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    Optical recording medium
    1.
    发明授权
    Optical recording medium 失效
    光记录介质

    公开(公告)号：US06692809B2

    公开(公告)日：2004-02-17

    申请号：US10022417

    申请日：2001-12-20

    申请人： Makoto Matsukawa ,  Seiro Oshima ,  Toshihiko Takishita

    发明人： Makoto Matsukawa ,  Seiro Oshima ,  Toshihiko Takishita

    IPC分类号： B32B302

    CPC分类号： G11B7/2578 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24076 ,  G11B7/24079 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716 ,  Y10T428/21

    摘要： An optical recording medium is provided which comprises: a substrate including concentrically or spirally formed grooves each having a V-shaped cross section; a first dielectric layer formed on the substrate; a phase-change recording layer formed on the first dielectric layer; a second dielectric layer formed on the phase-change recording layer; and a metallic reflecting layer formed on the second dielectric layer. In particular, the optical recording medium is so formed that an objective lens having an aperture number of 0.55-0.70 can be used and a laser beam having a wavelength of 600-700 nm and passing through the objective lens is passed through the substrate and then converged on the recording layer, thereby recording or reproducing information on the recording layer in areas corresponding to the grooves. Specifically, the optical recording medium further comprises a third dielectric layer consisting of a nitride, the third dielectric layer being disposed between the first dielectric layer and the phase-change recording layer. In this way, it is possible to prevent a deterioration possibly caused due to a heat in the boundary between the first dielectric layer and the second dielectric layer, thereby greatly increasing the number of possible times for over-write recording.

    摘要翻译： 提供了一种光学记录介质，其包括：基板，包括各自具有V形横截面的同心或螺旋形成的凹槽; 形成在所述基板上的第一电介质层; 形成在所述第一电介质层上的相变记录层; 形成在所述相变记录层上的第二电介质层; 以及形成在所述第二电介质层上的金属反射层。 特别地，光记录介质的形成使得可以使用具有孔数为0.55-0.70的物镜，并且通过穿过物镜的波长为600-700nm并穿过物镜的激光束然后 会聚在记录层上，从而在对应于凹槽的区域中在记录层上记录或再现信息。 具体地，光记录介质还包括由氮化物构成的第三介电层，第三介电层设置在第一介电层和相变记录层之间。 以这种方式，可以防止可能由于第一介电层和第二介电层之间的边界中的热量而引起的劣化，从而大大增加了用于重写记录的可能时间的数量。

    Offset amount measuring method and apparatus
    2.
    发明授权
    Offset amount measuring method and apparatus 失效
    偏移量测量方法和装置

    公开(公告)号：US07548499B2

    公开(公告)日：2009-06-16

    申请号：US11301245

    申请日：2005-12-13

    申请人： Takao Tagiri ,  Seiro Oshima

    发明人： Takao Tagiri ,  Seiro Oshima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24038 ,  G11B7/0953

    摘要： An offset amount measuring method is provided with: a recording process for measurement (i) of recording information for measurement, into a recording track in the L0 layer, by a predetermined section, from a measurement reference position, and of (ii) recording the information for measurement, into a recording track in the L1 layer, by the predetermined section, from or toward a measurement correspondence position, which is associated with the measurement reference position by the pre-format address; a first detecting process of detecting a border of a first recorded area in which the information for measurement is recorded and a first unrecorded area in the first recording track, on the basis of a difference in reflectance between the first recorded area and the first unrecorded area; a second detecting process of detecting a second border position in the recording track in the L1 layer, on the basis of a difference in reflectance; and a determining process of determining the offset amount, on the basis of the detected first and second border positions. Moreover, it is also provided with a judging process of judging whether or not the determined offset amount is within tolerance with respect to the first offset amount set in advance for offset countermeasures.

    摘要翻译： 偏移量测量方法具有：用于测量记录信息的记录处理（i），用于测量记录信息，从测量参考位置到预定部分到L0层中的记录轨道，以及（ii）记录 用于测量的信息通过预格式地址与测量参考位置相关联的测量对象位置从L1层的记录轨道到预定区间; 基于第一记录区域和第一未记录区域之间的反射率差，检测其中记录有用于测量的信息的第一记录区域和第一记录轨道中的第一未记录区域的边界的第一检测处理 ; 基于反射率差来检测L1层中的记录轨道中的第二边界位置的第二检测处理; 以及基于检测到的第一和第二边界位置来确定偏移量的确定处理。 此外，还提供了一种判断处理，该判断处理判断所确定的偏移量是否在针对偏移对策预先设定的第一偏移量的公差内。

    Information recording medium
    3.
    发明申请
    Information recording medium 审中-公开
    信息记录介质

    公开(公告)号：US20070184231A1

    公开(公告)日：2007-08-09

    申请号：US10589672

    申请日：2005-02-15

    申请人： Kazuo Kuroda ,  Toshio Suzuki ,  Eiji Muramatsu ,  Masahiro Kato ,  Toshihiko Takishita ,  Seiro Oshima ,  Atsushi Kondo

    发明人： Kazuo Kuroda ,  Toshio Suzuki ,  Eiji Muramatsu ,  Masahiro Kato ,  Toshihiko Takishita ,  Seiro Oshima ,  Atsushi Kondo

    IPC分类号： B32B3/02

    CPC分类号： G11B7/266 ,  G11B7/24038

    摘要： An information recording medium (100) includes: a first recording layer (107); a semitransparent reflective film (108) to reflect at least one portion of laser light for recording with which the first recording layer is irradiated; a second recording layer (207) which is irradiated with the laser light for recording through the first recording layer and the semitransparent reflective film; and a reflective film (208) to reflect the laser light for recording with which the second recording layer is irradiated, thermal conductivity from the second recording layer to the reflective film when the second recording layer is irradiated with the laser light for recording being substantially equal to thermal conductivity from the first recording layer to the semitransparent reflective film when the first recording layer is irradiated with the laser light for recording

    摘要翻译： 信息记录介质（100）包括：第一记录层（107）; 半透明反射膜（108），用于反射用于记录第一记录层的激光的至少一部分; 第二记录层（207），其通过第一记录层和半透明反射膜照射用于记录的激光; 以及反射膜（208），用于反射用于第二记录层照射的用于记录的激光，当第二记录层被用于记录的激光照射时，从第二记录层到反射膜的热传导率基本相等 当第一记录层被用于记录的激光照射时，从第一记录层到半透明反射膜的热导率

    Optical disc
    4.
    发明申请
    Optical disc 有权
    光盘

    公开(公告)号：US20070081437A1

    公开(公告)日：2007-04-12

    申请号：US11543797

    申请日：2006-10-06

    申请人： Seiro Oshima ,  Toshihiko Takishita ,  Eiji Muramatsu ,  Hiroshi Nishiwaki

    发明人： Seiro Oshima ,  Toshihiko Takishita ,  Eiji Muramatsu ,  Hiroshi Nishiwaki

    IPC分类号： G11B15/52

    CPC分类号： G11B7/00736 ,  G11B7/24079 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/00268 ,  G11B2220/2541 ,  G11B2220/2562

    摘要： A recording layer close to a disc surface is divided into at least two recording areas, a main information recording area D1A and an auxiliary information area (BCA) D1C. Grooves are formed in the main information recording area D1A. Marks M are formed in barcode form representing identifying information in the auxiliary information recording area (BCA) D1C. Track grooves G1 or prepits are formed in the recording layer of the auxiliary information recording area (BCA) D1C and have a depth smaller than that of the groove formed in the main information recording area D1A.

    摘要翻译： 靠近盘表面的记录层被分成至少两个记录区域，主要信息记录区域D 1A和辅助信息区域（BCA）D 1 C.在主信息记录区域D1A中形成沟槽。 标记M以表示辅助信息记录区域（BCA）D1C中的识别信息的条形码形式形成。在辅助信息记录区域（BCA）D1C的记录层中形成轨道槽G 1或预凹坑，并且具有 深度小于在主信息记录区域D1中形成的槽的深度。

    Offset amount measuring method and apparatus
    6.
    发明申请
    Offset amount measuring method and apparatus 失效

    公开(公告)号：US20060133244A1

    公开(公告)日：2006-06-22

    申请号：US11301245

    申请日：2005-12-13

    申请人： Takao Tagiri ,  Seiro Oshima

    发明人： Takao Tagiri ,  Seiro Oshima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24038 ,  G11B7/0953

    摘要： An offset amount measuring method is provided with: a recording process for measurement (i) of recording information for measurement, into a recording track in the L0 layer, by a predetermined section, from a measurement reference position, and of (ii) recording the information for measurement, into a recording track in the L1 layer, by the predetermined section, from or toward a measurement correspondence position, which is associated with the measurement reference position by the pre-format address; a first detecting process of detecting a border of a first recorded area in which the information for measurement is recorded and a first unrecorded area in the first recording track, on the basis of a difference in reflectance between the first recorded area and the first unrecorded area; a second detecting process of detecting a second border position in the recording track in the L1 layer, on the basis of a difference in reflectance; and a determining process of determining the offset amount, on the basis of the detected first and second border positions. Moreover, it is also provided with a judging process of judging whether or not the determined offset amount is within tolerance with respect to the first offset amount set in advance for offset countermeasures.

    Optical disc
    10.
    发明授权
    Optical disc 有权
    光盘

    公开(公告)号：US07768901B2

    公开(公告)日：2010-08-03

    申请号：US11543797

    申请日：2006-10-06

    申请人： Seiro Oshima ,  Toshihiko Takishita ,  Eiji Muramatsu ,  Hiroshi Nishiwaki

    发明人： Seiro Oshima ,  Toshihiko Takishita ,  Eiji Muramatsu ,  Hiroshi Nishiwaki

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/24079 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/00268 ,  G11B2220/2541 ,  G11B2220/2562

    摘要： A recording layer close to a disc surface is divided into at least two recording areas, a main information recording area D1A and an auxiliary information area (BCA) D1C. Grooves are formed in the main information recording area D1A. Marks M are formed in barcode form representing identifying information in the auxiliary information recording area (BCA) D1C. Track grooves G1 or prepits are formed in the recording layer of the auxiliary information recording area (BCA) D1C and have a depth smaller than that of the groove formed in the main information recording area D1A.

    摘要翻译： 靠近盘表面的记录层被分成至少两个记录区域，主要信息记录区域D1A和辅助信息区域（BCA）D1C。 沟槽形成在主信息记录区D1A中。 标记M以表示辅助信息记录区域（BCA）D1C中的识别信息的条形码形式形成。 在辅助信息记录区域（BCA）D1C的记录层中形成轨道槽G1或预凹坑，其深度小于在主信息记录区域D1A中形成的槽的深度。