发明名称 Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus
摘要 An optical disk comprising a substrate, and a plurality of tracks formed on the substrate, wherein the plurality of tracks include groove tracks consisting of a plurality of grooves mutually space apart by a fixed space, and land tracks consisting of areas between the groove tracks, wherein the borders 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 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.
申请公布号 US6560175(B2) 申请公布日期 2003.05.06
申请号 US20010968002 申请日期 2001.10.02
申请人 HITACHI, LTD. 发明人 MAEDA TAKESHI;MIYAMOTO HARUKAZU
分类号 G11B7/007;G11B7/26;G11B27/19;G11B27/24;G11B27/30;(IPC1-7):G11B5/09 主分类号 G11B7/007
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