发明授权
- 专利标题: Protecting printed items intended for public exchange with glossmarks
- 专利标题(中): 保护用于公开交换的打印物品
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申请号: US10184219申请日: 2002-06-27
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公开(公告)号: US07126721B2公开(公告)日: 2006-10-24
- 发明人: Shen-ge Wang , Beilei Xu , Chu-heng Liu
- 申请人: Shen-ge Wang , Beilei Xu , Chu-heng Liu
- 申请人地址: US CT Stamford
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: US CT Stamford
- 代理商 Christopher D. Wait
- 主分类号: H04N1/405
- IPC分类号: H04N1/405 ; G06K15/00 ; B41M3/10
摘要:
The present invention relates to protecting printed items intended for public exchange having important informational indicia provided therein. The print items are protected from tampering by providing an informational indicia image as a glossmark. By selectively applying halftones with anisotropic structure characteristics which are significantly different in orientation while remaining identical in density to render information indicia, a glossmark image is produced of the information indicia. Such an information indicia glossmark image when provided in print item image helps protect that print item image from tampering.