KR970024901A - Synchronous Signal Separation System - Google Patents

Synchronous Signal Separation System Download PDF

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Publication number
KR970024901A
KR970024901A KR1019950038624A KR19950038624A KR970024901A KR 970024901 A KR970024901 A KR 970024901A KR 1019950038624 A KR1019950038624 A KR 1019950038624A KR 19950038624 A KR19950038624 A KR 19950038624A KR 970024901 A KR970024901 A KR 970024901A
Authority
KR
South Korea
Prior art keywords
color
square wave
carrier
unit
signal
Prior art date
Application number
KR1019950038624A
Other languages
Korean (ko)
Other versions
KR0158410B1 (en
Inventor
이철호
Original Assignee
배순훈
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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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950038624A priority Critical patent/KR0158410B1/en
Publication of KR970024901A publication Critical patent/KR970024901A/en
Application granted granted Critical
Publication of KR0158410B1 publication Critical patent/KR0158410B1/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
    • H04N5/08—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
    • H04N9/44—Colour synchronisation
    • H04N9/45—Generation or recovery of colour sub-carriers
    • 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)
  • Processing Of Color Television Signals (AREA)

Abstract

본 발명은 복합영산신호로부터 동기신호를 분리하고, 색부반송파를 복원하여 구형파로 정형화하는 동기신호 분리시스템에 관한 것으로, 본 발명은 분리한 동기신호로 색부반송파를 복원한 후 구형파로 정형화함으로써, 상기 색부반송파의 위상비교가 용이해지고 정확한 비교가 이루어지는 효과가 있다.The present invention relates to a synchronization signal separation system that separates a synchronization signal from a complex domain signal and restores a color carrier to form a square wave. The phase comparison of the color carriers becomes easy and there is an effect of making an accurate comparison.

Description

동기신호 분리시스템Synchronous Signal Separation System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 의한 동기신호 분리시스템의 구성을 보여주는 블록도.1 is a block diagram showing the configuration of a synchronization signal separation system according to the present invention.

Claims (1)

동기신호 분리시스템에 있어서. 외부에서 입력되는 복합영상신호의 왜곡을 막기위하여 입력단에 구비되는 입력버퍼부와, 상기 입력버퍼부로부터 입력되는 복합영상신호에서 색신호를 제거하는 대역소거필터와, 상기 대역소거 필터로부터 입력되는 색신호가 제거된 복합영상신호로부터 동기신호를 분리하여 출력하는 동기신호분리부와, 상기 입력버퍼부로부터 출력되는 복합영상신호와 상기 동기신호분리부로부터 출력되는 버어스트신호를 입력받아 3.58MHz의 색부반송파를 발생하는 제1색부반송파복원부와, 상기 입력버퍼부로부터 출력되는 복합영상신호와 상기 동기신호분리부로부터 출력되는 버어스트신호를 입력받아 4.43MHz의 색부반송파를 발생하는 제2색부반송파복원부와, 상기 제1색부반송파복원부로부터 출력되는 3.58MHz의 색부반송파를 구형파로 정형화하는 제1구형파 발생부와, 상기 제2색부반송파복원부로부터 출력되는 4.43MHz의 색부반송파를 구형파로 정형화하는 구형파발생부와, 상기 제1구형파발생부와 제2구형파발생부로부터 출력되는 정형화된 색부반송파를 선택출력하는 모드선택부를 구비함을 특징으로하는 동기신호 분리시스템.In the synchronization signal separation system. In order to prevent distortion of the composite video signal input from the outside, an input buffer unit provided at the input terminal, a band cancellation filter for removing color signals from the composite video signal input from the input buffer unit, and a color signal input from the band erasing filter A synchronous signal separation unit for separating and outputting a synchronous signal from the removed composite video signal, and receiving a composite video signal output from the input buffer unit and a burst signal output from the synchronous signal separation unit, and receiving a 3.58 MHz color carrier. A second color carrier recovery unit which receives the generated first color carrier recovery unit, a composite image signal outputted from the input buffer unit, and a burst signal outputted from the synchronization signal separation unit, and generates a 4.43 MHz color carrier carrier; And a first square wave generator for shaping a 3.58 MHz color carrier wave output from the first color carrier carrier restorer into a square wave. And a square wave generator for shaping the 4.43 MHz color carriers output from the second color carrier restorer into a square wave, and the shaped color carriers output from the first square wave generator and the second square wave generator. And a mode selection unit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950038624A 1995-10-31 1995-10-31 System for separating sync-signals KR0158410B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038624A KR0158410B1 (en) 1995-10-31 1995-10-31 System for separating sync-signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038624A KR0158410B1 (en) 1995-10-31 1995-10-31 System for separating sync-signals

Publications (2)

Publication Number Publication Date
KR970024901A true KR970024901A (en) 1997-05-30
KR0158410B1 KR0158410B1 (en) 1998-12-15

Family

ID=19432237

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950038624A KR0158410B1 (en) 1995-10-31 1995-10-31 System for separating sync-signals

Country Status (1)

Country Link
KR (1) KR0158410B1 (en)

Also Published As

Publication number Publication date
KR0158410B1 (en) 1998-12-15

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