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    • 8. 发明授权
    • Optical disc recording method and optical disc recording apparatus for setting optimal recording power to record data
    • 光盘记录方法和用于设定最佳记录功率以记录数据的光盘记录装置
    • US07046599B2
    • 2006-05-16
    • US10392265
    • 2003-03-19
    • Keishi Matsumoto
    • Keishi Matsumoto
    • G11B7/00
    • G11B7/1263G11B7/00456G11B7/0062G11B7/0079G11B7/1267
    • An optical disc recording method comprises the steps of: setting a recording parameter function representing a relationship between a recording velocity for recording data to an optical disc and a parameter for optimally controlling a recording power controlling waveform for controlling a recording power of a light beam irradiated to the optical disc for recording the data; obtaining an optimal value for the parameter by executing a test recording at one recording velocity or at a plurality of recording velocities to a test area of the optical disc before actual data recording to the optical disc; correcting the recording parameter function in accordance with the obtained optimal value for the parameter; deriving the parameter corresponding to a recording velocity from the corrected recording parameter function; and recording the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter is applied.
    • 一种光盘记录方法,包括以下步骤:设置表示用于记录数据到光盘的记录速度与用于最佳地控制记录功率控制波形之间的关系的记录参数函数,用于控制照射的光束的记录功率 到用于记录数据的光盘; 通过在实际数据记录到光盘之前以一个记录速度或多个记录速度执行到光盘的测试区域的测试记录来获得参数的最佳值; 根据获得的参数最优值对记录参数函数进行修正; 从所述校正记录参数函数导出与记录速度对应的参数; 并通过照射所获得的参数所应用的记录功率控制波形的光束来记录数据。
    • 9. 发明授权
    • Optical disc apparatus with regulation of recording velocity and laser power
    • 具有记录速度和激光功率调节的光盘设备
    • US06975572B2
    • 2005-12-13
    • US10067926
    • 2002-02-05
    • Keishi Matsumoto
    • Keishi Matsumoto
    • G11B7/0045G11B7/125G11B7/00
    • G11B7/126G11B7/0045
    • A test recording is performed with respect to an optical disc prior to a regular recording, and a β value for setting a qualitative parameter relating to the level of the recording state within a preferable range is derived from a result of the test recording. Then, the recording velocity at which the derived β value or the writing laser power value is within the preferable value can be obtained. Therefore, the recording velocity at which the satisfactory recording can be realized with few recording errors can be determined. Further, a relation between a writing laser power value and a Δβ value is obtained from the reproduced signal from the test record area, and the writing laser power value is determined considering the Δβ value. Therefore, it is possible to determine the writing laser power value for performing a satisfactory recording even with the optical disc having a characteristic of a so-called β significant point at which the β value significantly changes with respect to the writing laser power value.
    • 在正常记录之前相对于光盘执行测试记录,并且从测试记录的结果导出用于设置与优选范围内的记录状态的水平相关的定性参数的β值。 然后,可以获得导出的β值或写入激光功率值在优选值内的记录速度。 因此,可以确定能够以很少的记录错误实现令人满意的记录的记录速度。 此外,根据来自测试记录区域的再现信号获得写入激光功率值和Deltabeta值之间的关系,并且考虑Deltabeta值来确定写入激光功率值。 因此,即使具有相对于写入激光功率值的β值显着变化的所谓的β有效点的特性的光盘,也可以确定用于执行令人满意的记录的写入激光功率值。