KR940005177A - Color signal separator - Google Patents

Color signal separator Download PDF

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Publication number
KR940005177A
KR940005177A KR1019920014469A KR920014469A KR940005177A KR 940005177 A KR940005177 A KR 940005177A KR 1019920014469 A KR1019920014469 A KR 1019920014469A KR 920014469 A KR920014469 A KR 920014469A KR 940005177 A KR940005177 A KR 940005177A
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KR
South Korea
Prior art keywords
signal
absolute value
correlator
value circuit
delayer
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KR1019920014469A
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Korean (ko)
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KR0141127B1 (en
Inventor
김지호
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강진구
삼성전자 주식회사
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Priority to KR1019920014469A priority Critical patent/KR0141127B1/en
Publication of KR940005177A publication Critical patent/KR940005177A/en
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Publication of KR0141127B1 publication Critical patent/KR0141127B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—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
    • H04N9/78—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 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

수평주사선 간의 수직상관성의 여부에 따라 수직상관기 혹은 수평상관기에 의해 색신호를 분리하도록 하는 색신호 분리장치가 개시된다.Disclosed is a color signal separating apparatus for separating color signals by a vertical correlator or a horizontal correlator depending on whether or not there is a vertical correlation between horizontal scan lines.

순차적인 수평주사선 간의 수직상관성에 의해 색신호를 분리하는 수직상관기와 어떤 수평주사선에 있어서 전후의 색신호 간의 수평상관성에 의해 색신호를 분리하는 수평상관기와 순차적인 수평주사선 간의 수직상관성의 여부를 판별하고 그 결과에 의해 상기 수직상관기 혹은 상기 수평상관기를 선택하게 하는 수직상관 판별장치를 구비한다.The vertical correlation between the vertical correlator separating color signals by the vertical correlation between the sequential horizontal scan lines and the horizontal correlator separating the color signals by the horizontal correlation between the front and rear color signals on a horizontal scan line and the vertical correlation between the horizontal horizontal scan lines and the result And a vertical correlation correlator for selecting the vertical correlator or the horizontal correlator.

Description

색신호 분리장치Color signal separator

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

제1도는 본 발명에 의한 색신호 분리장치의 일예를 보이는 도면이다.1 is a view showing an example of the color signal separation device according to the present invention.

제2도는 제1도에 있어서 수직상관기의 일예를 보이는 도면이다.FIG. 2 is a diagram showing an example of a vertical correlator in FIG.

제3도는 예시적인 영상을 보이는 도면이다.3 is a diagram showing an exemplary image.

제4도는 제1도의 색신호 분리장치에 입력되는 수평주사선을 보이는 도면이다.4 is a view showing a horizontal scan line input to the color signal separation device of FIG.

Claims (3)

