发明公开
- 专利标题： Optical information recording apparatus and optical recording medium
- 专利标题（中）： 光学信息记录装置和光学记录介质
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申请号： EP02023051.2申请日： 1996-02-09
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公开(公告)号： EP1282118A2公开(公告)日： 2003-02-05
- 发明人: Miyamoto, Harukazu , Minemura, Hiroyuki , Sugiyama, Hisataka
- 申请人： Hitachi, Ltd.
- 申请人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo JP
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo JP
- 代理机构： Strehl Schübel-Hopf & Partner
- 优先权： JP2494995 19950214
- 主分类号： G11B7/013
- IPC分类号： G11B7/013 ; G11B7/005
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.
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.
公开/授权文献
- EP1282118B1 Optical recording medium 公开/授权日：2012-10-10
信息查询
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