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    • 4. 发明申请
    • Recording method for a phase change optical disc
    • 相变光盘的记录方法
    • US20050094529A1
    • 2005-05-05
    • US10941949
    • 2004-09-16
    • Kwang LeeJin KimHun SeoSeung LeeKeum Kwak
    • Kwang LeeJin KimHun SeoSeung LeeKeum Kwak
    • G11B7/0045G11B7/006G11B3/00
    • G11B7/0062G11B7/00454
    • A recording method for a phase change optical disk is disclosed. To prevent crystalline material from growing at the leading portion of predetermined marks, e.g. marks 4T or more in length, the interval between the first pulse and multi pulses among write pulses for forming marks 4T or more in length is increased by delaying the multi pulses against a reference clock and the widths or levels of the multi pulses are also increased. In another embodiment, to prevent a change in the starting positions of marks due to the increase of the interval between the first pulse and multi pulses, the last pulse among write pulses for forming marks 3T or more in length is advanced by a predefined time period. In still another embodiment, the interval between the first pulse and multi pulses among write pulses for forming marks 4T or more in length is increased and the starting position of the first pulse, the starting position and width of the last pulse, a trailing edge cooling time deviation are individually adjusted depending on the length of marks.
    • 公开了一种用于相变光盘的记录方法。 为了防止结晶材料在预定标记的引导部分生长,例如, 在长度上标记为4T或更大,通过将多个脉冲相对于参考时钟延迟并且多个脉冲的宽度或电平是多个脉冲,来增加用于形成长度为4T或更大的标记的写脉冲之间的第一脉冲和多脉冲之间的间隔 也增加了。 在另一个实施例中,为了防止由于第一脉冲和多脉冲之间的间隔的增加引起的标记的起始位置的变化,用于形成长度为3T或更大的标记的写脉冲之间的最后脉冲提前预定时间 期。 在又一个实施例中,用于形成长度为4T或更大的标记的写脉冲之间的第一脉冲和多脉冲之间的间隔增加,并且第一脉冲的起始位置,最后脉冲的起始位置和宽度,后沿 冷却时间偏差根据标记的长度单独调整。
    • 6. 发明申请
    • Super resolution optical disc
    • 超分辨率光盘
    • US20050170133A1
    • 2005-08-04
    • US10971332
    • 2004-10-21
    • Kun AhnKeum KwakJin Kim
    • Kun AhnKeum KwakJin Kim
    • B32B3/02G11B7/24G11B7/257
    • G11B7/24B82Y30/00G11B7/257
    • Disclosed is a super resolution optical disc. The super resolution optical disc comprises at least two mask layers. In one embodiment, the super resolution optical mask comprises a plurality of mask layers and impact absorption layers between the mask layers, and may further comprise diffusing prevention layers between the mask layer and the impact absorption layer. In another embodiment, the super resolution optical mask comprises a plurality of recording layers and dielectric layers separating the recording layers, each of the recording layers including two mask layers and an impact absorption layer between the mask layers or including two mask layers, an impact absorption layer between the mask layers, and diffusion preventing layers between the mask layer and the impact absorption layer. Accordingly, recording marks have an enhanced shape at an outer periphery of the marks, thereby enhancing the quality of the reproduction signal and enabling high-density multi-level recording.
    • 公开了一种超分辨率光盘。 超分辨率光盘包括至少两个掩模层。 在一个实施例中,超分辨率光学掩模包括在掩模层之间的多个掩模层和冲击吸收层,并且还可以包括在掩模层和冲击吸收层之间的防扩散层。 在另一个实施例中,超分辨率光学掩模包括分离记录层的多个记录层和电介质层,每个记录层包括两个掩模层和在掩模层之间的冲击吸收层或包括两个掩模层,冲击吸收 掩模层之间的层,以及掩模层和冲击吸收层之间的扩散防止层。 因此,记录标记在标记的外周具有增强的形状,从而提高再现信号的质量并实现高密度多级记录。