DE69030638D1 - An die Bildsteuerung angepasste Helligkeitspegelsteuerung - Google Patents

An die Bildsteuerung angepasste Helligkeitspegelsteuerung

Info

Publication number: DE69030638D1
Authority: DE; Germany
Prior art keywords: brightness level; image; control; level; level control
Prior art date: 1989-11-01
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 - Lifetime

Application number

DE69030638T

Other languages

English (en)

Other versions

DE69030638T2 (de

Inventor

William Adamson Lagoni

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.)

Technicolor USA Inc

Original Assignee

Thomson Consumer Electronics Inc

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.)

1989-11-01

Filing date

1990-10-24

Publication date

1997-06-12

1990-10-24 Application filed by Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc

1997-06-12 Application granted granted Critical

1997-06-12 Publication of DE69030638D1 publication Critical patent/DE69030638D1/de

1997-09-04 Publication of DE69030638T2 publication Critical patent/DE69030638T2/de

2010-10-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—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
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
- H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Television Receiver Circuits (AREA)
Transforming Electric Information Into Light Information (AREA)
Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Processing Of Color Television Signals (AREA)
Picture Signal Circuits (AREA)
Ultra Sonic Daignosis Equipment (AREA)
Transplanting Machines (AREA)
Electrotherapy Devices (AREA)

DE69030638T 1989-11-01 1990-10-24 An die Bildsteuerung angepasste Helligkeitspegelsteuerung Expired - Lifetime DE69030638T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/438,930 US4982287A (en)	1989-11-01	1989-11-01	Control of brightness level adapted to control of contrast

Publications (2)

Publication Number	Publication Date
DE69030638D1 true DE69030638D1 (de)	1997-06-12
DE69030638T2 DE69030638T2 (de)	1997-09-04

Family

ID=23742624

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69030638T Expired - Lifetime DE69030638T2 (de)	1989-11-01	1990-10-24	An die Bildsteuerung angepasste Helligkeitspegelsteuerung

Country Status (15)

Country	Link
US (1)	US4982287A (de)
EP (1)	EP0425993B1 (de)
JP (1)	JP2899680B2 (de)
KR (1)	KR100205492B1 (de)
CN (1)	CN1035149C (de)
AT (1)	ATE152872T1 (de)
CA (1)	CA2026340C (de)
DE (1)	DE69030638T2 (de)
ES (1)	ES2101684T3 (de)
FI (1)	FI98678C (de)
MY (1)	MY105993A (de)
PT (1)	PT95681B (de)
RU (1)	RU2130235C1 (de)
SG (1)	SG119128A1 (de)
TR (1)	TR25041A (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5134490A (en) *	1989-04-18	1992-07-28	Thomson Consumer Electronics, Inc.	Beam current limiter with brightness control threshold extension
KR920007607B1 (ko) *	1989-09-01	1992-09-08	삼성전자 주식회사	디지탈 텔레비젼 수상기에 있어서 콘트라스트 조정회로
US5125046A (en) *	1990-07-26	1992-06-23	Ronald Siwoff	Digitally enhanced imager for the visually impaired
US5847773A (en) *	1991-08-30	1998-12-08	Thomson Consumer Electronics, Inc.	Video system including apparatus for deactivating an automatic control arrangement
JPH0594146A (ja) *	1991-10-02	1993-04-16	Mitsubishi Electric Corp	輝度制御回路
US5200829A (en) *	1991-12-16	1993-04-06	Thomson Consumer Electronics, Inc.	Contrast beam current limiting arrangement with secondary brightness beam current limiting provisions
US5191420A (en) *	1991-12-16	1993-03-02	Thomson Consumer Electronics, Inc.	Video system with feedback controlled "white stretch" processing and brightness compensation
KR970000851B1 (ko) *	1992-09-01	1997-01-20	마쯔시다덴기산교 가부시기가이샤	영상신호처리장치
DE69333238D1 (de) *	1992-11-17	2003-11-13	Koninkl Philips Electronics Nv	Wiedergabeanordnung mit einer Korrekturschaltung und Korrekturschaltung zum Gebrauch in einer solchen Anordnung
US5446483A (en) *	1993-04-19	1995-08-29	Advanced Micro Devices, Inc.	Variable speed controller for an electronic display
JPH06311396A (ja) *	1993-04-27	1994-11-04	Mitsubishi Electric Corp	映像回路
JP3267061B2 (ja) *	1994-08-29	2002-03-18	松下電器産業株式会社	Ａｂｌ回路とａｃｌ回路と輝度・色差信号処理回路とテレビジョン受像機
KR970005942B1 (ko) *	1994-09-16	1997-04-22	엘지전자 주식회사	모니터의 휘도 자동보정장치
KR0179844B1 (ko) *	1995-10-06	1999-05-01	문정환	티브이의 화면 모서리 부분의 밝기 조정회로
KR100382629B1 (ko) *	2000-10-05	2003-05-09	오승현	표시 장치에 표시되는 색을 보정하기 위한 장치, 방법 및프로그램을 기록한 기록매체
KR100497395B1 (ko) *	2003-06-30	2005-06-23	삼성전자주식회사	화질을 자동으로 설정하는 방법
CN100405455C (zh) *	2004-02-23	2008-07-23	鸿富锦精密工业（深圳）有限公司	亮度及对比度调整装置及方法
JP4387220B2 (ja) *	2004-02-24	2009-12-16	株式会社日立製作所	映像表示方法及びその装置
US7605872B2 (en) *	2005-06-20	2009-10-20	Mediatek Inc.	Video contrast adjusting method and system
US9681062B2 (en) *	2011-09-26	2017-06-13	Magna Electronics Inc.	Vehicle camera image quality improvement in poor visibility conditions by contrast amplification

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3735029A (en) *	1971-04-09	1973-05-22	D Sunstein	Method and apparatus for maintaining the beam current of an image-display device within controlled limits
GB1400427A (en) *	1971-11-08	1975-07-16	Rca Corp	Video signal processing apparatus
JPS4944120U (de) *	1972-07-20	1974-04-18
GB1407272A (en) *	1972-10-17	1975-09-24	Tektronix Inc	Brightness and contrast control circuit
US3928867A (en) *	1974-05-10	1975-12-23	Gen Electric	Television receiver with picture level control
US3961361A (en) *	1975-05-23	1976-06-01	Rca Corporation	Gain control arrangement useful in a television signal processing system
US4091419A (en) *	1976-06-22	1978-05-23	Rhee Dennis W	Combination contrast/brightness control for a television receiver
US4126884A (en) *	1977-05-05	1978-11-21	Rca Corporation	Kinescope beam current limiter employing automatic sequential control of image contrast and brightness to limit beam current
US4506292A (en) *	1982-06-14	1985-03-19	Motorola, Inc.	Video driver circuit and method for automatic gray scale adjustment and elimination of contrast tracking errors
JPS5986974A (ja) *	1982-11-11	1984-05-19	Sharp Corp	自動輝度制限回路
JPS6043981A (ja) *	1983-08-22	1985-03-08	Sony Corp	ビ−ム電流制限回路
US4654717A (en) *	1985-05-20	1987-03-31	Rca Corporation	Cathode-ray tube arc-over protection for digital data in television display apparatus
JPS62281575A (ja) *	1986-05-29	1987-12-07	Mitsubishi Electric Corp	コントラスト・ブライトネス調整回路
JPS6348979A (ja) *	1986-08-19	1988-03-01	Fuji Photo Film Co Ltd	Ｃｒｔのコントラスト調整装置

