KR890013928A - 화질 조정회로 - Google Patents

화질 조정회로

Info

Publication number
KR890013928A
KR890013928A KR1019890002396A KR890002396A KR890013928A KR 890013928 A KR890013928 A KR 890013928A KR 1019890002396 A KR1019890002396 A KR 1019890002396A KR 890002396 A KR890002396 A KR 890002396A KR 890013928 A KR890013928 A KR 890013928A
Authority
KR
South Korea
Prior art keywords
image quality
adjustment circuit
quality adjustment
circuit
image
Prior art date
Application number
KR1019890002396A
Other languages
English (en)
Other versions
KR930003566B1 (ko
Inventor
미노루 요네다
아키히코 이노모토
타카시 코가
히로시 코바타
Original Assignee
가부시기 가이샤 도시바
도시바 오디오 비디오 엔지니어링 가부시기가이샤
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 가부시기 가이샤 도시바, 도시바 오디오 비디오 엔지니어링 가부시기가이샤 filed Critical 가부시기 가이샤 도시바
Publication of KR890013928A publication Critical patent/KR890013928A/ko
Application granted granted Critical
Publication of KR930003566B1 publication Critical patent/KR930003566B1/ko

Links

Classifications

    • 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
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
    • 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
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • 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
    • H04N5/142—Edging; Contouring

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
KR1019890002396A 1988-02-29 1989-02-28 화질 조정회로 KR930003566B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63-44261 1988-02-29
JP63044261A JPH01220975A (ja) 1988-02-29 1988-02-29 画質調整回路

Publications (2)

Publication Number Publication Date
KR890013928A true KR890013928A (ko) 1989-09-26
KR930003566B1 KR930003566B1 (ko) 1993-05-06

Family

ID=12686573

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890002396A KR930003566B1 (ko) 1988-02-29 1989-02-28 화질 조정회로

Country Status (6)

Country Link
US (1) US4916542A (ko)
EP (1) EP0331017B1 (ko)
JP (1) JPH01220975A (ko)
KR (1) KR930003566B1 (ko)
CA (1) CA1326289C (ko)
DE (1) DE68919098T2 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425309B1 (ko) * 2001-11-22 2004-03-30 삼성전자주식회사 화질 개선 장치

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744135Y2 (ja) * 1988-06-20 1995-10-09 ソニー株式会社 輪郭強調回路
US5262863A (en) * 1989-10-06 1993-11-16 Kabushiki Kaisha Toshiba Video signal processor having an adjustable noise cancelling circuit
JP3094339B2 (ja) * 1990-07-20 2000-10-03 松下電器産業株式会社 輝度信号ノイズ抑圧装置
JPH04241580A (ja) * 1991-01-14 1992-08-28 Hitachi Ltd 波形等化装置
DE4105516C2 (de) * 1991-02-22 1995-11-16 Hell Ag Linotype Verfahren und Vorrichtung zur verbesserten Wiedergabe von Konturen
IT1258122B (it) * 1992-11-25 1996-02-20 Seleco Spa Sistema migliorativo del contrasto di immagini video utilizzante un filtro di volterra del secondo ordine.
JPH08298603A (ja) * 1995-04-26 1996-11-12 Matsushita Electric Ind Co Ltd 映像信号処理装置
US5818972A (en) * 1995-06-07 1998-10-06 Realnetworks, Inc. Method and apparatus for enhancing images using helper signals
DE69838779D1 (de) * 1997-08-26 2008-01-10 Matsushita Electric Ind Co Ltd Korrekturvorrichtung für senkrechte konturen
US6885775B2 (en) * 2000-01-21 2005-04-26 Matsushita Electric Industrial Co., Ltd. Image processing method and image processing apparatus
DE10214411A1 (de) * 2002-03-30 2003-10-09 Bts Media Solutions Gmbh Schaltung zur Verarbeitung von Videosignalen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5428981Y2 (ko) * 1974-06-17 1979-09-17
US4009334A (en) * 1976-03-17 1977-02-22 Eastman Kodak Company Video noise reduction circuit
JPS5689173A (en) * 1979-12-20 1981-07-20 Sony Corp Vertical aperture correcting circuit
US4573075A (en) * 1983-06-24 1986-02-25 Rca Corporation Digital signal coring apparatus with controllable coring threshold level
KR890004220B1 (ko) * 1984-06-30 1989-10-27 마쯔시다덴기산교 가부시기가이샤 영상신호 처리장치
JPS61134198A (ja) * 1984-12-05 1986-06-21 Matsushita Electric Ind Co Ltd 映像信号処理装置
US4691293A (en) * 1984-12-28 1987-09-01 Ford Aerospace & Communications Corporation High frequency, wide range FIR filter
JPS62190973A (ja) * 1986-02-18 1987-08-21 Victor Co Of Japan Ltd ノイズリダクシヨン回路
JPS62239670A (ja) * 1986-04-11 1987-10-20 Ikegami Tsushinki Co Ltd 輪郭強調装置
JPS634753A (ja) * 1986-06-24 1988-01-09 Nec Corp 交換方式
JPH06170464A (ja) * 1992-11-30 1994-06-21 Riken Corp 環状部材の中空シャフトへの結合方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425309B1 (ko) * 2001-11-22 2004-03-30 삼성전자주식회사 화질 개선 장치

Also Published As

Publication number Publication date
DE68919098T2 (de) 1995-06-22
US4916542A (en) 1990-04-10
JPH01220975A (ja) 1989-09-04
KR930003566B1 (ko) 1993-05-06
EP0331017A3 (en) 1990-06-13
CA1326289C (en) 1994-01-18
EP0331017A2 (en) 1989-09-06
DE68919098D1 (de) 1994-12-08
EP0331017B1 (en) 1994-11-02

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