JPH0556366A - High-vision receiver output device - Google Patents

Abstract

(57) [Abstract] [Purpose] When the audio system is switched on the transmitting side, the character displayed on the high-definition display will identify what the audio system is receiving, so that it can be recognized visually reliably and easily. Executes the reproduction of a realistic sound field. A character generating device 6 is controlled by an identification signal detected by a voice type identification signal detecting means 4, and character information and a video signal generated there are synthesized by a synthesizing device 7 to display It is configured to output to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output device for a high-definition receiver, and more particularly to an output device for a high-definition receiver capable of receiving 4-channel audio.

[0002]

2. Description of the Related Art As a sound of a high-definition receiver, a four-channel stereo sound is adopted as opposed to a two-channel stereo sound of a current television receiver for the reason of enhancing a sense of reality. The main methods are three front channels, one rear channel 3-1 method and two front channels.
Channel, 2 channels of the rear two channels, etc., and various audio output methods such as audio multiplexing are adopted. Table 1 shows various audio methods of high-definition audio and an audio control code transmitted together with an audio signal for controlling the audio methods.

[0003]

[Table 1]

FIG. 4 is a block diagram showing the configuration of a signal processing system of a high-definition receiver having a conventional audio output device. In FIG. 4, reference numeral 12 is a signal transmitted from a satellite.
A parabolic antenna that receives a radio wave of 2 GHz and converts it into a signal of 1 GHz, 13 selects a necessary channel from the signal sent from the parabolic antenna 12, and M
It is a MUSE tuner that outputs a USE signal. 14 is a low-pass filter (hereinafter referred to as LPF), 15 is A /
D converter, 16 is a MUSE video digital signal processing unit,
17 is a MUSE audio digital signal processing unit, 18 to 21
Is a D / A converter for each of the 4-channel audio signals. It should be noted that the MUSE used here is multiple sub-Nyquist sampling encoding (Multiple s
Abbreviation of ub NyquistSampling Encoding), which represents a method of band-compressing and transmitting information of high-definition television that is more than 5 times that of NTSC broadcasting, which is the current TV broadcasting, into 1 channel of satellite broadcasting, 4 channels of audio are also compressed, It is time-multiplexed in the vertical blanking interval of the video signal.

Next, the operation of the above configuration will be described. The 12 GHz radio wave transmitted from the satellite is received by the parabolic antenna 12 and converted into a 1 GHz signal. Then, the 1 GHz signal is the MUSE tuner 1
3 is converted into a MUSE signal, passed through the LPF 14, and converted into a digital signal in the A / D converter 15. Among them, the video signal is subjected to digital signal processing by the MUSE video digital signal processing unit 16 and sent to the video signal processing unit of the next stage. Also, the audio signal time-multiplexed in the vertical blanking interval of the video signal is selected and
After being sent to the E audio digital signal processing unit 17 and subjected to digital signal processing, it becomes a 4-channel digital audio signal and is converted into a 4-channel analog audio signal by the D / A converters 18 to 21, and the audio of the next stage is processed. It is sent to the signal processing unit.

Further, as shown in FIG. 5, a D / A converter 22 is provided after the MUSE video digital signal processing section 16.
It has been known from the related art that the MUSE video digital signal processing unit 16 is connected to convert the digital signal processed into an analog signal and outputs the analog signal to a recording device such as a high-definition display or a VTR.

[0007]

Since the output device of the conventional high-definition receiver is configured as described above, when various audio systems as shown in Table 1 are switched on the transmission side, the reception side operates on the reception side. However, there is a problem that it is difficult to understand what the switched audio system is, and it is difficult to reproduce the realistic sound field required for high-definition audio. In addition, in both cases of FIG. 4 and FIG.
There is a problem that it is difficult to connect a recording device such as a VTR because there is only one system for outputting the video signal.

The present invention has been made to solve the above problems, and when the voice system is switched on the transmission side, the reception side can easily recognize what the switched voice system is. An object of the present invention is to provide an output device of a high-definition receiver capable of executing reproduction of a sound field full of realism.

Another object of the present invention is to make it possible to easily connect a recording device such as a VTR.

[0010]

An output device of a high-definition receiver according to claim 1 of the present invention discriminates a high-definition 4-channel audio system sent from a transmitting side, and selects an audio system according to the identification output. It is characterized in that the corresponding character information is generated, and the generated character information and the video signal are combined and output to the video signal processing unit in the next stage.

Further, in the output device of the high-definition receiver according to claim 2, there is provided a selecting means for selecting whether or not to synthesize the character information generated by the character generating means with the video signal, and the selecting means is used. It is configured to arbitrarily select and output whether to synthesize the video signal and the character information.

