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    • 36. 发明授权
    • Information recording device and information recording method
    • 信息记录装置和信息记录方法
    • US07301875B2
    • 2007-11-27
    • US10890176
    • 2004-07-14
    • Isao IchimuraTsutomu MaruyamaYuichi SabiKiyoshi Osato
    • Isao IchimuraTsutomu MaruyamaYuichi SabiKiyoshi Osato
    • G11B7/00
    • G11B7/1369G11B7/00456G11B7/13927
    • An optimum performance is achieved relative to write-once type optical recording mediums on which information is recorded by means of a blue-violet semiconductor laser. An optical disc recording/reproduction apparatus 10 comprises an LD control section 17 adapted to control the irradiation power of a laser when writing data. If the cycle of the channel clock is T, when forming a recording mark having a length of n×T (n being an integer not smaller than 2), a pulse beam is irradiated onto the write-once type information recording medium for n/2 times (decimals, if any, being to be rounded down). When forming a recording mark having a length of not smaller than 6T and even number times of T, a pulse beam is irradiated for n/2 times with all the intermediate pulse beams synchronized with the phase of the channel clock except the leading pulse beam and the tail end pulse beam. When forming a recording mark having a length of not smaller than 6T and odd number times of T, a pulse beam is irradiated with all the intermediate pulse beams delayed from the phase of the channel clock by T/2 except the leading pulse beam and the tail end pulse beam.
    • 相对于其上通过蓝紫色半导体激光器记录信息的一次写入型光学记录介质,实现了最佳性能。 光盘记录/再现装置10包括LD控制部分17,其适于在写入数据时控制激光器的照射功率。 如果通道时钟的周期为T,则当形成长度为n×T(n为2以上的整数)的记录标记时,将脉冲光束照射到一次写入型信息记录介质上n / 2次 (小数,如果有的话)被四舍五入)。 当形成长度不小于6T且偶数次T的记录标记时,除了前导脉冲波束之外,与除了通道时钟的相位同步的所有中间脉冲波束照射脉冲束n / 2次, 尾端脉冲光束。 当形成长度不小于6T且奇数倍的记录标记时,除了前导脉冲波束之外,从通道时钟的相位延迟的所有中间脉冲波束照射脉冲光束T / 2, 尾端脉冲束。