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    • 46. 发明授权
    • Power calibration method and apparatus for optical disc
    • 光盘功率校准方法及装置
    • US07092319B2
    • 2006-08-15
    • US10624613
    • 2003-07-23
    • Hideo Sano
    • Hideo Sano
    • G11B7/125
    • G11B7/1267
    • A power calibration apparatus identifies a calibration area divided by an EFM frame unit on an optical disc and controls writing by a writing means. According to read out information for test writing written in the optical disc, a first writing power is calculated. By setting the first recording power as an initial value and changing the first recording power by a dense degree through steps corresponding to the number of the calibration areas divided by the EFM frame unit, the apparatus urges writing by the writing means. According to the read out information for the test writing written in the optical disc, a second writing power is calculated.
    • 功率校准装置识别由光盘上的EFM帧单元划分的校准区域,并且控制由写入装置进行的写入。 根据用于在光盘中写入的测试写入的读出信息,计算第一写入功率。 通过将第一记录功率设置为初始值,并通过与通过EFM帧单元划分的校准区域的数量相对应的步骤,将密集度改变第一记录功率,该设备敦促写入装置进行写入。 根据写在光盘中的测试写入的读出信息,计算第二写入功率。