公开(公告)号：US20090059748A1

公开(公告)日：2009-03-05

申请号：US11718244

申请日：2005-10-28

申请人： Maarten Van Der Vleuten ,  Johannes Hendrikus Maria Spruit ,  Derk Jan Adelerhof ,  Petrus Adrianus Maria Van Dorst ,  Rene Johan Gerrit Elfrink

发明人： Maarten Van Der Vleuten ,  Johannes Hendrikus Maria Spruit ,  Derk Jan Adelerhof ,  Petrus Adrianus Maria Van Dorst ,  Rene Johan Gerrit Elfrink

IPC分类号： G11B7/00

CPC分类号： G11B7/0062

摘要： A method for setting an optimum value of a write power level for use in an optical recording apparatus for writing information on a recording layer (3) of an optical recording medium (1) by means of a radiation beam (5) is described. The recording layer is able to change between an amorphous and a crystalline state. The apparatus comprises a radiation source (4) for emitting the radiation beam (5) having a controllable value of a write power level (Pw) for recording information on the recording medium, a control unit (12) for recording a series of test patterns in a test area on the recording layer, each pattern being recorded with a different value of the write power level, a read unit (90) for reading the patterns and forming corresponding read signal portions, and first means (10, 101, 102) for deriving a value of a read parameter from at least one read signal portion and setting an optimum value (Popt) of the write power level based on the values of this read parameter. According to the invention the apparatus further comprises second means to perform at least one initial step (40) of at least partly amorphizing and subsequently recrystallizing the recording layer. In this way a consistent result for the determined optimum value (Popt) of the write power level (Pw) is obtained.

摘要翻译： 描述了一种用于设置用于通过辐射束（5）在光学记录介质（1）的记录层（3）上写入信息的光学记录装置中的写入功率电平的最佳值的方法。 记录层能够在无定形和结晶状态之间变化。 该装置包括用于发射具有用于在记录介质上记录信息的写入功率电平（Pw）的可控值的辐射束（5）的辐射源（4），用于记录一系列测试图案的控制单元 在记录层上的测试区域中，每个图案被记录有不同的写功率电平值，用于读取图案并形成对应的读信号部分的读单元（90）和第一装置（10,101,102） 用于从至少一个读取信号部分导出读取参数的值，并且基于该读取参数的值来设置写入功率电平的最佳值（Popt）。 根据本发明，该装置还包括执行至少部分非晶化并随后使记录层再结晶的至少一个初始步骤（40）的第二装置。 以这种方式，获得写入功率电平（Pw）的所确定的最佳值（Popt）的一致结果。