KR900004183A - On-screen video output mixed circuit - Google Patents

On-screen video output mixed circuit Download PDF

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Publication number
KR900004183A
KR900004183A KR1019880010525A KR880010525A KR900004183A KR 900004183 A KR900004183 A KR 900004183A KR 1019880010525 A KR1019880010525 A KR 1019880010525A KR 880010525 A KR880010525 A KR 880010525A KR 900004183 A KR900004183 A KR 900004183A
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KR
South Korea
Prior art keywords
signal
display position
video
generator
text
Prior art date
Application number
KR1019880010525A
Other languages
Korean (ko)
Inventor
광 연 박
Original Assignee
안시환
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019880010525A priority Critical patent/KR900004183A/en
Publication of KR900004183A publication Critical patent/KR900004183A/en

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Abstract

내용 없음No content

Description

온스크린 영상출력혼합 회로On Screen Video Output Mixing Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 바람직한 일실시예의 회로 블럭도이다.1 is a circuit block diagram of a preferred embodiment of the present invention.

Claims (2)

문자발생부(1)로부터 발생되는 문자신호가 공급되는 혼합기(2)에 블루백신호 발생기(3)에서 출력되는 블루백신호와 수신 또는 재생되는 영상신호가 스위치수단(4)을 통하여 선택적으로 공급되도록 연결하고, 상기 영상신호의 입력이 없을 때에는 상기 블루백 신호가, 영상신호의 입력이 있을 때에는 영상신호가 선택되도록 상기 스위치수단(4)에 영상신호 유·무를 검출하는 영상신호 검출기(5)를 연결하여서 된 것을 특징으로 하는 온스크린 영상출력 혼합회로.A blue back signal output from the blue back signal generator 3 and a video signal received or reproduced are selectively supplied to the mixer 2 to which the text signal generated from the text generator 1 is supplied through the switch means 4. And a video signal detector 5 for detecting the presence or absence of a video signal to the switch means 4 so that the blue back signal is selected when there is no input of the video signal, and the video signal is selected when there is an input of the video signal. On-screen video output mixing circuit, characterized in that by doing. 제1항에 있어서, 상기 문자발생부(1)는 상기 혼합기(2)에서 출력되는 혼합신호로부터 동기신호를 분리하는 동기분리기(11)와, 상기 동기분리기(11)에서 출력되는 수평동기신호와 마이콤(7)에서 공급되는 데이터를 공급받아 상기 문자신호의 수평표시위치를 지정하는 수평표시위치 카운터(14)와 상기 기 동기분리기(11)에서 출력되는 수직동기신호와 마이콤(7)에서 공급되는 데이터를 공급받아 상기 문자신호의 수직표시위치를 지정하는 수직표시위치 카운터(15)와, 상기 수평표시위치 카운터(14) 및 수직표시위치 카운터(15)에 의해 지정된 번지내의 문자신호를 출력하는 문자발생기(16)를 구비하여서 된 것을 특징으로 하는 온스크린 영상출력 혼합 회로.The method of claim 1, wherein the character generator 1 comprises a synchronous separator 11 for separating the synchronous signal from the mixed signal output from the mixer 2, and a horizontal synchronous signal output from the synchronous separator 11; A horizontal display position counter 14 that receives data supplied from a microcomputer 7 and specifies a horizontal display position of the character signal, and a vertical synchronization signal output from the synchronization separator 11 and a microsynchronous signal 7 supplied from the microcomputer 7. A character which outputs a text signal in a address designated by a vertical display position counter 15 which receives data and designates a vertical display position of the text signal, and the horizontal display position counter 14 and a vertical display position counter 15; On-screen video output mixing circuit, characterized in that it comprises a generator (16). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880010525A 1988-08-19 1988-08-19 On-screen video output mixed circuit KR900004183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880010525A KR900004183A (en) 1988-08-19 1988-08-19 On-screen video output mixed circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880010525A KR900004183A (en) 1988-08-19 1988-08-19 On-screen video output mixed circuit

Publications (1)

Publication Number Publication Date
KR900004183A true KR900004183A (en) 1990-03-27

Family

ID=68137383

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880010525A KR900004183A (en) 1988-08-19 1988-08-19 On-screen video output mixed circuit

Country Status (1)

Country Link
KR (1) KR900004183A (en)

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