| 发明名称 |
METHOD OF EMBEDDING OPTICAL SECURITY FEATURE USING VIRTUAL PRINTER AND SECURITY FEATURE SERVICE |
| 摘要 |
A method for embedding an optical security feature in a digital document with a virtual printer and a security feature service and then sending the digital document to a hardware printer.
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| 申请公布号 |
US2011013217(A1) |
申请公布日期 |
2011.01.20 |
| 申请号 |
US20090934770 |
申请日期 |
2009.03.27 |
| 申请人 |
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发明人 |
TANG WENG SING;THIO FU WANG;CHEA CHEE KEONG;CHEONG JYM YEW MENG |
| 分类号 |
G06F15/00 |
主分类号 |
G06F15/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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