DE69931694D1 - Bildlesevorrichtung - Google Patents

Bildlesevorrichtung

Info

Publication number
DE69931694D1
DE69931694D1 DE69931694T DE69931694T DE69931694D1 DE 69931694 D1 DE69931694 D1 DE 69931694D1 DE 69931694 T DE69931694 T DE 69931694T DE 69931694 T DE69931694 T DE 69931694T DE 69931694 D1 DE69931694 D1 DE 69931694D1
Authority
DE
Germany
Prior art keywords
image reading
reading device
image
reading
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
DE69931694T
Other languages
English (en)
Other versions
DE69931694T2 (de
Inventor
Maruta Hidekazu
Kusaka Kensaku
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Publication of DE69931694D1 publication Critical patent/DE69931694D1/de
Application granted granted Critical
Publication of DE69931694T2 publication Critical patent/DE69931694T2/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
    • H04N1/40—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
DE69931694T 1998-06-11 1999-06-10 Bildlesevorrichtung Expired - Lifetime DE69931694T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16363898A JP3565479B2 (ja) 1998-06-11 1998-06-11 画像読取装置
JP16363898 1998-06-11

Publications (2)

Publication Number Publication Date
DE69931694D1 true DE69931694D1 (de) 2006-07-20
DE69931694T2 DE69931694T2 (de) 2007-01-11

Family

ID=15777753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69931694T Expired - Lifetime DE69931694T2 (de) 1998-06-11 1999-06-10 Bildlesevorrichtung

Country Status (4)

Country Link
US (1) US6816623B1 (de)
EP (1) EP0964569B1 (de)
JP (1) JP3565479B2 (de)
DE (1) DE69931694T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3631100B2 (ja) 2000-04-27 2005-03-23 キヤノン株式会社 画像読取装置、及び画像読取方法
JP4224198B2 (ja) * 2000-10-27 2009-02-12 株式会社リコー 画像読取装置および複写機
JP2004217592A (ja) * 2003-01-16 2004-08-05 Mitsubishi Chemicals Corp イミノスチルベン系化合物、電荷輸送材料、有機電界発光素子材料、および有機電界発光素子
KR100464545B1 (ko) * 2003-04-15 2005-01-03 삼성전자주식회사 화상 스캐닝 장치 및 그의 쉐이딩 보정 방법
JP4270249B2 (ja) * 2006-08-31 2009-05-27 セイコーエプソン株式会社 画像読み取り装置、画像読み取り方法およびプログラム
JP2008118216A (ja) * 2006-10-31 2008-05-22 Brother Ind Ltd 画像処理装置および画像処理プログラム
JP5298928B2 (ja) * 2008-07-02 2013-09-25 株式会社リコー 画像読取装置、画像形成装置及び画像読取方法
JP4900433B2 (ja) * 2009-07-27 2012-03-21 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置および方法
JP5652063B2 (ja) 2010-09-02 2015-01-14 株式会社リコー 画像読取装置、画像形成装置及びシェーディング補正方法
WO2017169508A1 (ja) * 2016-03-28 2017-10-05 コニカミノルタ株式会社 画像記録装置及び画像記録装置の制御方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677287A (en) * 1982-07-14 1987-06-30 Canon Kabushiki Kaisha Document reader with light source control
JPH0642713B2 (ja) 1984-09-17 1994-06-01 株式会社東芝 カラー画像入力装置
JPS631249A (ja) 1986-06-20 1988-01-06 Matsushita Electric Ind Co Ltd 画像読取装置
JP2502591B2 (ja) * 1987-05-13 1996-05-29 株式会社リコー 原稿位置検出装置
JPH01132275A (ja) 1987-11-18 1989-05-24 Matsushita Electric Ind Co Ltd シェーディング補正装置
US5032712A (en) 1988-10-19 1991-07-16 Canon Kabushiki Kaisha Signal accumulation image reading apparatus
JPH02198266A (ja) * 1989-01-27 1990-08-06 Toshiba Corp 画像形成装置
US5151796A (en) 1989-03-29 1992-09-29 Canon Kabushiki Kaisha Image reading apparatus having a D/A converter with a controllable output
JPH0335233A (ja) * 1989-06-30 1991-02-15 Toshiba Corp 画像形成装置
JPH04309064A (ja) * 1991-04-05 1992-10-30 Fuji Xerox Co Ltd 画像読取装置
JPH0698094A (ja) * 1992-09-14 1994-04-08 Toshiba Corp 画像形成装置
JPH08168003A (ja) * 1994-10-13 1996-06-25 Ricoh Co Ltd 画像形成装置
JPH0974465A (ja) * 1995-07-04 1997-03-18 Ricoh Co Ltd 原稿読取装置
JP3420413B2 (ja) * 1995-12-07 2003-06-23 キヤノン株式会社 画像読み取り装置及びその制御方法
JP3466855B2 (ja) * 1997-02-07 2003-11-17 株式会社リコー 画像読取装置
US6330083B1 (en) * 1997-05-28 2001-12-11 Minolta Co., Ltd. Image reading device performing light quantity detection and correction with timing corresponding to selected copying mode
JPH11122433A (ja) * 1997-10-09 1999-04-30 Ricoh Co Ltd 画像読取装置

Also Published As

Publication number Publication date
JPH11355570A (ja) 1999-12-24
EP0964569A2 (de) 1999-12-15
DE69931694T2 (de) 2007-01-11
US6816623B1 (en) 2004-11-09
EP0964569A3 (de) 2002-06-26
JP3565479B2 (ja) 2004-09-15
EP0964569B1 (de) 2006-06-07

Similar Documents

Publication Publication Date Title
DE69937177D1 (de) Bildlesevorrichtung
DE69939925D1 (de) Bildaufnahmegerät
DE19983266T1 (de) Bilderzeugungsgerät
DE69936801D1 (de) Aufzeichnungsvorrichtung
DE69830346D1 (de) Abbildungsgerät
DE69915721D1 (de) Bildverarbeitungsvorrichtung
DE69827305D1 (de) Bildaufnahmevorrichtung
DE69939195D1 (de) Bilderzeugungsvorrichtung
DE69920823D1 (de) Photographisches Gerät
DE69942004D1 (de) Bildaufnahmevorrichtung
DE69914545D1 (de) Bildaufnahmegerät
DE69921388D1 (de) Bildverarbeitungsvorrichtung
DE69838734D1 (de) Bilderzeugungsgerät
DE69902107D1 (de) Bildaufnahmegerät
DE69915901D1 (de) Bildverarbeitungsgerät
DE69901360D1 (de) Bildverarbeitungsgerät
DE69933531D1 (de) Bildaufnahmegerät
DE69838194D1 (de) Bildaufnahmevorrichtung
DE69727905D1 (de) Bildlesevorrichtung
DE69921739D1 (de) Bildaufzeichnungsgerät
DE69833849D1 (de) Bilderzeugungsgerät
DE19980667T1 (de) Bildlesevorrichtung
DE19980650T1 (de) Bildleseeinrichtung
DE69812061D1 (de) Bilderzeugungsgerät
DE69931694D1 (de) Bildlesevorrichtung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition