JPH04233379A - Television set built in satellite broadcast receiver - Google Patents

Abstract

PURPOSE:To listen to only the independent voice broadcast by turning off other power source than a receiving part and a voice circuit or applying a mute to a video signal, at the time of receiving an independent voice broadcast executed by a satellite broadcast receiving part. CONSTITUTION:When a main power source switch 1 is turned on, a BS power source part 4 and a voice power source part 15 are operated. In such a state, when a BS receiving part 5 receives an independent voice broadcast, and a TV/BS change-over switch 8 is switched to a BS side, an independent voice broadcast signal passes through a voice processing circuit 9 and is outputted from a loudspeaker 10. In this case, since a TV receiving part 7, a video processing circuit 11 and a CRT 12 are not operating, a video signal is not outputted. In such a way, only the independent voice broadcast is listened to by the loudspeaker 10.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] This invention relates to a television receiver with a built-in satellite broadcast receiver (hereinafter referred to as a BS receiver) which is equipped with a satellite broadcast receiver (hereinafter referred to as a BS receiver) capable of receiving independent audio broadcasts.
(referred to as built-in CTV).

0002

2. Description of the Related Art FIG. 3 is a block diagram showing the configuration of the main parts of a conventional CTV with a built-in BS.
5 is a TV power supply unit for supplying power to the TV receiver 3;
is a BS that demodulates the BS-IF signal into video and audio signals.
Receiving unit, 4 is a BS for supplying power to the BS receiving unit 5
6 is a BS-dedicated output terminal that outputs BS video and audio signals; 7 is a TV receiver that demodulates the TV-IF signal into video and audio signals; 8 is a TV/IF signal that switches between the TV signal and the BS signal. BS selector switch; 9 is an audio processing circuit that performs processing such as amplification of audio signals; 10 is a speaker for outputting audio; 11 is a video processing circuit that performs processing such as amplification of video signals; 12 is for displaying images. It is a CRT.

Next, among the operations of the above configuration, the operation for receiving independent audio broadcasting will be explained. Turn on the main power switch 1, and turn on the TV power supply section 2 and BS power supply section 4.
By turning on, the TV receiver 3 and the BS receiving section 5 operate. In this state, the BS receiving section 5 receives the independent audio broadcast, and by switching the TV/BS changeover switch 8 to the BS side, the independent audio broadcast signal is transferred to the audio processing circuit 9.
The signal is then output from the speaker 10. At this time, the video is a BS video signal that is unrelated to independent audio and is displayed on the CRT 12 via the video processing circuit 11.

[0004] In order to listen to only independent audio without projecting the TV screen on the CRT 12, turn off the TV power supply section 12 and turn off the TV screen.
By stopping the operation of the V receiver 3 and connecting an amplifier and a speaker (not shown) to the BS-dedicated output terminal 6, it becomes possible to listen to only the independent audio broadcast.

[0005]

[Problem to be solved by the invention] Conventional CTV with built-in BS
is configured as described above, so in order to listen to independent audio broadcasting, images unrelated to the independent audio are sent to the CRT12.
, or only the BS power supply section 4 must be turned on, and an amplifier and speaker must be separately connected to the BS-dedicated output terminal 6, which is a hassle.

[0006] This invention was made in order to solve the above-mentioned problems, and it is possible to connect separately prepared amplifiers and speakers without displaying images unrelated to the independent audio when receiving independent audio broadcasting. To provide a CTV with a built-in BS that allows you to listen to only independent audio broadcasting without having to do so.

[0007]

[Means for Solving the Problems] A CTV with a built-in BS according to the present invention is configured to turn off the power to components other than the BS receiving section and the audio circuit, or mute the video signal, when receiving an independent audio broadcast. be.

[0008]

[Function] According to the present invention, when receiving an independent audio broadcast, by turning off the power to components other than the BS receiving section and the audio circuit, or muting the video signal, images unrelated to the independent audio can be displayed. You can listen to only independent audio broadcasts without the hassle of connecting amplifiers and speakers.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the main parts of a CTV with a built-in BS according to an embodiment of the present invention. In the figure, 1, 4 to 12 are the same as the conventional example shown in FIG.
The same reference numerals are given to the corresponding parts, and detailed explanation thereof will be omitted.

In FIG. 1, 13 is a TV reception/video power supply section, which includes a TV reception section 7, a video processing circuit 11, and a CR.
Supply power to T12. 14 is an audio circuit unit that outputs audio from the speaker 10; 15 is an audio power supply unit that supplies power to the audio circuit 14;

Next, among the operations of the above configuration, the operation for receiving independent audio broadcasting will be explained. Turn on the main power switch 1, and turn on the BS power supply section 4 and the audio power supply section 1.
5 is turned on, the BS receiving section 5 and the audio circuit section 14 operate. In this state, the BS receiving section 5 receives the independent audio broadcast, and by switching the TV/BS changeover switch 8 to the BS side, the independent audio broadcast signal is output from the speaker 10 via the audio processing circuit 9. . At this time, the TV receiving section 7, the video processing circuit 11, the CRT 1
2 is not operating, no video signal is output. In addition, when watching BS video, TV reception/video power supply section 1
3 is turned on to operate the video processing circuit 11 and CRT 12, it becomes possible to display BS video on the CRT 12.

FIG. 2 is a block diagram showing the configuration of the main parts of a CTV with a built-in BS according to another embodiment of the present invention. In the same figure, 1 to 12 are the same as the conventional example shown in FIG. are given the same reference numerals, and detailed explanation thereof will be omitted. In FIG. 2, 16 is a video mute switch for muting the video signal, and 17 is a capacitor that passes only AC components.

Next, the operation of the embodiment shown in FIG. 2 will be explained. The basic operation for receiving the independent audio signal is the same as in the conventional example, so the explanation will be omitted. Here, in the case of the conventional example, BS video unrelated to independent audio broadcasting was displayed on the CRT 12, but in this embodiment, by turning on the video mute switch 16, the video signal, which is an AC component, is transferred to the capacitor. The image can be erased by dropping it to ground through 17. At this time, since the video mute switch 16 is placed before the video processing circuit 11, it is possible to display only the character signal displayed on the screen on the CRT 12.

[0014]

[Effects of the Invention] As described above, according to the present invention, when receiving an independent audio broadcast, it is possible to listen to only the independent audio broadcast without displaying images unrelated to the independent audio broadcast. You can easily enjoy independent audio broadcasting without the hassle of connecting amplifiers and speakers. In particular, by turning off the power to everything other than the BS receiver and the audio circuit, it is possible to reduce power consumption and enjoy high-quality independent audio without being affected by horizontal pulse signals.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of main parts of a CTV with built-in BS according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of main parts of a CTV with built-in BS according to another embodiment of the present invention.

FIG. 3 is a block diagram showing the configuration of main parts of a conventional CTV with built-in BS.

[Explanation of symbols]

4 BS power supply section 5 BS receiving section 10 Speaker 12 CRT 13 TV reception/video power supply section 14 Audio circuit section 16 Video mute switch

Claims (1)

[Claims] Claim 1: A television receiver with a built-in satellite broadcast receiver, comprising a satellite broadcast receiver capable of receiving independent audio broadcasts, and an audio circuit that processes and outputs the independent audio broadcasts received by the satellite broadcast receiver. , a television with a built-in satellite broadcasting receiver, characterized in that, when the satellite broadcasting receiving unit receives an independent audio broadcast, the power of components other than the satellite broadcasting receiving unit and the audio circuit is turned off, or the video signal is muted. receiver.