发明名称 |
INFORMATION CODE INCLUDING REDUNDANT INFORMATION PROVIDING COPY PROTECTION |
摘要 |
<p>In an information code which is arranged to redundantly code at least one first information element by means of a first information element, one or more of the marks can be omitted for the coding of at least one additional information element. In addition, copy protection can be created for an information code that codes at least one first information element by means of a plurality of marks by the addition of at least one interference mark whose optical characteristics differ from those of the marks in the information code. After copying, all the marks will have the same optical characteristics.</p> |
申请公布号 |
WO2004057526(A1) |
申请公布日期 |
2004.07.08 |
申请号 |
WO2003SE01687 |
申请日期 |
2003.10.31 |
申请人 |
ANOTO AB;PETTERSSON, MATS, PETTER |
发明人 |
PETTERSSON, MATS, PETTER |
分类号 |
G06F3/0354;G06K1/12;G06K7/10;G06K7/14;G06K15/00;G06K19/06;G06K19/14;G06K19/16;(IPC1-7):G06K19/06 |
主分类号 |
G06F3/0354 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|