Further, the output device of the HDTV receiver according to claim 3 of the present invention has first and second output means independent of each other, and the first output means outputs only the video signal. In addition to being configured, the second output means identifies the high-definition 4-channel audio system sent from the transmission side, generates character information corresponding to the audio system according to the identification output, and generates the character information. The character information and the video signal are analog-synthesized and output to the outside.

[0013]

According to the first aspect of the present invention, the transmitted high-definition 4-channel voice system is identified, and the voice system received by using the character on the high-definition display connected to the high-definition receiver is used. Since it is possible to display whether or not there is a voice system, when the voice system is switched on the transmitting side, the voice system can be identified surely and easily by the visual effect of the character.

According to the second aspect, it is possible to arbitrarily select the character display as described above.
It is suitable when connecting to etc.

Further, according to the invention of claim 3, the audio system being received by displaying on the high-definition display connected to the high-definition receiver by using a character corresponding to the audio system being transmitted, You can visually and surely recognize what it is and output the received video signal as it is.
It can be recorded on a recording device such as R without a character.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a block diagram showing the configuration of an output device of a high-definition receiver according to an embodiment of the present invention. In FIG. 1, a parabolic antenna 12 to an A / D converter 15 are shown.
Since the configurations up to this point are the same as those of the conventional example shown in FIG. 4, their description is omitted.

In FIG. 1, 1 is an input terminal for a MUSE digital signal, 2 is a MUSE video digital signal processing section, 3 is a MUSE audio digital signal processing section, 4 is an audio system identification signal detecting means, and 5 is a character display 0N /
A change-over switch for turning off, 6 a character generator for generating character information, 7 a video / character synthesizer for synthesizing the character information generated by the character generator 6 and a video digital signal,
8-11 are D / A for 4 channel audio
It is a converter.

Next, the operation of the above configuration will be described. The MUSE digital signal input from the input terminal 1 is divided into a video signal and an audio signal, and each is divided into M signals.
It is sent to the USE video digital signal processing unit 2 and the MUSE audio digital signal processing unit 3. The 4-channel digital audio signal subjected to digital signal processing by the MUSE audio digital signal processing unit 3 is D / I after the audio system is identified by the audio system code transmitted by the audio system identification signal detecting means 4 together with the audio signal. The signals are converted into 4-channel analog signals by the A converters 8 to 11 and sent to the audio signal processing unit in the next stage.

On the other hand, the identification signal detected by the voice system identification signal detecting means 4 is sent to the character generator 6 to generate character information corresponding to the voice system being received. This character information is changeover switch 5
After selecting the necessity / non-necessity of the character display in, it is sent to the image / character synthesizer 7, and the above MUS
It is combined with the video digital signal from the E video digital signal processing unit 2, and the combined video signal is sent out to the video signal processing unit in the next stage.

2 (a) and 2 (b) are display examples of the audio system on the high-definition display connected to the high-definition receiver, and FIG. And (b) shows the case where the A mode and the 2-2 system audio are being received. The contents of each character will be described below.

In the display example shown in FIG. 2A, 23 is a front left channel (LF) speaker, 24 is a front center channel (C) speaker, 25 is a front right channel (RF) speaker, and 26 and 27 are surround channels. (S) Speaker 28 is a character display, indicating that the A mode 3-1 system audio is being received, and four channels of audio are output from the five speakers 23 to 27. 2B, 29 is an LF speaker, 30 is an RF speaker, 31 is a rear left channel (LB) speaker, 32 is a rear right channel (RB) speaker, and 33 is a character display. This indicates that the audio of the mode 2-2 system is being received, and the audio of four channels is output from the four speakers 29 to 32.

FIG. 3 is a block diagram showing a configuration of an output device of a high-definition receiver according to another embodiment of the present invention. In FIG. 3, 1 to 11 are the same as those of the embodiment shown in FIG. Corresponding parts are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 3, 34 is a D / A for video signals.
The converter 35 is a D / A converter for a voice display character. Further, two output paths 36 and 37 are formed in a stage subsequent to the D / A converter 34 for the video signal and in a stage preceding the video / character synthesizing device 7.

Next, the operation of the above configuration will be described. Since the MUSE digital signal input from the input terminal 1 is divided into a video signal and an audio signal, the video signal synthesized by the video / character synthesizing device 7 is sent to the video signal processing unit of the next stage. The operation and the display example of the audio method on the high-definition display are the same as those in the above-mentioned embodiment, and thus the description thereof is omitted. In this embodiment, the video digital signal from the MUSE video digital signal processing unit 2 is converted into a video analog signal by the D / A converter 34 and then divided into two output paths 36 and 37. The video analog signal is sent to an external recording device such as a VTR and the other is sent to the video / character synthesizing device 7 to display a character on the high-definition display as described above.

[0025]

As described above, according to claim 1 of the present invention, when the audio system is switched on the transmission side, the audio system received on the high-definition display connected to the high-vision receiver is supported. Since the displayed character can be displayed, the visual effect on the receiving side can be used to reliably and easily recognize what the audio system is receiving, which makes the high-definition 4-channel audio sound more realistic. Sound field reproduction can be performed.

