DE3342129C2 - - Google Patents

Info

Publication number
DE3342129C2
DE3342129C2 DE3342129A DE3342129A DE3342129C2 DE 3342129 C2 DE3342129 C2 DE 3342129C2 DE 3342129 A DE3342129 A DE 3342129A DE 3342129 A DE3342129 A DE 3342129A DE 3342129 C2 DE3342129 C2 DE 3342129C2
Authority
DE
Germany
Prior art keywords
light source
ccd sensor
light
signal
brightness
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
DE3342129A
Other languages
German (de)
English (en)
Other versions
DE3342129A1 (de
Inventor
Yasuo Yokohama Jp Inoue
Masaharu Hitachi Jp Tadauchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3342129A1 publication Critical patent/DE3342129A1/de
Application granted granted Critical
Publication of DE3342129C2 publication Critical patent/DE3342129C2/de
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
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Heads (AREA)
DE19833342129 1982-11-25 1983-11-22 Einrichtung zum steuern eines ladungsgekoppelten sensors Granted DE3342129A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57205458A JPS5995769A (ja) 1982-11-25 1982-11-25 Ｃｃｄセンサ駆動装置

Publications (2)

Publication Number Publication Date
DE3342129A1 DE3342129A1 (de) 1984-05-30
DE3342129C2 true DE3342129C2 (enExample) 1988-03-03

Family

ID=16507207

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833342129 Granted DE3342129A1 (de) 1982-11-25 1983-11-22 Einrichtung zum steuern eines ladungsgekoppelten sensors

Country Status (3)

Country Link
US (1) US4634885A (enExample)
JP (1) JPS5995769A (enExample)
DE (1) DE3342129A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157176A (ja) * 1984-08-29 1986-03-24 Dainippon Screen Mfg Co Ltd 倍率可変制御方法
JPS61148959A (ja) * 1984-12-21 1986-07-07 Dainippon Screen Mfg Co Ltd 画像情報の読取り方法
JPS62214766A (ja) * 1986-03-15 1987-09-21 Toshiba Corp 原稿読取装置
US4948256A (en) * 1988-09-14 1990-08-14 Industrial Technology Research Institute Optical fiber type colorimeter
JPH02261254A (ja) * 1989-03-31 1990-10-24 Fuji Photo Film Co Ltd 電子コピー装置
JPH0732447B2 (ja) * 1989-05-16 1995-04-10 シャープ株式会社 読取装置
JP3130552B2 (ja) * 1990-06-25 2001-01-31 株式会社リコー 画像読取装置
US5406070A (en) * 1993-12-16 1995-04-11 International Business Machines Corporation Method and apparatus for scanning an object and correcting image data using concurrently generated illumination data
US6765700B1 (en) * 1998-08-20 2004-07-20 Canon Kabushiki Kaisha Method for detecting and controlling home position of image reader
US6950213B1 (en) 2000-12-20 2005-09-27 Cisco Systems, Inc. Fast method for fax encoded data conversion
US7133165B2 (en) * 2001-08-06 2006-11-07 Canon Kabushiki Kaisha Image reading device, method of controlling the same, control program, storage medium and image forming apparatus provided with the image reading device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721904B2 (enExample) * 1973-10-03 1982-05-10
JPS5918904B2 (ja) * 1974-10-18 1984-05-01 株式会社リコー イメ−ジセンサ−の感度調整方法
JPS5855712B2 (ja) * 1977-02-07 1983-12-10 松下電器産業株式会社 ファクシミリ走査方式
US4133008A (en) * 1977-03-14 1979-01-02 Rapicom Inc. Automatic illumination compensation circuit
JPS53141520A (en) * 1977-05-16 1978-12-09 Ricoh Co Ltd Picture scanning read system of semiconductor photo detector
JPS54130825A (en) * 1978-03-31 1979-10-11 Canon Inc Image scanner
JPS562780A (en) * 1979-06-22 1981-01-13 Iwatsu Electric Co Ltd Original reader
US4516174A (en) * 1980-03-10 1985-05-07 Ricoh Company, Ltd. Video signal regulating apparatus
JPS5795771A (en) * 1980-12-05 1982-06-14 Fuji Photo Film Co Ltd Solid-state image pickup device
US4479062A (en) * 1981-02-06 1984-10-23 Asahi Kogaku Kogyo Kabushiki Kaisha Photo-electric conversion device with accumulation time control
US4382267A (en) * 1981-09-24 1983-05-03 Rca Corporation Digital control of number of effective rows of two-dimensional charge-transfer imager array
US4396950A (en) * 1982-02-26 1983-08-02 Honeywell Inc. CCD Camera

Also Published As

Publication number Publication date
JPS5995769A (ja) 1984-06-01
US4634885A (en) 1987-01-06
DE3342129A1 (de) 1984-05-30

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee