JPS641366A - Electronic blackboard device - Google Patents
Electronic blackboard deviceInfo
- Publication number
- JPS641366A JPS641366A JP62156865A JP15686587A JPS641366A JP S641366 A JPS641366 A JP S641366A JP 62156865 A JP62156865 A JP 62156865A JP 15686587 A JP15686587 A JP 15686587A JP S641366 A JPS641366 A JP S641366A
- Authority
- JP
- Japan
- Prior art keywords
- recorded
- blackboard
- scanner
- detection circuit
- copying
- 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
Links
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
PURPOSE: To shorten a time necessary for copying by executing reading in accordance with the conditions of a recorded part and a non-recorded part on a blackboard, and changing the speed of a record in an auxiliary scanning direction.
CONSTITUTION: A recorded line detection circuit 11 fetching a binary picture signal D which read and obtain picture block B, a line synchronizing signal C and a scanner, and deciding the presence and absence of a recorded picture on the blackboard bayed on the data; a buffer memory 12 fetching and storing the binary picture signal D; and a control unit 13 which is connected to the detection circuit 11, the memory 12, the driving means of the scanner and the recording paper carrying means of a copying device, which alters the content of the signals based on the decided result of the detection circuit 11 and which controls respective connected circuits are provided. If the recorded part does not exist on the optional line of the blackboard, it is detected and the shifting speed of the scanner and the speed of carrying the recording paper are fastened. Thus, the copying time can be shortened.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156865A JPH011366A (en) | 1987-06-24 | Electronic whiteboard device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156865A JPH011366A (en) | 1987-06-24 | Electronic whiteboard device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS641366A true JPS641366A (en) | 1989-01-05 |
JPH011366A JPH011366A (en) | 1989-01-05 |
Family
ID=
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