KR910011064A - TV's Vertical Compensation Color Detector - Google Patents

TV's Vertical Compensation Color Detector Download PDF

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Publication number
KR910011064A
KR910011064A KR1019890016622A KR890016622A KR910011064A KR 910011064 A KR910011064 A KR 910011064A KR 1019890016622 A KR1019890016622 A KR 1019890016622A KR 890016622 A KR890016622 A KR 890016622A KR 910011064 A KR910011064 A KR 910011064A
Authority
KR
South Korea
Prior art keywords
signal
luminance signal
line
mhz
color change
Prior art date
Application number
KR1019890016622A
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Korean (ko)
Other versions
KR920005203B1 (en
Inventor
김기현
Original Assignee
이헌조
주식회사 금성사
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Priority to KR1019890016622A priority Critical patent/KR920005203B1/en
Publication of KR910011064A publication Critical patent/KR910011064A/en
Application granted granted Critical
Publication of KR920005203B1 publication Critical patent/KR920005203B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/77Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

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

Abstract

내용 없음.No content.

Description

텔레비젼의 수직보색변화검출기TV's Vertical Compensation Color Detector

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

제2도는 본 발명 수직보색변화검출기의 회로구성도.2 is a circuit diagram of a vertical complementary color change detector according to the present invention.

제3도는 본 발명 휘도신호에서 색표현정보의 제거 및 색도 신호의 복귀를 나타낸 회로구성도.3 is a circuit diagram showing the removal of the color expression information and the return of the chroma signal from the luminance signal of the present invention.

Claims (2)

라인분리필터로 휘도신호와 색도신호를 분리하여 보색변화를 검출하는 보색변화검출기에 있어서, 라인분리필터를 통해 라인분리된 휘도신호(Y)에서 색부반송파신호 3.58MHz를 검출하는 밴드패스필터(1)는 절대값계산기(2a)와 임계값발생기(2c) 및 비교기(2b)로 구성되어 휘도신호(Y)내의 3.58MHz의 부반송파성분의 유, 무를 판단하는 휘도신호판단기(2)에 연결함과 아울러 감산기(3e)에 연결하고, 분리된 색도신호(C)는 절대값계산기(4a)(4a')와 비교기(4b)(4b') 및 임계값발생기(4c)(4c')로 구성되어 현라인의 색도신호와 이전 라인의 색도신호의 유, 무를 판단하는 색도신호판단기(4)에 연결함과 아울러 색도신호(C)를 한라인주사기간만큼 지연시키는 라인지연기(3d)와 감산기(3e), 절대값계산기(3a), 비교기(3b) 및 임계값발생기(3c)로 구성되어 휘도신호(Y)의 3.58MHz 성분과 색도신호(C)의 위상차를 검출하는 위상관계판단기(3)에 연결하여 엔드게이트(5)에서 제어신호(CS)를 얻는 것을 특징으로 한 텔레비젼의 수직보색변화검출기.In the complementary color change detector for detecting a complementary color change by separating a luminance signal and a chromaticity signal with a line separation filter, a band pass filter for detecting a color carrier signal 3.58 MHz from the luminance signal Y separated by a line separation filter (1). ) Is composed of an absolute value calculator 2a, a threshold generator 2c, and a comparator 2b, and is connected to a luminance signal determiner 2 that determines the presence or absence of a subcarrier component of 3.58 MHz in the luminance signal Y. In addition, the chromaticity signal C, which is connected to the subtractor 3e, is composed of an absolute value calculator 4a, 4a ', a comparator 4b, 4b' and a threshold generator 4c, 4c '. And a line delay unit 3d for connecting the chroma signal of the current line and the chroma signal of the previous line to and from the chroma signal determiner 4 to delay the chroma signal C by one line scanning period. It consists of a subtractor 3e, an absolute value calculator 3a, a comparator 3b, and a threshold generator 3c, and the 3.58 MHz component of the luminance signal Y; Dosin arc (C) phase relation determining unit (3) connected to the end gate (5) A television vertical complementary color change of the detector characterized by obtaining a control signal (CS) in a to detect a phase difference. 특허청구범위 제1항에 있어서, 상기 밴드패스필터(1)는 라인지연기(6a)(6b)와 계수기(1a)(1b)(1c) 및 감산기(1d)로 구성되어 라인분리된 휘도신호(Y)내의 3.58MHz의 고역성분을 검출하여 색도신호(C)와 가산기(9)에서 더한 신호를 선택기(8)에 인가시킴과 아울러 계수기(6c)(6d)(6e)와 라인지연기(6a)(6b) 및 가산기(6f)로 구성되는 로우패스필터(6)와 공유결합시켜 휘도신호(Y)내의 3.58MHz 고역성분을 제거한 휘도신호(Y)를 선택기(7)에 인가시켜 제어신호(CS)에 따라 수정된 휘도신호(Y')와 색도신호(C')를 출력시키는 것을 특징으로 한 텔레비젼의 수직보색변화검출기.2. The luminance signal of claim 1, wherein the band pass filter 1 comprises a line delay unit 6a, 6b, a counter 1a, 1b, 1c, and a subtractor 1d. The high frequency component at (Y) is detected and the chroma signal C and the adder 9 are added to the selector 8, and the counters 6c, 6d, 6e and line delay ( The control signal is applied to the selector 7 by applying a luminance signal Y, which is covalently coupled with the low pass filter 6 composed of 6a) and 6b and an adder 6f, to which the 3.58 MHz high-band component in the luminance signal Y is removed. A vertical complementary color change detector of a television, characterized by outputting a luminance signal Y 'and a chromaticity signal C' modified according to CS. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890016622A 1989-11-16 1989-11-16 Television circuit KR920005203B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890016622A KR920005203B1 (en) 1989-11-16 1989-11-16 Television circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890016622A KR920005203B1 (en) 1989-11-16 1989-11-16 Television circuit

Publications (2)

Publication Number Publication Date
KR910011064A true KR910011064A (en) 1991-06-29
KR920005203B1 KR920005203B1 (en) 1992-06-29

Family

ID=19291704

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890016622A KR920005203B1 (en) 1989-11-16 1989-11-16 Television circuit

Country Status (1)

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KR (1) KR920005203B1 (en)

Also Published As

Publication number Publication date
KR920005203B1 (en) 1992-06-29

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