G - Physics – 06 – K
Patent
G - Physics
06
K
352/52
G06K 5/00 (2006.01) G06K 7/08 (2006.01) G06K 19/10 (2006.01) G07F 7/02 (2006.01) G07F 7/08 (2006.01) G07F 7/12 (2006.01)
Patent
CA 1183952
ABSTRACT OF THE DISCLOSURE A method of safeguarding against the re-transfer of uniquely recorded information on a data carrier (1) includes the recording of the information data and in addition thereto a simultaneously recording of an additional information on the data carrier (1) which reflects co-ordination characteristics relative to the data carrier. In order to carry out the method an apparatus is provided for recording and/or reading a re-transfer protected information on a data carrier (1) with recording and/or reading device (4). The apparatus comprises a device (13) for detecting measurable properties (3) which are present at singular points of the data carrier (1) and for producing an additional information characterizing such properties. -1-
387702
Bauer Siegfried
Stockburger Hermann
Copytex G.m.b.h. Sicherheitssysteme
Goudreau Gage Dubuc
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