GEP20166461B - Pattern for encoding digital information on a surface, and marking and reading methods
- Google Patents
Pattern for encoding digital information on a surface, and marking and reading methods
Info
Publication number
GEP20166461B
GEP20166461BGEAP201113490AGEAP2011013490AGEP20166461BGE P20166461 BGEP20166461 BGE P20166461BGE AP201113490 AGEAP201113490 AGE AP201113490AGE AP2011013490 AGEAP2011013490 AGE AP2011013490AGE P20166461 BGEP20166461 BGE P20166461B
Authority
GE
Georgia
Prior art keywords
digital information
pattern
marking
encoding digital
reading methods
Prior art date
Application number
GEAP201113490A
Inventor
Eric Decoux
Dave Vuistiner
Original Assignee
Sicpa Holding Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sicpa Holding SafiledCriticalSicpa Holding Sa
Priority to GEAP201113490ApriorityCriticalpatent/GEP20166461B/en
Publication of GEP20166461BpublicationCriticalpatent/GEP20166461B/en
A pattern for encoding digital information on a surface, including a specific arrangement (P1) of a plurality of symbols belonging to a set of symbols (ENS1). Each symbol in the arranges is intended for encoding a portion of said digital information, characterized in that each symbol consists of at least one differential pair of elements (E1, E2) arranged in a specific manner, each element being characterized by a parameter, the parameter of the first element of each differential pair having a first value and the parameter of the second element of each differential pair having a second value that is different from the first value.
GEAP201113490A2011-11-152011-11-15Pattern for encoding digital information on a surface, and marking and reading methods
GEP20166461B
(en)
Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device.
Method of checking producibility of a composite security design of a security document on a line of production equipment and digital computer environment for implementing the same.
Method for providing directly on a graphic printing line a unique coloured sign with reflecting dots, having an alphanumeric code inscribed at the centre, for filing and reading the original and comparing it with a fake