KR930011647A - Multi-mode Synchronous Polarity Automatic Identification Circuit - Google Patents

Multi-mode Synchronous Polarity Automatic Identification Circuit Download PDF

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Publication number
KR930011647A
KR930011647A KR1019910019765A KR910019765A KR930011647A KR 930011647 A KR930011647 A KR 930011647A KR 1019910019765 A KR1019910019765 A KR 1019910019765A KR 910019765 A KR910019765 A KR 910019765A KR 930011647 A KR930011647 A KR 930011647A
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KR
South Korea
Prior art keywords
output
synchronization
synchronous
flip
polarity
Prior art date
Application number
KR1019910019765A
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Korean (ko)
Inventor
신욱희
Original Assignee
정용문
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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910019765A priority Critical patent/KR930011647A/en
Publication of KR930011647A publication Critical patent/KR930011647A/en

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  • Processing Of Color Television Signals (AREA)
  • Synchronizing For Television (AREA)
  • Television Systems (AREA)

Abstract

이 발명은 멀티모드의 동기를 가지는 TV, 모니터등에서 항상 일정한 극성의 동기를 얻기 위한 것으로서, 동기 입력의 극성을 판별하여 2개의 플립플롭이 교대로 성극성의 출력을 발생하고, 이 정극성의 동기만을 출력하도록하여 모드변환에 무관하게 항상 일정한 극성의 동기를 출력하도록 하였다.The present invention is to obtain a synchronization of a certain polarity at all times in a TV, a monitor, etc. having a multi-mode synchronization, the polarity of the synchronization input is determined, the two flip-flops alternately generates a polarity output, and outputs only this polarity synchronization So, regardless of the mode conversion, it always outputs the synchronization of constant polarity.

Description

멀티모드의 동기극성 자동판별회로Multi-mode Synchronous Polarity Automatic Identification Circuit

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

제1도는 이 발명에 따른 동기극성 자동판별회로도이다.1 is a synchronous polarity automatic discrimination circuit diagram according to the present invention.

Claims (3)

하나의 정 또는 부극성의 동기에 대해 그 극성을 판별하여 정, 부극성의 동기신호를 출력하는 동기판별부(10)와, 이 동기 판별부(10)의 출력을 제공받아 항상 일정한 극성의 동기를 출력하는 동기출력부(20)와, 로 된 멀티모드의 동기극성 자동판별회로.A synchronization discrimination unit 10 for discriminating the polarity of one positive or negative synchronization and outputting a positive and negative synchronization signal, and a synchronization of a constant polarity at all times by receiving the output of the synchronization determination unit 10. A synchronous polarity automatic discrimination circuit of a multi-mode synchronous output unit 20 for outputting a 로. 제1항에 있어서, 동기 판별부(10)는, 각기 다른 극성의 출력을 발생하는 2단의 플립플롭(FF1), (FF2)과, 동기입력에 대해 반전 출력하는 낸드게이트(61)와, 이 낸드게이트(G1)의 출력과 상기 플립플롭(FF2)의 부출력단(Q)의 출력을 논리화하여 상기 플립플롭(FF1)의 입력을 제공하는 앤드게이트(G2)와, 동기입력과 상기 플립플롭(FF1)의 부출력단(Q)의 출력을 논리화하여 상기 플립플롭(FF2)의 입력을 제공하는 앤드게이트(G3)와, 로 된 멀티모드의 동기극성 자동판별회로.2. The synchronization determining unit 10 further comprises two flip-flops FF1 and FF2 for generating outputs of different polarities, a NAND gate 61 for inverting and outputting the synchronous inputs, An AND gate G2 for providing an input of the flip-flop FF1 by logically outputting the output of the NAND gate G1 and the output of the sub-output terminal Q of the flip-flop FF2, a synchronous input and the flip And an AND gate (G3) for providing an input of the flip-flop (FF2) by logically outputting the output of the sub-output terminal (Q) of the flop (FF1). 제1항에 있어서, 상기 동기출력부(20)는, 동기 판별부(10)의 출력을 콘덴서(C1), (C2)를 통해 입력받아 반전 증폭시키는 트랜지스터(Ql)와, 이 트랜지스터(Ql)의 출력을 반전출력하는 트랜지스터(Q2)와, 로 된 멀티모드의 동기극성 자동판별회로.The transistor Ql of claim 1, wherein the synchronous output unit 20 receives the output of the synchronous discrimination unit 10 through the capacitors C1 and C2 and inverts and amplifies the transistor Ql. A multi-mode synchronous polarity automatic discrimination circuit comprising a transistor (Q2) for inverting the output of the signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910019765A 1991-11-07 1991-11-07 Multi-mode Synchronous Polarity Automatic Identification Circuit KR930011647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910019765A KR930011647A (en) 1991-11-07 1991-11-07 Multi-mode Synchronous Polarity Automatic Identification Circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910019765A KR930011647A (en) 1991-11-07 1991-11-07 Multi-mode Synchronous Polarity Automatic Identification Circuit

Publications (1)

Publication Number Publication Date
KR930011647A true KR930011647A (en) 1993-06-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910019765A KR930011647A (en) 1991-11-07 1991-11-07 Multi-mode Synchronous Polarity Automatic Identification Circuit

Country Status (1)

Country Link
KR (1) KR930011647A (en)

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