1989
- 1989-11-01 US US07/438,930 patent/US4982287A/en not_active Expired - Lifetime
1990
- 1990-09-27 CA CA002026340A patent/CA2026340C/en not_active Expired - Fee Related
- 1990-10-04 MY MYPI90001728A patent/MY105993A/en unknown
- 1990-10-24 DE DE69030638T patent/DE69030638T2/de not_active Expired - Lifetime
- 1990-10-24 ES ES90120377T patent/ES2101684T3/es not_active Expired - Lifetime
- 1990-10-24 SG SG1996001998A patent/SG119128A1/en unknown
- 1990-10-24 EP EP90120377A patent/EP0425993B1/de not_active Expired - Lifetime
- 1990-10-24 AT AT90120377T patent/ATE152872T1/de not_active IP Right Cessation
- 1990-10-25 PT PT95681A patent/PT95681B/pt not_active IP Right Cessation
- 1990-10-25 FI FI905264A patent/FI98678C/fi not_active IP Right Cessation
- 1990-10-25 JP JP2286054A patent/JP2899680B2/ja not_active Expired - Lifetime
- 1990-10-31 TR TR90/1026A patent/TR25041A/xx unknown
- 1990-10-31 CN CN90108763A patent/CN1035149C/zh not_active Expired - Lifetime
- 1990-10-31 RU SU4831483A patent/RU2130235C1/ru active
- 1990-11-01 KR KR1019900017662A patent/KR100205492B1/ko not_active IP Right Cessation

Also Published As

Publication number	Publication date
JP2899680B2 (ja)	1999-06-02
ES2101684T3 (es)	1997-07-16
CN1035149C (zh)	1997-06-11
US4982287A (en)	1991-01-01
KR100205492B1 (ko)	1999-07-01
RU2130235C1 (ru)	1999-05-10
ATE152872T1 (de)	1997-05-15
SG119128A1 (en)	2006-02-28
DE69030638T2 (de)	1997-09-04
FI98678B (fi)	1997-04-15
EP0425993A2 (de)	1991-05-08
EP0425993A3 (en)	1992-03-04
CA2026340A1 (en)	1991-05-02
CA2026340C (en)	1994-09-13
PT95681A (pt)	1992-05-29
EP0425993B1 (de)	1997-05-07
PT95681B (pt)	1998-07-31
MY105993A (en)	1995-02-28
CN1051477A (zh)	1991-05-15
FI905264A0 (fi)	1990-10-25
FI98678C (fi)	1997-07-25
TR25041A (tr)	1992-09-01
JPH03169179A (ja)	1991-07-22
KR910011062A (ko)	1991-06-29

Publication	Publication Date	Title
DE69030638D1 (de)	1997-06-12	An die Bildsteuerung angepasste Helligkeitspegelsteuerung
PT95105A (pt)	1992-03-31	Aparelho de um arranjo de televisao, incluindo seccoes de processamento automatico de contraste e dilatacao de branco
EP0855665A3 (de)	1999-11-17	Abtastsystem und Verfahren
CA2023852A1 (en)	1991-02-26	Control signal generator for a television system
CA2040929A1 (en)	1991-10-28	Television apparatus
DE69020939D1 (de)	1995-08-24	Videosignalsteuerschaltung.
HU9203219D0 (en)	1993-03-01	Circuit arrangement for processing video signals with feedback
CA2085754A1 (en)	1993-06-21	Gradation compensation apparatus of video image
MY106641A (en)	1995-07-31	Method for positioning a light beam on a picture surface.
CA2099832A1 (en)	1994-01-07	Color picture display apparatus
JPS53126817A (en)	1978-11-06	Level controller of video signal
KR930003305B1 (en)	1993-04-24	Iris controlling circuit
MY111249A (en)	1999-10-30	Video system including apparatus for deactivating an automatic control arrangement
JPS5437627A (en)	1979-03-20	Picture quality adjusting circuit
JPS6460177A (en)	1989-03-07	Image pick-up device
JPS5442929A (en)	1979-04-05	Television picture receiver
JPS5258416A (en)	1977-05-13	Focus voltage adjusting method
ATE122509T1 (de)	1995-05-15	Vorrichtung zur automatischen regelung eines signalpegels.
JPS5636281A (en)	1981-04-09	Picture quality improving unit of color television receiver
JPS56114480A (en)	1981-09-09	X-ray television device
JPS5250616A (en)	1977-04-22	Outline compensation device
ES2019175A6 (es)	1991-06-01	Perfeccionasmientos intrpducidos en una camara de video con control automatico de intensidad de luz.
JPS6411487A (en)	1989-01-17	Brightness control limiting circuit

Legal Events

Date	Code	Title	Description
1998-06-04	8364	No opposition during term of opposition
2002-02-14	8320	Willingness to grant licences declared (paragraph 23)