| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9dda2fd1d526f27aca30ba6dda8a419f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2201-0065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2201-0081
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3266
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/H04N2201-3269
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3263
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2201-3284 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F18-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T1-005
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/H04N1-32154
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T1-0042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G09C5-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N1-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N1-387
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N1-32 |
| filingDate |
2007-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d1c3454d866232d0f7fb2027e8743c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d6a9e80f16b36a271467e47cf82bf86 |
| publicationDate |
2007-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2007228586-A |
| titleOfInvention |
An improved technique for detecting, analyzing and using visible authentication patterns |
| abstract |
Copy detection patterns are created to detect copy relationships between digital representations. A message is included in the copy detection pattern without changing the entropy of the copy detection pattern, and the message is read. The copy detection pattern on the analog form is used to determine whether the analog form is the original analog form The copy detection sensitivity using the copy detection pattern is determined without referring to the original digital representation of the analog copy detection pattern, and the result of the copy process is modified for one of the two copy detection patterns being compared. Enhancing by incorporating the resulting modifications, distributing the copy detection pattern throughout the document, and locating the copy detection pattern using the entropy of the copy detection pattern. Also, conversion between digital and analog forms, and copy detection for digital-to-digital reproduction. [Selection] Figure 1 |
| priorityDate |
2004-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |