发明名称 |
Electronic blackboard device |
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.
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申请公布号 |
US6188493(B1) |
申请公布日期 |
2001.02.13 |
申请号 |
US19980058242 |
申请日期 |
1998.04.10 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ESAKI TAKAHIRO;EGUCHI KAZUHIRO;NAKAYAMA TAKESHI |
分类号 |
H04N1/46;(IPC1-7):H04N1/46 |
主分类号 |
H04N1/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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