Information recording medium, information reproduction apparatus, and information reproduction method
    6.
    发明授权
    Information recording medium, information reproduction apparatus, and information reproduction method 失效
    信息记录介质,信息再现装置和信息再现方法

    公开(公告)号:US06937550B2

    公开(公告)日:2005-08-30

    申请号:US10132208

    申请日:2002-04-26

    申请人: Hideaki Ohsawa

    发明人: Hideaki Ohsawa

    IPC分类号: G11B7/24 G11B7/007 G11B7/00

    CPC分类号: G11B7/00736 G11B7/24038

    摘要: An information recording medium according to an embodiment of this invention has a plurality of disk-like information recording layers, which are adhered to each other within an allowable decentering error range, and an embossed lead-in area assured on each information recording layer has first guard tracks which are formed within the range of the first radial distance from the radial position of the innermost periphery of the embossed lead-in area toward the outer periphery side, and second guard tracks which are formed within the range of the second radial distance from the radial position of the outermost periphery of the embossed lead-in area toward the inner periphery side.

    摘要翻译: 根据本发明的实施例的信息记录介质具有多个在容许偏心误差范围内彼此粘合的盘状信息记录层,并且在每个信息记录层上确保的压纹引入区具有第一 形成在从压花引入区域的最内周的径向位置朝向外周侧的第一径向距离的范围内的防护轨道,以及形成在第二径向距离 压花引入区域的最外周向内周侧的径向位置。