KR850006815A - Vertical Contour Compensator - Google Patents

Vertical Contour Compensator Download PDF

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Publication number
KR850006815A
KR850006815A KR1019840007566A KR840007566A KR850006815A KR 850006815 A KR850006815 A KR 850006815A KR 1019840007566 A KR1019840007566 A KR 1019840007566A KR 840007566 A KR840007566 A KR 840007566A KR 850006815 A KR850006815 A KR 850006815A
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KR
South Korea
Prior art keywords
signal
output
delay
synthesizing
additive mixing
Prior art date
Application number
KR1019840007566A
Other languages
Korean (ko)
Other versions
KR900005187B1 (en
Inventor
도시미쯔 우메자와
Original Assignee
사바 쇼오이찌
가부시끼가이샤 도오시바
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 사바 쇼오이찌, 가부시끼가이샤 도오시바 filed Critical 사바 쇼오이찌
Publication of KR850006815A publication Critical patent/KR850006815A/en
Application granted granted Critical
Publication of KR900005187B1 publication Critical patent/KR900005187B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

내용 없음No content

Description

수직윤곽 보정장치Vertical Contour Compensator

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

제7도는 본 발명의 수직윤곽 보정장치의 일실시예를 나타낸 회로도.7 is a circuit diagram showing an embodiment of the vertical contour correction apparatus of the present invention.

제8도는 NTSC 방식에 있어서, 복합영상신호의 주파수 스펙트럼 및 본 발명에서 사용하는 저역여파기의 특성도.8 is a characteristic spectrum of the low frequency filter used in the present invention and the frequency spectrum of the composite video signal in the NTSC system.

제9도는 제7도의 회로동작 설명도 및 각부 신호파형도.9 is an explanatory diagram of the circuit operation and a signal waveform diagram of each part;

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 음극선관 표시화상 11 : 영상신호의 입력단자10: cathode ray tube display image 11: input terminal of video signal

12,13 : 1H지연회로(딜레이라인)12,13: 1H delay circuit (delay line)

14,16 : 반전증폭기 15 : 증폭기14,16: inverting amplifier 15: amplifier

17 : 가산회로 18 : 신호출력단자17: addition circuit 18: signal output terminal

21 : 신호입력단자 22 : 딜레이라인21: signal input terminal 22: delay line

23 : 가산회로 24 : 감산회로23: addition circuit 24: subtraction circuit

25 : 휘도신호 출력단자 26 : 반송색신호 출력단자25: luminance signal output terminal 26: carrier color signal output terminal

32,36,39,40 : 가산회로 33 : 딜레이라인32,36,39,40: Addition circuit 33: Delay line

34 : 저역여파기 35 : 지연소자34: low pass filter 35: delay element

37 : 감산회로 38,45 : 반전증폭기37: subtraction circuit 38,45: inverting amplifier

41 : 인버터 42, 46 : 증폭기41: inverter 42, 46: amplifier

Claims (1)

칼라텔레비젼 신호원, 상기 영상신호원으로 부터 공급되어지는 영상신호인 제1신호와 제2신호를 합성시키는 제1합성수단, 상기 제1합성수단의 출력단에 순차적으로 제1. 제2지연수단을 직렬접속하고 상기 제2지연수단의 출력단에 상기 제1합성수단의 출력단에서의 신호를 1수평주사기간 지연하도록 한 신호를 얻기 위한 지연장치, 상기 지연장치에 의해 지연된 신호와 상기 제1신호를 감산적 및 가산적으로 각각 혼합하는 감산적 혼합수단 및 가산적 혼합수단, 상기지연 장치의 제1지연수단의 출력단에 접속되어 상기 제2지연수단과 같은 신호 지연시간을 갖고 저역휘도 신호성분을 분리하여 송출하기 위한 저역여파기, 상기 가산적 혼합수단의 출력과 상기 저역여파기의 출력을 소정의 비율을 갖고 상대적으로 역극성의 신호로서 합성하는 제2합성수단, 상기 제2합성수단의 출력을 상기 가산적 혼합수단의 출력으로 소정의 비율과 극성을 갖는 윤곽보정용 신호로서 합성하고, 그 합성출력으로서 프리슈트와 오버슈트가 붙은 휘도신호를 얻기 위한 제3합성수단, 상기 제2합성수단의 출력을 상기 윤곽보정용 신호와 역극성을 갖고 상기 제1합성수단에 제2신호로서 공급하는 궤환회로를 구비하여서 구성되어진 수직윤곽 보정장치.A color television signal source, first synthesizing means for synthesizing a first signal and a second signal, which are video signals supplied from said video signal source, and sequentially at an output terminal of said first synthesizing means; A delay device for obtaining a signal connected in series with a second delay means and delaying a signal at an output end of said first synthesizing means to an output end of said second delay means for one horizontal scanning period, a signal delayed by said delay device and said A subtractive mixing means for adding the first signal subtractively and additively, and an additive mixing means, and an output terminal of the first delay means of the delay apparatus, having the same signal delay time as the second delay means, and having a low reverse luminance. A low pass filter for separating and transmitting signal components, a second synthesis means for synthesizing the output of the additive mixing means and the output of the low pass filter as a relatively reverse polarity signal with a predetermined ratio, and the second synthesis means. The output is synthesized as a contour correction signal having a predetermined ratio and polarity as the output of the additive mixing means, and a preshoot and an overshoot are added as the combined output. Is composed of a third synthesizing means for obtaining a luminance signal, and a feedback circuit for supplying the output of the second synthesizing means to the first synthesizing means with a reverse polarity to the contour compensating signal; Device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840007566A 1984-03-30 1984-11-30 Vertical contour correction device KR900005187B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP59-60819 1984-03-30
JP84-60819 1984-03-30
JP59060819A JPS60206290A (en) 1984-03-30 1984-03-30 Correcting device of profile in vertical direction

Publications (2)

Publication Number Publication Date
KR850006815A true KR850006815A (en) 1985-10-16
KR900005187B1 KR900005187B1 (en) 1990-07-20

Family

ID=13153336

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840007566A KR900005187B1 (en) 1984-03-30 1984-11-30 Vertical contour correction device

Country Status (2)

Country Link
JP (1) JPS60206290A (en)
KR (1) KR900005187B1 (en)

Also Published As

Publication number Publication date
KR900005187B1 (en) 1990-07-20
JPS60206290A (en) 1985-10-17

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