According to the second aspect, the character display as described above can be arbitrarily selected, which is suitable when a character is not required, for example, when connecting to a VTR or the like.

Further, according to the third aspect, since the video signal received through one of the two output means can be output as it is, the video without character display is recorded. A recording device such as a VTR can be easily connected.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an output device of a high-definition receiver according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of character display in a high-definition 4-channel audio system on a high-definition display.

FIG. 3 is a block diagram showing a configuration of an output device of a high-definition receiver according to another embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a signal processing unit of a conventional high-definition receiver.

FIG. 5 is a block diagram showing a configuration of a signal processing unit of another conventional high-definition receiver.

[Explanation of symbols]

 1 MUSE digital signal input terminal 2 MUSE video digital signal processing unit 3 MUSE audio digital signal processing unit 4 Audio system identification signal detection means 5 Character display changeover switch 6 Character generation device 7 Video / character synthesis device 36, 37 2 systems Output route

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[Procedure amendment]

[Submission date] April 2, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

Further, in the output device of the high-definition receiver according to claim 2, there is provided a selecting means for selecting whether or not to synthesize the character information generated by the character generating means with the video signal, and the selecting means is used. It is characterized in that it is configured to arbitrarily select and output whether or not to combine the video signal and the character information.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

In FIG. 1, 1 is an input terminal for a MUSE digital signal, 2 is a MUSE video digital signal processing section, 3 is a MUSE audio digital signal processing section, 4 is an audio system identification signal detecting means, and 5 is a character display 0N /
Selector switch to OFF, 6 Character generator for generating character information, 7 denotes a video, character combining apparatus for combining the character information was generated by the character generator 6 and the video digital signal,
8-11 are D / A for 4 channel audio
It is a converter.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

Next, the operation of the above configuration will be described. The MUSE digital signal input from the input terminal 1 is divided into a video signal and an audio signal, and each is divided into M signals.
It is sent to the USE video digital signal processing unit 2 and the MUSE audio digital signal processing unit 3. The 4-channel digital audio signal subjected to digital signal processing by the MUSE audio digital signal processing unit 3 is D / I after the audio system is identified by the audio system code transmitted by the audio system identification signal detecting means 4 together with the audio signal. It is converted into a 4-channel analog audio signal by the A converters 8 to 11 and sent to the audio signal processing unit in the next stage.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

In the display example shown in FIG. 2A, 23 is a front left channel (LF) speaker, 24 is a front center channel (C) speaker, 25 is a front right channel (RF) speaker, and 26 and 27 are surround channels. (S) loudspeaker, 28 a character display, represents that it is receiving the audio a mode 3-1 scheme, that the voice of the four channels from five speakers to 23 to 27 is output Shows . In addition, FIG.
In the display example shown in (b), 29 is an LF speaker and 3
0 is an RF speaker, 31 is a rear left channel (LB) speaker, 32 is a rear right channel (RB) speaker, 3
3 is a character display, represents that it is receiving the audio A mode 2-2 scheme indicates that the 4-channel audio is output from the four speakers to 29-32
Are doing .

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

[Procedure Amendment 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (3)

[Claims] 1. An output device of a high-definition receiver capable of receiving high-definition 4-channel audio, comprising identification means for identifying the high-definition 4-channel audio system.
Character generation means for generating character information corresponding to the voice system according to the identification output of the identification device,
The character generating means is provided with a synthesizing means for synthesizing the character information generated by the character generating means and the video signal, and when the sound method is switched on the transmitting side, the character information corresponding to the sound method being received is obtained by the character generating means. An output device for a high-definition receiver, which is configured to generate and synthesize the character information and a video signal to output to a video signal processing unit in the next stage. 2. A selection means for selecting whether or not to synthesize the character information with a video signal in a stage preceding the synthesis means in a path for inputting the character information generated by the character generation means to the synthesis means. Prepare,
The output device of the high-definition receiver according to claim 1, wherein the selection means is used to arbitrarily select and output whether or not the video signal and the character information are combined. 3. An output device of a high-definition receiver capable of receiving high-definition 4-channel audio, comprising first and second output means independent of each other, and the first output means outputs only a video signal. The second output means is an identification means for identifying the high-definition 4-channel audio system, and a character generation means for generating character information corresponding to the audio system according to the identification output of the identification device. And a synthesizing means for analog synthesizing the character information and the video signal generated by the character generating means, and whether the character information generated by the character generating means arranged before the synthesizing means is synthesized with the video signal. It is equipped with a selection means for selecting whether or not the sound is being received when the audio system is switched on the transmitting side. An output device of a high-definition receiver characterized in that character information corresponding to a voice system is generated by the character generation means, and the character information and a video signal are combined and output to the outside.