发明授权
US07149154B2 Medium and method for providing a desirable direct overwriting characteristic for optical data recorded at different linear recording velocities
失效
介质和方法，用于为以不同线性记录速度记录的光学数据提供期望的直接重写特性
- 专利标题： Medium and method for providing a desirable direct overwriting characteristic for optical data recorded at different linear recording velocities
- 专利标题（中）： 介质和方法，用于为以不同线性记录速度记录的光学数据提供期望的直接重写特性
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申请号： US10354919申请日： 2003-01-29
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公开(公告)号： US07149154B2公开(公告)日： 2006-12-12
- 发明人: Masanori Kosuda , Masahiro Mori
- 申请人： Masanori Kosuda , Masahiro Mori
- 申请人地址： JP Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Seed IP Law Group PLLC
- 优先权： JP2002-025618 20020201
- 主分类号： G11B11/00
- IPC分类号： G11B11/00
摘要：
It is an object of the present invention to provide a method for recording information in an optical recording medium with a good direct overwriting characteristic. The method for recording information in an optical recording medium according to the present invention forms record marks in a recording layer containing a phase change material by modulating the power of a laser beam between a plurality of power levels including a recording power Pw, an erasing power Pe and ground power Pb. The erasing power Pe is set to a level within a region where a reflection coefficient of a region between neighboring record marks approaches a reflection coefficient of the record mark as the erasing power Pe increases. As a result, a good overwriting characteristic can be obtained when data are recorded at a high linear velocity.
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