KR910013942A - Chromatic Signal Motion Detection Circuit of Composite Video Signal - Google Patents

Chromatic Signal Motion Detection Circuit of Composite Video Signal Download PDF

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Publication number
KR910013942A
KR910013942A KR1019890018202A KR890018202A KR910013942A KR 910013942 A KR910013942 A KR 910013942A KR 1019890018202 A KR1019890018202 A KR 1019890018202A KR 890018202 A KR890018202 A KR 890018202A KR 910013942 A KR910013942 A KR 910013942A
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KR
South Korea
Prior art keywords
signal
output
latch circuit
comparator
composite video
Prior art date
Application number
KR1019890018202A
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Korean (ko)
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KR930000981B1 (en
Inventor
이호웅
Original Assignee
이헌조
주식회사 금성사
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Priority to KR1019890018202A priority Critical patent/KR930000981B1/en
Publication of KR910013942A publication Critical patent/KR910013942A/en
Application granted granted Critical
Publication of KR930000981B1 publication Critical patent/KR930000981B1/en

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits 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

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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

복합영상신호의 색도신호 움직임 검출회로Chromatic Signal Motion Detection Circuit of Composite Video Signal

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

제2도는 본 발명 복합영상신호의 색도신호 움직임 검출 회로도,2 is a chromaticity signal motion detection circuit diagram of a composite video signal of the present invention;

제3도의 (가)는 제2도의 절대값 계산기(7)의 특성 곡선도,(A) of FIG. 3 is a characteristic curve diagram of the absolute value calculator 7 of FIG.

(나)는 제2도의 절대값 계산기(7a)의 특성 곡선도,(B) is a characteristic curve diagram of the absolute value calculator 7a of FIG.

(다)는 제2도의 절대값 계산기(9)의 특성 곡선도.(C) is a characteristic curve diagram of the absolute value calculator 9 of FIG.

Claims (1)

복합영상신호에 있어서, 현신호와, 한라인 지연기(1) 및 524 라인지연기(2)를 통해 프레임 지연된 신호를 입력으로하여 색부반송파 신호의 전, 후로 필터링시키기 위한 대역통과필터(5)(5a)(6)(6a)는 이의 출력값을 절대치로 계산하여 감산시키는 절대값 비교기(7)(7a)를 통해 가산기(8)에 연결하고, 그 가산기(8)의 출력은 이의 출력값을 제한시키는 절대값 계산기(9)와, 미리 결정되어진 임계값과 비교하는 임계값 비교기(10)를 통해 피크검파부(11)의 래체회로(15)와 한샘플 지연된 신호(Xn-1)를 출력하는 래치회로(12)에 연결하여 그 출력을 래치회로(16)와 비교기(14)의 입력단자(P2)에 연결함과 아울러 두샘플 지연된 신호(Xn-2)를 출력하는 래치회로(13)를 통해 비교기(14)의 입력단자(P1)에 연결한 후 그 출력단자(Q)를 래치회로(16)의 출력 제어단자 (OC)에 연결함과 아울러 인버터 게이트(17)를 통해 래치회로(15)의 출력제어단자(OC)에 연결하고, 상기 래치회로(15)(16)의 출력은 비교기(14)의 출력신호에 따라 현신호와 한샘플 지연된 신호(Xn-1)를 래치회로 (18)를 통해 출력시키는 것을 특징으로한 복합영상신호의 색도신호 움직임 검출회로.In the composite video signal, a band pass filter (5) for filtering before and after the color carrier signal by inputting the current signal and the frame delayed signal through the one line delay unit (1) and the 524 line delay unit (2). (5a) (6) (6a) is connected to the adder 8 via an absolute value comparator (7) (7a) which calculates and subtracts its output value to an absolute value, the output of which adder (8) limits its output value. And outputting the sample circuit 15 and the sample delayed signal Xn-1 of the peak detector 11 through the absolute value calculator 9 and the threshold comparator 10 comparing the predetermined threshold value. A latch circuit 13 which is connected to the latch circuit 12 and its output is connected to the latch circuit 16 and the input terminal P2 of the comparator 14 and outputs a two-sampled delayed signal Xn-2. After connecting to the input terminal (P1) of the comparator 14 through the output terminal (Q) to the output control terminal (OC) of the latch circuit 16, It is connected to the output control terminal OC of the latch circuit 15 through the inverter gate 17, and the output of the latch circuit 15, 16 is delayed by one sample with the current signal according to the output signal of the comparator 14. A chroma signal movement detection circuit of a composite video signal, characterized by outputting a signal (Xn-1) through a latch circuit (18). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890018202A 1989-12-08 1989-12-08 Color-signal moving detecting circuit of composition-video signals KR930000981B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890018202A KR930000981B1 (en) 1989-12-08 1989-12-08 Color-signal moving detecting circuit of composition-video signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890018202A KR930000981B1 (en) 1989-12-08 1989-12-08 Color-signal moving detecting circuit of composition-video signals

Publications (2)

Publication Number Publication Date
KR910013942A true KR910013942A (en) 1991-08-08
KR930000981B1 KR930000981B1 (en) 1993-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890018202A KR930000981B1 (en) 1989-12-08 1989-12-08 Color-signal moving detecting circuit of composition-video signals

Country Status (1)

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KR (1) KR930000981B1 (en)

Also Published As

Publication number Publication date
KR930000981B1 (en) 1993-02-11

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