JP7455559B2 - 画像読取装置 - Google Patents

画像読取装置 Download PDF

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Publication number
JP7455559B2
JP7455559B2 JP2019215854A JP2019215854A JP7455559B2 JP 7455559 B2 JP7455559 B2 JP 7455559B2 JP 2019215854 A JP2019215854 A JP 2019215854A JP 2019215854 A JP2019215854 A JP 2019215854A JP 7455559 B2 JP7455559 B2 JP 7455559B2
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JP
Japan
Prior art keywords
reading
resolution
image
correction value
document
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.)
Active
Application number
JP2019215854A
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English (en)
Japanese (ja)
Other versions
JP2021087148A (ja
JP2021087148A5 (enExample
Inventor
聡 戸塚
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
Priority to JP2019215854A priority Critical patent/JP7455559B2/ja
Priority to US17/071,723 priority patent/US10999461B1/en
Publication of JP2021087148A publication Critical patent/JP2021087148A/ja
Publication of JP2021087148A5 publication Critical patent/JP2021087148A5/ja
Priority to JP2024037258A priority patent/JP2024056097A/ja
Application granted granted Critical
Publication of JP7455559B2 publication Critical patent/JP7455559B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • H04N1/00795—Reading arrangements
    • H04N1/00798—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity
    • H04N1/00814—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity according to a detected condition or state of the reading apparatus, e.g. temperature
    • 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
    • H04N1/00976—Arrangements for regulating environment, e.g. removing static electricity
    • H04N1/00997—Light control, e.g. shielding from ambient light or preventing light leakage
    • 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
    • H04N1/00795—Reading arrangements
    • H04N1/00798—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity
    • H04N1/00801—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity according to characteristics of the original
    • H04N1/00803—Presence or absence of information
    • 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
    • H04N1/00795—Reading arrangements
    • H04N1/00798—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity
    • H04N1/00801—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity according to characteristics of the original
    • H04N1/00806—According to type of the original, e.g. colour paper or transparency, or reading a plurality of different types of original
    • 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
    • H04N1/00795—Reading arrangements
    • H04N1/00798—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity
    • H04N1/00819—Self-calibrating reading means

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Image Input (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2019215854A 2019-11-28 2019-11-28 画像読取装置 Active JP7455559B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019215854A JP7455559B2 (ja) 2019-11-28 2019-11-28 画像読取装置
US17/071,723 US10999461B1 (en) 2019-11-28 2020-10-15 Image reading apparatus
JP2024037258A JP2024056097A (ja) 2019-11-28 2024-03-11 画像読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019215854A JP7455559B2 (ja) 2019-11-28 2019-11-28 画像読取装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2024037258A Division JP2024056097A (ja) 2019-11-28 2024-03-11 画像読取装置

Publications (3)

Publication Number Publication Date
JP2021087148A JP2021087148A (ja) 2021-06-03
JP2021087148A5 JP2021087148A5 (enExample) 2022-11-29
JP7455559B2 true JP7455559B2 (ja) 2024-03-26

Family

ID=75689679

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2019215854A Active JP7455559B2 (ja) 2019-11-28 2019-11-28 画像読取装置
JP2024037258A Pending JP2024056097A (ja) 2019-11-28 2024-03-11 画像読取装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2024037258A Pending JP2024056097A (ja) 2019-11-28 2024-03-11 画像読取装置

Country Status (2)

Country Link
US (1) US10999461B1 (enExample)
JP (2) JP7455559B2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7533357B2 (ja) 2021-05-24 2024-08-14 トヨタ自動車株式会社 車両および充電システム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010035136A (ja) 2008-07-02 2010-02-12 Ricoh Co Ltd 画像読取装置、画像形成装置及び画像読取方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11146199A (ja) * 1997-11-10 1999-05-28 Canon Inc 画像読取装置および方法
US6657748B1 (en) * 1998-05-27 2003-12-02 Canon Kabushiki Kaisha Image reading apparatus, image reading method, and storage medium
JP2003230007A (ja) * 2002-01-31 2003-08-15 Canon Inc 画像読取装置、その制御方法、及び制御プログラム
US8587843B2 (en) 2007-05-07 2013-11-19 Ricoh Company, Ltd. Apparatus and a method for controlling a light source used for image reading
JP4868261B2 (ja) * 2009-06-01 2012-02-01 ブラザー工業株式会社 画像読取装置
JP5440582B2 (ja) * 2011-09-30 2014-03-12 ブラザー工業株式会社 画像読取装置および原稿読取方法
JP5929281B2 (ja) * 2012-02-13 2016-06-01 セイコーエプソン株式会社 画像読取装置、画像読取方法及びそのプログラム
JP2018191206A (ja) * 2017-05-10 2018-11-29 キヤノン株式会社 画像読取装置、原稿サイズ検知方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010035136A (ja) 2008-07-02 2010-02-12 Ricoh Co Ltd 画像読取装置、画像形成装置及び画像読取方法

Also Published As

Publication number Publication date
US10999461B1 (en) 2021-05-04
JP2024056097A (ja) 2024-04-19
JP2021087148A (ja) 2021-06-03

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