입력영상신호를 1H 지연시키는 제1 지연기(1)와 제1 지연기(1)에서의 지연된 신호를 인버트하는 인버터(3)와 제1 지연기 (1)에서의 지연된 신호를 1H 지연시키는 제2 지연기(2)를 갖는 색신호 분리장치에 있어서, 상기 영상신호와 상기 인버터(3)로부터의 인버트된 신호와 상기 제2 지연기(2)로부터의 지연된 신호에 대응하는 수직상관기(15)와, 상기 인버터(3)로부터의 인버트된 신호에 대응하는 수평상관기(20)와, 상기 영상신호와 상기 인버터(3)로부터의 인버트된 신호와 상기 제2 지연기(2)로부터의 지연된 신호에 대응하는 수직상관성 판별기(30)와, 상기 수직상관성 판별기(30)로부터의 출력에 의해 상기 수직상관기(15)혹은 상기 수평상관기(20)의 출력을 선택하여 출력하는 스위치(60)를 구비하여 영상신호의 수직상관성 혹은 수평상관성의 여부에 의해 각각 수직상관기 혹은 수평상관기에 의해 색신호를 분리하도록 하는 것을 특징으로 하는 색신호 분리장치.A first delayer (1) for delaying the input video signal by 1H and an inverter (3) for inverting the delayed signal in the first delayer (1) and a delayer for 1H delayed delayed signal in the first delayer (1). A color signal separator having two delayers (2), comprising: a vertical correlator (15) corresponding to the video signal, the inverted signal from the inverter (3), and the delayed signal from the second delayer (2); A horizontal correlator 20 corresponding to the inverted signal from the inverter 3, the video signal, the inverted signal from the inverter 3, and a delayed signal from the second delayer 2; And a switch 60 for selecting and outputting the output of the vertical correlator 15 or the horizontal correlator 20 by the output from the vertical correlation coefficient discriminator 30. The number depends on whether the video signal is vertically or horizontally related. Color signal separating device characterized in that to separate the color signal by a correlator or horizontal correlator. 제1항에 있어서, 상기 수직상관성 판별기(30)는 상기 영상신호에 대응하는 제1 절대값회로(31)와, 상기 인버터(3)로부터의 인버트된 신호에 대응하는 제2절대값회로(32)와, 상기 제2 지연기(2)로부터의 지연된 신호에 대응하는 제3 절대값회로(33)와, 상기 제1 절대값회로(31)로부터의 제1 절대값신호와 상기 제2 절대값회로(32)로부터의 제2 절대값신호에 대응하는 제1 감산기(34)와, 상기 제2 절대값회로(32)로부터의 제2 절대값신호와 상기 제3 절대값회로(33)로부터의 제3 절대값신호에 대응하는 제2 감산기(35)와, 상기 제1 감산기에 대응하는 제4 절대값회로(36)와, 상기 제2 감산기에 대응하는 제5 절대값회로(37)와, 임계값발생기(40)와, 상기 제4 절대값회로(36)와 상기 임계값발생기(40)에 대응하는 제1 비교기(38)와 제2 비교기(39)에 대응하는 논리합연산기(41)를 구비하는 것을 특징으로하는 색신호 분리장치.The method of claim 1, wherein the vertical correlation coefficient discriminator 30 includes a first absolute value circuit 31 corresponding to the video signal and a second absolute value circuit corresponding to an inverted signal from the inverter 3; 32, a third absolute value circuit 33 corresponding to the delayed signal from the second delay unit 2, a first absolute value signal from the first absolute value circuit 31 and the second absolute value; From the first subtracter 34 corresponding to the second absolute value signal from the value circuit 32, the second absolute value signal from the second absolute value circuit 32 and the third absolute value circuit 33; A second subtractor 35 corresponding to the third absolute value signal of the first subtractor; a fourth absolute value circuit 36 corresponding to the first subtractor; and a fifth absolute value circuit 37 corresponding to the second subtractor; The logic generator 41 corresponding to the first comparator 38 and the second comparator 39 corresponding to the threshold generator 40, the fourth absolute value circuit 36, and the threshold generator 40. With Color signal separation apparatus characterized in that. 제1항에 있어서, 상기 제1 지연기(1)에서의 지연된 신호에 대응하는 제3 지연기(42)와, 상기 제3 지연기(42)에서의 지연된 신호와 상기 스위치(60)에서의 분리된 색신호에 대응하는 감산기(43)를 더 구비하는 것을 특징으로 하는 색신호 분리장치.3. A third delay (42) corresponding to a delayed signal at the first delay (1), a delayed signal at the third delay (42) and at the switch (60). And a subtractor (43) corresponding to the separated color signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920014469A 1992-08-12 1992-08-12 Apparatus for separating chroma signal KR0141127B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920014469A KR0141127B1 (en) 1992-08-12 1992-08-12 Apparatus for separating chroma signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920014469A KR0141127B1 (en) 1992-08-12 1992-08-12 Apparatus for separating chroma signal

Publications (2)

Publication Number Publication Date
KR940005177A true KR940005177A (en) 1994-03-16
KR0141127B1 KR0141127B1 (en) 1998-06-15

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Application Number Title Priority Date Filing Date
KR1019920014469A KR0141127B1 (en) 1992-08-12 1992-08-12 Apparatus for separating chroma signal

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KR0141127B1 (en) 1998-06-15

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