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    • 9. 发明授权
    • High density disk recording medium and apparatus using the same
    • 高密度盘记录介质及使用其的装置
    • US07515524B2
    • 2009-04-07
    • US10892879
    • 2004-07-16
    • Jin Yong KimKyung Chan Park
    • Jin Yong KimKyung Chan Park
    • G11B3/70
    • G11B7/08511G11B7/24097G11B23/0035
    • The present invention relates to a high-density disk that is structured to prevent a collision of an optical pickup's objective lens with the high-density disk if the disk is placed upside down in a disk device that is able to record and reproduce signals to/from the high-density disk. A high-density disk recording medium according to the present invention is structured such that, wherein a recording layer having high-density pit patterns is offset from a center plane of disk thickness, both sides of a clamping zone bisected by the center plane have differing thicknesses. One or both sides may protrude from surface of the disk recording medium, or one side of the clamping zone may protrude from the surface while the other side is indented below the surface.
    • 本发明涉及一种高密度盘,其被构造为防止光学拾取器的物镜与高密度盘的碰撞,如果盘被倒置放置在能够记录和再现信号到/ 从高密度磁盘。 根据本发明的高密度盘记录介质被构造成使得其中具有高密度凹坑图案的记录层偏离圆盘厚度的中心平面,由中心平面划分的夹紧区域的两侧具有不同的 厚度 一个或两个侧面可以从盘记录介质的表面突出,或者夹持区域的一侧可以从表面突出,而另一侧在表面下方凹入。