发明名称 |
Printed material verification |
摘要 |
Apparatus and methods are provided. Print-mark data corresponding to a print mark on a hardcopy of printed material is extracted from data corresponding to the hardcopy of printed material. The print-mark data is analyzed to quantify printing artifacts of the print mark resulting from printing variations occurring during printing of the hardcopy of printed material. The quantified printing artifacts are encrypted, and the encrypted printing artifacts are encoded into data corresponding to a machine-readable identifier. The machine-readable identifier is printed from the data corresponding to the machine-readable identifier on the hardcopy of printed material.
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申请公布号 |
US2005053236(A1) |
申请公布日期 |
2005.03.10 |
申请号 |
US20030657783 |
申请日期 |
2003.09.08 |
申请人 |
SAMII MOHAMMAD M.;VAN VEEN MARK A.;WEBB STEVEN L.;POON LILY;TAYLOR CLARK NOBLE |
发明人 |
SAMII MOHAMMAD M.;VAN VEEN MARK A.;WEBB STEVEN L.;POON LILY;TAYLOR CLARK NOBLE |
分类号 |
B41J29/38;B41J29/00;G06T1/00;G07D7/00;G07D7/20;H04N1/387;H04N1/40;(IPC1-7):G09C3/00;G09C5/00;G06K9/00;H04N7/167;G06K7/10 |
主分类号 |
B41J29/38 |
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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