发明名称 |
Two-dimensional color barcode with preserved plane and lossy plane layers |
摘要 |
The present invention is embodied in a barcode system that includes an encoder configured to create a two-dimensional color barcode representing data defined by a first data layer and a second data layer, wherein the first data layer is preserved and the second data layer is lost during black and white copying of the color barcode.
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申请公布号 |
US7118041(B2) |
申请公布日期 |
2006.10.10 |
申请号 |
US20040833589 |
申请日期 |
2004.04.27 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
TAYLOR CLARK |
分类号 |
G06K1/14;G06K7/10;G06K1/12;G06K19/06 |
主分类号 |
G06K1/14 |
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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