KR950001564B1 - On-screen function circuit using teletext tv - Google Patents

On-screen function circuit using teletext tv Download PDF

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Publication number
KR950001564B1
KR950001564B1 KR1019870015700A KR870015700A KR950001564B1 KR 950001564 B1 KR950001564 B1 KR 950001564B1 KR 1019870015700 A KR1019870015700 A KR 1019870015700A KR 870015700 A KR870015700 A KR 870015700A KR 950001564 B1 KR950001564 B1 KR 950001564B1
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South Korea
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signal
teletext
demodulator
screen function
character generator
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KR1019870015700A
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Korean (ko)
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KR890011433A (en
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박만효
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주식회사금성사
최근선
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Priority to KR1019870015700A priority Critical patent/KR950001564B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

Abstract

The circuit performs on-screen function at TV mode using teletext character generator. The voice signal block consists of handler (6), demodulating the signal of remote controller (12) generating signal for controlling TV set, tuner (5), selecting TV channel, high frequency receiver (1), inputting TV signal, video signal demodulator (2), separating voice and video, voice signal demodulator (3), speaker (SP). The video signal block consists of color signal demodulator (9), teletext character generator (8), generating character at teletext mode, signal processor (7), recognizing teletext signal and processing, CPT (11), displaying screen by output signal of signal converter (10).

Description

문자다종방송(Teletext)수신기를 이용한 온스크린 기능회로On-screen function circuit using Teletext receiver

제1도는 본 발명은 블럭구성도.1 is a block diagram of the present invention.

제2도는 본 발명의 동작상태를 설명하기 위한 플로우 챠아트.2 is a flow chart for explaining the operating state of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1: 고주파 수신부 2 : 영상신호복조부1: high frequency receiver 2: video signal demodulator

3 : 음성신호복조부 4 : 수평·수직 드라이브회로3: audio signal demodulation unit 4: horizontal / vertical drive circuit

5 : 튜닝부 6 : 조정부5: tuning unit 6: adjusting unit

7 : 텔레텍스트신호처리부 8 : 텔레텍스트문자발생기7: teletext signal processing unit 8: teletext character generator

9 : 색신호복조부 10 : 신호전환부9: color signal demodulation unit 10: signal switching unit

11 : CPT 12 : 원격조정기11: CPT 12: Remote Controller

SP : 스피커SP: Speaker

본 발명은 TV모드시에는 수신기의 문자발생기내에 있는 다양한 문자들을 이용한 온스크린(ON-SCREEN)에 적합하도록 한 문자다중방송 수신기를 이용한 온스크린기능회로에 관한 것이다.The present invention relates to an on-screen function circuit using a character multi-broadcast receiver adapted to be on-screen (ON-SCREEN) using a variety of characters in the character generator of the receiver in the TV mode.

종래의 장치는 문자다중방송 수신기가 TV 수신기세트내에 내장되어 있던지 아니던지간에 온스크린 기능을 필요로 하게 되면 별도의 IC를 사용하여 온스크린기능을 수행하도록 하였다.Conventional devices are designed to perform on-screen functions by using separate ICs when the on-screen function is required, whether or not the character multi-broadcast receiver is embedded in a TV receiver set.

그러나 상개 종래의 장치에서는 온스크린기능을 수행하고자 할때에는 별도의 IC를 부가해야만 하기 때문에 회로의 구성이 복잡할 뿐만 아니라 원가 상승요인의 문제점이 있었다.However, in the conventional conventional devices, a separate IC must be added to perform the on-screen function, and the circuit configuration is complicated and there is a problem of cost increase factor.

본 발명은 상술한 종래의 문제점을 해소하기 위하여 이루어지는 것으로서, 문자다중방송 수신기 내부에 내장된 텔레텍스트 문자발생기를 사용하겨 TV모드시에 온스크린기능을 수행할 수 있도록 한 것으로서, 이를 첨부한 도면에 의하여 상술하면 다음과 같다.The present invention has been made to solve the above-mentioned problems, and it is possible to perform an on-screen function in a TV mode by using a teletext character generator built in a text multicast receiver. By the detailed description as follows.

제1도에서와 같이 TV를 시청하기 위하여 시청자가 원격조정기(12) 누르면 상기 원격조정기(12) 신호를 복조하여 TV세트를 조정하는 신호를 발생하는 조정부(6)와, 조정부(6)신호를 입력하여 원하는 TV채널을 선국하는 튜닝부(5)와, TV신호를 입력하는 고주파 수신부(1) 및 상기 고주파 수신부(1) 신호를 받아 음성 및 영상신호를 분리하는 영상신호 복조부(2)와 음성신호를 복조하는 음성신호 복조부(3) 및 스피커(S)로서 음성신호계를 구성하고, 상기 영상신호 복조부(2)를 거쳐 출력된 신호에서 색신호를 복조하는 색신호 복조부(9) 및 텔레텍스트신호를 인식, 처리하는 텔레텍스트 신호처리부(7) 및 텔레텍스트 모드시에 문자를 발생시키는 텔레텍스트 문자발생기(8)와, 상기 색신호복조부(9)의 출력신호와 상기 텔레텍스트 문자발생부(8) 출력신호를 전환시켜주는 신호전환부(10)와, 상기 신호전환부(10)의 출력신호에 의하여 화면을 디스플레이하는 CPT(11)로서 영상신호계를 구성하고 있으며, 여기서 수평, 수직 드라이브회로(4)에서 출력되는 신호에 의하여 원래의 화면이 재현되도록 구성한 것이다.As shown in FIG. 1, when the viewer presses the remote controller 12 to demodulate the TV, the control unit 6 generates a signal for demodulating the remote controller 12 signal and adjusts the TV set. A tuner 5 for inputting and tuning a desired TV channel, a high frequency receiver 1 for inputting a TV signal, and a video signal demodulator 2 for receiving audio and video signals and separating audio and video signals; The audio signal demodulator 3 and the speaker S which demodulate the audio signal constitute a voice signal system, and the color signal demodulator 9 and tele which demodulate the color signal from the signal output through the video signal demodulator 2; A teletext signal processor 7 for recognizing and processing a text signal, a teletext character generator 8 for generating characters in a teletext mode, an output signal of the color signal demodulator 9, and the teletext character generator (8) Switch the output signal The video signal system is configured as a signal switching unit 10 and a CPT 11 displaying a screen by the output signal of the signal switching unit 10, wherein the image signal system is used to output signals from the horizontal and vertical drive circuits 4. It is configured to reproduce the original screen.

이와같이 구성된 본 발명의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.

제1도에서 사용자가 TV를 시청하기 위하여 원격조정기(12)를 누르면 상기 원격조정기(12)에서 출력되는 신호가 조정부(6)에 입력된다In FIG. 1, when the user presses the remote controller 12 to watch TV, a signal output from the remote controller 12 is input to the controller 6.

이와같이 조정부(6)는 튜닝부(5)가 시청자가 원하는 채널을 선국하도록 하고, 여기서 고주파 수신부(1)는 TV신호를 받아 상기 튜닝부(5)의 조정에 의하여 정확히 원하는 채널을 선국한 후에 그 신호를 영상신호 복조부(2)에 입력시키고, 상기 영상신호 복조부(2)를 통한 TV신호는 음성신호계와 영상신호계로 각각 분리된다.In this way, the adjusting unit 6 causes the tuning unit 5 to tune the channel desired by the viewer, and the high frequency receiving unit 1 receives the TV signal and tunes the desired channel accurately by the tuning of the tuning unit 5. A signal is input to the video signal demodulator 2, and the TV signal through the video signal demodulator 2 is separated into an audio signal system and a video signal system, respectively.

여기서 음성신호계는 음성신호 복조부(3)에서 음성신호를 복조한후에 스피커(SP)를 통하여 음성신호가 출력되도록 하고, 영상신호계는 다시 TV모드와 텔레텍스트 모드로 분리된다.Here, the audio signal system outputs the audio signal through the speaker SP after the audio signal demodulator 3 demodulates the audio signal, and the video signal system is separated into the TV mode and the teletext mode.

여기서 TV모드시에는 상기 영상신호 복조부(2)에서 출력된 신호가 색신호복조부(9)를 통하여 R, G, B색신호를 발생하여 신호전환부(10)의 각각 접점(b1), (b2), (b3)을 통하여 CPT(11)의 R, G, B단에 가해져서 원래의 영상신호가 재현된다.In the TV mode, signals output from the video signal demodulator 2 generate R, G, and B color signals through the color signal demodulator 9, respectively, so that the contact points b 1 , ( b 2 ) and (b 3 ) are applied to the R, G, and B stages of the CPT 11 to reproduce the original video signal.

이때에 상기 영상신호 복조부(2)의 출력에 의하여 수평, 수직 드라이브 회로(4)에서 출력된 신호가 전체화면을 조정하게 된다.At this time, the signal output from the horizontal and vertical drive circuits 4 adjusts the entire screen by the output of the image signal demodulator 2.

