发明名称 |
Pre-pit signal generator compensating a pre-pit signal damped, semiconductor integrated circuit, recording and playback apparatus, and pre-pit signal generation method |
摘要 |
A recording and playback apparatus comprises, a drive unit configured to rotate an optical recording medium including a recording track, a recording and playback unit configured to irradiate a light beam on the recording track, and to perform recording and playback of an information detected a reflected light beam by an upside photo detection area and a downside photo detection area bisected in a tangential direction of the recording track, and a recording and playback controller configured to generate a position tracking signal based on the reflected light beam detected by the upside photo detection area and the downside photo detection area, and to compensate a level of the position tracking signal when the position tracking signal and a record mark on the recording track are detected.
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申请公布号 |
US2003179666(A1) |
申请公布日期 |
2003.09.25 |
申请号 |
US20030369502 |
申请日期 |
2003.02.21 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KAKITSUKA YASUHIRO;FUJII TOSHIKAZU |
分类号 |
G11B7/005;G11B7/007;G11B7/09;(IPC1-7):G11B7/095 |
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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