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    • 4. 发明专利
    • Information recording medium showing information by using oscillation of track and information recording replay device
    • 通过使用轨迹和信息记录重置装置的振荡来显示信息记录介质
    • JP2012022770A
    • 2012-02-02
    • JP2011185466
    • 2011-08-29
    • Hitachi Ltd株式会社日立製作所
    • MAEDA TAKESHIMIYAMOTO JIICHI
    • G11B7/007G11B7/005G11B7/24G11B7/26G11B27/19G11B27/24G11B27/30
    • G11B7/00718G11B7/0053G11B7/007G11B7/00745G11B7/24082G11B7/261G11B27/19G11B27/24G11B27/3027G11B2220/20
    • PROBLEM TO BE SOLVED: To provide an information recording medium in which address information is recorded so that information can be recorded or replayed on a track targeted at the time of record or replay while enhancing the track density.SOLUTION: An information recording medium has a substrate 4 and a plurality of tracks 269 to 273 formed on the substrate 4. The plurality of tracks 269 to 273 are made from track grooves 270 and 272 made from a plurality of grooves formed on the substrate 4 with a predetermined distance and land tracks 269, 271 and 273 made from regions between the groove tracks. Interfaces 14, 15 between the groove tracks and the land track show information by using oscillation wave form. The period of the oscillation wave form of the interfaces 14, 15 are constant for each interface. The phase of the oscillation wave form of the interfaces 14, 15 is set such that the oscillation wave form at the position where the interfaces face each other, sandwiching the track, is deviated by a preset phase difference.
    • 要解决的问题:提供一种其中记录地址信息的信息记录介质,使得可以在提高轨道密度的同时在记录或重放时的目标轨道上记录或重放信息。 解决方案:信息记录介质具有基板4和形成在基板4上的多个轨道269至273.多个轨道269至273由轨道槽270和272制成,轨道槽270和272由形成在 具有预定距离的基板4和由凹槽轨道之间的区域制成的凸台轨道269,271和273。 凹槽轨道和槽脊轨道之间的接口14,15通过使用振荡波形显示信息。 接口14,15的振荡波形的周期对于每个接口是恒定的。 接口14,15的振荡波形的相位被设定为使得在夹着轨道的界面彼此面对的位置处的振荡波形成偏移预设相位差。 版权所有(C)2012,JPO&INPIT