发明名称 |
Optical disk, optical disk drive apparatus, and optical disk tracking method |
摘要 |
The invention provides an optical disk medium having a recording spiral formed by connecting groove tracks and land tracks alternately, and permitting detection of a connecting point between a groove track and a land track reliably is provided, and a method of tracking the optical disk medium and an optical disk drive apparatus for driving the optical disk medium. One part of an identification signal area is shifted by a predetermined distance in one radial direction from the center of a groove, while another part of the identification signal area is shifted by the same distance in the opposite radial direction from the center of the groove. A land/groove polarity of a sector is determined by the polarity of a tracking error signal and the order of the polarities during reproduction of an identification signal.
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申请公布号 |
US6466530(B1) |
申请公布日期 |
2002.10.15 |
申请号 |
US20010956103 |
申请日期 |
2001.09.20 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
NAKANE KAZUHIKO;OOHATA HIROYUKI;NAGASAWA MASATO;GOTOH KENJI;ISHIDA YOSHINOBU |
分类号 |
G11B7/007;G11B7/09;G11B7/095;G11B7/24;G11B20/12;G11B27/19;G11B27/30;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/007 |
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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