发明名称 |
PREPIT SIGNAL GENERATION CIRCUIT, SEMICONDUCTOR INTEGRATED CIRCUIT, RECORDING AND REPRODUCING APPARATUS, AND PREPIT SIGNAL GENERATION METHOD |
摘要 |
PROBLEM TO BE SOLVED: To obtain a prepit signal generation circuit 12 which can implement accurate prepit detection performance regardless of presence or absence of a recorded mark on a group track adjacent to a land prepit, a semiconductor integrated circuit 100, recording and reproducing apparatus, and a prepit signal generation method. SOLUTION: A recording and reproducing apparatus is provided with; an optical recording medium 1 having a prepit; a recording and reproducing head 2 which emits a recording or reading optical beam to the optical recording medium 1 and outputs four signals detected by splitting the reflection light into four; and a prepit signal generation circuit 12 including a correction signal generation circuit which generates correction signals based on four signals received by the recording and reproducing head 2. COPYRIGHT: (C)2003,JPO
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申请公布号 |
JP2003248943(A) |
申请公布日期 |
2003.09.05 |
申请号 |
JP20020045485 |
申请日期 |
2002.02.21 |
申请人 |
TOSHIBA CORP |
发明人 |
KAKIZUKA YASUHIRO;FUJII TOSHIKAZU |
分类号 |
G11B7/005;G11B7/007;G11B7/09;(IPC1-7):G11B7/09 |
主分类号 |
G11B7/005 |
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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