发明名称 |
Optical information recording medium, an optical information recording apparatus, an information processing apparatus, program and information recording method |
摘要 |
An optical information recording apparatus can maintain a stable recording quality when recording information on an optical information recording medium having a recording layer of a multilayer structure. An optical information recording medium of a rotating type has a plurality of recording layers each having an information recording area in which information is recorded using a laser beam. An inner power calibration area is provided in each of the recording layers at a location closer to a center of rotation of the optical information recording medium than the information recording area, and is used to perform a test write in an optimum power control process to acquire an optimum recording power of the laser beam. The outer power calibration area is provided at a location farther from the center of rotation than the information recording area, and is used to perform a test write in an optimum power control process to acquire an optimum recording power of the laser beam.
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申请公布号 |
US7304929(B2) |
申请公布日期 |
2007.12.04 |
申请号 |
US20040933229 |
申请日期 |
2004.09.03 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
NINOMIYA MASAKI |
分类号 |
G11B5/09;G11B7/00;G11B7/0045;G11B7/007;G11B7/125;G11B7/24 |
主分类号 |
G11B5/09 |
代理机构 |
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代理人 |
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地址 |
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