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    • 74. 发明授权
    • Information recording method, information recording medium, and information recording apparatus
    • 信息记录方法,信息记录介质和信息记录装置
    • US06650607B1
    • 2003-11-18
    • US09415263
    • 1999-10-12
    • Hidehiko KandoTakeshi MaedaHiroyuki MinemuraTsuyoshi TodaYasushi MiyauchiMitsuhide Miyamoto
    • Hidehiko KandoTakeshi MaedaHiroyuki MinemuraTsuyoshi TodaYasushi MiyauchiMitsuhide Miyamoto
    • G11B576
    • G11B7/1267G11B7/00456G11B7/0062G11B7/00736
    • A recording medium in which information is to be recorded is permitted to get into a first state by a first power level of an energy beam and permitted to get into a second state by a second power level higher than the first power level of the energy beam. The information is recorded on the recording medium by moving the energy beam and the recording medium relatively to each other and irradiating the recording medium with the energy beam so that the first and second states are formed with predetermined lengths and at predetermined intervals on the recording medium. Four power levels (first, second, third and fourth power levels) are used as the power level of the energy beam. The information is recorded while the second power level is increased to x times and the first, third and fourth power levels are increased to y times. The information recorded as described above is reproduced, and reproductive jitter is observed. The magnification factors x and y are adjusted so that the value of the reproductive jitter is not larger than a predetermined value.
    • 其中要记录信息的记录介质被允许通过能量束的第一功率电平进入第一状态,并且允许以比能量束的第一功率电平高的第二功率电平进入第二状态 。 通过相对于彼此移动能量束和记录介质并且用能量束照射记录介质,将信息记录在记录介质上,使得第一和第二状态以预定的长度形成并且以预定的间隔形成在记录介质上 。 四个功率电平(第一,第二,第三和第四功率电平)被用作能量束的功率电平。 当第二功率电平增加到x倍并且第一,第三和第四功率电平增加到y倍时,记录信息。 如上所述记录的信息被再现,并且观察到生殖抖动。 调整放大倍数x和y使得生殖抖动的值不大于预定值。