| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3263
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3284
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3271
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3281
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3266
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2201-0081
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3269
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2201-0065 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T1-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F18-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N1-32154
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N1-32309
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F7-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G09C5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T1-0042 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N1-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-00 |
| filingDate |
2005-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2013-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-101314473-B1 |
| titleOfInvention |
Improved technology to detect, analyze and use visual authentication patterns |
| abstract |
Improved techniques for making copy detection patterns and using them to detect copy relationships between digital representations are disclosed. This technique involves changing the copy detection pattern and including the message in the copy detection pattern without reading the message. Techniques using a copy judgment pattern, techniques to increase the sensitivity of copy detection using a copy detection pattern by changing one of the two copy detection patterns compared to account for changes due to the copying process, copy detection pattern throughout the document And a technique of using the entropy of the copy detection pattern to locate the copy detection pattern. Also disclosed are applications of copy detection patterns with copy and digital-to-digital copying involving conversion between digital and analog formats. |
| priorityDate |
2004-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |