发明公开
EP0838808A2 Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus
失效
信息记录介质，其指示根据Spuroszillation信息，以及信息记录和再现装置
- 专利标题： Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus
- 专利标题（中）： 信息记录介质，其指示根据Spuroszillation信息，以及信息记录和再现装置
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申请号： EP97308389.2申请日： 1997-10-22
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公开(公告)号： EP0838808A2公开(公告)日： 1998-04-29
- 发明人: Maeda, Takeshi , Miyamoto, Harukazu
- 申请人： HITACHI, LTD.
- 申请人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 100 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 100 JP
- 代理机构： Calderbank, Thomas Roger
- 优先权： JP279424/96 19961022; JP102938/97 19970421
- 主分类号： G11B7/007
- IPC分类号： G11B7/007
摘要：
An optical disk comprising a substrate 4, and a plurality of tracks 269 to 273 formed on the substrate 4, wherein the plurality of tracks 269 to 273 include groove tracks 270, 272 consisting of a plurality of grooves mutually space apart by a fixed space, and land tracks 269, 271, 273 consisting of areas between the groove tracks, wherein the borders 14, 15 between the groove tracks and the land tracks represent information using the waveforms from their wobbling patterns, wherein the period of the wobbling waveforms of the borders 14, 15 are constant on each border, but the wobbling waveforms of the opposite portions of the borders across the track are shifted in phase by a predetermined phase difference.
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