JPS5781773A - Picture reader - Google Patents

Picture reader

Info

Publication number
JPS5781773A
JPS5781773A JP55158470A JP15847080A JPS5781773A JP S5781773 A JPS5781773 A JP S5781773A JP 55158470 A JP55158470 A JP 55158470A JP 15847080 A JP15847080 A JP 15847080A JP S5781773 A JPS5781773 A JP S5781773A
Authority
JP
Japan
Prior art keywords
belt
reflected light
standard original
original
photodetecting
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
JP55158470A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0153539B2 (enrdf_load_stackoverflow
Inventor
Masaharu Tsukada
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 JP55158470A priority Critical patent/JPS5781773A/ja
Publication of JPS5781773A publication Critical patent/JPS5781773A/ja
Publication of JPH0153539B2 publication Critical patent/JPH0153539B2/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
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP55158470A 1980-11-11 1980-11-11 Picture reader Granted JPS5781773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55158470A JPS5781773A (en) 1980-11-11 1980-11-11 Picture reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55158470A JPS5781773A (en) 1980-11-11 1980-11-11 Picture reader

Publications (2)

Publication Number Publication Date
JPS5781773A true JPS5781773A (en) 1982-05-21
JPH0153539B2 JPH0153539B2 (enrdf_load_stackoverflow) 1989-11-14

Family

ID=15672440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55158470A Granted JPS5781773A (en) 1980-11-11 1980-11-11 Picture reader

Country Status (1)

Country Link
JP (1) JPS5781773A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594379A (ja) * 1982-06-30 1984-01-11 Fujitsu Ltd シエ−ジング補正装置
US5062144A (en) * 1988-04-06 1991-10-29 Dainippon Screen 303 1O. Ltd. Method of obtaining white reference data used for correcting non-uniformity in photoelectric cell array

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594379A (ja) * 1982-06-30 1984-01-11 Fujitsu Ltd シエ−ジング補正装置
US5062144A (en) * 1988-04-06 1991-10-29 Dainippon Screen 303 1O. Ltd. Method of obtaining white reference data used for correcting non-uniformity in photoelectric cell array

Also Published As

Publication number Publication date
JPH0153539B2 (enrdf_load_stackoverflow) 1989-11-14

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