KR19990033066A - Partial Mode Switching Method in Televideo - Google Patents

Abstract

According to the present invention, when a specific button, for example, a video step setting button is operated during video playback, an image signal according to television broadcasting and a caption character according to video playback are output on the CRT of the television, and an audio signal according to television broadcasting is output through the speaker of the television. Or it relates to a partial mode switching method in the tele-video to output the audio signal according to the video playback, the television function for performing the playback processing operation for the broadcast signal transmitted from the broadcasting station, and driven by the tape drive mechanism 32 In the mode switching method of a tele video, which is capable of a scheduled recording / playback, in which a video tape recorder function for performing a recording / playback operation is performed on a video tape T, the user controls the control signal input unit 10 in the video playback mode. When the video step setting button is operated, A video signal according to the broadcast output, and at the same time a first step of displaying the subtitle text according to the video playback; A second step of outputting a voice signal according to the video reproduction through a speaker of a corresponding television when the video step setting button is re-operated in the first step; When the video step setting button is re-manipulated in the second stage, the video / audio signal according to the video reproduction is output through the CRT and the speaker of the corresponding television.

Description

Partial Mode Switching Method in Televideo

The present invention relates to a partial mode switching method in tele video, and more particularly, when a specific button, for example, a video step setting button is operated during video playback, on a CRT of the television, a video signal according to a television broadcast and a subtitle character according to video playback. The present invention relates to a partial mode switching method in tele-video for outputting a voice signal according to a television broadcast or a voice signal according to video reproduction through a speaker of a corresponding television.

Televisions for reproducing and outputting video signals and audio signals included in broadcast signals transmitted from a broadcasting station are signal-coupled to a video tape recorder (VCR) or a laser disc player (LDP) and reproduced on a video tape or a laser disc. It is also used as a video and audio output device for audio and audio signals. In the related art, a VCR, which is a playback device of a video signal and an audio signal, and a television coupled to the VCR are configured as independent entities, but recently have a complex function. It is a state to propose a televideo (TVCR) by combining a designed television and a VCR.

The tele video includes a series of devices for performing a VCR function, that is, a reel for driving a video tape mounted in a deck at a constant speed, and a video / audio signal recorded on the video tape, A plurality of audio / video heads for recording the video / audio signals, the audio / video heads being apparently installed, amplifying means for amplifying the video / audio signals read out by the audio / video heads, and the audio / video heads And a drum which rotates synchronously to read the video / audio signal recorded on the video tape or to record the video / audio signal on the video tape.

If you want to search for a television channel with the videotape installed in the deck equipped with the televideo, and you have set the playback mode for that videotape, you must stop the videotape and then search for the television channel. In the meantime, even if they wanted to know the contents of the videotape, they had to check the contents by switching to the videotape playback mode and could not check the contents of the television channel and the videotape.

Accordingly, the present invention has been made in view of the above circumstances, and when a particular button, for example, a video step setting button is operated during video playback, the video signal according to the television broadcast and the caption text according to video playback are output on the CRT of the television. It is an object of the present invention to provide a partial mode switching method in a televideo through which a voice signal according to a television broadcast or a voice signal according to video reproduction is output through a speaker of a television.

According to the present invention for realizing the above object, there is provided a television function for performing a playback processing operation on a broadcast signal transmitted from a broadcasting station, and performing a recording / playback operation on a video tape T driven by a tape driving mechanism. In the mode switching method of the tele-video which can be scheduled recording / playback with the mixed video tape recorder function, when the video step setting button is operated by the control signal input unit in the video playback mode, the image according to the television broadcasting on the CRT A first step of outputting a signal and displaying caption characters according to video playback; A second step of outputting a voice signal according to the video reproduction through a speaker of a corresponding television when the video step setting button is re-operated in the first step; Partial mode switching in the tele video, characterized in that the third step of outputting the video / audio signal according to the video playback through the CRT and the speaker of the television when the video step setting button is re-operated in the second stage Provide a method.

According to the present invention consisting of the above steps, when the user operates the video step setting button to check the contents of the video tape while watching television on the CRT of the television, the video signal of the television broadcast and the subtitle characters in accordance with the video playback OSD processing When the video level setting button is re-operated, the audio signal according to the video playback is output on the speaker of the television. When the video level setting button is re- operated, it is switched to the normal video mode and the video is reproduced on the CRT of the television. The video signal according to the video output is output through the speaker.

1 is a block diagram of a tele video to which the present invention is applied;

2 is a flowchart illustrating a method of partial mode switching in televideo according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: control signal input unit, 12: control unit,

14: OSD processing unit, 16: tuner,

18: audio IF module, 20: video IF module,

22: A / V switching unit, 24: audio signal processing unit,

26: audio amplifier, 28: video signal processing,

30: video amplification part, 32: tape driving mechanism,

34: signal recording / reading unit, 36: video / audio signal processing unit,

38: The subtitle detection unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a tele video to which the present invention is applied. In FIG. 10, reference numeral 10 denotes a control signal input unit for controlling the overall function of a corresponding tele video, and the control signal input unit 10 corresponds to a corresponding tele video. Remote control is applied to the remote control of the video or a control panel defined on the front of the tele-video, the control signal input unit 10 in the present invention, the main power on / off button for setting the main power on / off function And a video step setting button for stepwise setting of the video tape and a series of buttons for controlling the video function, for example, a playback key for setting the playback mode and a stop key for stopping the playback operation.

