发明名称 |
LIMITED PLAY DATA STORAGE MEDIA AND METHOD FOR LIMITING ACCESS TO DATA THEREON |
摘要 |
In one embodiment, a limited play optical storage medium for data can comprises a first substrate, a reflective layer, a data layer, a second substrate, and a reactive layer. The second substrate is a read-through substrate and is capable of transmitting less than about 10% of light in a wavelength in the range of about 455 nanometers and about 620 nanometers. The reactive layer can comprise a carrier and a reactive material. The reactive material can be capable of undergoing a reaction such that after the reaction a percent reflectivity through the reactive layer is reduced. |
申请公布号 |
EP1502259(A1) |
申请公布日期 |
2005.02.02 |
申请号 |
EP20030716927 |
申请日期 |
2003.03.31 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
OLSON, DANIEL, ROBERT;WISNUDEL, MARC, BRIAN;VAN HAMERSVELD, EELCO, M., S. |
分类号 |
G11B7/24;G11B7/244;G11B7/246;G11B7/247;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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