KR940013136A - High Compensation Circuit of Digital Comb Filter - Google Patents

High Compensation Circuit of Digital Comb Filter Download PDF

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Publication number
KR940013136A
KR940013136A KR1019920020701A KR920020701A KR940013136A KR 940013136 A KR940013136 A KR 940013136A KR 1019920020701 A KR1019920020701 A KR 1019920020701A KR 920020701 A KR920020701 A KR 920020701A KR 940013136 A KR940013136 A KR 940013136A
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KR
South Korea
Prior art keywords
signal
luminance
output
converter
7mhz
Prior art date
Application number
KR1019920020701A
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Korean (ko)
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KR0141679B1 (en
Inventor
안봉기
Original Assignee
윤종용
삼성전자 주식회사
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Application filed by 윤종용, 삼성전자 주식회사 filed Critical 윤종용
Priority to KR1019920020701A priority Critical patent/KR0141679B1/en
Publication of KR940013136A publication Critical patent/KR940013136A/en
Application granted granted Critical
Publication of KR0141679B1 publication Critical patent/KR0141679B1/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

Abstract

영상처리장치의 특성 개선회로에 있어서, 합성비디오 입력단(CVS)으로 입력되는 신호를 7MHZ 저역에서 필터링하고, 상기 합성비디오 입력단(CVS)으로 신호를 7MHZ 고역에서 필터링하여 통과시킨다.In the characteristic improvement circuit of the image processing apparatus, the signal input to the composite video input terminal (CVS) is filtered at 7MHZ low pass, and the signal is filtered at 7MHZ high pass to the composite video input terminal (CVS).

상기 4fsc단의 신호에 의해 상기 저역통과필터링 7MHZ의 영상신호를 디지탈 데이타로 변환한후, 상기 4fsc 신호에 의해 처리한후 휘도(Y) 및 칼라(C)별로 분리해 낸다.The low pass filtering 7MHZ video signal is converted into digital data by the 4fsc signal, and then processed by the 4fsc signal and separated by luminance (Y) and color (C).

상기 디지탈처리 및 Y/C 분리부에서 분리된 칼라(C) 및 휘도(Y) 신호별로 상기 4fsc 신호에 의해 휘도(Y), 칼라(C)의 아나로그 신호로 변환한 후 전파지연에 따른 시간을 보상을 하고, 상기 휘도신호와 상기 출력휘호 신호를 가산하여 고해상도 영상신호를 출력토록 되어있다.Time according to the propagation delay after converting the analog (C) and analog (C) signals by the 4fsc signal for each of the color (C) and luminance (Y) signals separated by the digital processing and the Y / C separation unit. To compensate for this, and add the luminance signal and the output signal signal to output a high resolution video signal.

Description

디지탈 콤필터의 고역 보상회로High Compensation Circuit of Digital Comb Filter

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

제1도는 본 발명에 따른 회로도,1 is a circuit diagram according to the present invention,

제2도는 제1도의 동작 파형도.2 is an operational waveform diagram of FIG.

Claims (1)

영상처리장치의 특성 개선회로에 있어서, 상기 영상처리 장치에 합성비디오 입력단(CVS)으로 입력되는 신호를 7MHZ의 저역에서 필터링하는 저역통과필터(101)와, 상기 합성비디오 입력단(CVS)으로 입력되는 신호를 7MHZ의 고역에서 필터링하여 통과시키는 고역통과필터(107)와, 4fsc단의 입력신호에 의해 상기 저역통과필터(101)의 통과대역 7MHZ의 영상신호를 디지탈 데이타로 변환하는 A/D변환부(102)와, 상기 A/D변환부(102)와, 상기 A/D 변환부(102)의 출력 디지탈 데이타를 4fsc단의 신호에 의해 처리한후 휘도(Y) 및 칼라(C)별로 분리해내는 디지탈처리 및 Y/C분리부(103)와, 상기 디지탈처리 Y/C분리부(103)에서 분리된 칼라(C) 및 휘도(Y) 신호별로 상기 4fsc단의 신호에 의해 휘도(Y), 칼라(C)의 아나로그 신호로 변환하는 A/D변환부(104)와, 상기 고역통과필터(107)의 출력을 상기 콤필터부(100)에서 전파지연에 따른 시간을 보상하기 위한 지연회로(108)와, 상기 D/A변환부(104)의 휘도신호와 상기 지연회로(108)의 출력휘도 신호를 가산하는 가산기(105)와, 상기 가산기(105)의 출력과 상기 D/A변환부(104)의 출력을 받아 처리하여 고해상도 영상신호를 출력토록 하는 Y 및 C 처리부(106)로 구성됨을 특징으로 하는 디지탈 콤필터의 고역 보상회로.A characteristic improvement circuit of an image processing apparatus, comprising: a low pass filter (101) for filtering a signal input to a composite video input terminal (CVS) at a low frequency of 7MHZ and a composite video input terminal (CVS). A high pass filter 107 for filtering and passing the signal at a high frequency of 7MHZ, and an A / D converter for converting a video signal of the passband 7MHZ of the low pass filter 101 into digital data by an input signal of 4fsc stage. And the output digital data of the A / D converter 102 and the A / D converter 102 by signals of 4 fsc stages, and separated by luminance (Y) and color (C). The luminance (Y) is obtained by the signal of the 4fsc stage for each of the color (C) and luminance (Y) signals separated by the digital processing and Y / C separation unit 103 and the digital processing Y / C separation unit 103. ), The A / D converter 104 converting the analog signal of the color C, and the output of the high pass filter 107 The comb filter unit 100 adds a delay circuit 108 for compensating for the time due to the propagation delay, a luminance signal of the D / A converter 104 and an output luminance signal of the delay circuit 108. And a Y and C processing unit 106 for receiving the output of the adder 105 and the output of the D / A converter 104 to process and output a high resolution video signal. High-pass compensation circuit of the filter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920020701A 1992-11-05 1992-11-05 High pass compensation circuit of digital com filter KR0141679B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920020701A KR0141679B1 (en) 1992-11-05 1992-11-05 High pass compensation circuit of digital com filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920020701A KR0141679B1 (en) 1992-11-05 1992-11-05 High pass compensation circuit of digital com filter

Publications (2)

Publication Number Publication Date
KR940013136A true KR940013136A (en) 1994-06-25
KR0141679B1 KR0141679B1 (en) 1998-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920020701A KR0141679B1 (en) 1992-11-05 1992-11-05 High pass compensation circuit of digital com filter

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KR (1) KR0141679B1 (en)

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Publication number Publication date
KR0141679B1 (en) 1998-06-15

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