Reference numeral 12 is a control unit for controlling the overall function of the tele-video in response to a plurality of button operations for setting the control function provided in the control signal input unit 10, in the present invention, the control unit 12 is a video step setting button Corresponding to the operation of (10b), the A / V switching unit to be described later is controlled to enable partial mode switching.

A reference numeral 14 denotes an OSD processor which generates predetermined OSD characters to OSD display a function set by the control signal input unit 10 on a CRT screen under the control of the control unit 12, and 16 is received through an antenna. A tuner for tuning a specific channel based on a tuning voltage VT read and provided by a channel data storage unit (not shown) among the plurality of broadcast channels under the control of the control unit 12. 16) includes a plurality of tuners 16a for tuning a viewing channel and a tuner 16b for tuning a recording channel or a search channel for performing a function such as reserved recording or channel search when tuning a specific channel. Are employed.

Reference numeral 18 denotes an audio IF module for IF amplifying a broadcast signal of a channel tuned by the tuner 16 and extracting a voice signal from the IF amplified broadcast signal, and 20 denotes a channel tuned by the tuner 16. The IF signal is a video IF module for extracting a video signal from the IF-amplified broadcast signal after IF amplification, and 22 is a video / audio signal applied from the video / audio IF modules 18 and 20 and a video / to be described later. Image / audio signal applied from the video / audio IF module 20, 18 based on a predetermined mode switching signal SW output from the controller 12 with respect to the video / audio signal applied by the audio signal processor 36. An A / V switching unit for switching the processing path for the audio signal and the video / audio signal from the video / audio signal processor 36 to be described later.

In addition, reference numeral 24 denotes a voice signal that is switched and output from the A / V switching unit 22 and is set in the control signal input unit 10, for example, to perform a voice processing operation such as volume adjustment, voice surround or voice multiplex processing. A voice signal processing unit, 26 is a voice amplifying unit which amplifies the voice signal output from the voice signal processing unit 24 so as to be reproduced through a speaker SP as a voice output device connected to a rear stage, and 28 is the control signal. An image signal processing unit for performing an image related processing function designated by the input unit 10, for example, adjusting luminance / contrast, or inserting an OSD text signal generated by the OSD processing unit 14 on the screen, where 30 is the image. An image amplifying unit which amplifies the image signal processed by the signal processing unit 28 to be displayed on the CRT apparatus.

In FIG. 1, reference numeral 32 denotes a reel motor for driving the video tape T under control of the controller 12 based on a function set based on a button operation configured by the control signal input unit 10. (Not shown) and a drum motor (not shown) are provided to drive the video tape T in the reverse direction by driving the reel motor and the drum motor.

Reference numeral 34 denotes a plurality of audio / video heads configured to read audio / video signals from the video tape T driven by the tape driving mechanism 32 or to output video and audio signals to the video tape T. A signal recording / reading unit for recording, 36 is a video / audio signal processing unit having a path for processing a video signal and an audio signal to be recorded on the video tape T by the signal recording / reading unit 34, 38 Is a caption detection unit for detecting caption characters from a video signal according to video reproduction output from the signal recording / reading unit 34.

The operation according to the television function in the televideo having the above-described configuration will be briefly described.

When the control signal input unit 10 is turned on by the control signal input unit 10 and then a tuning signal for a specific channel is input, the control unit 12 receives a tuning voltage VT corresponding to the tuning signal from one of the tuners 16. 16a), and thus the voice signal of the channel tuned by the tuner 16a is IF amplified by the voice IF module 18 and then detected, and then the voice signal is transmitted through the A / V switching unit 22. The voice signal processing unit 24 is applied to the processing unit 24, and the voice signal processing unit 24 processes the voice signal on the basis of the volume control signal or the voice multiple control signal set through the control signal input unit 10, and the voice amplifier 26 The audio signal amplified by the voice amplifier 26 is applied to the speaker SP and is reproduced and output.

In addition, the image signal of the channel tuned by the tuner 16 is IF amplified by the image IF module 20 and then detected, and then, to the image signal processor 28 through the A / V switching unit 22. The video signal processor 28 performs RGB processing for reproducing the video signal and performs the insertion process of the OSD text signal provided by the OSD processor 14 under the control of the controller 12. The video signal amplified by the video amplifier 30 is output on the CRT apparatus.

