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    • 10. 发明授权
    • Adaptive writing method for high-density optical recording apparatus and circuit thereof
    • 高密度光记录装置的自适应写入方法及其电路
    • US08305857B2
    • 2012-11-06
    • US13107333
    • 2011-05-13
    • Jin-gyo SeoSeong-sin JooDu-seop YoonMyung-do RohYong-jin AhnSeoung-soo KimKyung-geun LeeMyeong-ho ChoChang-Jin YangJong-kyu KimSung-ro KoTatsuhiro Ohtsuka
    • Jin-gyo SeoSeong-sin JooDu-seop YoonMyung-do RohYong-jin AhnSeoung-soo KimKyung-geun LeeMyeong-ho ChoChang-Jin YangJong-kyu KimSung-ro KoTatsuhiro Ohtsuka
    • G11B7/00
    • G11B7/00456G11B7/0062G11B7/00718G11B7/126G11B7/1267G11B20/10009
    • An apparatus configured to write input data on an optical recording medium using a write pulse waveform, the write pulse waveform including a first pulse, a last pulse and a multi-pulse train, is provided. The apparatus includes a discriminator configured to discriminate a magnitude of a present mark and a magnitude of a leading space from the input data, a write waveform controller configured to control the write pulse waveform to generate an adaptive write pulse waveform by varying a position of a rising edge of a first pulse of the present mark to be written according to the magnitude of the present mark and the magnitude of the leading space, and use a grouping table to control the write pulse waveform to generate the adaptive write pulse waveform, the grouping table being configured to store rising edge data of the first pulse of the write pulse waveform varying according to corresponding stored values of magnitudes of present marks and magnitudes of leading spaces, and a processor configured to process the input data on the optical recording medium using the adaptive write pulse waveform. The discriminator is further configured to apply the magnitude of the present mark and the magnitude of the leading space to the write waveform controller. The adaptive write pulse waveform is generated without regard for a trailing space of the present mark being written using the adaptive write pulse waveform. A width of the first pulse is varied by varying the position of the rising edge.
    • 一种被配置为使用写入脉冲波形将输入数据写入光学记录介质的装置,提供包括第一脉冲,最后脉冲和多脉冲串的写入脉冲波形。 该装置包括:鉴别器,被配置为鉴别当前标记的大小和前导空间的幅度与输入数据;写入波形控制器,被配置为通过改变位置来控制写入脉冲波形以产生自适应写入脉冲波形 根据当前标记的大小和前导空间的大小对当前标记的第一脉冲的上升沿进行写入,并使用分组表来控制写入脉冲波形以生成自适应写入脉冲波形,分组 表被配置为存储写入脉冲波形的第一脉冲的上升沿数据,该上升沿数据根据当前标记的大小和引导空间的幅度的相应存储值而变化,以及处理器,被配置为使用该记录介质处理光学记录介质上的输入数据 自适应写入脉冲波形。 鉴别器还被配置为将当前标记的大小和前导空间的大小应用于写入波形控制器。 产生自适应写入脉冲波形,而不考虑使用自适应写入脉冲波形写入当前标记的拖尾空间。 通过改变上升沿的位置来改变第一脉冲的宽度。