JPS6322112B2 - - Google Patents

Info

Publication number
JPS6322112B2
JPS6322112B2 JP54169921A JP16992179A JPS6322112B2 JP S6322112 B2 JPS6322112 B2 JP S6322112B2 JP 54169921 A JP54169921 A JP 54169921A JP 16992179 A JP16992179 A JP 16992179A JP S6322112 B2 JPS6322112 B2 JP S6322112B2
Authority
JP
Japan
Prior art keywords
scanning
document
semiconductor laser
circuit
photoelectric detector
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
JP54169921A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5693384A (en
Inventor
Yutaka Kaneko
Harumi Nakatsuka
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16992179A priority Critical patent/JPS5693384A/ja
Publication of JPS5693384A publication Critical patent/JPS5693384A/ja
Publication of JPS6322112B2 publication Critical patent/JPS6322112B2/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)
  • Facsimile Scanning Arrangements (AREA)
  • Semiconductor Lasers (AREA)
JP16992179A 1979-12-26 1979-12-26 Semiconductor laser scanner Granted JPS5693384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16992179A JPS5693384A (en) 1979-12-26 1979-12-26 Semiconductor laser scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16992179A JPS5693384A (en) 1979-12-26 1979-12-26 Semiconductor laser scanner

Publications (2)

Publication Number Publication Date
JPS5693384A JPS5693384A (en) 1981-07-28
JPS6322112B2 true JPS6322112B2 (en, 2012) 1988-05-10

Family

ID=15895414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16992179A Granted JPS5693384A (en) 1979-12-26 1979-12-26 Semiconductor laser scanner

Country Status (1)

Country Link
JP (1) JPS5693384A (en, 2012)

Also Published As

Publication number Publication date
JPS5693384A (en) 1981-07-28

Similar Documents

Publication Publication Date Title
US5331428A (en) Automatic offset and gain control in a document scanner
US4831247A (en) Light beam scanning apparatus employing rotating polygon mirror
JPH04365264A (ja) 原稿読取装置
US4255028A (en) Focus detecting device in camera
JPH07177354A (ja) 感光素子を有するスキャナー
JPS6322112B2 (en, 2012)
RU2154916C2 (ru) Устройство и способ для сканирования данных изображения в системе обработки изображения
JPS6184967A (ja) スライスレベル決定回路
JPH0354509B2 (en, 2012)
JPH10294891A (ja) 画像入力装置
JPH09238237A (ja) 画像読取り装置及び画像再生装置
JPS62246010A (ja) 光ビ−ム走査装置
JPH08146328A (ja) レーザ記録装置および画像読取装置
JPH0548461B2 (en, 2012)
JPS61256866A (ja) デジタル画像処理方法
EP0569063A1 (en) Automatic offset and gain control in a document scanner
JPS58156260A (ja) 画像読取り装置
JPS59223060A (ja) 原稿読取装置
JPS59128871A (ja) 画像読取装置
JPS6041364A (ja) 光学的読み取り装置
JP2727712B2 (ja) 画像入力装置の画像信号処理方法
JP2627219B2 (ja) 画像読取装置
JPS6364945B2 (en, 2012)
JP2554892B2 (ja) 光ビーム走査装置
JPS63245176A (ja) 画像読み取り装置