JPH0898111A - Television receiver - Google Patents

Abstract

PURPOSE: To provide a television receiver outputting a desired sound mode (monoral broadcast, streo broadcast, bilingual broadcast, sound multiplex broadcast, B-mode broadcast and the like) whenever a viewer changes a channel or whenever the sound output screen of two-screens display is changed. CONSTITUTION: Signals inputted from an U/V tuner 3, a CS/BS tuner 4 and an external video input 6 are inputted to a sound mode detection 21. The desired sound mode is selected by the sound mode detection 21, a memory 19 and a main microprocessor 14, and it is outputted to an audio processor 10, AMP 12 and a speaker 13. When the viewer changes the channel and when he switches the sound output screen of multiple picture display, it is not necessary to reset the sound mode, he is released from the trouble of setting, satisfied with a video and sound broadcasted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved television receiver, and more particularly to a television receiver having an improved method of selecting a sound mode of a broadcast signal.

[0002]

2. Description of the Related Art In recent years, with the remarkable development of telecommunication technology, new media of wireless system and wired system have appeared one after another. High-definition high-definition (HDTV), clear-vision (EDTV), multi-channel broadcasting using satellite broadcasting technology, PCM audio broadcasting, and data broadcasting are planned, and so-called broadcasting multimedia is advancing. There is. Some of these new media broadcasts are in the practical stage.

Electrical equipment in response to this trend is being developed one after another, and various composite products and multi-function products have appeared. For example, in television receivers, high-definition (HDTV) and wide-screen television receivers having an aspect ratio of 16: 9 are also popular. These television receivers take advantage of the features of the landscape screen to make a picture-in-picture (Picture in Picture:
inP ") and a picture and picture (picture and picture: hereinafter referred to simply as" two screens ") capable of displaying two screens. On the other hand, with regard to audio, it is also compatible with stereo broadcasting and audio multiplex broadcasting, and it is now possible to enjoy stereo sound with a built-in stereo power amplifier and speaker, or to enjoy other audio on the same channel. . The present invention is related to the selection of these audio modes, and is intended to provide a television receiver having a more user-friendly interface.

At present, the audio modes of broadcast signals to be broadcast are, in addition to monaural broadcast, stereo broadcast, bilingual broadcast,
Broadcast in various audio modes such as audio multiplex broadcasting and B-mode broadcasting. For example, W in satellite broadcasting
OWOW (BS-5ch) uses WO on the same channel
S, which is a PCM radio broadcast using WOW independent audio
t. GIGA (Saint Giga) is broadcast (all are registered broadcasting station names of Japan Satellite Broadcasting Co., Ltd.), and it is made possible to enjoy a sound different from the WOWOW broadcast content. In addition, the NHK satellite broadcasts a test voice as a sub-voice in addition to the main voice, and these can be viewed by the viewer's selection.

When the viewer selects one of these audio modes, he or she operates a remote control button (not shown) such as "audio selection" to select a desired audio mode.
For example, when the viewer wants to select the sub audio of the audio multiplex broadcast, he / she operates the "audio selection" button (main-main) →
It is necessary to select in the order of (sub-sub) → (main-sub).
Further, since these are reset when the power is cut off, it is necessary to perform a selection action from (main-main) again when the power is turned on.

Next, a specific example of the audio output mode in the two-screen display according to the present invention will be described with reference to FIG. The conventional television receiver can select an audio mode as shown in FIG. That is, it is possible to output one of the sounds in the two screens when the two screens are displayed, and the sound output can be switched. That is, when the sound of the BS-5 channel of the right screen R is being output as shown in FIG. 3A, the sound output from the 3rd channel of the left screen L by operating, for example, the "speech replacement" button or the like. Can be changed to When changing the audio output, the audio mode of the screen that was selected before the switching was selected again, or it was switched to the predefined default audio mode.

[0007]

However, in the conventional television receiver, an undesired audio mode is selected every time the viewer changes the channel, and the viewer feels uncomfortable. Then, when the viewer changes the channel, it is necessary to reset the audio mode to the desired audio mode each time, so that there is a possibility that the viewer may lose interest in broadcasting.

Further, in a two-screen display or a PinP display in a television receiver having a plurality of tuners, for example, in the two-screen display, two screens are displayed on one display unit to output audio during viewing. Each time the screen is switched, it is necessary to reset the audio mode one by one, and this series of operations for the viewer is very complicated and troublesome.

An object of the present invention is to solve the above problems, and the setting is made every time the viewer changes the channel or every time the audio output screen of the two-screen display is changed. (EN) Provided is a television receiver which eliminates the troublesomeness of setting a sound mode which must be provided.

[0010]

In order to solve such a problem, in the present invention, in a television receiver capable of receiving a plurality of audio modes, detecting means for receiving a broadcast signal and detecting the audio mode, and A storage unit for storing the audio mode designated by the viewer and a switching unit for comparing the audio mode detection unit with the storage unit to switch to the audio mode designated by the viewer last time are provided. And the said subject was solved by switching to the audio mode designated for each channel.

Similarly, in a television receiver capable of displaying a plurality of screens on one screen at the same time, an audio mode detecting means for receiving a broadcast signal to detect an audio mode and an audio mode previously designated by a viewer are stored. A storage means and a switching means for comparing the sound mode detection means with the storage means and switching to the sound mode designated by the viewer last time are provided. And the said subject was solved by switching to the audio mode designated for each screen.

[0012]

In a television receiver capable of receiving a plurality of audio modes, detection means for receiving a broadcast signal to detect the audio mode, storage means for storing the audio mode previously designated by the viewer, and said audio mode detection And a switching means for comparing the storage means with the storage means and switching to the audio mode designated by the viewer last time. Then, by switching to the audio mode designated for each channel, the desired audio mode can be always selected.

Therefore, in the television receiver capable of displaying a plurality of screens on one screen at the same time, the audio mode detecting means for receiving the broadcast signal to detect the audio mode and the audio mode previously designated by the viewer are stored. A storage means and a switching means for comparing the sound mode detection means with the storage means and switching to the sound mode designated by the viewer last time are provided. Then, it is possible to switch to the audio mode designated for each screen.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the television receiver of the present invention will be described below with reference to FIGS.

First, the structure and operation of the television receiver of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing an embodiment of a television receiver of the present invention. In the television receiver shown in FIG. 1, the U / V antenna 1 receives a broadcast signal and generates an RF signal, The RF
The signal is sent to the U / V tuner 3. The U / V tuner 3 includes a tuner for demodulating an RF signal, music selection, and VIF /
A processing circuit such as a SIF circuit and an audio multiplex decoder is interpolated, and music is selected and demodulated by these circuits, and a composite video signal V (hereinafter simply referred to as "video signal") is output to the U / V tuner 3. ,), Stereo audio signals L and R are output. These signals are input to the audio mode detector 21 in the next stage. In the voice mode detection 21, the voice mode at this time is detected and the memory 1
9 and is stored in the memory 19. When the viewer newly sets the audio mode, the newly set audio mode is stored and selected as necessary.

Similarly, 12 GH transmitted from a broadcasting satellite
Radio waves in the z band are received by the satellite antenna 2 and are sent to C
Center frequency is 1GHz band 2 by S / BS converter
It is converted into a CS / BS-IF signal having a frequency bandwidth of 7 MHz and transmitted to the CS / BS tuner 4. Further, based on the control of the CS / BS microcomputer 20, the CS
/ BS tuner 4 selects and demodulates, CS / B
A video signal V and stereo audio signals L and R are output to the output of the S tuner 4. These signals are input to the audio mode detector 21 in the next stage. In the audio mode detector 21, the audio mode at this time is sent to the memory 19 and stored therein, and the stored audio mode is reproduced by the viewer again on the same channel. When selected, this voice mode is selected again based on the data stored in the memory 19.

These outputs are collectively sent to the AV switch 5 at the next stage. Further, the external video input 6 is provided for connecting an external input such as a video disc player or a hi-fi VTR, and for example, a hi-fi VT.
The video signal V and the stereo audio signals L and R from R are input to the AV switch 5 at the next stage.

In the AV switch 5, the input signal switching operation is performed, and when the output of the AV switch 5 is the video signal V, it is input to the three-dimensional comb filter 7. The three-dimensional comb filter 7 has a function of reducing cross color and dot interference when separating the luminance signal Y and the carrier color signal C. The video signal V is separated into the luminance signal Y and the carrier color signal C in the three-dimensional comb filter 7, returned to the AV switch 5 again, and sent to the video processor 9 in the next stage as the main luminance signal Y and the carrier color signal C. It The sub video signal V is input to the PinP block 8 and is controlled by the main microcomputer 14 in the PinP block 8 via the I ² C BUS interface to display a plurality of screens such as a sub-screen display and a two-screen display. Image processing such as composition and alignment for display on the display unit is performed. The image-processed luminance signal Y and color difference signal are output to the video processor 9 in the next stage.

The video processor 9 is a so-called Y chroma circuit for performing R-Y demodulation, B-Y demodulation and G-Y matrix processing as well as performing R-Y demodulation, BY demodulation and G-Y matrix processing, as well as performing luminance signal amplification and color signal amplification. , A function commonly referred to as a jungle circuit for performing synchronization processing and the like is integrally provided. The input video signal is subjected to processing such as picture control and image quality adjustment in the video processor 9 and further generates and outputs R, G and B signals for driving the CRT 11 in the next stage.

Further, the video processor 9 controls the picture, the brightness, the hue and the like and corrects the image distortion by the control signal from the main microcomputer 14 according to the control format of the I ² C BUS interface. Further, the data necessary for the screen display sent from the main microcomputer 14 is input to the display microcomputer 15 and the display microcomputer 1
In 5, the predetermined data is shaped for the screen display IC 16 and sent to the screen display IC 16. Screen display IC1
6 outputs the R, G, B signals for display on the screen to the video processor 9 according to the instruction. The video processor 9 superimposes on the input signal and drives the CRT 11 to display various information as R, G, B signals in R, G, B colors on the screen.

Control of music selection and the like by the viewer is performed by the key 18 and the remote controller 2 provided in the television receiver of the present invention.
The operation information of the remote controller 22 is received by the light receiving unit 17 and input to the main microcomputer 14, and a control signal is sent to each peripheral or the like via the I ² C BUS interface and executed. Information necessary for various controls of the main microcomputer 14 is stored in the memory 19 and is used for the purpose of the control.

The stereo audio signals L and R input from the U / V tuner 3, CS / BS tuner 4, external video input 6 and the like and selected by the AV switch 5 are sent to the audio processor 10. The audio processor 10 operates to adjust the volume level, volume balance, surround effect, sound quality, etc. based on the operation information from the viewer processed by the main microcomputer 14. A control command of the main microcomputer 14 is issued via the I ² C BUS interface, and the audio signals L and R controlled to a desired audio mode are output to the AMP 12.
Then, the power is amplified by the AMP 12 and output to the speaker 13, and reproduced as a stereo audio signal in the speaker 13. In addition, the AMP12 in FIG.
The speaker 13 is actually stereo, but is shown in monaural for simplification.

Next, referring to FIG. 2, a method of setting the two-screen audio of the television receiver according to the present invention will be described with reference to a flowchart. In step SP2, the audio mode setting function started in step SP1 receives a command (selection command) to change the audio output screen in the dual screen display by the viewer operating the remote controller or the key. Step SP
In step 3, the voice mode of the corresponding screen is called from the memory in response to the selection command.

At step SP4, the main microcomputer determines whether or not the voice mode can be reproduced on the currently selected screen. If it cannot be reproduced, step S
If it can be reproduced, the process proceeds to step SP5. In step SP5, the main microcomputer determines whether the currently selected voice output screen is U / V or BS / CS. When the source of the audio output screen is U / V, the process proceeds to step SP6, and a control signal is sent to the U / V tuner to control the audio mode to be reproduced. When the source of the selected audio output screen is BS / CS, the process proceeds to step SP7 and a control signal is sent to the BS / CS tuner to control the audio mode. Step SP
At 8, the voice mode setting function ends.

The present invention is not limited to the above embodiments, and various embodiments can be adopted. For example, although the television receiver has been described in this embodiment, it goes without saying that other AV equipment such as a VTR, a monitor device, a projector device,
It can also be applied to liquid crystal display devices and the like. Needless to say, the present invention can be developed into various forms without being limited to the above-described embodiment.

[0026]

As described above, according to the electronic device having the audio output terminal of the present invention, the audio mode for each channel is automatically discriminated according to the viewing mode of the viewer and the audio is output. , It is not necessary to reset the audio mode each time the viewer changes the channel, and the viewer can enjoy the video and audio broadcast without being bothered to set the audio mode. .

In particular, in a two-screen display such as a two-screen display or a PinP display of a television receiver having a plurality of U / V tuners, for example, two screens are displayed on one display unit while watching, It is not necessary to reset the audio mode each time the screen outputting the audio is switched, and the viewer can concentrate on viewing the broadcast video and audio as in the case described above.

[Brief description of drawings]

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

FIG. 2 is a flow chart for explaining a television receiver of the present invention.

FIG. 3 is a diagram showing a specific example of a sound output mode when displaying two screens according to the present invention, in which (a) is a sound output from the right screen and (b) is a sound output from the left screen. It is the figure output.

[Explanation of symbols]

 1 U / V antenna 2 Satellite antenna 3 U / V tuner 4 CS / BS tuner 5 AV switch 6 External video input 7 Three-dimensional comb filter 8 PinP block 9 Video processor 10 Audio processor 11 CRT 12 AMP 13 Speaker 14 Main microcomputer 15 Display Microcomputer 16 Screen display IC 17 Light receiving part 18 Key 20 CS / BS microcomputer 21 Voice mode detection 22 Remote control

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Kenichi Onuma 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Nao Fujimoto 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation

Claims (2)

[Claims] 1. In a television receiver capable of receiving a plurality of audio modes, an audio mode detecting means for receiving a broadcast signal and detecting the audio mode, and a storage means for storing an audio mode previously designated by a viewer. A television image receiving apparatus comprising: a switching unit that compares the audio mode detecting unit and the storage unit to switch to an audio mode designated by a viewer last time, and switches to an audio mode designated for each channel. Machine. 2. A television receiver capable of displaying a plurality of screens on one screen at the same time, and stores an audio mode detecting means for receiving a broadcast signal to detect an audio mode and an audio mode previously designated by a viewer. And a switching means for comparing the audio mode detection means with the storage means to switch to an audio mode designated by a viewer last time, each of which is switched to an audio mode designated for each screen. Television receiver to do.