公开(公告)号：US20080151710A1

公开(公告)日：2008-06-26

申请号：US11895526

申请日：2007-08-24

申请人： Mitsunori Kobayashi ,  Toshio Shoji

发明人： Mitsunori Kobayashi ,  Toshio Shoji

IPC分类号： G11B7/00

CPC分类号： G11B7/1263

摘要： In an optical disk apparatus and a method for determining the recording power for the same, for determining the optimum value of a laser power when recording data onto a high density optical disk, a test signal is recorded with changing the recording power Pw while fixing an erasing power Pe. Reproduction is made on the signal recorded so as to obtain a “β” value indicative of asymmetry of the reproduction signal to each the recording power. In this instance, the “β” value, or the optimal recording power Pwo is determined, with utilizing an area or region, being called APC region, which is provided in a part of the recording regions, which are divided into a large number thereof, each being made of a predetermined information recording unit (RUB), being unique to that disk, and further equalization thereof. Herein, the erasing power Pe to be fixed is determined from a result of measurement on a modulation factor, “M” value while recoding another test signal. Or, it may be determined in accordance with strategy information, which is determined for that optical disk in advance. Or, the erasing power Pe may be determined Pe0, irrespective of the optical disks.

摘要翻译： 在用于确定其记录功率的光盘装置和方法中，为了在将数据记录到高密度光盘上时确定激光功率的最佳值，在修改记录功率Pw的同时记录测试信号 擦除电力Pe。 对所记录的信号进行再现，以获得指示再现信号对每个记录功率的不对称性的“β”值。 在这种情况下，使用被称为APC区域的区域或区域来确定“β”值或最佳记录功率Pwo，该区域或区域被设置在记录区域的一部分中，被分成大量 每个由预定的信息记录单元（RUB）制成，对于该盘是唯一的，并且进一步的均衡。 这里，从重新编码另一测试信号的调制因子“M”值的测量结果确定要固定的擦除功率Pe。 或者，可以根据预先为该光盘确定的策略信息来确定。 或者，可以确定擦除功率Pe Pe 0，与光盘无关。