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公开(公告)号:US20060181983A1
公开(公告)日:2006-08-17
申请号:US10549640
申请日:2004-03-11
IPC分类号: G11B7/00
CPC分类号: G11B27/24 , G11B7/007 , G11B7/00736 , G11B7/1267 , G11B20/1217 , G11B2007/0013 , G11B2020/1268 , G11B2020/1275 , G11B2020/1287 , G11B2220/216 , G11B2220/218 , G11B2220/237 , G11B2220/2525 , G11B2220/2541 , G11B2220/2545 , G11B2220/2562 , G11B2220/2575
摘要: A method of recording information on a multilayer record carrier includes a power control procedure for setting the writing power of a recording beam for a lower recording layer (41). First an upper area in an upper recording layer (40), i.e. the recording layer closest to the laser entry side of the record carrier, is recorded. Secondly a power control zone (60) is located on the lower recording layer such that the upper area substantially covers a radial position range on the upper recording layer corresponding to a radial position range of the power control zone on the lower recording layer (41). Finally an optimum power control (OPC) procedure for setting the writing power of the beam for the lower recording layer is performed by writing a test pattern of marks in the power control zone.
摘要翻译: 在多层记录载体上记录信息的方法包括用于设置下记录层(41)的记录光束的写入功率的功率控制程序。 首先,记录上记录层(40)中的记录层,即最靠近记录载体的激光进入侧的记录层。 其次,功率控制区(60)位于下记录层上,使得上区域基本上覆盖与记录层(41)上的功率控制区的径向位置范围对应的上记录层上的径向位置范围, 。 最后,通过在功率控制区中写入标记的测试图案来执行用于设置下记录层的光束的写入功率的最佳功率控制(OPC)过程。