公开(公告)号：US20060262711A1

公开(公告)日：2006-11-23

申请号：US11236786

申请日：2005-09-28

申请人： Toshimichi Shintani ,  Yumiko Anazai ,  Akemi Hirotsune ,  Hiromi Kudo

发明人： Toshimichi Shintani ,  Yumiko Anazai ,  Akemi Hirotsune ,  Hiromi Kudo

IPC分类号： G11B7/24

CPC分类号： G11B7/00454 ,  G11B7/00456 ,  G11B7/0052 ,  G11B7/0062 ,  G11B7/24 ,  G11B7/24085

摘要： An optical disk medium in which high density recording/reproducing is possible, an information recording method and an information reproducing method using it are provided. A pit composed of a phase change material and a recording film different from it are provided on an optical disk. The phase change pit has a pattern of a single frequency. A mark having a size on the same level as the phase change pit can be formed by melting a single phase change pit while recording and controlling the optical absorbance and the temperature of the recording film at the region. A single phase change pit is molten while reproducing. Since the optical characteristics of the molten region are different from the optical characteristics of other regions, only data at the molten region can be reproduced by a super-resolution effect.

摘要翻译： 提供其中可以进行高密度记录/再现的光盘介质，信息记录方法和使用它的信息再现方法。 由相变材料和不同于其的记录膜构成的凹坑设置在光盘上。 相变凹坑具有单个频率的图案。 可以通过在记录和控制该区域的记录膜的光吸收和温度的同时，熔化单相变坑来形成具有与相变凹坑相同水平的尺寸的标记。 单个相变坑在再生时熔融。 由于熔融区域的光学特性与其他区域的光学特性不同，所以只能通过超分辨率效果再现熔融区域的数据。