发明名称 |
Disk driving device |
摘要 |
A disk driving device includes a rotatably driven information recording disk having multiple recording surfaces. At least two recording surfaces among them are provided with mutually related regions originally assigned with identical signals and mutually related regions originally assigned with different signals. These signals are detected by a head assembly and subsequently compared to each other to specify a region in which the head assembly is located.
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申请公布号 |
US4847704(A) |
申请公布日期 |
1989.07.11 |
申请号 |
US19870106558 |
申请日期 |
1987.10.06 |
申请人 |
ALPS ELECTRIC CO., LTD. |
发明人 |
IIZUMI, TOMOO;KANEKO, TOORU |
分类号 |
G11B21/08;G11B5/596;G11B19/04;G11B20/18;G11B21/10 |
主分类号 |
G11B21/08 |
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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