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    • 2. 发明申请
    • RECORDING APPARATUS AND RECORDING LASER POWER SETTING METHOD
    • 记录装置和记录激光功率设定方法
    • US20100182883A1
    • 2010-07-22
    • US12690524
    • 2010-01-20
    • Kazutaka Imamura
    • Kazutaka Imamura
    • G11B7/00
    • G11B7/1267G11B7/0062
    • A recording apparatus includes: an optical head section to irradiate a laser beam onto a recording medium and perform recording, reproduction, or erase of information; a laser drive section to drive the optical head section to output the laser beam; a modulation-degree measurement section to measure a modulation degree of a signal read out by the optical head section; and a control section to execute controlling the laser drive section and the optical head section to execute the recording and the erase on a test area of the recording medium while varying a laser power, calculating a power reference value based on an erase characteristic and a reproduced signal growth characteristic in accordance with the variation of the laser power, each of the characteristics being obtained by acquiring a modulation-degree measurement value of a reproduced signal, and setting a recording laser power by using the power reference value.
    • 记录装置包括:光头部分,用于将激光束照射到记录介质上并执行信息的记录,再现或擦除; 激光驱动部,驱动光头部输出激光束; 调制度测量部分,用于测量由光头部分读出的信号的调制度; 以及控制部分,用于在改变激光功率的同时执行控制激光驱动部分和光学头部分以在记录介质的测试区域上执行记录和擦除,基于擦除特性计算功率参考值,并且再现 根据激光功率的变化的信号生长特性,通过获取再现信号的调制度测量值,并通过使用功率基准值来设定记录激光功率,获得每个特性。