JPH0623096Y2 - 電子黒板 - Google Patents

電子黒板

Info

Publication number
JPH0623096Y2
JPH0623096Y2 JP1987102905U JP10290587U JPH0623096Y2 JP H0623096 Y2 JPH0623096 Y2 JP H0623096Y2 JP 1987102905 U JP1987102905 U JP 1987102905U JP 10290587 U JP10290587 U JP 10290587U JP H0623096 Y2 JPH0623096 Y2 JP H0623096Y2
Authority
JP
Japan
Prior art keywords
screen
page
white level
reference white
electronic blackboard
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 - Lifetime
Application number
JP1987102905U
Other languages
English (en)
Japanese (ja)
Other versions
JPS648874U (enrdf_load_stackoverflow
Inventor
修司 高橋
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 JP1987102905U priority Critical patent/JPH0623096Y2/ja
Publication of JPS648874U publication Critical patent/JPS648874U/ja
Application granted granted Critical
Publication of JPH0623096Y2 publication Critical patent/JPH0623096Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Facsimiles In General (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Drawing Aids And Blackboards (AREA)
JP1987102905U 1987-07-03 1987-07-03 電子黒板 Expired - Lifetime JPH0623096Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987102905U JPH0623096Y2 (ja) 1987-07-03 1987-07-03 電子黒板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987102905U JPH0623096Y2 (ja) 1987-07-03 1987-07-03 電子黒板

Publications (2)

Publication Number Publication Date
JPS648874U JPS648874U (enrdf_load_stackoverflow) 1989-01-18
JPH0623096Y2 true JPH0623096Y2 (ja) 1994-06-15

Family

ID=31333242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987102905U Expired - Lifetime JPH0623096Y2 (ja) 1987-07-03 1987-07-03 電子黒板

Country Status (1)

Country Link
JP (1) JPH0623096Y2 (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61242453A (ja) * 1985-04-19 1986-10-28 Matsushita Electric Ind Co Ltd 電子複写黒板
JPS6285573A (ja) * 1985-10-11 1987-04-20 Fuji Xerox Co Ltd シエ−デイング補正装置

Also Published As

Publication number Publication date
JPS648874U (enrdf_load_stackoverflow) 1989-01-18

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