DE68919431D1 - Schaltung zur Verbesserung der Bildqualität. - Google Patents

Schaltung zur Verbesserung der Bildqualität.

Info

Publication number: DE68919431D1
Authority: DE; Germany
Prior art keywords: improve; circuit; picture quality; picture; quality
Prior art date: 1988-04-30
Legal status (The legal status 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 status listed.): Expired - Fee Related

Application number

DE68919431T

Other languages

English (en)

Other versions

DE68919431T2 (de

Inventor

Tsuneo Ubukata

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Victor Company of Japan Ltd

Original Assignee

Victor Company of Japan Ltd

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.)

1988-04-30

Filing date

1989-04-27

Publication date

1995-01-05

1988-04-30 Priority claimed from JP63107841A external-priority patent/JPH0683463B2/ja

1988-06-24 Priority claimed from JP63156089A external-priority patent/JPH0683464B2/ja

1989-04-27 Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd

1995-01-05 Application granted granted Critical

1995-01-05 Publication of DE68919431D1 publication Critical patent/DE68919431D1/de

1995-03-30 Publication of DE68919431T2 publication Critical patent/DE68919431T2/de

2009-04-28 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- 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
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
- 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
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Processing Of Color Television Signals (AREA)

DE68919431T 1988-04-30 1989-04-27 Schaltung zur Verbesserung der Bildqualität. Expired - Fee Related DE68919431T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP63107841A JPH0683463B2 (ja)	1988-04-30	1988-04-30	画質改善回路
JP63156089A JPH0683464B2 (ja)	1988-06-24	1988-06-24	画質改善回路及びクロマ差分抽出回路

Publications (2)

Publication Number	Publication Date
DE68919431D1 true DE68919431D1 (de)	1995-01-05
DE68919431T2 DE68919431T2 (de)	1995-03-30

Family

ID=26447811

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68919431T Expired - Fee Related DE68919431T2 (de)	1988-04-30	1989-04-27	Schaltung zur Verbesserung der Bildqualität.

Country Status (4)

Country	Link
US (2)	US5038206A (de)
EP (1)	EP0340648B1 (de)
KR (1)	KR920002543B1 (de)
DE (1)	DE68919431T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0454355B1 (de) *	1990-04-27	1996-12-27	Canon Kabushiki Kaisha	Gerät zur Verarbeitung von Bildsignalen zwecks Verbesserung der Kantensteilheit
KR930011971B1 (ko) *	1991-01-29	1993-12-23	삼성전자 주식회사	색신호 경계면 보정장치
KR940006623B1 (ko) *	1991-02-01	1994-07-23	삼성전자 주식회사	영상신호 처리 시스템
DE4215007A1 (de) *	1992-05-06	1993-11-11	Nokia Deutschland Gmbh	Anordnung zur Übertragung von Farbfernsehsignalen mit einem Leuchtdichtesignal und wenigstens einem diesem zugeordneten Farbsignal
KR970007803B1 (ko) *	1994-03-03	1997-05-16	엘지전자 주식회사	칼라티브이의 색신호 처리 장치
GB2312350B (en) *	1996-04-17	2000-08-30	Quantel Ltd	A signal processing system
JP3418061B2 (ja) *	1996-05-29	2003-06-16	株式会社日立製作所	映像信号処理装置
KR19990067525A (ko) *	1996-09-16	1999-08-25	요트.게.아. 롤페즈	감각 색상 트랜지언트 개선 방법
DE19639572A1 (de) *	1996-09-26	1998-04-02	Philips Patentverwaltung	Verfahren und Anordnung zur Farbkantenversteilerung
US6351557B1 (en)	1998-04-03	2002-02-26	Avid Technology, Inc.	Method and apparatus for color manipulation
JP2002524930A (ja) *	1998-08-28	2002-08-06	サーノフコーポレイション	画像を電子的に拡張する方法および装置
US6552731B1 (en) *	1999-04-16	2003-04-22	Avid Technology, Inc.	Multi-tone representation of a digital image on a digital nonlinear editing system
US6417891B1 (en)	1999-04-16	2002-07-09	Avid Technology, Inc.	Color modification on a digital nonlinear editing system
US6847373B1 (en)	1999-04-16	2005-01-25	Avid Technology, Inc.	Natural color matching in a video editing system
US6571255B1 (en)	1999-04-16	2003-05-27	Robert Gonsalves	Modification of media with common attributes on a digital nonlinear editing system
US6313883B1 (en) *	1999-09-22	2001-11-06	Vista Medical Technologies, Inc.	Method and apparatus for finite local enhancement of a video display reproduction of images
US6477271B1 (en)	2000-04-07	2002-11-05	Avid Technology, Inc.	Secondary color modification of a digital image
US6928187B2 (en) *	2000-04-07	2005-08-09	Avid Technology, Inc.	Secondary color modification of a digital image
US20050094003A1 (en) *	2003-11-05	2005-05-05	Per Thorell	Methods of processing digital image and/or video data including luminance filtering based on chrominance data and related systems and computer program products
US7738044B2 (en) *	2006-03-15	2010-06-15	Vestel Elektronik Sanayi Ve Ticaret A.S.	Method and apparatus for adjusting a chrominance signal

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55127786A (en) *	1979-03-26	1980-10-02	Sony Corp	Frequency characteristic improving circuit of color signal
JPS55127787A (en) *	1979-03-26	1980-10-02	Sony Corp	Frequency characteristic improving circuit of color signal
US4316215A (en) *	1979-09-26	1982-02-16	Matsushita Electric Industrial Co., Ltd.	System for improving reproduction of images in a color television receiver
US4504853A (en) *	1981-11-25	1985-03-12	Faroudja Y C	Enhancement of quadrature modulated chroma by luminance or chroma transitions without chroma demodulation
KR910009880B1 (ko) *	1983-07-25	1991-12-03	가부시기가이샤 히다찌세이사꾸쇼	인터레이스된 텔레비젼 신호중의 화상의 움직임 검출회로
US4553157A (en) *	1983-12-05	1985-11-12	Rca Corporation	Apparatus for correcting errors in color signal transitions
JPS60245370A (ja) *	1984-05-18	1985-12-05	Matsushita Electric Ind Co Ltd	輪郭補正回路
KR900009063B1 (ko) *	1985-09-09	1990-12-17	니뽕 빅터 가부시끼가이샤	반송 색 신호 처리 회로
JPH0644829B2 (ja) *	1985-10-14	1994-06-08	株式会社日立製作所	Ｙ・ｃ分離回路
US4682213A (en) *	1985-10-24	1987-07-21	Rca Corporation	Magnitude independent hanging dot detector
US4862271A (en) *	1987-07-27	1989-08-29	General Electric Company	Video signal interpolator with peaking

1989
- 1989-04-27 DE DE68919431T patent/DE68919431T2/de not_active Expired - Fee Related
- 1989-04-27 EP EP89107704A patent/EP0340648B1/de not_active Expired - Lifetime
- 1989-04-28 US US07/344,874 patent/US5038206A/en not_active Expired - Fee Related
- 1989-04-29 KR KR1019890005787A patent/KR920002543B1/ko not_active IP Right Cessation
1990
- 1990-08-02 US US07/561,650 patent/US5053865A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US5053865A (en)	1991-10-01
DE68919431T2 (de)	1995-03-30
US5038206A (en)	1991-08-06
EP0340648A2 (de)	1989-11-08
EP0340648A3 (de)	1991-11-21
EP0340648B1 (de)	1994-11-23
KR920002543B1 (ko)	1992-03-27
KR890016860A (ko)	1989-11-30

Publication	Publication Date	Title
DE68919431D1 (de)	1995-01-05	Schaltung zur Verbesserung der Bildqualität.
DE3482475D1 (de)	1990-07-19	Polyesteramide.
FI874277L (fi)	1988-04-04	Televisionsutsaendningssystem.
DE3574549D1 (de)	1990-01-04	Bildanzeigeanordnung.
DE3884619D1 (de)	1993-11-04	Digitaler neigungsmesser.
DE3481880D1 (de)	1990-05-10	Schaltkreis.
DE3877388D1 (de)	1993-02-25	Essbare zusammensetzung.
DE3575028D1 (de)	1990-02-01	Geraet zur herstellung von bildern.
DE3850858D1 (de)	1994-09-01	Hitzehärtbare Zusammensetzung.
NO164995C (no)	1990-12-05	Fortykket blekepreparat.
FI880638A0 (fi)	1988-02-11	Digital anslutningskrets i en integrerad abonnentanslutningsenhet.
DE3482957D1 (de)	1990-09-13	Trennbarer ski.
DE3771707D1 (de)	1991-08-29	Gedruckte leiterplatte.
FI841505A (fi)	1984-10-23	Substituerade indeno-pyridazioner.
DE69117677D1 (de)	1996-04-11	Schaltung zur Verbesserung der Bildqualität
EP0333864A4 (de)	1989-12-18	Emitterfolgerschaltung.
FI843355L (fi)	1985-03-01	Grf-analoger.
FI881072L (fi)	1988-09-10	Kretsanordning foer abonnentanslutningar i en digital tidsmultiplex telecentral.
FI905469A0 (fi)	1990-11-05	Kuvankoodauslaite
DE3485292D1 (de)	1992-01-09	Lade-entladekreis.
DE3485535D1 (de)	1992-04-09	Multiplizierschaltung.
DE69013445D1 (de)	1994-11-24	Farbsignalverbesserungsschaltung.
FI86239B (fi)	1992-04-15	Avlaenkningsapparat foer television.
DE3874198D1 (de)	1992-10-08	Bipmos-dekodierschaltung.
FI844803A0 (fi)	1984-12-05	Rasterbredden stabiliserande avlaenkningskrets foer television.

Legal Events

Date	Code	Title	Description
1995-12-21	8364	No opposition during term of opposition
2002-06-27	8339	Ceased/non-payment of the annual fee