发明名称 |
Authentication method and system |
摘要 |
An authentication method is provided that is based on a reference object, such as an authentication label attached to an optical disc. The authentication label has a three-dimensional distribution of particles. For the purposes of authentication it is determined whether there is in fact a three-dimensional particle distribution. Next a two-dimensional data acquisition step is performed for the purpose of authentication. This method is particularly useful for copy protection. <IMAGE> |
申请公布号 |
EP1477940(A3) |
申请公布日期 |
2005.06.29 |
申请号 |
EP20040462004 |
申请日期 |
2004.01.30 |
申请人 |
HEWLETT-PACKARD MAGYARORSZAG SZAMITASTECHN. ES ELEKTR. BERENDEZESEKET FORGALMAZO ES SZOLGALTATO KORLATOLT FELELOESSEGUE TARSASAG |
发明人 |
ATTILA, HARASZTI |
分类号 |
B42D15/00;B42D15/10;G06K19/06;G06K19/14;G06K19/18;G07D7/00;G07D7/20;G07F7/08;G07F7/12;G11B20/00 |
主分类号 |
B42D15/00 |
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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