여기서 만일 TV모드에서 온스크린을 필요로하면, 상기 조정부(6)에서 텔레텍스트 문자발생기(8)에서 온스크린에 필요한 문자를 추출하여 신호전환부(10)의 각각 접점 (a1), (a2), (a3)을 통하여 CPT(11)의 R, G, B단을 거쳐 온스크린 기능을 수행한다.In this case, if the on-screen is required in the TV mode, the teletext character generator 8 extracts the characters necessary for the on-screen from the adjusting unit 6, so that the contact points a 1 and (a) of the signal switching unit 10 are respectively displayed. 2 ), (a 3 ) performs the on-screen function via the R, G, B stage of the CPT (11).

이때 신호전환부(10)의 내부스위치는 상기 텔레텍스트 문자발생기(8)로부터 발생되는 FB(Fast Blaking)신호에 의하여 전환된다. 즉 TV모드시에는 신호전환부(10)의 접점 (b1), (b2), (b3) 전환상태로 스위치가 접속되고, 온스크린기능시에 텔레텍스트 문자발생기(8)의 문자를 필요로할 경우 상기 신호전환부(10)의 접점 (a1), (a2), (a3) 전환상태로 접속하여 온스크린 기능을 수행한다.At this time, the internal switch of the signal switching unit 10 is switched by the fast blaking (FB) signal generated from the teletext character generator (8). That is, in the TV mode, the switch is connected to the contact (b 1 ), (b 2 ), (b 3 ) switching state of the signal switching unit 10, and the characters of the teletext character generator 8 are displayed in the on-screen function. If necessary, the contact switching unit (a 1 ), (a 2 ), (a 3 ) of the signal switching unit 10 is connected to perform the on-screen function.

한편 텔레텍스트 모드시에는 상기 영상신호 복조부(2)에서 출력된 신호가 텔레텍스트 신호처리부(7)를 통하여 문자발생기(8)의 문자를 이용하여 신호전환부(10)의 접점 (a1), (a2), (a3) 통하여 CPT(11)에 가해져 텔레텍스트 방송을 디스플레이하게 된다.On the other hand, in the teletext mode, the signal output from the image signal demodulation unit 2 is a contact point (a 1 ) of the signal switching unit 10 using the character of the character generator 8 through the teletext signal processing unit 7. , (a 2 ) and (a 3 ) are applied to the CPT 11 to display the teletext broadcast.

상기와 같은 동작관계를 제2도에 나타내었다.The operation relationship as described above is shown in FIG.

이상에서와 같이 본 발명에 의하면 별도의 온스크린 기능수행을 위한 IC회로를 부가하지 않고, 온스크린 필요시에 텔레텍스트 수신기의 문자발생기를 이용함으로서 회로구성을 단순화하여 원점절감의 효과를 제공하는 것이다.As described above, according to the present invention, a circuit generator is simplified by using a character generator of a teletext receiver when an on-screen is required, without adding an IC circuit for performing an on-screen function, thereby providing an effect of reducing home position. .

Claims (1)

문자다중방송 수신기능을 가진 TV수상기에 있어서, TV모드시에 색신호 복조부(9)의 R, G, B색신호 출력신호와 텔레텍스트 문자발생기(8)의 R,G,B 색신호 출력신호를 상기 텔레텍스트 문자발생기(8)로 부터 발생하는 FB신호에 의하여 선택전환되는 신호전환부(10)의 전환동작으로 조정부(6)에서 온스크린 기능을 수행하도록 구성된 문자다중 방송수신기를 이용한 온스크린 기능회로.In a TV receiver having a text multi-broadcast reception function, the R, G, B color signal output signal of the color signal demodulator 9 and the R, G, B color signal output signal of the teletext character generator 8 are described in the TV mode. On-screen function circuit using the character multiple broadcast receiver configured to perform the on-screen function in the adjusting unit 6 by the switching operation of the signal switching unit 10 that is selectively switched by the FB signal generated from the teletext character generator 8. .
KR1019870015700A 1987-12-31 1987-12-31 On-screen function circuit using teletext tv KR950001564B1 (en)

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Application Number Priority Date Filing Date Title
KR1019870015700A KR950001564B1 (en) 1987-12-31 1987-12-31 On-screen function circuit using teletext tv

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Application Number Priority Date Filing Date Title
KR1019870015700A KR950001564B1 (en) 1987-12-31 1987-12-31 On-screen function circuit using teletext tv

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KR890011433A KR890011433A (en) 1989-08-14
KR950001564B1 true KR950001564B1 (en) 1995-02-25

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KR1019870015700A KR950001564B1 (en) 1987-12-31 1987-12-31 On-screen function circuit using teletext tv

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