DE68916011D1 - Automatische referenzregelung für bildabtaster. - Google Patents

Automatische referenzregelung für bildabtaster.

Info

Publication number: DE68916011D1
Authority: DE; Germany
Prior art keywords: scanter; image; reference control; automatic reference; automatic
Prior art date: 1988-10-27
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

DE68916011T

Other languages

English (en)

Other versions

DE68916011T2 (de

Inventor

Martin Potucek

Mark Stefanik

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.)

Eastman Kodak Co

Original Assignee

Eastman Kodak Co

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.)

1988-10-27

Filing date

1989-10-25

Publication date

1994-07-14

1989-10-25 Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co

1994-07-14 Application granted granted Critical

1994-07-14 Publication of DE68916011D1 publication Critical patent/DE68916011D1/de

1995-01-05 Publication of DE68916011T2 publication Critical patent/DE68916011T2/de

2009-10-26 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
- H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture

DE68916011T 1988-10-27 1989-10-25 Automatische referenzregelung für bildabtaster. Expired - Fee Related DE68916011T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US07/263,461 US5267053A (en)	1988-10-27	1988-10-27	Automatic reference control for image scanners
PCT/US1989/004802 WO1990004900A1 (en)	1988-10-27	1989-10-25	Automatic reference control for image scanners

Publications (2)

Publication Number	Publication Date
DE68916011D1 true DE68916011D1 (de)	1994-07-14
DE68916011T2 DE68916011T2 (de)	1995-01-05

Family

ID=23001881

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68916011T Expired - Fee Related DE68916011T2 (de)	1988-10-27	1989-10-25	Automatische referenzregelung für bildabtaster.

Country Status (5)

Country	Link
US (1)	US5267053A (de)
EP (1)	EP0396708B1 (de)
JP (1)	JPH03501916A (de)
DE (1)	DE68916011T2 (de)
WO (1)	WO1990004900A1 (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE69118217T2 (de) *	1990-01-25	1996-08-22	Hewlett Packard Co	Verfahren und Vorrichtung zur Ausstattung eines Dokumentenlesers mit Belichtungskompensation
US5278674A (en) *	1990-01-25	1994-01-11	Hewlett-Packard Company	Method and apparatus for providing illumination compensation in a document scanner
US5424537A (en) *	1990-08-13	1995-06-13	Howtek, Inc.	Calibrated color scanner
JPH0563978A (ja) *	1991-08-30	1993-03-12	Toshiba Corp	画像読取装置
US5915049A (en) *	1992-02-25	1999-06-22	Pfu Limited	Binarization system for an image scanner
EP0581971B1 (de) *	1992-02-25	1999-08-25	Pfu Limited	Bildabtastanordnung
US5625718A (en) *	1992-02-25	1997-04-29	Pfu Limited	White level setting system for an image scanner
US5453852A (en) *	1992-03-19	1995-09-26	Pfu Limited	Paper feed roller structure for image reading apparatus
JPH06189130A (ja) *	1992-12-16	1994-07-08	Fuji Xerox Co Ltd	画像処理装置
US5519441A (en) *	1993-07-01	1996-05-21	Xerox Corporation	Apparatus and method for correcting offset and gain drift present during communication of data
JPH07298007A (ja) *	1994-04-22	1995-11-10	Fujitsu Ltd	画像読取装置及び画像読取方法及び白レベル補正方法及び白レベル生成方法
JP3091084B2 (ja) *	1994-06-22	2000-09-25	シャープ株式会社	信号処理回路
JP3525500B2 (ja) *	1994-07-26	2004-05-10	ミノルタ株式会社	固体撮像装置
US6038038A (en) *	1994-08-24	2000-03-14	Xerox Corporation	Method for determining offset and gain correction for a light sensitive sensor
US5563723A (en) *	1994-08-31	1996-10-08	Eastman Kodak Company	Method of calibration of image scanner signal processing circuits
US5726771A (en) *	1994-10-31	1998-03-10	Hewlett-Packard Company	System and method for optimizing tonal resolution in an optical scanner
JP3147171B2 (ja) *	1995-09-14	2001-03-19	ハイデルベルガードルツクマシーネンアクチエンゲゼルシヤフト	白調整方法
KR100306419B1 (en) *	1997-11-29	2001-08-09	Samsung Electronics Co Ltd	Method for correcting shading of shuttle scanner
TW385605B (en) *	1998-05-20	2000-03-21	Mustek Systems Inc	A method applied to image scanning device for gaining vertical amplification errors
JP4097800B2 (ja)	1998-09-07	2008-06-11	株式会社東芝	画像処理方法および画像処理装置
US6462772B1 (en)	1998-12-23	2002-10-08	Eastman Kodak Company	Method of calibrating image scanning apparatus of a photographic film scanner
US6249358B1 (en)	1998-12-23	2001-06-19	Eastman Kodak Company	Method of scanning photographic film images using selectively determined system response gain calibration
US6327047B1 (en) *	1999-01-22	2001-12-04	Electronics For Imaging, Inc.	Automatic scanner calibration
US6690420B1 (en) *	1999-02-05	2004-02-10	Syscan, Inc.	Integrated circuit architecture of contact image sensor for generating binary images
US6304826B1 (en) *	1999-02-05	2001-10-16	Syscan, Inc.	Self-calibration method and circuit architecture of image sensor
GB9906765D0 (en) *	1999-03-25	1999-05-19	Colour Valid Limited	Colour Monitoring
US7053941B1 (en) *	1999-08-19	2006-05-30	Canon Kabushiki Kaisha	Image input apparatus
US7064781B1 (en) *	1999-12-17	2006-06-20	Xerox Corporation	Apparatus and methods of calibrating pixel off set and pixel gain using digitial hardware
JP3885987B2 (ja) *	2000-05-18	2007-02-28	株式会社リコー	画像読取装置および画像形成装置
FR2815502B1 (fr) *	2000-10-13	2002-12-13	Commissariat Energie Atomique	Dispositif de detection d'un flux photonique a balayage autoadaptatif
US20020140996A1 (en) *	2001-04-02	2002-10-03	Spears Kurt E.	Optical image scanner using pre-scan and post-scan compensation for illumination nonuniformity
US7233418B2 (en) *	2001-05-15	2007-06-19	Hewlett-Packard Development Company, L.P.	Calibration method for quick scanning starts
AUPS058702A0 (en) *	2002-02-15	2002-03-14	Proteome Systems Intellectual Property Pty Ltd	Method for locating the coordinates of an object on a flat bed scanner or the like
KR100579513B1 (ko) *	2004-07-29	2006-05-15	삼성전자주식회사	스캐너 및 스캐닝 유닛의 위치제어방법
US7889251B1 (en) *	2005-06-08	2011-02-15	National Semiconductor Corporation	Method and device for white level calibration

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3379826A (en) *	1965-05-05	1968-04-23	Sylvania Electric Prod	Video processing system providing correction for changes in the light source intensity and for light fluctuations due to different page reflectivities
US4216503A (en) *	1979-03-26	1980-08-05	Xerox Corporation	Signal restoration and gain control for image viewing devices
JPS5660165A (en) *	1979-10-20	1981-05-23	Canon Inc	Picture reader
US4329717A (en) *	1980-02-11	1982-05-11	Exxon Research & Engineering Co.	Facsimile method and apparatus for setting white level
US4408231A (en) *	1981-07-31	1983-10-04	International Business Machines Corporation	Method and apparatus for calibrating a linear array scanning system
US4486781A (en) *	1982-04-19	1984-12-04	Xerox Corporation	Video signal white level corrector
US4623934A (en) *	1983-11-16	1986-11-18	Rockwell International Corporation	AGC update apparatus and method of using same
JPS60216667A (ja) *	1984-04-11	1985-10-30	Sharp Corp	画像読取装置のｃｃｄセンサ出力回路
JPS6153868A (ja) *	1984-08-24	1986-03-17	Dainippon Screen Mfg Co Ltd	画像走査信号処理におけるキャリブレーション装置
JPS61136377A (ja) *	1984-12-06	1986-06-24	Ricoh Co Ltd	スキヤナ−装置
JPS62293384A (ja) *	1986-06-11	1987-12-19	Toshiba Corp	画像入力装置
JPH0834543B2 (ja) *	1986-06-30	1996-03-29	株式会社リコー	スキャナ
JPH06101791B2 (ja) *	1986-08-15	1994-12-12	コニカ株式会社	ノイズの影響を防止したシエ−デイング補正方法及びその装置

1988
- 1988-10-27 US US07/263,461 patent/US5267053A/en not_active Expired - Lifetime
1989
- 1989-10-25 EP EP89912601A patent/EP0396708B1/de not_active Expired - Lifetime
- 1989-10-25 WO PCT/US1989/004802 patent/WO1990004900A1/en active IP Right Grant
- 1989-10-25 JP JP1511605A patent/JPH03501916A/ja active Pending
- 1989-10-25 DE DE68916011T patent/DE68916011T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
WO1990004900A1 (en)	1990-05-03
DE68916011T2 (de)	1995-01-05
EP0396708B1 (de)	1994-06-08
EP0396708A1 (de)	1990-11-14
JPH03501916A (ja)	1991-04-25
US5267053A (en)	1993-11-30

Legal Events

Date	Code	Title	Description
1995-07-06	8364	No opposition during term of opposition
2001-12-13	8327	Change in the person/name/address of the patent owner	Owner name: NEXPRESS SOLUTIONS LLC, ROCHESTER, N.Y., US
2001-12-13	8328	Change in the person/name/address of the agent	Free format text: FEY, H., DIPL.-PHYS., PAT.-ANW., 69115 HEIDELBERG
2006-03-23	8327	Change in the person/name/address of the patent owner	Owner name: EASTMAN KODAK CO., ROCHESTER, N.Y., US
2006-03-23	8328	Change in the person/name/address of the agent	Representative=s name: LAUERWALD, J., DIPL.-PHYS., PAT.-ANW., 24214 GETTO
2007-08-23	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
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NO863264D0 (no)	1986-08-13	Styreanordning for prosjektil.
DE68923126D1 (de)	1995-07-27	Automatisches Programmiersystem.
DE69018542T2 (de)	1996-01-25	Steuersystem für Hauptspeicher.
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DE69015412T2 (de)	1995-05-11	Farbtonsteuerung für Farbvideosysteme.
FI890301A (fi)	1989-07-23	Automatiskt flissaoll.
IT8383614A0 (it)	1983-05-04	Dispositivo di comando automatico.
NO822333L (no)	1984-01-03	Automatisk styringssystem.