发明授权
- 专利标题： Electronic blackboard device
- 专利标题（中）： 电子黑板装置
-
申请号： US09058242申请日： 1998-04-10
-
公开(公告)号： US06188493B1公开(公告)日： 2001-02-13
- 发明人: Takahiro Esaki , Kazuhiro Eguchi , Takeshi Nakayama
- 申请人： Takahiro Esaki , Kazuhiro Eguchi , Takeshi Nakayama
- 优先权： JP9-101404 19970418; JP9-212818 19970807; JP9-234325 19970829
- 主分类号： H04N146
- IPC分类号： H04N146
摘要：
An electronic blackboard device capable of performing color printing. Data read by an image sensor is converted to digital data by an A/D converter and provided via a shading correcting circuit and a converter to a printer control circuit, which causes a color printer to print the appropriate data in a color corresponding to a marker.