcast radio wave multiplexed and selectively outputting the received synchronous audio signal and the preceding audio signal. 7. A video signal, a synchronous audio signal synchronized with the video signal, and a preceding audio signal comprising the same audio signal as the synchronous audio signal and temporally preceding the synchronous audio signal. It has a function of receiving a multiplexed broadcast radio wave and outputting the received synchronous audio signal and the preceding audio signal to output terminals for individual audio reproduction means. TV receiver. 8. A video signal, a synchronous audio signal synchronized with the video signal, and a preceding audio signal which is the same audio signal as the synchronous audio signal and which temporally precedes the synchronous audio signal. Receiving means for receiving a multiplexed broadcast wave, audio signal delay means for delaying the preceding audio signal contained in the broadcast wave received by the receive means, and delay time for changing the delay time in the audio signal delay means A television receiver comprising: changing means. 9. An audio signal delaying means for delaying the preceding audio signal contained in the received broadcast wave, and a delay time changing means for changing a delay time in the audio signal delaying means. Item 7. A television receiver according to item 6 or 7.