发明名称 |
Plaadikujuline optiline andmekandja |
摘要 |
An optical data carrier has a memory member having a radiation-transparent layer and an information recording layer adjoining it. The information recording layer has a surface with memory areas for digital information. The data carrier has a through opening for receiving a read/write device and has a thickness equal to that of a chip card or magnetic strip card. The memory member is 0.5-0.6 mm thick. An adapter for the read/write device has a base member with a rectangular recess of inner dimensions slightly greater than the outer dimensions of the plate-shaped data carrier to be received therein. The base member has a central opening coaxial to the through opening of the data carrier. The adapter/data carrier unit can rotate without balance error about a central axis of through opening and central opening. The combined thickness of the data carrier and of the base member measured at the recess corresponds to that of a standard DVD data carrier. |
申请公布号 |
EE200200015(A) |
申请公布日期 |
2003.04.15 |
申请号 |
EE20020000015 |
申请日期 |
2000.07.05 |
申请人 |
KARL-HEINZ SCHOPPE |
发明人 |
KARL-HEINZ SCHOPPE |
分类号 |
G11B23/00;G06K19/06;G06K19/08;G11B7/0033;G11B7/24;G11B17/04;G11B25/04;G11B25/10;G11B33/04;(IPC1-7):B42D15/02;G11B23/40;G11B33/06 |
主分类号 |
G11B23/00 |
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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