| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d00a5f90e8aed1cb29efaec1134cbb44 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00768
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00927
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B19-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00608
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00094
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00173
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B19-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B23-282
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00086 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B19-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B19-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B23-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24 |
| filingDate |
2001-03-30^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2d8352c4c39766fce1fa7ea0d05883a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b6192189e95775e452fc80ce93c7c2c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2016cfa6635f1de7dbff2261981c4b5a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46006f73b20da17ceea7f4f5c0c9fa59 |
| publicationDate |
2002-01-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2415047-A1 |
| titleOfInvention |
Method and apparatus for controlling access to storage media |
| abstract |
A method and apparatus for preventing copying of data from optical storage media. A locus (410) on optical storage medium is initially read to produce a signal and is then re-read by a reader to produce a second signal. The signal detected upon re-reading is different from the signal that is detected upon initial sampling. A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials (400) that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and/or to control use of the medium. |
| priorityDate |
2000-06-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |