JP2003092713A - Television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a television receiver for receiving an ever changing television radio wave and allowing a viewer to hear sound of a commercial message whose sound volume is automatically decreased. SOLUTION: The television receiver includes; a reception section 16 for receiving a television signal and separating the television signal into a signal of a source of a video signal and a signal of a source of an audio signal a display section 8 for displaying the video signal; an audio processing section 13 for processing the audio signal speakers 14, 15; and a control section 12, and is configured so as to decrease the sound volume of only the commercial part other than the program part. Further, the television receiver also includes a first entry section 17, and the control section 12 outputs a mute signal to the audio processing section 13 when the first entry section is operated so as to decrease the sound volume of the commercial part other than the program part.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a television receiver.

[0002]

2. Description of the Related Art Conventionally, in a television receiver, the sound output of a commercial part is higher than that of a program part, and there is a first drawback that the sound is noisy and uncomfortable.

[0003]

In order to solve this drawback, for example, Japanese Patent Laid-Open No. 2000-322076 discloses
Stated a new proposal. According to this publication, recording or recording is made excluding commercial parts.

However, the above-mentioned device is for recording, etc., and is not capable of receiving the television radio waves which change from moment to moment.
There is a drawback of. Further, there is a third drawback that the user cannot see the commercial part at all.

Therefore, in consideration of the above-mentioned conventional drawbacks, the present invention provides a television receiver capable of receiving a television radio wave which changes from moment to moment and automatically watching and listening to a commercial portion whose volume is automatically lowered. To do.

[0006]

In order to solve the above problems, the present invention according to claim 1 receives a television signal and separates it into a signal which is a source of a video signal and a signal which is a source of an audio signal. And a display unit for displaying the video signal, an audio processing unit for processing the audio signal, a speaker, and a control unit, so that the volume is lowered only for the commercial part other than the program part. Configured.

According to the second aspect of the present invention, a first input section is provided, and when the first input section is operated, the control section outputs a mute signal to the audio processing section, except for the program portion. , The volume of the commercial part is lowered.

According to the present invention of claim 3, a second input section having a plurality of volume selection sections is provided, and when the specific volume selection section is selected, the control section provides a specific operation to the audio processing section. A volume control signal is output, and the volume of the commercial portion other than the program portion is reduced according to the selected volume.

According to the present invention of claim 4, a mode signal detector is provided, and the controller detects the commercial portion by the mode signal output from the mode signal detector, and lowers the volume of the commercial portion.

According to the present invention of claim 5, an image processing unit for outputting the image signal to the display unit is provided, and when the volume of the commercial portion is lowered, the control unit passes through the image processing unit. A display is displayed on the display unit informing that the volume has been lowered.

In the present invention of claim 6, the display portion is C
It is an RT display unit or a liquid crystal display device.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, according to the block diagram of FIG.
The television receiver 1 according to the embodiment of the present invention will be described.
In FIG. 1, television waves of a plurality of channels received by the antenna 2 are supplied to the tuner 3.

In the tuner 3, a user selects a channel from the input section 4 to select a predetermined television signal from the above-mentioned television broadcast signals of a plurality of channels. The tuner 3 outputs an intermediate frequency signal to the video intermediate frequency amplifier circuit 5.

The video intermediate frequency signal SVIF amplified and output by the amplifier circuit 5 is supplied to the video detection circuit 6 and detected by the circuit 6. The video signal SV obtained by the video detection circuit 6 is supplied to the image processing unit 7.

The image processing section 7 forms red, green and blue color signals, and these color signals are supplied to the display section 8. The display unit 8 displays a color image according to the color signal.

This display unit, as shown in FIG. 1, is a CRT.
It may be a display unit or a liquid crystal display device LCD.
In this way, the display unit 8 displays the image by the image signal SV.

The audio second intermediate frequency signal SAIF output from the video intermediate frequency amplifier circuit 5 is amplified by the audio intermediate frequency amplifier circuit 9.

The amplified signal is used as a voice detection circuit 10.
Is supplied to and detected. The audio signal SA obtained by the audio detection circuit 10 is supplied to the mode signal detection unit (multiplex demodulation circuit) 11.

The mode signal detector 11 performs a demodulation process according to the mode of the audio signal SA (that is, monaural, stereo, or two-audio multiplex).

Then, the mode signal detecting section 11 outputs a mode signal MOD to the control section 12.

The control unit 12 comprises a CPU and the like, and the control unit 1
A control operation is performed by a ROM (not shown) that is connected to No. 2 and stores a control program.

The audio signals SL and SR demodulated by the mode signal detection section (multiplex demodulation circuit) 11 are processed by the audio processing section 1.
Level is adjusted at 3.

The level-adjusted audio signals are supplied to the speaker 14 and the speaker 15, respectively, and output as audio.

When the user adjusts the volume adjusting section (not shown) provided in the input section 4, the control section 12 outputs a volume signal to the voice processing section 13. The audio output level is adjusted by the audio processing unit 13 by the volume signal.

In the above structure, the tuner 3 and the video intermediate frequency amplifier circuit 5 constitute a receiver 16.
As described above, the receiving unit 16 receives the television signal and is the source of the video signal SV (that is, the video intermediate frequency signal SVIF) and the source of the audio signal SA (that is, the audio second signal). The intermediate frequency signal SAIF) is separated and output.

The first input section 17 is provided in the input section 4, and is, for example, turned on when first pressed, turned off when pressed next, and turned on when pressed next. In this way, the switch is repeatedly turned on and off each time the button is pressed. When the first input unit 17 is operated and turned on, the first small sound mode (described later) is set.

The second input section 18 is provided in the input section 4, and is provided with, for example, two volume selection sections L and LL, and "OFF" setting. When the user presses L, the volume of the commercial part is reduced to 70% of the original volume, and when LL is pressed, the volume is reduced to 20% of the original volume. When set to "OFF", the original state is restored.

Further, the second input section 18 may be constructed so as to be adjustable steplessly like a volume. When the second input unit 18 is set in this manner, the second small sound mode (described later) is set. With the above parts, this TV receiver 1
Is configured.

Next, the operation of the television receiver 1 will be described with reference to FIGS. Figure 2 shows various states
FIG. 3 shows a waveform diagram of the audio signal level, and FIG. 3 shows a flowchart in the first small sound mode.

In these figures, it is assumed that the user does not operate the first input unit 17 or the second input unit 18 first.

At this time, as shown in FIG. 3A, the audio signal level in the commercial portion b is much higher than that in the program portion a.

As shown in FIG. 3B, the program part a
On the other hand, in the commercial part e, the audio signal level is high. However, it is lower than the level of the commercial part b shown in FIG.

Next, when the user operates the first input section 17, the user is turned on and the first small note mode is set. The control unit 12 affirms the determination as to whether or not it is the first small sound mode (FIG. 2).
See S1).

Then, the control section 12 determines whether or not the commercial is started (see S2 in FIG. 2). If the television receiver 1 receives and receives the program portion, the audio signal SA is a monaural or two-audio multiplexed signal to the mode signal detecting section 11.

The mode signal detector 11 outputs a mode signal MOD (monaural or two-voice multiplex) to the controller 12. As a result, the control unit 12 determines that it is the program portion and denies the determination in S2. Then, the control unit 12 repeats the operations of S1 and S2 shown in FIG.

Next, when the broadcast content is changed from the program portion a to the commercial portion c (see FIG. 3C), the audio signal changes from monaural or two-audio multiplex to a stereo signal.

The mode signal detector 11 outputs a mode signal MOD (which is a stereo signal) to the controller 12. As a result, the control unit 12 determines that the commercial portion c has been changed, and affirms the determination in S2.

Then, the control section 12 puts it in the mute state (see S3 in FIG. 2). That is, the control unit 12 outputs the mute signal AMU to the audio processing unit 13.

As a result, the voice processing unit 13 causes the speaker 1
For 4 and 15, the audio signal level of the commercial portion c is lowered and supplied. That is, the speakers 14 and 15 reduce the volume of the commercial portion c other than the program portion a and output it.

Next, the control unit 12 determines whether or not the commercial has ended (see S4 in FIG. 2).

If the broadcast content changes from the commercial portion c to the program portion g (see FIG. 3 (c)), the audio signal changes from stereo to monaural or two-audio multiplex.

The mode signal detector 11 outputs a mode signal MOD (monaural or two-voice multiplex) to the controller 12. As a result, the control unit 12 causes the program portion g
It is determined that it has changed to, and the determination in S4 is affirmed.

Then, the control section 12 cancels the mute state (see S5 in FIG. 2). That is, the control unit 12 stops outputting the mute signal AMU to the audio processing unit 13.

As a result, the voice processing unit 13 causes the speaker 1
For 4 and 15, the audio signal level of the program part g is returned to the original state (that is, the same audio signal level as the program part a).

In this way, the control unit 12 returns to immediately before S1 shown in FIG. 2 and repeats the above-mentioned operation.

The characteristics of the above operation will be summarized. First input section 1
When 7 is operated, the first small sound mode is set. At this time, the control unit 12 sends the mute signal AMU to the audio processing unit 13.
Is output. As a result, the audio processing unit 13 and the speakers 14 and 15 lower the volume of the commercial portion c other than the program portions a and g.

The volume (voice signal level) of the commercial portion c is set to about 50% of the volume of the commercial portion b before the first small sound mode.

In the first small sound mode, when the volume of the commercial portion c is lowered, the control unit 12 outputs the small sound signal VMU to the video processing unit 7.

As a result, the video processing section 7 has the display section 8
In response to this, a message stating that "the volume is currently being reduced" is displayed. From this display, the user can see that the volume automatically decreases in the commercial part c,
It can be seen that the TV receiver 1 is not out of order.

Next, when the user operates the second input section 18 (for example, when the LL switch of the second input section 18 is pressed), the second small note mode is set. The control unit 12 determines that the second small sound mode is set.

Then, the control unit 12 determines whether or not the commercial is started. If, at this time, the program portion a (see FIG.
(See (D)), the mode signal detection unit 11
Outputs a mode signal MOD (monaural or two-voice multiplex) to the control unit 12. As a result, the control unit 12
It is determined that the commercial has not started.

Next, when the broadcast content changes from the program part a to the commercial part f (see FIG. 3D), the audio signal changes from monaural or two-audio multiplex to a stereo signal.

The mode signal detector 11 outputs a mode signal MOD (which is a stereo signal) to the controller 12. As a result, the control unit 12 determines that the commercial portion f has been changed.

Then, the control section 12 outputs the LL volume control signal VOL to the audio processing section 13.

As a result, the voice processing unit 13 causes the speaker 1
4 and 15, the audio signal level of the commercial part f is lowered and supplied.

Next, the control unit 12 determines whether or not the commercial has ended.

If the broadcast content changes from the commercial part f to the program part h (see FIG. 3D), the audio signal changes from stereo to monaural or two-audio multiplex.

The mode signal detector 11 outputs a mode signal MOD (monaural or two-voice multiplex) to the controller 12. As a result, the control unit 12 causes the program portion h
It is determined that it has changed to.

Then, the control section 12 stops the output of the LL volume control signal VOL to the audio processing section 13.

As a result, the voice processing unit 13 causes the speaker 1
For 4 and 15, the audio signal level of the program part h is returned to the original state (that is, the same audio signal level as the program part a). In this way, the control unit 12 repeats the above operation.

The characteristics of the above operation will be summarized. A second input unit 18 having a plurality of volume selection units (L, LL, etc.) is provided. When a specific volume selection unit (for example, LL) is selected, the control unit 12 outputs a specific volume control signal (for example, LL VOL) to the audio processing unit 13. As a result, the volume of the commercial portion f other than the program portion a is lowered according to the selected volume LL.

For example, when the volume selection section is selected to LL, the volume of the commercial part f (audio signal level)
Is the commercial part e (Fig. 3) before the second small sound mode.
(See (B)) The volume is set to about 20%.

In this way, the user can
If you don't want to hear the commercial voice, you can turn down the voice extremely.

Further, for example, when the volume selection section is selected to be L, the volume of the commercial part f is set to about 70% of the volume of the commercial part e before the second small sound mode.

In this way, if the user does not want to turn down the volume of the commercial in the commercial part f,
It suffices to select L for the volume selection section.

Further, the second input section 18 may be steplessly adjusted like a volume. The user is the second
If the input section 18 is set to a position that one likes, the volume of the commercial part f can be lowered to the volume that one likes and set.

