JPS6461816A - Electronic blackboard - Google Patents

Electronic blackboard

Info

Publication number
JPS6461816A
JPS6461816A JP21793887A JP21793887A JPS6461816A JP S6461816 A JPS6461816 A JP S6461816A JP 21793887 A JP21793887 A JP 21793887A JP 21793887 A JP21793887 A JP 21793887A JP S6461816 A JPS6461816 A JP S6461816A
Authority
JP
Japan
Prior art keywords
input
display
position information
eraser
distortions
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
JP21793887A
Other languages
Japanese (ja)
Inventor
Yoshio Abe
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP21793887A priority Critical patent/JPS6461816A/en
Publication of JPS6461816A publication Critical patent/JPS6461816A/en
Pending legal-status Critical Current

Links

Landscapes

  • Position Input By Displaying (AREA)

Abstract

PURPOSE:To shorten the copying/erasing time and at the same time to avoid the distortions of the copy or display contents, by separating an input part from a display part and at the same time processing electrically these input and display parts. CONSTITUTION:An input part 15 contains a plate type tablet input device made of a light transmissive material. Then the part 15 gives the position information pointed by an input pen 15a to a control part 16 in an input mode and also the position information on two points pointed by an eraser 15b to the part 16 in a partial erasion mode respectively. A display part 17 consists of a liquid crystal display device whose screen size is equal to an input enable area of the part 15. The display device is set close to the back side of the part 15 so that the display screen is put on the input enable area when viewed from the front side. The part 16 displays the position information obtained by the pen 15a at a luminance level different from the background luminance produced by the eraser 15b and furthermore displays the read pictures sent from a picture input part 18 at a display part 17 with magnification. As a result, the copying/ erasing time is shortened and the distortions of the display contents can be avoided.
JP21793887A 1987-09-02 1987-09-02 Electronic blackboard Pending JPS6461816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21793887A JPS6461816A (en) 1987-09-02 1987-09-02 Electronic blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21793887A JPS6461816A (en) 1987-09-02 1987-09-02 Electronic blackboard

Publications (1)

Publication Number Publication Date
JPS6461816A true JPS6461816A (en) 1989-03-08

Family

ID=16712059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21793887A Pending JPS6461816A (en) 1987-09-02 1987-09-02 Electronic blackboard

Country Status (1)

Country Link
JP (1) JPS6461816A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020080669A (en) * 2001-04-17 2002-10-26 (주)한일정보비젼 The electric pen remote lecture system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020080669A (en) * 2001-04-17 2002-10-26 (주)한일정보비젼 The electric pen remote lecture system

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