ATE136712T1 - Videosystem mit weissausdehnung durch rückkopplungssteuerung und helligkeitskompensation - Google Patents

Videosystem mit weissausdehnung durch rückkopplungssteuerung und helligkeitskompensation

Info

Publication number: ATE136712T1
Authority: AT; Austria
Prior art keywords: signal; processor; input; brightness control; brightness
Prior art date: 1991-12-16

Application number

AT92117573T

Other languages

English (en)

Inventor

William Adamson Lagoni

Robert Lawrence O'brien

Original Assignee

Thomson Consumer Electronics

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.)

1991-12-16

Filing date

1992-10-15

Publication date

1996-04-15

1992-10-15 Application filed by Thomson Consumer Electronics filed Critical Thomson Consumer Electronics

1996-04-15 Application granted granted Critical

1996-04-15 Publication of ATE136712T1 publication Critical patent/ATE136712T1/de

Links

Classifications

- 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
- 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

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Picture Signal Circuits (AREA)
Television Receiver Circuits (AREA)
Processing Of Color Television Signals (AREA)
Color Television Image Signal Generators (AREA)
Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Television Systems (AREA)

AT92117573T 1991-12-16 1992-10-15 Videosystem mit weissausdehnung durch rückkopplungssteuerung und helligkeitskompensation ATE136712T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/808,328 US5191420A (en)	1991-12-16	1991-12-16	Video system with feedback controlled "white stretch" processing and brightness compensation

Publications (1)

Publication Number	Publication Date
ATE136712T1 true ATE136712T1 (de)	1996-04-15

Family

ID=25198474

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT92117573T ATE136712T1 (de)	1991-12-16	1992-10-15	Videosystem mit weissausdehnung durch rückkopplungssteuerung und helligkeitskompensation

Country Status (14)

Country	Link
US (1)	US5191420A (de)
EP (1)	EP0547325B1 (de)
JP (1)	JP3052029B2 (de)
KR (1)	KR100257940B1 (de)
CN (1)	CN1042999C (de)
AT (1)	ATE136712T1 (de)
CA (1)	CA2080605C (de)
DE (1)	DE69209795T2 (de)
ES (1)	ES2087395T3 (de)
HU (1)	HU216459B (de)
MX (1)	MX9207296A (de)
MY (1)	MY108024A (de)
SG (1)	SG77543A1 (de)
TR (1)	TR26448A (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5391944A (en) *	1992-01-22	1995-02-21	Matsushita Electric Industrial Co., Ltd.	Image-tone control circuit and gradient adjusting circuit therefor
KR100296872B1 (ko) *	1993-07-22	2001-10-24	김순택	전계방출표시소자로이루어지는디스플레이패널의자동휘도보정장치및그구동방법
US5379162A (en) *	1993-08-19	1995-01-03	International Business Machines Corporation	Customized data recovery procedures selected responsive to readback errors and transducer head and disk parameters
US5515113A (en) *	1994-02-28	1996-05-07	Matsushita Electric Industrial Co., Ltd.	Automatic black stretch control for a television receiver
JP3501252B2 (ja) *	1995-06-16	2004-03-02	三菱電機株式会社	階調補正装置
EP0963111A1 (de) *	1998-06-02	1999-12-08	Deutsche Thomson-Brandt Gmbh	Verfahren und Vorrichtung zur dynamischen Kontrastverbesserung in Videobildern
KR100346840B1 (ko) *	1999-11-04	2002-08-03	삼성전자 주식회사	화면의 펄럭거림을 최소화하는 흑신장 장치 및 그 방법
JP3661168B2 (ja)	1999-11-25	2005-06-15	松下電器産業株式会社	階調補正装置、階調補正方法、及び映像表示装置
US6806908B2 (en) *	2001-08-10	2004-10-19	Koninklijke Philips Electronics N.V.	Cathode current limiting circuit for projection television display systems
CN100382568C (zh) *	2001-11-01	2008-04-16	汤姆森特许公司	动态对比度提高的方法
KR100425312B1 (ko) *	2001-12-11	2004-03-30	삼성전자주식회사	자동 휘도 조정 장치 및 방법
JP2003177727A (ja)	2001-12-13	2003-06-27	Nec Viewtechnology Ltd	画像表示装置および光量調節方法
JP4313996B2 (ja)	2002-08-30	2009-08-12	トヨタ自動車株式会社	撮像装置
KR100449744B1 (ko) *	2002-10-21	2004-09-22	삼성전자주식회사	영상 처리 장치에서의 화면 밝기 제어 방법 및 장치
KR100497395B1 (ko) *	2003-06-30	2005-06-23	삼성전자주식회사	화질을 자동으로 설정하는 방법
KR100608814B1 (ko) *	2004-07-16	2006-08-08	엘지전자 주식회사	엘씨디 장치의 입력 영상 표시 방법
RU2311740C1 (ru) *	2006-03-15	2007-11-27	Федеральное Государственное Унитарное Предприятие "Государственный Рязанский Приборный Завод"	Устройство для автоматической регулировки амплитуды видеосигнала
KR20080015626A (ko)	2006-08-16	2008-02-20	삼성전자주식회사	영상처리장치 및 영상처리방법
JP4637812B2 (ja) *	2006-11-09	2011-02-23	オリンパス株式会社	画像信号処理装置、画像信号処理プログラム、画像信号処理方法
JP4853337B2 (ja) *	2007-03-09	2012-01-11	ソニー株式会社	信号変換装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS56107674A (en) *	1980-01-31	1981-08-26	Sony Corp	Gradation correcting device of video signal
US4599643A (en) *	1983-12-29	1986-07-08	Rca Corporation	Apparatus responsive to plural color video signals for amplitude limiting the video signals to assist beam current limiting
US4980756A (en) *	1989-08-25	1990-12-25	Rca Licensing Corporation	Control signal generator for a television system
US5003394A (en) *	1989-08-25	1991-03-26	Rca Licensing Corporation	Dynamic video system including automatic contrast and "white-stretch" processing sections
US4982287A (en) *	1989-11-01	1991-01-01	Rca Licensing Corporation	Control of brightness level adapted to control of contrast

1991
- 1991-12-16 US US07/808,328 patent/US5191420A/en not_active Expired - Lifetime
1992
- 1992-10-13 HU HU9203219A patent/HU216459B/hu not_active IP Right Cessation
- 1992-10-15 ES ES92117573T patent/ES2087395T3/es not_active Expired - Lifetime
- 1992-10-15 EP EP92117573A patent/EP0547325B1/de not_active Expired - Lifetime
- 1992-10-15 CA CA002080605A patent/CA2080605C/en not_active Expired - Fee Related
- 1992-10-15 SG SG1996003489A patent/SG77543A1/en unknown
- 1992-10-15 DE DE69209795T patent/DE69209795T2/de not_active Expired - Lifetime
- 1992-10-15 AT AT92117573T patent/ATE136712T1/de not_active IP Right Cessation
- 1992-10-20 MY MYPI92001881A patent/MY108024A/en unknown
- 1992-11-09 JP JP4339394A patent/JP3052029B2/ja not_active Expired - Fee Related
- 1992-11-10 KR KR1019920020995A patent/KR100257940B1/ko not_active Expired - Fee Related
- 1992-11-12 CN CN92113283A patent/CN1042999C/zh not_active Expired - Fee Related
- 1992-11-18 TR TR92/1119A patent/TR26448A/xx unknown
- 1992-12-15 MX MX9207296A patent/MX9207296A/es not_active IP Right Cessation

Also Published As

Publication number	Publication date
MX9207296A (es)	1993-11-01
EP0547325A3 (de)	1993-07-14
DE69209795T2 (de)	1996-11-07
HU216459B (hu)	1999-06-28
JPH05308592A (ja)	1993-11-19
JP3052029B2 (ja)	2000-06-12
HUT65447A (en)	1994-06-28
CN1042999C (zh)	1999-04-14
CA2080605A1 (en)	1993-06-17
HU9203219D0 (en)	1993-03-01
KR100257940B1 (ko)	2000-06-01
CA2080605C (en)	1998-06-30
US5191420A (en)	1993-03-02
KR930015795A (ko)	1993-07-24
TR26448A (tr)	1995-03-15
EP0547325A2 (de)	1993-06-23
CN1073567A (zh)	1993-06-23
MY108024A (en)	1996-07-30
DE69209795D1 (de)	1996-05-15
ES2087395T3 (es)	1996-07-16
EP0547325B1 (de)	1996-04-10
SG77543A1 (en)	2001-01-16

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Legal Events

Date	Code	Title	Description
1996-12-15	UEP	Publication of translation of european patent specification
2003-07-15	REN	Ceased due to non-payment of the annual fee