发明名称 |
Magneto-optical disk, optical pickup, and magneto-optical disk drive |
摘要 |
A magneto-optical disk including a transparent substrate, pit strings containing information formed in spiral or concentric form on a surface of the transparent substrate, a magneto-optical recording medium layer for covering the surface of the transparent substrate having the pit strings formed thereon, and magneto-optical recording areas formed by spiral or concentric flat portions between adjacent pit strings. An optical pickup for reproducing pit information and magneto-optically-recorded information from the magneto-optical disk. A magneto-optical disk drive for recording and reproducing information on the magneto-optical disk. The magneto-optical disk has a memory capacity which is twice the memory capacity of a conventional magneto-optical disk having ROM, and is accessed at high speeds.
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申请公布号 |
US5740153(A) |
申请公布日期 |
1998.04.14 |
申请号 |
US19970801245 |
申请日期 |
1997.02.19 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
OHTA, KENJI;TERASHIMA, SHIGEO;TAKAHASHI, AKIRA |
分类号 |
G11B11/10;G11B11/105;(IPC1-7):G11B7/24 |
主分类号 |
G11B11/10 |
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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