DE3839302A1 - Lesevorrichtung - Google Patents

Lesevorrichtung

Info

Publication number
DE3839302A1
DE3839302A1 DE3839302A DE3839302A DE3839302A1 DE 3839302 A1 DE3839302 A1 DE 3839302A1 DE 3839302 A DE3839302 A DE 3839302A DE 3839302 A DE3839302 A DE 3839302A DE 3839302 A1 DE3839302 A1 DE 3839302A1
Authority
DE
Germany
Prior art keywords
document
light source
reading device
light
information
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.)
Granted
Application number
DE3839302A
Other languages
German (de)
English (en)
Other versions
DE3839302C2 (OSRAM
Inventor
Yuji Houjiyou
Hiroyuki Hayasaki
Kyoichi Yonezawa
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of DE3839302A1 publication Critical patent/DE3839302A1/de
Application granted granted Critical
Publication of DE3839302C2 publication Critical patent/DE3839302C2/de
Granted 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
    • H04N1/00687—Presence or absence
    • 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
    • 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
    • H04N1/00748—Detecting edges, e.g. of a stationary sheet
    • 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
    • H04N1/00769—Comparing, e.g. with threshold
    • 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
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0422—Media holders, covers, supports, backgrounds; Arrangements to facilitate placing of the medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Image Input (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
DE3839302A 1987-11-20 1988-11-21 Lesevorrichtung Granted DE3839302A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62294857A JPH01136460A (ja) 1987-11-20 1987-11-20 読取り装置

Publications (2)

Publication Number Publication Date
DE3839302A1 true DE3839302A1 (de) 1989-06-08
DE3839302C2 DE3839302C2 (OSRAM) 1993-02-25

Family

ID=17813151

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3839302A Granted DE3839302A1 (de) 1987-11-20 1988-11-21 Lesevorrichtung

Country Status (4)

Country Link
US (1) US4929844A (OSRAM)
JP (1) JPH01136460A (OSRAM)
DE (1) DE3839302A1 (OSRAM)
SE (1) SE469993B (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443188A1 (de) * 1994-12-05 1996-06-13 Koerperich Andreas Anlegehilfe für eine Vorlage an ein Kopiergerät
DE19645622A1 (de) * 1996-11-06 1998-05-07 Thomas Dipl Ing Schulz Positioniereinrichtung für optische Vervielfältigungssysteme

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091654A (en) * 1990-08-28 1992-02-25 Xerox Corporation Method of automatically setting document registration and locating calibration strip
US5475466A (en) * 1993-02-02 1995-12-12 Nikon Corporation Camera having target follow up function
US5500725A (en) * 1993-09-28 1996-03-19 Minolta Co., Ltd. Original document reading device capable of automatically detecting the size of an original document
US6952290B2 (en) 2000-03-30 2005-10-04 Canon Kabushiki Kaisha Sensing of original size
US7554698B2 (en) * 2000-09-15 2009-06-30 Sharp Laboratories Of America, Inc. Robust document boundary determination
US7102786B2 (en) * 2000-10-05 2006-09-05 Matsushita Electric Industrial Co., Ltd. Image reading apparatus and processing apparatus
US6987880B2 (en) * 2001-03-22 2006-01-17 Sharp Laboratories Of America, Inc. Efficient document boundary determination
US7161706B2 (en) * 2001-03-30 2007-01-09 Sharp Laboratories Of America, Inc. System for improving digital coplers and multifunction peripheral devices
JP3687634B2 (ja) * 2002-07-26 2005-08-24 ブラザー工業株式会社 プリンタ
US6900449B2 (en) * 2003-01-15 2005-05-31 Lexmark International Inc. Media type sensing method for an imaging apparatus
US7205561B2 (en) * 2004-03-29 2007-04-17 Lexmark International, Inc. Media sensor apparatus using a two component media sensor for media absence detection
JP4882451B2 (ja) * 2006-03-30 2012-02-22 凸版印刷株式会社 口腔内粘膜採取器
JP5473355B2 (ja) * 2008-03-18 2014-04-16 キヤノン株式会社 原稿読取装置
US9571684B1 (en) * 2015-12-16 2017-02-14 Lexmark International, Inc. Method of using a fiducial in determining two media types of different lengths used on a flatbed scanner
US10960690B2 (en) 2016-04-27 2021-03-30 Hewlett-Packard Development Company, L.P. Sheet fed device
US10582077B2 (en) * 2016-11-07 2020-03-03 Canon Finetech Nisca, Inc. Reading apparatus, determination method, and storage medium storing program
JP6869076B2 (ja) 2017-03-30 2021-05-12 キヤノン株式会社 画像読取装置
JP6569764B2 (ja) * 2018-04-05 2019-09-04 ブラザー工業株式会社 画像読取装置、コンピュータプログラムおよび方法
JP7115206B2 (ja) 2018-10-11 2022-08-09 株式会社リコー 原稿サイズ検出装置、画像読取装置、画像形成装置、及び原稿サイズ検出方法
JP7349914B2 (ja) * 2020-01-15 2023-09-25 シャープ株式会社 画像形成装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029304A1 (de) * 1979-08-01 1981-02-19 Konishiroku Photo Ind Vorrichtung zur bestimmung der groesse einer in einem kopiergeraet zu kopierenden vorlage
DE3336961A1 (de) * 1982-10-12 1984-04-12 Canon K.K., Tokyo Bildreproduktionseinrichtung
DE3507933A1 (de) * 1984-03-08 1985-09-19 Dainippon Screen Manufacturing Co., Ltd., Kyoto Bildaufnahmeeinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121367A (en) * 1981-01-20 1982-07-28 Canon Inc Method for reading color original
JPH0683371B2 (ja) * 1982-10-20 1994-10-19 キヤノン株式会社 情報読取り装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029304A1 (de) * 1979-08-01 1981-02-19 Konishiroku Photo Ind Vorrichtung zur bestimmung der groesse einer in einem kopiergeraet zu kopierenden vorlage
DE3336961A1 (de) * 1982-10-12 1984-04-12 Canon K.K., Tokyo Bildreproduktionseinrichtung
DE3507933A1 (de) * 1984-03-08 1985-09-19 Dainippon Screen Manufacturing Co., Ltd., Kyoto Bildaufnahmeeinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443188A1 (de) * 1994-12-05 1996-06-13 Koerperich Andreas Anlegehilfe für eine Vorlage an ein Kopiergerät
DE19645622A1 (de) * 1996-11-06 1998-05-07 Thomas Dipl Ing Schulz Positioniereinrichtung für optische Vervielfältigungssysteme

Also Published As

Publication number Publication date
JPH01136460A (ja) 1989-05-29
DE3839302C2 (OSRAM) 1993-02-25
SE8804151L (sv) 1989-05-21
US4929844A (en) 1990-05-29
SE8804151D0 (sv) 1988-11-17
SE469993B (sv) 1993-10-18

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee