发明名称 |
Reflective decoders for use in decoding optically encoded images |
摘要 |
A reflective decoding device is provided for use in decoding an encoded image comprising a latent image encoded using at least one encoding parameter. The device comprises a substrate with a reflective surface portion having a surface topography comprising a predetermined pattern of topographical features. The predetermined pattern is configured with at least one geometric characteristic corresponding to the at least one encoding parameter so that placement of a light-transmissive sheet having the encoded image formed thereon over the predetermined pattern of topographical features allows the latent image to be viewed.
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申请公布号 |
US7819324(B2) |
申请公布日期 |
2010.10.26 |
申请号 |
US20090361252 |
申请日期 |
2009.01.28 |
申请人 |
GRAPHIC SECURITY SYSTEMS CORPORATION |
发明人 |
ALASIA ALFRED V.;ALASIA ALFRED J.;ALASIA THOMAS C.;CVETKOVIC SLOBODAN |
分类号 |
G06K7/14 |
主分类号 |
G06K7/14 |
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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