发明名称 |
A laser-writable information recording blank |
摘要 |
A laser-writable information storage blank comprises a substantially planar disk made of a material (35) which is susceptible to modification by impingement of laser radiation. The blank medium includes a metallic track pattern (34), preferably in the form of a spiral pattern. The track pattern provides two reference edges from which exact distances may be determined for writing and reading binary information stored between adjacent track portions. <IMAGE> |
申请公布号 |
EP0936606(A3) |
申请公布日期 |
2001.09.19 |
申请号 |
EP19990301015 |
申请日期 |
1999.02.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
JACOBOWITZ, LAWRENCE;DECUSATIS, CASIMER M. |
分类号 |
G11B7/00;G11B7/007;G11B7/09;G11B7/12;G11B7/24;G11B7/245;G11B7/26 |
主分类号 |
G11B7/00 |
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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