发明名称 |
Information recording and reproducing method. |
摘要 |
<p>In an information recording and reproducing apparatus for recording or reproducing information to/from tracks by irradiating a light spot (3a) to an optical disk (100) in which N sectors are included per track and the number of necessary alternating sectors per track is set to M, the apparatus has a track format such that when a desired moving time of the light spot between the adjacent tracks is k (k > 1) times as long as a desired sector passing time of the light spot, M or more alterating sectors are arranged subsequent to the (N - M - k) ordinary sectors to record user's data. The light spot jumps between the tracks for a period of time corresponding to k sectors. Thus, the recording of information to a certain track and the subsequent reading check (Read After Write) can be effectively executed at a high speed.</p> |
申请公布号 |
EP0418850(A2) |
申请公布日期 |
1991.03.27 |
申请号 |
EP19900118010 |
申请日期 |
1990.09.19 |
申请人 |
HITACHI, LTD. |
发明人 |
MIZOKAMI, TAKUYA;SHIGEMATSU, KAZUO;ARAI, SHINICHI |
分类号 |
G11B20/10;G11B7/09;G11B20/12;G11B20/18;G11B27/36 |
主分类号 |
G11B20/10 |
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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