In addition, when the user sets the playback mode of the VCR function through the control signal input unit 10 in the televideo having the above-described configuration, the control unit 12 is the tape drive mechanism 32 and the signal recording / reading unit. Control the 34 so that the video / audio signal recorded on the video tape T mounted in the deck is read, and the video / audio signal read out by the signal recording / reading unit 34 is a video / audio signal processing unit. It is processed into a reproducible signal at 36 and then applied to the A / V switching section 22. At this time, the control unit 12 applies a predetermined mode switching signal SW to the A / V switching unit 22 so that the video / audio signals applied from the video / audio signal processing unit 36 are respectively the video signal processing unit. (28) and the switching control to be applied to the audio signal processing unit 24, so that the video signal processing unit 28 and the audio signal processing unit 24 that received a predetermined video / audio signal is applied to the video / audio signal Playback processing is performed to output the video / audio signal from the video tape T through the CRT and the speaker SP.

Hereinafter, a partial mode switching method in televideo according to an embodiment of the present invention will be described in detail with reference to the flowchart shown in FIG. 2.

First, the control unit 12 determines whether the video step setting button 10b configured in the control signal input unit 10 is operated (step 100), and the video step setting button 10b is operated by a user. When the state is determined (YES in step 100), the control unit 12 applies a predetermined switching signal to the A / V switching unit 22 so that the video signal output from the video IF module 20 is output. The path is set to be applied to the video signal processor 28 (step 102).

Subsequently, the control unit 12 receives the caption data detected by the caption detection unit 38 and controls the OSD processing unit 14 to output the OSD characters corresponding to the caption data on the CRT screen (step 104). The OSD text signal generated by the OSD processor 14 is applied to the video signal processor 28 to be inserted into the corresponding video signal and applied to the video amplifier 30, and the video amplifier 30 The video signal of the amplified television and the OSD subtitle signal of the video tape are displayed.

Subsequently, the controller 12 determines whether the video step setting button is re-operated, and if it is determined that the video step setting button is re-operated (YES in step 106), the controller 12 switches to the A / V switching unit 22. A signal is applied to route the audio signal from the video / audio signal processor 36 to the audio signal processor 24 (step 108).

On the other hand, the audio signal routed by the A / V switching unit 22 and applied to the audio signal processing unit 24 is reproduced by the audio signal processing unit 24, and the television is transmitted through the audio amplification unit 26. The output is reproduced through the speaker SP (step 110).

Then, the control unit 12 determines whether the video step setting button is re-operated (step 112), and if it is determined that the operation of the video step setting button is determined (YES in step 112), the control unit 12 ) Applies a predetermined switching signal to the A / V switching unit 22 so that the video / audio signal from the video / audio signal processor 36 is transmitted to the video signal processor 28 and the audio signal processor 24. Route to be authorized.

Therefore, the video signal applied from the video / audio signal processing unit 36 via the A / V switching unit 22 is reproduced by the video signal processing unit 28 to be imaged on the CRT through the video amplifying unit 30. At the same time, the audio signal is reproduced and output from the video / audio signal processing unit 36 via the A / V switching unit 22, and the audio signal processing unit 24 reproduces the audio signal. Through the speaker SP.

As described above, according to the partial mode switching method in the tele video according to an embodiment of the present invention, whenever the video step setting button is operated, subtitle characters corresponding to video playback are output to the CRT of the television or the video is output through the speaker. As the audio signal is output according to the playback, when the user searches for a television broadcast temporarily while playing the video, the user can check the playback state of the video tape and quickly switch to the normal video mode upon the user's request. do.

Claims (4)

A scheduled recording in which a television function for performing a playback processing operation on a broadcast signal transmitted from a broadcasting station and a video tape recorder function for performing a recording / playback operation on a video tape T driven by the tape driving mechanism 32 are mixed. In the mode switching method of the video / playback possible, In the video playback mode, when the user manipulates the video step setting button through the control signal input unit 10, the first step of outputting a video signal according to television broadcasting on the CRT and displaying caption characters according to video playback; ; A second step of outputting a voice signal according to the video reproduction through a speaker of a corresponding television when the video step setting button is re-operated in the first step; Partial mode switching in the tele video, characterized in that the third step of outputting the video / audio signal according to the video playback through the CRT and the speaker of the television when the video step setting button is re-operated in the second stage Way. The OSD control unit 14 of claim 1, wherein the control unit 12 controls the OSD processing unit 14 based on the caption data detected by the caption detection unit 38 in response to the video reproduction and input to the control unit 12 in the first step. And controlling the display so that OSD characters corresponding to the caption data are displayed on the CRT. The method of claim 1, wherein in the second step, the control unit 12 controls the processing path for the audio signal according to the video playback so that the audio signal according to the video playback is reproduced through the speaker. Partial mode switching method. The method of claim 1, wherein in the third step, the control unit 12 controls the processing path for the video / audio signal according to video playback so that the video / audio signal according to video playback is reproduced and output through the CRT and the speaker. Partial mode switching method in a tele video characterized by.