KR960006491A - Image quality compensation circuit of TV receiver - Google Patents

Image quality compensation circuit of TV receiver Download PDF

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Publication number
KR960006491A
KR960006491A KR1019940016610A KR19940016610A KR960006491A KR 960006491 A KR960006491 A KR 960006491A KR 1019940016610 A KR1019940016610 A KR 1019940016610A KR 19940016610 A KR19940016610 A KR 19940016610A KR 960006491 A KR960006491 A KR 960006491A
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KR
South Korea
Prior art keywords
signal
color
luminance
transmission path
color burst
Prior art date
Application number
KR1019940016610A
Other languages
Korean (ko)
Inventor
김동윤
Original Assignee
배순훈
대우전자 주식회사
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.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940016610A priority Critical patent/KR960006491A/en
Publication of KR960006491A publication Critical patent/KR960006491A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/44—Colour synchronisation
    • H04N9/455—Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture 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
    • 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

본 발명은 수신되는 방송이 흑백방송일 때 발생되는 컬러도트방해 현상을 제거한 텔레비젼 수상기의 화질 보상회로에 관한 것으로, 입력되는 영상신호로부터 컬러버스트 신호의 존재여부를 검출하는 컬러버스트신호 검출부; 컬러버스트신호 검출부의 출력신호에 의해 제어되어 컬러버스트신호가 존재하지 않을 경우 상기 휘도 및 색신호 분리부(2)와 색신호 처리부(3)간의 전송로를 차단하도록 제어하는 제1전송로제어부; 컬러버스트신호 검출부의 출력신호에 의해 제어되어 컬러버스트신호가 존재하지 않을 경우 상기 휘도 및 색신호 분리부(2)에서 출력되는 휘도신호가 상기 휘도신호 처리부(6)에 공급되도록 전송로를 제어하는 제2전송제어부를 포함하도록 구성된다.The present invention relates to an image compensating circuit of a television receiver which eliminates color dot interference caused when a received broadcast is a black and white broadcast, comprising: a color burst signal detection unit for detecting the presence of a color burst signal from an input video signal; A first transmission path control unit controlled by an output signal of the color burst signal detection unit to block a transmission path between the luminance and color signal separation unit 2 and the color signal processing unit 3 when there is no color burst signal; Controlling the transmission path such that the luminance signal output from the luminance and color signal separation unit 2 is supplied to the luminance signal processing unit 6 when the color burst signal detection unit is controlled by an output signal. And a transmission control unit.

Description

텔레비젼 수상기의 화질 보상회로Image quality compensation circuit of TV receiver

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

제2도는 본 발명에 대한 텔레비젼 수상기의 화질보상 회로도.2 is a picture quality compensation circuit diagram of a television receiver according to the present invention.

Claims (5)

입력되는 반송신호중 휘도 및 색신호를 분리하는 휘도 및 색신호 분리부, 상기 분리된 색신호를 복조처리하는 색신호 처리부, 색신호 성분을 감쇄시키는 3.58MHZ 트랩회로, 3.58 NMZ 트랩회로에서 출력되는 휘도 신호를 증폭처리하는 휘도신호 처리부등을 구비한 텔레비젼의 화질 보상회로에 있어서, 상기 입력되는 영상신호로부터 컬러버스트 신호의 존재여부를 검출하는 컬러버스트신호 검출부; 상기 컬러버스트신호 검출부의 출력신호에 의해 제어되어 컬러버스트신호가 존재하지 않을 경우 상기 휘도 및 색신호 분리부와 색신호 처리부간의 전송로를 차단하도록 제어하는데 제1전송로제어부; 상기 컬러버스트신호 검출부의 출력신호에 의해 제어되어 컬러버스트신호가 존재하지 않을 경우 상기 휘도 및 색신호 분리부에서 출력되는 휘도신호가 상기 휘도신호 처리부에 공급되도록 전송로를 제어하는 제2전송로제어부를 포함하여 구성됨을 특징으로 하는 텔레비젼 수상기의 화질 보상회로.A luminance and color signal separation unit for separating luminance and color signals among input carrier signals, a color signal processing unit for demodulating the separated color signals, amplifying the luminance signal output from a 3.58 MHZ trap circuit for attenuating color signal components, and a 3.58 NMZ trap circuit 1. An image quality compensation circuit of a television having a luminance signal processing unit, etc., comprising: a color burst signal detector for detecting the presence of a color burst signal from the input video signal; A first transmission path control unit controlled to control the output path between the luminance and color signal separation unit and the color signal processing unit when the color burst signal is not present because the color burst signal detection unit is controlled by the output signal; A second transmission path control unit which is controlled by an output signal of the color burst signal detection unit and controls a transmission path such that a luminance signal output from the luminance and color signal separation unit is supplied to the luminance signal processing unit when there is no color burst signal; The image quality compensation circuit of the television receiver comprising a. 제1항에 있어서, 상기 제1전송로제어부는 상기 컬러버스트신호 검출부의 출력신호에 의하여 동작제어되는 제어용 스위치로 이루어짐을 특징으로 하는 텔레비젼 수상기의 화질 보상회로.2. The image quality compensation circuit of a television receiver according to claim 1, wherein said first transmission path control section is comprised of a control switch which is operation controlled by an output signal of said color burst signal detecting section. 제1항 또는 제2항에 있어서, 상기 제1전송제어부는 상기 컬러브스트신호가 존재하면 상기 휘도 및 색신호 분리부(2)와 색신호 처리부(3)의 전송로가 도통되도록 동작함을 특징으로 하는 텔레비젼 수상기의 화질 보상회로.The method of claim 1 or claim 2, wherein the first transmission control unit is characterized in that the operation of the transmission path of the luminance and color signal separation unit 2 and the color signal processing unit 3 when the color burst signal is present. An image quality compensation circuit of a television receiver. 제1항 또는 제2항에 있어서, 상기 제2전송로제어부는 상기 컬러버스트신호 검출부의 출력신호에 의하여 동작제어되는 제어용 스위치로 이루어짐을 특징으로 하는 텔레비젼 수상기의 화질 보상회로.3. The image quality compensation circuit of claim 1 or 2, wherein the second transmission path control unit comprises a control switch which is operated and controlled by an output signal of the color burst signal detection unit. 제4항에 있어서, 상기 제2전송로제어부는 상기 컬러버스트신호가 존재하면 상기 휘도 및 색신호 분리부에서 출력되는 휘도신호가 상기 3.58MHZ 트랩회로로 전송되도록 동작됨을 특징으로 하는 텔레비젼 수상기의 화질 보상회로.5. The image quality compensation of the TV receiver according to claim 4, wherein the second transmission path controller is operated to transmit the luminance signal output from the luminance and color signal separation unit to the 3.58 MHz trap circuit if the color burst signal is present. Circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940016610A 1994-07-11 1994-07-11 Image quality compensation circuit of TV receiver KR960006491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940016610A KR960006491A (en) 1994-07-11 1994-07-11 Image quality compensation circuit of TV receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940016610A KR960006491A (en) 1994-07-11 1994-07-11 Image quality compensation circuit of TV receiver

Publications (1)

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KR960006491A true KR960006491A (en) 1996-02-23

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Application Number Title Priority Date Filing Date
KR1019940016610A KR960006491A (en) 1994-07-11 1994-07-11 Image quality compensation circuit of TV receiver

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020060468A (en) * 2001-01-11 2002-07-18 이문기 Medium for cultivation of herbs, apparatus using the same and cultivation method
KR100463037B1 (en) * 1997-07-12 2005-04-06 삼성전자주식회사 White Balance Adjustment Method and Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463037B1 (en) * 1997-07-12 2005-04-06 삼성전자주식회사 White Balance Adjustment Method and Device
KR20020060468A (en) * 2001-01-11 2002-07-18 이문기 Medium for cultivation of herbs, apparatus using the same and cultivation method

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E902 Notification of reason for refusal
E601 Decision to refuse application