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108 条记录 (耗时 0.015 秒)

    Optical information recording apparatus and optical recording medium
    3.
    发明公开
    Optical information recording apparatus and optical recording medium 失效
    Optische Informationsaufziechnungsvorrichtung et optisches Aufzeichnungsmedium

    公开(公告)号：EP1282118A3

    公开(公告)日：2005-10-19

    申请号：EP02023051.2

    申请日：1996-02-09

    申请人： Hitachi, Ltd.

    发明人： Miyamoto, Harukazu ,  Minemura, Hiroyuki ,  Sugiyama, Hisataka

    IPC分类号： G11B7/007 ,  G11B11/10 ,  G11B7/09 ,  G11B7/013

    CPC分类号： G11B11/10565 ,  G11B7/0053 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/24079 ,  G11B7/24085 ,  G11B7/26 ,  G11B11/10576 ,  G11B11/10578 ,  G11B11/10584 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2525

    摘要： An optical recording medium is disclosed in which the tracks include groove portions and land portions alternately arranged in the radial direction, wherein a plurality of prepits including the address information prepits of first and second prepits portions are meanderingly arranged with respect to center lines of the groove and land portions; and wherein prepits among the plurality of prepits are arranged at a predetermined interval such that specific prepits present in the meanderingly arranged prepits are always reproduced when an optical spot having a predetermined spot diameter irradiated on the optical recording medium scans the information recording area in the circumferential direction.
    An optical information processing apparatus for such a medium is also disclosed. The apparatus has means to irradiate a light spot having a predetermined spot diameter such that one specific prepit among the prepits is always reproduced.

    摘要翻译： 在具有形成在基板上的沟槽（84）和焊盘（85）的光盘记录介质和与槽和焊盘两者相关联地形成的信息记录区域中，预凹坑（82）设置在 凹槽（84）和平台（85），所述预凹坑被设置成满足这样的要求：将预凹坑设置在凹槽的中心线的虚拟延伸部的两侧，将预凹坑设置在虚拟的两侧 延伸地面的中心线，在槽的中心线上的位置的两侧不存在预凹坑，并且在凹槽的中心线上的位置的两侧不存在预凹坑。

    Optical information storage medium having lands and grooves both serving as recording tracks
    7.
    发明公开
    Optical information storage medium having lands and grooves both serving as recording tracks 有权
    具有作为凹凸记录轨道的光学信息记录介质

    公开(公告)号：EP1039452A2

    公开(公告)日：2000-09-27

    申请号：EP99118988.7

    申请日：1999-09-27

    申请人： FUJITSU LIMITED

    发明人： Morimoto, Yasuaki, c/o Fujitsu Limited

    IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B11/105 ,  G11B7/24

    CPC分类号： G11B7/24085 ,  G11B7/007 ,  G11B7/00745 ,  G11B7/0938 ,  G11B11/10565 ,  G11B11/10578

    摘要： An optical information recording medium having a plurality of grooves (26) and a plurality of lands (28) alternately formed. Each groove (26) and each land (28) function as recording tracks. The medium includes a first header region (34) having a plurality of first phase pits (38) respectively formed on extensions of the plurality of lands (28), and a second header region (32) having a plurality of second phase pits (36) respectively formed on extensions of the plurality of grooves (26). Each groove (26) has an optical depth of about 3λ/8 where λ is the wavelength of a light beam to be used. Each first phase pit (38) has an optical depth smaller than that of each groove (26). Each second phase pit (36) has an optical depth substantially equal to that of each groove (26) . The first header region (34) and the second header region (32) are shifted from each other along the extension of each groove (26) .