KR19980016543A - Television receiver with audio information playback output function when watching channel returns - Google Patents

Abstract

According to the present invention, when a user searches a program of another channel for a while and then returns to a channel that was originally watched, the recorded voice information is reproduced when the user returns to the viewing channel to record and reproduce the audio of the viewing channel that was not heard during the other channel search. A television receiver having an output function; In accordance with the first and second tuners for outputting the main sub picture, the video / audio processor for processing the broadcast signals tuned by the first and second tuners and outputting the corresponding video and audio signals, and the main sub picture switching signal. A television receiver having a switching unit for selectively switching and outputting respective video and audio signals and an audio output unit for outputting main screen audio output by the switching unit as an audible sound; A function selection unit for selecting a viewing channel audio output recording function, a flag storage unit for storing state data on whether a function is selected by a user, and a flag set in this flag storage unit while controlling the entire apparatus A control unit that controls the audio output recording operation of the viewing channel based on the data level, a codec that codes an analog audio signal or decodes the digital audio signal and converts it into an analog signal, and records and reads the digital audio signal input and output from the codec. A digital signal processor (DSP) for controlling outgoing control, a voice data storage unit for storing voice data processed by the digital signal processor (DSP), and a sub-screen audio signal output from the switching unit under control of the controller; Outputs a reproducing output audio signal outputted by switching to a CODEC side or outputted from a codec. Including the change-over switch to the output switches to the side portions characterized in that configured.

Description

Television receiver with audio information playback output function when watching channel returns

The present invention relates to a two-tuner television receiver having a sub picture output function. In particular, when a user searches for a program of another channel and then returns to a channel that was originally watched, the voice of a viewing channel that was not heard while searching for another channel is recorded. The present invention relates to a television receiver having a sound information reproduction output function recorded upon returning a viewing channel to be outputted.

Recently, some commercially available television receivers (hereinafter referred to as TV receivers) have adopted a sub picture function that allows one screen to be divided and output two or more channel programs simultaneously. It shows the internal structure of the TV receiver equipped with a screen function.

In Fig. 1, reference numeral 22 denotes a first tuner TUNER for the main picture, 23 denotes a first IF amplifier for amplifying an intermediate frequency (IF) signal output from the first tuner 22, and 24 denotes a first tuner. 1, the first P / S separator comprising a surface acoustic wave filter (SAW FILTER) for separating the IF signal output from the IF amplifier 23 into an image intermediate frequency signal PIF and an audio intermediate frequency signal SIF, respectively. 25 is a first video signal detector for detecting a video signal from the video intermediate frequency signal PIF separated and output from the first P / S separator 24, and 26 is the first P / S separator 24. And a first audio signal detector for detecting the audio signal from the audio intermediate frequency signal outputted separately.

On the other hand, reference numeral 32 is a second tuner for a picture in picture (PIP), 33 is a second IF amplifier for amplifying an intermediate frequency signal output from the second tuner 32, and 34 is a second tuner. 2 to separate the IF signal output from the IF amplifier section 33 into an image intermediate frequency signal PIF and an audio intermediate frequency signal SIF, respectively, such as the surface acoustic wave filter as in the first P / S separation unit 24. The second P / S separation section 35 made up is a second audio signal detection section that detects the audio signal from the audio intermediate frequency signal separated and output from the second P / S separation section 34.

In addition, reference numeral 70 is a remote control device further provided with a predetermined function key (not shown), 80 is a receiving unit for receiving the far infrared signal transmitted from the remote control device 70 and converts it into an electrical signal, 90 Is a microprocessor as a control unit for outputting a predetermined clock signal CL and data signal DATA for controlling the entire apparatus in accordance with the contracted code signal output from the receiver 80.

