KR940025285A - Synchronous signal extension circuit of monitor - Google Patents

Synchronous signal extension circuit of monitor Download PDF

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Publication number
KR940025285A
KR940025285A KR1019930006716A KR930006716A KR940025285A KR 940025285 A KR940025285 A KR 940025285A KR 1019930006716 A KR1019930006716 A KR 1019930006716A KR 930006716 A KR930006716 A KR 930006716A KR 940025285 A KR940025285 A KR 940025285A
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KR
South Korea
Prior art keywords
signal
input
vertical
unit
synchronization signal
Prior art date
Application number
KR1019930006716A
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Korean (ko)
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KR960008054B1 (en
Inventor
박해룡
Original Assignee
배순호
대우전자 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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Application filed by 배순호, 대우전자 주식회사 filed Critical 배순호
Priority to KR1019930006716A priority Critical patent/KR960008054B1/en
Publication of KR940025285A publication Critical patent/KR940025285A/en
Application granted granted Critical
Publication of KR960008054B1 publication Critical patent/KR960008054B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/05—Synchronising circuits with arrangements for extending range of synchronisation, e.g. by using switching between several time constants
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/70—Circuits for processing colour signals for colour killing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)
  • Picture Signal Circuits (AREA)

Abstract

본 발명은 텔레비젼의 복합비디오 신호에 관한 것으로, 특히 수직, 수평 동기분리용 신호의 입력이 왜곡되거나 입력레벨이 낮을 경우에 텔레비젼의 화면이 떨거나 찌그러짐이 발생하는 오류를 개선코져 하는 것으로, 입력되는 복합영상신호를 위상반전시키고 동기 DC 성분만을 제거하는 입력부, 수직동기 신호의 입력시 일정한 전위레벨을 유지할 수 있게한 전위레벨제어부, 입력되는 신호의 크기에 따라 온/오프 스위칭하는 버퍼부, 수직동기 신호 부분만을 적분출력하는 적분필터부, 수직동기 신호를 증폭 정형하는 동기신호 신장부, 출력버퍼부, 칼라성분만을 제거하며 상기 비디오 크로마 IC의 동기분리 입력단(output)에 연결하는 필터부로 구성된 텔레비젼의 동기신호 신장회로를 제공하여 수직동기 신호의 크기가 적음, 또는 왜곡으로 인하여 발생하는 수직동기 신호의 부분만을 레벨다운(Level Down)시켜 수직떨림등과 같은 문제점을 해소할 수 있게 한 텔레비젼의 동기신호 신장회로를 제공하고자 하는 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite video signal of a television, and more particularly, to correct an error in which a TV screen is shaken or distorted when an input of a vertical or horizontal synchronization separation signal is distorted or an input level is low. Phase inverting the composite video signal and removing only the synchronous DC component, Potential level control unit for maintaining a constant potential level when inputting the vertical synchronization signal, Buffer unit for switching on / off according to the size of the input signal, Vertical synchronization An integrated filter unit for integrating and outputting only the signal portion, a synchronization signal extension unit for amplifying and shaping the vertical synchronization signal, an output buffer unit, and a filter unit for removing only color components and connecting to the synchronously separated input of the video chroma IC, Providing sync signal extension circuit, it is caused by small size of vertical sync signal or distortion It is intended to provide a synchronization signal expansion circuit of a television able to down (Down Level) level, only the portion of the vertical synchronizing signal can be solved problems such as such as the vertical vibrations.

Description

모니터의 동기신호 신장회로Synchronous signal extension circuit of monitor

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

제 1 도는 본 발명의 회로도, 제 2 도는 본 발명이 적용되는 수직동기기간이 포함된 복합 비디오 신호를 보인 타이밍도.1 is a circuit diagram of the present invention, and FIG. 2 is a timing diagram showing a composite video signal including a vertical synchronization period to which the present invention is applied.

Claims (1)

텔레비젼의 비디오 크로마 IC의 동기분리 입력단(output)에 연결되어 동기신호를 정형하는 것에 있어서, 입력되는 복합영상 신호를 위상반전시키고, 동기 DC 성분만을 제거하는 입력부(10), 수직동기 신호의 입력시 일정한 전위레벨을 유지할 수 있게한 전위레벨제어부(20), 입력되는 신호의 크기에 따라 온/오프 스위칭하는 버퍼부(11), 수직동기 신호 부분만을 적분출력하는 적분필터부(30), 수직동기 신호를 증폭 정형하는 동기신호 신장부(40), 출력버퍼부(50), 칼라성분만을 제거하며 상기 비디오 크로마 IC의 동기분리 입력단(output)에 연결하는 필터부(60)로 이루어진 것을 특징으로 하는 모니터의 동기신호 신장회로.An input unit 10 for phase-inverting an input composite video signal and removing only a synchronous DC component in connecting a synchronously separated input of a video chroma IC of a television to form a synchronous signal; A potential level control unit 20 capable of maintaining a constant potential level, a buffer unit 11 for switching on / off according to the magnitude of the input signal, an integral filter unit 30 for integrally outputting only the vertical synchronization signal portion, and a vertical synchronization unit A synchronization signal extending section 40, an output buffer section 50 for amplifying and shaping the signal, and a filter section 60 for removing only color components and connecting to the synchronously separated input of the video chroma IC Synchronization signal extension circuit of monitor. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019930006716A 1993-04-21 1993-04-21 Synchronization signal expansion circuit for monitor KR960008054B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930006716A KR960008054B1 (en) 1993-04-21 1993-04-21 Synchronization signal expansion circuit for monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930006716A KR960008054B1 (en) 1993-04-21 1993-04-21 Synchronization signal expansion circuit for monitor

Publications (2)

Publication Number Publication Date
KR940025285A true KR940025285A (en) 1994-11-19
KR960008054B1 KR960008054B1 (en) 1996-06-19

Family

ID=19354268

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930006716A KR960008054B1 (en) 1993-04-21 1993-04-21 Synchronization signal expansion circuit for monitor

Country Status (1)

Country Link
KR (1) KR960008054B1 (en)

Also Published As

Publication number Publication date
KR960008054B1 (en) 1996-06-19

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