KR970068586A - A television having a brightness level interlocking function of a caption signal - Google Patents

A television having a brightness level interlocking function of a caption signal Download PDF

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Publication number
KR970068586A
KR970068586A KR1019960007748A KR19960007748A KR970068586A KR 970068586 A KR970068586 A KR 970068586A KR 1019960007748 A KR1019960007748 A KR 1019960007748A KR 19960007748 A KR19960007748 A KR 19960007748A KR 970068586 A KR970068586 A KR 970068586A
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KR
South Korea
Prior art keywords
signal
image
caption
unit
television
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KR1019960007748A
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Korean (ko)
Inventor
박상열
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960007748A priority Critical patent/KR970068586A/en
Publication of KR970068586A publication Critical patent/KR970068586A/en

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Abstract

본 발명은 문자다중방송기능을 구비한 텔레비젼에 있어서 문자다중신호의 휘도조절이 가능한 텔레비젼에 과한 것으로, 보다 상세하게는 텔레비젼 화면의 한개 영상프레임내에 포함된 캡션화면의 휘도를 주화면의 휘도레벨조정시에 이와 연동하여 조정할 수 있는 텔레비젼에 관한 것이다.The present invention relates to a television capable of adjusting the luminance of a text signal in a television having a teletext function, and more particularly to a television set capable of adjusting the luminance level of a caption screen included in an image frame of a television screen, And to a television that can be coordinated with the city.

본 발명은 종래의 문자다중방송기능이 제공된 텔레비젼시청시 정규프로그램의 주화면과 문자정보를 담은 캡션화면이 유사한 휘도레벨을 가져서 중요정보를 담은 캡션화면의 시청에 장애를 가져오는 단점을 제거하고 사용자가 주화면의 휘도레벨을 조정하는 조작을 통하여 캡션화면의 휘도레벨이 연동되어 조정될 수 있도록 구성함으로써 가장 편안한 텔레비젼시청 환경을 제공함과 더불어 문자다중정보의 효용을 확대시킬 수 있는 장점을 갖는다.The present invention eliminates a disadvantage that a main screen of a regular program and a caption screen containing character information have a similar luminance level at the time of watching a television provided with a conventional teletext function and obstruct viewing of a caption screen containing important information, The brightness level of the caption screen can be adjusted by interlocking with the operation of adjusting the brightness level of the main screen, thereby providing the most comfortable viewing environment for the television and extending the utility of the teletype information.

Description

캡션신호의 휘도레벨 연동조정기능을 구비한 텔레비젼A television having a brightness level interlocking function of a caption signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제 2 도는 본 발명에 따른 문자다중방송을 구현한 개략적인 하드웨어 구성 블럭도.FIG. 2 is a schematic block diagram of a hardware configuration implementing teletext according to the present invention; FIG.

Claims (1)

정규프로그램의 RF방송신호와 문자정보신호로 구성된 복합영상신호를 선국하여 중간주파수형태로 변환시키는 튜너부(10)와, 선국된 영상신호를 분리검파하고 영상중간주파증폭하는 영상 IF부(20)와, 상기 영상중간주파신호로부터 반송색신호와 휘도신호를 각기 분리해 내기 위한 영상검파부(30)와, 상기 영상검파부(30)를 거쳐 검파된 영상신호로부터 수평동기신호 및 수직동기신호를 분리해내기 위한 동기분리부(40)와, 복합영상신호에서 문자정보신호를 추출해내기 위한 캡션정보신호추출부(51) 및 사용자가 선택한 문자정보 일부분을 아날로그 R, G, B신호로 변환출력시키기 위한 캡션화면 디스플레이부(52)를 포함하는 캡션디코더(50)와, 텔레비젼의 제반기능 및 캡션기능제어를 담당하는 제어부(60)와, 문자다중방송으로 제공되는 정보가운데 사용자가 선택한 이후에 영상 디스플레이될 정보페이지를 저장하는 메모리장치(70)와, 상기 영상검파부(30)를 통하여 검파된 영상신호를 증폭 및 처리하는 영상증폭 및 처리부(80)와, 상기 영상증폭 및 처리부(80)로부터 제공되는 R, G, B영상신호 및 상기 캡션화면 디스플레이부(52)로부터 제공되는 R, G, B아날로그신호를 영상재생가능하게 출력시키는 영상출력구동부(90)와, 영상출력을 담당하는 수상기(100)를 포함하는 텔레비젼에 있어서, 상기 제어부(60)가 상기 영상 증폭 및 처리부(80)에 휘도레벨조정신호를 포함한 제어신호를 인가하고 이러한 제어신호에 응답하여 상기 영상 증폭 및 처리부(80)가 조정된 영상출력신호를 상기 영상출력구동부(90)로 제공하는 것과 동시에 상기제어부(60)가 상기 캡션디코더(50)내 캡션화면디스플레이부(52)에 상기 영상증폭 및 처리부(80)에 인가된 휘도레벨조정신호와 비례 또는 반비례적으로 연관된 휘도레벨조정신호를 인가함으로써 캡션화면 디스플레이부(52)가 이러한 인가신호에 응답하여 휘도레벨조정된 R, G, B아날로그출력신호를 영상출력신호로서 제공하는 것을 특징으로 하는 캡션신호의 휘도레벨 연동조정기능을 구비한 텔레비젼.A tuner unit 10 for tuning a composite video signal composed of an RF broadcast signal and a character information signal of a regular program and converting the mixed video signal into an intermediate frequency form, an image IF unit 20 for separating and detecting the selected video signal, An image detector 30 for separating the transmission color signal and the luminance signal from the image intermediate frequency signal, a phase detector 30 for separating the horizontal synchronizing signal and the vertical synchronizing signal from the image signal detected through the image detector 30, A caption information signal extracting unit 51 for extracting a character information signal from the composite video signal, and a caption information extracting unit 51 for extracting a character information part selected by the user into analog R, G, B signals A caption decoder 50 including a caption screen display unit 52, a control unit 60 for controlling various functions of the television and caption function control, An image amplification and processing unit 80 for amplifying and processing the image signal detected through the image detection unit 30, and an image amplification and processing unit 80 for amplifying and processing the image signal detected through the image detection unit 30, A video output driver 90 for outputting the R, G, and B video signals provided from the caption screen display unit 80 and the R, G, and B analog signals provided from the caption screen display unit 52 so that the video signals can be reproduced, The control unit 60 applies a control signal including a brightness level adjustment signal to the image amplification and processing unit 80 and controls the image amplification and processing unit 80 in response to the control signal, The controller 80 provides the adjusted video output signal to the video output driver 90 and the controller 60 controls the video amplification and processing unit 80 to the caption screen display unit 52 of the caption decoder 50. [ , The caption screen display unit 52 displays the R, G, and B analog output signals adjusted in brightness level in response to the application signal by applying a brightness level adjustment signal proportional to or inversely related to the brightness level adjustment signal applied to the image And outputting the caption signal as an output signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960007748A 1996-03-21 1996-03-21 A television having a brightness level interlocking function of a caption signal KR970068586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960007748A KR970068586A (en) 1996-03-21 1996-03-21 A television having a brightness level interlocking function of a caption signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960007748A KR970068586A (en) 1996-03-21 1996-03-21 A television having a brightness level interlocking function of a caption signal

Publications (1)

Publication Number Publication Date
KR970068586A true KR970068586A (en) 1997-10-13

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KR1019960007748A KR970068586A (en) 1996-03-21 1996-03-21 A television having a brightness level interlocking function of a caption signal

Country Status (1)

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KR (1) KR970068586A (en)

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