Reference numeral 20 denotes a video signal output from the first and second video signal detectors 25 and 35 and the first and second audio signal detectors according to a predetermined control signal from the microprocessor 90 ( 26 and 36, respectively, a switching unit for selectively switching the audio signal output, and reference numeral 28 processes the audio signal for the main screen output from the switching unit 20 under the control of the microprocessor 90. A first voice processing unit, and 29 is a voice amplifying unit for amplifying the voice signal processed by the first voice processing unit 28 and outputting the amplified voice signal to the speaker 30 connected to the rear stage, and 27 is outputting from the switching unit 20. A second voice processing unit for processing a voice signal for the sub-screen to be output through a headphone jack (not shown) installed in the TV main body.

On the other hand, reference numeral 110 outputs R, G, B (Red, Green, Blue) and luminance signal (Y) for generating the main screen and sub-screen based on the video signal selected and output from the switching unit 20 The image processor 120 is a CRT driver that drives the CRT 130 based on the R, G, B, and luminance signals Y output from the image processor 110.

That is, according to the device having the above-described configuration, when the user selects the sub picture function through the remote control device 70, the microprocessor 9 controls the first tuner 22 to select a channel to output to the main screen. In addition to tuning, the video channel to be output to the sub-screen is selected through the second tuner 32, and as a result, the main screen and the sub-screen image are simultaneously output on one screen at a predetermined ratio on the screen of the CRT 130. Will be.

Meanwhile, in the case of the voice output, the main screen voice is normally output through the speaker 30, but the voice output for the sub screen is output through the headphone jack (not shown). There was a problem in that the main sub-screen switching to check the program of the sub-screen output channel while watching the press program to the main screen, the audio of the press program switched to the sub-screen is not heard.

The present invention has been made in view of the above circumstances, and when a user searches a program of another channel for a while and then returns to the channel that was originally watched, the user can record and play the audio of a viewing channel that was not heard while searching for another channel. It is an object of the present invention to provide a television receiver having a recorded sound information reproduction output function upon returning to a previous viewing channel.

1 is a block diagram showing the internal structure of a conventional general sub-screen providing function television receiver.

Fig. 2 is a block diagram showing the internal structure of a television receiver having a voice information reproduction output function recorded upon returning a viewing channel according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: antenna 9, 190: microprocessor

22: first tuner 23: first IF amplifier

24: first P / S separation unit 25: first video signal detector

26: first voice signal detector 27: second voice processor

28: first voice processing unit 29: voice amplifier

30: speaker 32: second tuner

33: second IF amplification unit 34: second P / S separation unit

35: second video signal detector 36: second audio signal detector

70, 170: remote control device 80: receiving unit

110: image processing unit 120: CRT driving unit

130: CRT 180: flag storage unit

200: changeover switch 210: CODEC (coder-decoder)

220: DSP (Digital Signal Processor)

230: voice data storage unit

In order to realize the above object, a television receiver having a sound information reproduction output function recorded upon returning to a viewing channel according to the present invention is tuned by the first and second tuners and the first and second tuners for main screen image output. A video / audio processor for processing the broadcast signal and outputting the corresponding video and audio signal, and a switching unit for selectively switching and outputting each video and audio signal according to the main screen switching signal and the main screen output from the switching unit. A television receiver having a sound output section for outputting sound as an audible sound; A function selection unit for selecting a viewing channel audio output recording function, a flag storage unit for storing state data on whether a function is selected by a user, and a flag set in this flag storage unit while controlling the entire apparatus A control unit that controls the audio output recording operation of the viewing channel based on the data level, a codec that codes an analog audio signal or decodes the digital audio signal and converts it into an analog signal, and records and reads the digital audio signal input and output from the codec. A digital signal processor (DSP) for controlling outgoing control, a voice data storage unit for storing voice data processed by the digital signal processor (DSP), and a sub-screen audio signal output from the switching unit under control of the controller; Outputs a reproducing output audio signal outputted by switching to a CODEC side or outputted from a codec. Including the change-over switch to the output switches to the side portions characterized in that configured.

