| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_428b0a7949a0a7b179097d436a63a3bc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2542
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2534
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2220-2562
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2220-2587
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2220-2545
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2585
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-146 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B23-505
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2575
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B23-282
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00797
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-241
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-00086 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-241
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-257
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-0055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B23-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B3-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B- |
| filingDate |
1999-06-25^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6634f1c29edd931e7103a925e6392798
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3709a79fdc3e9776b1f0eaa8419eca18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddbb0b2497671ec86fcd24e780e57838 |
| publicationDate |
2001-05-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1094935-A1 |
| titleOfInvention |
Methods and apparatus for rendering an optically encoded medium unreadable |
| abstract |
Methods and apparatus are provided for making an optically readable media (20) unreadable. The method includes steps of (a) providing the media (20) with an optically activated mechanism that degrades the reflectivity of a surface wherein information is encoded; (b) exposing the media (20) to optical radiation for reading out the information; and, during the step of exposing, (c) initiating the operation of the optically activated mechanism. In a further aspect the optically activated mechanism causes a defocusing of a readout beam, thereby degrading reflection of the readout beam from a surface wherein information is encoded. In another embodiment the method deforms a surface of the layer resulting in readout beam aberration or in an inability to correctly stay on track. In another embodiment a portion of the surface is removed to the atmosphere, such as by evaporation or sublimation. |
| priorityDate |
1998-06-25^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |