DE69841881D1 - System zum Verhindern von Papierschrägeinzug sowie Selbststartsystem für Dokumentabtastgeräte - Google Patents

System zum Verhindern von Papierschrägeinzug sowie Selbststartsystem für Dokumentabtastgeräte

Info

Publication number
DE69841881D1
DE69841881D1 DE69841881T DE69841881T DE69841881D1 DE 69841881 D1 DE69841881 D1 DE 69841881D1 DE 69841881 T DE69841881 T DE 69841881T DE 69841881 T DE69841881 T DE 69841881T DE 69841881 D1 DE69841881 D1 DE 69841881D1
Authority
DE
Germany
Prior art keywords
self
scanning devices
skew
document scanning
paper skew
Prior art date
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
DE69841881T
Other languages
English (en)
Inventor
Jean-Marie Gatto
Courssou Thierry Brunet De
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.)
International Game Technology
Original Assignee
Cyberscan Technology 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.)
Filing date
Publication date
Application filed by Cyberscan Technology Inc filed Critical Cyberscan Technology Inc
Application granted granted Critical
Publication of DE69841881D1 publication Critical patent/DE69841881D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00684—Object of the detection
    • H04N1/00702—Position
    • 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00684—Object of the detection
    • H04N1/00708—Size or dimensions
    • H04N1/0071—Width
    • 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00742—Detection methods
    • H04N1/0075—Detecting a change in reflectivity
    • H04N1/00753—Detecting a change in reflectivity of a sheet relative to a particular backgroud
    • 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00763—Action taken as a result of detection
    • H04N1/00774—Adjusting or controlling
    • H04N1/00782—Initiating operations
    • 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00785—Correcting the position of a sheet before scanning
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/047—Detection, control or error compensation of scanning velocity or position
    • H04N1/0473—Detection, control or error compensation of scanning velocity or position in subscanning direction, e.g. picture start or line-to-line synchronisation
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
    • H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
    • H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04703—Detection of scanning velocity or position using the scanning elements as detectors, e.g. by performing a prescan
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04732—Detecting at infrequent intervals, e.g. once or twice per line for main-scan control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04737—Detection of scanning velocity or position by detecting the scanned medium directly, e.g. a leading edge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04756—Control or error compensation of scanning position or velocity by controlling the position or movement of the sheet, the sheet support or the photoconductive surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Image Input (AREA)
  • Facsimiles In General (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Controlling Sheets Or Webs (AREA)
DE69841881T 1997-07-31 1998-07-28 System zum Verhindern von Papierschrägeinzug sowie Selbststartsystem für Dokumentabtastgeräte Expired - Lifetime DE69841881D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/904,337 US6034784A (en) 1997-07-31 1997-07-31 Anti-skew auto-start system for document scanners

Publications (1)

Publication Number Publication Date
DE69841881D1 true DE69841881D1 (de) 2010-10-21

Family

ID=25418966

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69841881T Expired - Lifetime DE69841881D1 (de) 1997-07-31 1998-07-28 System zum Verhindern von Papierschrägeinzug sowie Selbststartsystem für Dokumentabtastgeräte

Country Status (4)

Country Link
US (1) US6034784A (de)
EP (1) EP0895404B1 (de)
AT (1) ATE480952T1 (de)
DE (1) DE69841881D1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793986B1 (fr) * 1999-05-20 2001-06-22 Sagem Lecteur optique de documents
US6552828B1 (en) * 1999-07-01 2003-04-22 Cyberscan Technology, Inc. Precision deep input guide clip for document scanners and document scanner incorporating same
JP3740910B2 (ja) * 1999-09-29 2006-02-01 コニカミノルタホールディングス株式会社 画像処理方法および画像処理装置
US6912325B2 (en) * 2000-05-17 2005-06-28 Eastman Kodak Company Real time electronic registration of scanned documents
US6732920B2 (en) * 2001-02-14 2004-05-11 Cyberscan Technology, Inc. Compact document scanner with branding
US7133573B2 (en) * 2002-11-26 2006-11-07 Eastman Kodak Company Document skew accommodation
TWI282687B (en) * 2003-05-20 2007-06-11 Benq Corp Scanner that can generate uniform light
JP4131206B2 (ja) * 2003-07-29 2008-08-13 セイコーエプソン株式会社 媒体読み取り装置及び媒体読み取り方法
JP4696036B2 (ja) * 2006-08-07 2011-06-08 キヤノン株式会社 シート搬送装置及び画像形成装置
EP2136692B1 (de) * 2007-03-16 2013-06-26 LG Electronics Inc. Staubabscheidevorrichtung eines staubsaugers
TW201038461A (en) * 2009-04-23 2010-11-01 Avision Inc Automatic document feeder and scanning apparatus having device for detecting document speed
EP2449531B1 (de) 2009-07-02 2017-12-20 Hewlett-Packard Development Company, L.P. Versatzdetektion
JP6094414B2 (ja) 2012-08-31 2017-03-15 セイコーエプソン株式会社 媒体送り装置、媒体送り装置の制御方法および記録装置
US11140296B2 (en) * 2019-11-11 2021-10-05 Canon Kabushiki Kaisha Image reading apparatus

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568074A (en) * 1980-06-30 1986-02-04 Ricoh Company, Ltd. Automatic sheet feeding apparatus
JPS57160651A (en) * 1981-03-31 1982-10-04 Ricoh Co Ltd Recording device
US4621801A (en) * 1984-12-06 1986-11-11 Xerox Corporation Document edge registration system
JPH01242346A (ja) * 1988-03-24 1989-09-27 Minolta Camera Co Ltd シート材検出装置
US5043771A (en) * 1988-05-24 1991-08-27 Konica Corporation Image forming apparatus having a controller for controlling the registration rollers
US4881729A (en) * 1988-06-06 1989-11-21 Xerox Corporation Recirculating document handler with integral SADH
US4849788A (en) * 1988-06-16 1989-07-18 Xerox Corporation Automatic dual mode document registration and edge guide
JPH02212174A (ja) * 1989-02-14 1990-08-23 Brother Ind Ltd 両面記録装置
US5240241A (en) * 1990-10-31 1993-08-31 Canon Kabushiki Kaisha Sheet feeding apparatus
US5648808A (en) * 1991-06-10 1997-07-15 Canon Kabushiki Kaisha Automatic sheet feeding apparatus
US5517332A (en) * 1993-10-25 1996-05-14 Barry; Michael R. Document scanner having one-piece housing for holding an image sensor, drive roller and document sensors in close alignment with each other
US5818976A (en) * 1993-10-25 1998-10-06 Visioneer, Inc. Method and apparatus for document skew and size/shape detection

Also Published As

Publication number Publication date
EP0895404A2 (de) 1999-02-03
EP0895404A3 (de) 2000-01-19
EP0895404B1 (de) 2010-09-08
US6034784A (en) 2000-03-07
ATE480952T1 (de) 2010-09-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: IGT CORP., RENO, NEV., US