JPS63266967A - 光学式画像入力装置の画信号増幅回路 - Google Patents

光学式画像入力装置の画信号増幅回路

Info

Publication number
JPS63266967A
JPS63266967A JP62101071A JP10107187A JPS63266967A JP S63266967 A JPS63266967 A JP S63266967A JP 62101071 A JP62101071 A JP 62101071A JP 10107187 A JP10107187 A JP 10107187A JP S63266967 A JPS63266967 A JP S63266967A
Authority
JP
Japan
Prior art keywords
output
white level
circuit
level
variable gain
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
JP62101071A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0564908B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Shinya Takenaka
竹中　信也
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP62101071A priority Critical patent/JPS63266967A/ja
Publication of JPS63266967A publication Critical patent/JPS63266967A/ja
Publication of JPH0564908B2 publication Critical patent/JPH0564908B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP62101071A 1987-04-23 1987-04-23 光学式画像入力装置の画信号増幅回路 Granted JPS63266967A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62101071A JPS63266967A (ja) 1987-04-23 1987-04-23 光学式画像入力装置の画信号増幅回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62101071A JPS63266967A (ja) 1987-04-23 1987-04-23 光学式画像入力装置の画信号増幅回路

Publications (2)

Publication Number Publication Date
JPS63266967A true JPS63266967A (ja) 1988-11-04
JPH0564908B2 JPH0564908B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-09-16

Family

ID=14290873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62101071A Granted JPS63266967A (ja) 1987-04-23 1987-04-23 光学式画像入力装置の画信号増幅回路

Country Status (1)

Country Link
JP (1) JPS63266967A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135972A (ja) * 1983-01-25 1984-08-04 Matsushita Graphic Commun Syst Inc 自動背景制御回路
JPS60169273A (ja) * 1984-02-13 1985-09-02 Fuji Xerox Co Ltd 画信号処理装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135972A (ja) * 1983-01-25 1984-08-04 Matsushita Graphic Commun Syst Inc 自動背景制御回路
JPS60169273A (ja) * 1984-02-13 1985-09-02 Fuji Xerox Co Ltd 画信号処理装置

Also Published As

Publication number Publication date
JPH0564908B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-09-16

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