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    Phase-change optical recording medium and recording method and apparatus for the same
    5.
    发明授权
    Phase-change optical recording medium and recording method and apparatus for the same 有权
    相变光记录介质及其记录方法和装置

    公开(公告)号：US07366075B2

    公开(公告)日：2008-04-29

    申请号：US11491321

    申请日：2006-07-21

    申请人： Kazunori Ito ,  Michiharu Abe ,  Makoto Harigaya ,  Takashi Shibaguchi ,  Eiko Suzuki ,  Nobuaki Onagi ,  Hiroko Tashiro ,  Yoshiyuki Kageyama

    发明人： Kazunori Ito ,  Michiharu Abe ,  Makoto Harigaya ,  Takashi Shibaguchi ,  Eiko Suzuki ,  Nobuaki Onagi ,  Hiroko Tashiro ,  Yoshiyuki Kageyama

    IPC分类号： G11B5/09 ,  G11B7/00

    CPC分类号： G11B7/0062 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/258 ,  G11B7/259 ,  G11B7/266 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

    摘要： An optical recording medium has a phase-change recording layer containing Sb and Te as essential elements therefor, to which is added at least one element selected from the group consisting of Ag, Au, Cu, Zn, B, Al, Ga, In, Si, Ge, Sn, Pb, N, P, Bi, La, Ce, Gd, and Tb, the recording layer being capable of assuming an amorphous phase changed from a crystalline phase by the application of a laser beam thereto, thereby optically recording information. Recording marks are formed in the recording medium by converting a light emission wave of laser beam into a recording pulse train comprising a plurality of on-pulses and off-pulses, with a recording frequency being continuously changed corresponding to the location of each of the recording marks in the radial direction of said recording medium. A recording apparatus has laser beam driving circuit means, signal generation means, and signal transmission means for achieving the above recording method.

    摘要翻译： 光记录介质具有包含Sb和Te作为其必需元素的相变记录层，添加至少一种选自Ag，Au，Cu，Zn，B，Al，Ga，In， Si，Ge，Sn，Pb，N，P，Bi，La，Ce，Gd和Tb，记录层能够通过施加激光束而使结晶相发生非晶相变化，从而光记录 信息。 通过将激光束的发光波转换成包括多个导通脉冲和截止脉冲的记录脉冲串，记录标记形成在记录介质中，记录频率根据每个记录的位置而不断改变 在所述记录介质的径向上标记。 记录装置具有用于实现上述记录方法的激光束驱动电路装置，信号发生装置和信号传输装置。

    Phase-change medium usable in phase-difference tracking
    6.
    发明授权
    Phase-change medium usable in phase-difference tracking 有权
    相变介质可用于相位差跟踪

    公开(公告)号：US06426936B1

    公开(公告)日：2002-07-30

    申请号：US09236446

    申请日：1999-01-25

    申请人： Michiaki Shinotsuka ,  Hajime Yuzurihara ,  Hiroshi Deguchi ,  Hiroko Tashiro

    发明人： Michiaki Shinotsuka ,  Hajime Yuzurihara ,  Hiroshi Deguchi ,  Hiroko Tashiro

    IPC分类号： G11B724

    CPC分类号： G11B7/243 ,  G11B7/0051 ,  G11B7/0062 ,  G11B7/0906 ,  G11B7/2403 ,  G11B7/24035 ,  G11B7/24067 ,  G11B7/24079 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

    摘要： A product for recording information by use of laser light includes a recording layer being able to change between an amorphous state and a crystalline state so as to record information, the recording layer having a thickness falling within a first range defined relative to a wavelength of the laser light, a protection layer having a thickness falling within a second range defined relative to the wavelength of the laser light, a heat releasing layer having a thickness falling within a third range defined relative to the wavelength of the laser light, and a transparent substrate supporting the layers. The first, second, and third ranges are selected such that a phase of the laser light reflected by the amorphous state and a phase of the laser light reflected by the crystalline state have a phase difference larger than a predetermined phase amount.

    摘要翻译： 用于通过使用激光记录信息的产品包括能够在非晶状态和结晶状态之间变化以记录信息的记录层，所述记录层的厚度落在相对于 激光，具有落在相对于激光的波长限定的第二范围内的厚度的保护层，具有落在相对于激光的波长限定的第三范围内的厚度的散热层，以及透明基板 支持层。 选择第一，第二和第三范围使得由非晶态反射的激光的相位和由结晶状态反射的激光的相位具有大于预定相位量的相位差。

    Phase-change medium usable in phase-difference tracking
    10.
    发明授权
    Phase-change medium usable in phase-difference tracking 有权
    相变介质可用于相位差跟踪

    公开(公告)号：US06741545B2

    公开(公告)日：2004-05-25

    申请号：US10186613

    申请日：2002-07-02

    申请人： Michiaki Shinotsuka ,  Hajime Yuzurihara ,  Hiroshi Deguchi ,  Hiroko Tashiro

    发明人： Michiaki Shinotsuka ,  Hajime Yuzurihara ,  Hiroshi Deguchi ,  Hiroko Tashiro

    IPC分类号： G11B724

    CPC分类号： G11B7/243 ,  G11B7/0051 ,  G11B7/0062 ,  G11B7/0906 ,  G11B7/2403 ,  G11B7/24035 ,  G11B7/24067 ,  G11B7/24079 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

    摘要： A product for recording information by use of laser light includes a recording layer being able to change between an amorphous state and a crystalline state so as to record information, the recording layer having a thickness falling within a first range defined relative to a wavelength of the laser light, a protection layer having a thickness falling within a second range defined relative to the wavelength of the laser light, a heat releasing layer having a thickness falling within a third range defined relative to the wavelength of the laser light, and a transparent substrate supporting the layers. The first, second, and third ranges are selected such that a phase of the laser light reflected by the amorphous state and a phase of the laser light reflected by the crystalline state have a phase difference larger than a predetermined phase amount.

    摘要翻译： 用于通过使用激光记录信息的产品包括能够在非晶状态和结晶状态之间变化以便记录信息的记录层，所述记录层的厚度落入相对于 激光，具有落在相对于激光的波长限定的第二范围内的厚度的保护层，具有落在相对于激光的波长限定的第三范围内的厚度的散热层，以及透明基板 支持层。 选择第一，第二和第三范围使得由非晶态反射的激光的相位和由结晶状态反射的激光的相位具有大于预定相位量的相位差。