That is, according to the present invention having the above-described configuration, when the user searches for a program of another channel and then returns to the channel where he / she originally watched, by recording and reproducing the audio of the watching channel that was not heard during the other channel search You can hear the audio output when checking other channels.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention.

Fig. 2 is a block diagram showing a television receiver having a voice information reproduction output function recorded upon returning a viewing channel according to an embodiment of the present invention. The same reference numerals refer to the same elements as those shown in Fig. 1. The numbers will be omitted and the detailed description thereof will be omitted.

In FIG. 2, reference numeral 170 is a remote control apparatus further including a function key for selecting a viewing channel audio output recording function, 180 is a flag storage unit for storing state data on whether a function key is selected by a user, and 190 is A microprocessor as a control unit which controls the overall apparatus and controls the audio output recording operation of the viewing channel on the basis of the level of flag data set in the flag storage unit 180.

Reference numeral 210 denotes a coder (coder-decoder) for encoding an analog voice signal or decoding a digital voice signal and converting the analog voice signal into an analog signal, and reference numeral 220 denotes a digital input / output from the codec 210. Digital signal processor (DSP) for recording and reading and controlling the audio signal, 230 is a voice data storage unit for storing the voice data processed by the digital signal processor (DSP) 220, 200 is A switching switch for selectively switching the sub-screen audio signal output from the switching unit 20 to the codec 210 and the second voice processing unit 27 under the control of the microprocessor 190. .

Next, the operation of the device having the above configuration will be described.

The broadcast is a one-time personality that is excellent when it flows unless it is left as a record. For example, when a user wants to check a broadcast program of another channel while watching a press program, the remote control device (170) before switching channels (170) When the function key included in the) is pressed, the microprocessor 190 maintains that the function key is selected by setting the state flag of the flag storage unit 180 to '1'.

Then, when the user performs channel switching by operating the remote controller 170, the microprocessor 190 checks the flag level of the flag storage unit 180, when the flag level is '1' The sub-screen audio output of the switching unit 20 is switched to the codec 210 by controlling the switching switch 200.

As a result, the sub-screen audio output is converted into a digital signal by the codec 210 and stored in the voice data storage unit 230 by the digital signal processing processor (DSP) 220.

Then, when the user selects the channel originally watched through the remote control device 170, although not shown, the microprocessor 190 controls the digital signal processor 220 and the switching switch 200, voice The sub-screen audio output stored in the data storage 230 is reproduced and output to the speaker 30 through the first voice processing unit 28.

That is, according to the present invention, when a user searches a program of another channel for a while and then returns to the channel that was originally watched, the user can record and play back the audio of the viewing channel that he / she has not heard during the other channel search.

On the other hand, the present invention is not limited to the above embodiments and can be variously modified within the scope not departing from the technical gist of the present invention.

Claims (1)

First and second tuners for main and sub picture output, video / audio processing unit for processing broadcast signals selected by the first and second tuners and outputting corresponding video and audio signals, and main and sub picture switching signals. A television receiver having a switching unit for selectively switching and outputting respective video and audio signals and an audio output unit for outputting the main screen audio output by the switching unit as an audible sound according to the present invention; A function selection unit for selecting a viewing channel audio output recording function; Flag storage unit for storing the status data for whether the user selects the function, A control unit which controls the overall apparatus and controls the audio output recording operation of the viewing channel based on the level of flag data set in the flag storage unit; Codec (coder-decoder) for encoding analog voice signals or decoding digital voice signals and converting them into analog signals; A digital signal processor (DSP; Digital Signal Processor) for recording and reading and controlling digital voice signals inputted and outputted from the codec; A voice data storage unit for storing the voice data processed by the digital signal processing unit (DSP), And a switching switch for switching the sub-screen audio signal output from the switching unit to the codec side under the control of the control unit or switching the sub output audio signal output from the codec to the voice output unit. And a television receiver having audio information reproduction output function recorded upon return to a viewing channel.