JPS5398721A - Facisimile transmitter - Google Patents

Facisimile transmitter

Info

Publication number
JPS5398721A
JPS5398721A JP1246477A JP1246477A JPS5398721A JP S5398721 A JPS5398721 A JP S5398721A JP 1246477 A JP1246477 A JP 1246477A JP 1246477 A JP1246477 A JP 1246477A JP S5398721 A JPS5398721 A JP S5398721A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
brightness
facisimile
transmitter
manusctipt
manuscript
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.)
Pending
Application number
JP1246477A
Inventor
Yasuyuki Kojima
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

Links

Abstract

PURPOSE: To obtain the photo electric conversion signal having approximately constant amplitude even with the brightness of light source varied, by measuring the brightness of the manuscript illuminating means immediately before the transmission of manusctipt and by setting the storage time of the image sensor according to the measured value.
COPYRIGHT: (C)1978,JPO&Japio
JP1246477A 1977-02-09 1977-02-09 Facisimile transmitter Pending JPS5398721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1246477A JPS5398721A (en) 1977-02-09 1977-02-09 Facisimile transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1246477A JPS5398721A (en) 1977-02-09 1977-02-09 Facisimile transmitter

Publications (1)

Publication Number Publication Date
JPS5398721A true true JPS5398721A (en) 1978-08-29

Family

ID=11806070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1246477A Pending JPS5398721A (en) 1977-02-09 1977-02-09 Facisimile transmitter

Country Status (1)

Country Link
JP (1) JPS5398721A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236570A (en) * 1984-05-10 1985-11-25 Dainippon Screen Mfg Co Ltd Picture reading correction method
JPS60236569A (en) * 1984-05-10 1985-11-25 Dainippon Screen Mfg Co Ltd Picture reading correction method
US4760465A (en) * 1984-11-29 1988-07-26 Ricoh Company, Ltd. Electronic blackboard which detects an abnormal operating condition by reading a non-image section of a writing surface at power-up
US5880859A (en) * 1995-04-28 1999-03-09 Dainippon Screen Mfg. Co., Ltd. Image reading apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236570A (en) * 1984-05-10 1985-11-25 Dainippon Screen Mfg Co Ltd Picture reading correction method
JPS60236569A (en) * 1984-05-10 1985-11-25 Dainippon Screen Mfg Co Ltd Picture reading correction method
JPH0332949B2 (en) * 1984-05-10 1991-05-15 Dainippon Screen Mfg
JPH0332948B2 (en) * 1984-05-10 1991-05-15 Dainippon Screen Mfg
US4760465A (en) * 1984-11-29 1988-07-26 Ricoh Company, Ltd. Electronic blackboard which detects an abnormal operating condition by reading a non-image section of a writing surface at power-up
US5880859A (en) * 1995-04-28 1999-03-09 Dainippon Screen Mfg. Co., Ltd. Image reading apparatus

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