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    Phase-change optical recording medium and reproducing method thereof
    2.
    发明公开
    Phase-change optical recording medium and reproducing method thereof 有权
    Optisches Phasenwechselaufzeichnungsmedium und Wiedergabeverfahrendafür

    公开(公告)号：EP1672622A1

    公开(公告)日：2006-06-21

    申请号：EP05027211.1

    申请日：2005-12-13

    申请人： Ricoh Company, Ltd.

    发明人： Deguchi, Hiroshi ,  Ito, Kazunori ,  Hibino, Eiko ,  Ohkura, Hiroko ,  Kato, Masaki ,  Abe, Mikiko ,  Sekiguchi, Hiroyoshi

    IPC分类号： G11B7/006 ,  G11B7/243

    CPC分类号： G11B7/006 ,  G11B7/243 ,  G11B2007/24312

    摘要： The phase-change optical recording medium having a substrate, and at least a first protective layer, a recording layer composed of a phase-change material, a second protective layer and a reflective layer disposed on the substrate in this sequence has a maximum recording linear velocity V H of 20m/s to 60m/s, a range of linear velocity recordable even when the recording linear velocity is continuously changed of 0.3V H to 1.0V H , and no occurrence of crystals causing a reproduction error in recorded marks.

    摘要翻译： 具有基板的至少第一保护层，由相变材料，第二保护层和设置在该基板上的反射层构成的记录层的相变光学记录介质具有最大的记录线性 速度VH为20m / s至60m / s，即使记录线速度连续地变化为0.3VH至1.0VH也能够记录线速度范围，并且不会引起晶体在记录标记中引起再现错误。

    Optical recording method
    5.
    发明公开
    Optical recording method 有权
    的光记录方法

    公开(公告)号：EP1431966A3

    公开(公告)日：2007-03-21

    申请号：EP03257991.4

    申请日：2003-12-18

    申请人： Ricoh Company, Ltd.

    发明人： Yuzurihara, Hajime ,  Abe, Mikiko ,  Deguchi, Hiroshi ,  Hibino, Eiko ,  Miura, Hiroshi ,  Ito, Kazunori ,  Abe, Michiharu

    IPC分类号： G11B7/006 ,  G11B7/0045

    CPC分类号： G11B7/0062

    摘要： An optical recording method of recording information to a phase change optical recording medium with alternate application of peak power and bias power in a pulse manner and with changing a pulse application interval continuously from an inner part through an outer part of the recording medium with an interval proportional to a window width Tw and a fixed interval, comprising the step of starting a top peak power application interval with a delay from a data input pulse signal starting time for a target mark length nTw, where n denotes an integer in a range between 3 and 14, with changing the delay in proportion to the window width Tw with changing a proportionality factor discretely with respect each linear velocity.