[0067]

According to the present invention of claim 1, a receiving section for receiving a television signal and separating it into a signal as a source of a video signal and a signal as a source of an audio signal, and a display for displaying by the video signal. And a voice processing unit that processes the voice signal, a speaker, and a control unit, and is configured to reduce the volume only in the commercial portion other than the program portion. With the above structure, a television signal which changes every moment can be received. Further, since the volume of only the commercial part is automatically lowered, it is possible to prevent the user from feeling uncomfortable during the commercial. In addition, the user can see and listen to the commercial portion, so that the commercial information can be obtained.

According to the second aspect of the present invention, a first input section is provided, and when the first input section is operated, the control section outputs a mute signal to the audio processing section, except for the program portion. In the configuration, the volume of the commercial portion is lowered. In this way, when the user operates the first input section, the volume of the commercial part is automatically lowered. User is first
Depending on whether or not the input section is operated, the above automatic volume reduction,
Normal usage can be selected.

According to the third aspect of the present invention, the second input section having a plurality of volume selection sections is provided, and when the specific volume selection section is selected, the control section provides the audio processing section with a specific selection. A volume control signal is output, and the volume of the commercial portion other than the program portion is reduced according to the selected volume. In this way, since the volume selection unit selected by the user can select the volume reduction degree of the commercial portion, the user can set the volume of the commercial portion to his or her favorite volume.

According to the present invention of claim 4, a mode signal detecting section is provided, and the control section detects the commercial portion by the mode signal output from the mode signal detecting section and lowers the volume of the commercial portion. To do. With the above configuration, the control unit can accurately extract only the commercial portion below the program portion and reduce the volume of only that portion.

According to the present invention of claim 5, an image processing unit for outputting the image signal to the display unit is provided, and when the volume of the commercial portion is lowered, the control unit passes through the image processing unit, The display unit is configured to display an indication that the volume has been lowered. With the above configuration, the user can see that the volume automatically decreases in the commercial part, and that the television receiver is not out of order.

In the present invention of claim 6, the display portion is C
It is an RT display unit or a liquid crystal display device. As described above, the present invention is applied to both a television receiver using a CRT display unit and a liquid crystal television, and the applicable range is widened.

[Brief description of drawings]

FIG. 1 is a block diagram of a television receiver 1 according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining main operations in the television receiver 1.

FIG. 3A and FIG. 3B are waveform diagrams of audio signal levels in the television receiver 1 when not in the first small sound mode or the second small sound mode. FIG. 3C is a waveform diagram of the audio signal level in the first small sound mode, and FIG. 3D is a waveform diagram of the audio signal level in the second small sound mode.

[Explanation of symbols]

8 Display 12 Control unit 13 Voice processing unit 14 and 15 speakers 16 Receiver

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshiyuki Itagaki             Shimane Prefecture, Ohara-gun Kiji-cho 320 Yamagata 1 Shimane             Sanyo Industry Co., Ltd. F-term (reference) 5C025 AA29 BA09                 5C026 DA05

Claims (6)

[Claims] 1. A receiving unit that receives a television signal and separates it into a signal that is a source of a video signal and a signal that is a source of an audio signal, a display unit that displays by the video signal, and a processing of the audio signal. A television receiver comprising a sound processing unit, a speaker, and a control unit configured to reduce the volume of only commercial portions other than program portions. 2. A first input section is provided, and when the first input section is operated, the control section outputs a mute signal to the audio processing section, and the commercial section other than the program section is output. The television receiver according to claim 1, wherein the volume is lowered. 3. A second input section having a plurality of volume selection sections is provided, and when the specific volume selection section is selected, the control section outputs a specific volume control signal to the audio processing section. The television receiver according to claim 1, wherein the volume of the commercial portion other than the program portion is lowered according to the selected volume. 4. A mode signal detecting section is provided, and the control section detects the commercial portion by the mode signal output from the mode signal detecting section, and lowers the volume of the commercial portion. TV receiver. 5. A video processing unit for outputting the video signal to the display unit is provided, and when the volume of the commercial portion is lowered, the control unit causes the display unit to perform the operation with respect to the display unit via the video processing unit. The television receiver according to any one of claims 1 to 4, further comprising a display indicating that the volume has been lowered. 6. The television receiver according to claim 1, wherein the display unit is a CRT display unit or a liquid crystal display device.