JPS642313B2 - - Google Patents

Info

Publication number
JPS642313B2
JPS642313B2 JP56021236A JP2123681A JPS642313B2 JP S642313 B2 JPS642313 B2 JP S642313B2 JP 56021236 A JP56021236 A JP 56021236A JP 2123681 A JP2123681 A JP 2123681A JP S642313 B2 JPS642313 B2 JP S642313B2
Authority
JP
Japan
Prior art keywords
document
scanning direction
scanning
sub
image
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
Application number
JP56021236A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57135573A (en
Inventor
Tadashi Yoshida
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 JP56021236A priority Critical patent/JPS57135573A/ja
Priority to US06/339,282 priority patent/US4439790A/en
Publication of JPS57135573A publication Critical patent/JPS57135573A/ja
Priority to US06/543,907 priority patent/US4554592A/en
Publication of JPS642313B2 publication Critical patent/JPS642313B2/ja
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
    • H04N1/00708—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
    • H04N1/00729—Detection means
    • H04N1/00734—Optical detectors
    • H04N1/00737—Optical detectors using the scanning elements as detectors
    • 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
    • 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
    • H04N1/00779—Adjusting settings, e.g. mode, feeding rate or type of paper
    • 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
    • H04N1/38—Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures
    • 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
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/333—Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307—Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33314—Mode signalling or mode changing; Handshaking therefor of a particular mode of reading or reproducing mode
    • H04N2201/33321—Image or page size, e.g. A3, A4

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Editing Of Facsimile Originals (AREA)
JP56021236A 1981-01-23 1981-02-16 Picture reader Granted JPS57135573A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56021236A JPS57135573A (en) 1981-02-16 1981-02-16 Picture reader
US06/339,282 US4439790A (en) 1981-01-23 1982-01-13 Image forming apparatus
US06/543,907 US4554592A (en) 1981-01-23 1983-10-20 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56021236A JPS57135573A (en) 1981-02-16 1981-02-16 Picture reader

Publications (2)

Publication Number Publication Date
JPS57135573A JPS57135573A (en) 1982-08-21
JPS642313B2 true JPS642313B2 (US06623731-20030923-C00012.png) 1989-01-17

Family

ID=12049401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56021236A Granted JPS57135573A (en) 1981-01-23 1981-02-16 Picture reader

Country Status (1)

Country Link
JP (1) JPS57135573A (US06623731-20030923-C00012.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152323B (en) * 1983-11-25 1987-10-07 Canon Kk An image processing apparatus
DE3448404C2 (de) * 1983-11-25 1995-08-31 Canon Kk Bildverarbeitungseinrichtung
DE3448469C2 (de) * 1983-11-25 1994-10-20 Canon Kk Bildverarbeitungssystem
JPH02311083A (ja) * 1989-05-26 1990-12-26 Ricoh Co Ltd 原稿読取装置
JPH085468Y2 (ja) * 1989-10-04 1996-02-14 株式会社リコー 原稿サイズ検知装置
JPH08149364A (ja) * 1994-11-22 1996-06-07 Nikon Corp 画像入力装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143811Y2 (US06623731-20030923-C00012.png) * 1971-05-07 1976-10-23
US4171744A (en) * 1977-05-17 1979-10-23 Pitney-Bowes, Inc. Document classifier
JPS604974B2 (ja) * 1977-05-30 1985-02-07 キヤノン株式会社 サイズ検知装置
JPS5454626A (en) * 1977-10-11 1979-05-01 Ricoh Co Ltd Recognizing method for pattern on original document
JPS592842B2 (ja) * 1977-10-19 1984-01-20 株式会社東芝 寸法測定装置
JPS5473026A (en) * 1977-11-22 1979-06-12 Ricoh Co Ltd Copying machine
JPS5483438A (en) * 1977-12-15 1979-07-03 Ricoh Co Ltd Original detecting method
JPS5555658A (en) * 1978-09-22 1980-04-23 Canon Inc Copy unit
JPS5583368A (en) * 1978-12-20 1980-06-23 Toshiba Corp Facsimile scanning transmission system
JPS55166378A (en) * 1979-06-14 1980-12-25 Canon Inc Copy recorder

Also Published As

Publication number Publication date
JPS57135573A (en) 1982-08-21

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