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.
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
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