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    Optical recording medium having grooves and lands
    132.
    发明授权
    Optical recording medium having grooves and lands 有权
    具有凹槽和平台的光记录介质

    公开(公告)号：US06549510B2

    公开(公告)日：2003-04-15

    申请号：US10067810

    申请日：2002-02-08

    申请人： Harukazu Miyamoto ,  Hirofumi Sukeda ,  Motoyasu Terao ,  Hiroyuki Minemura ,  Tetsuo Andou

    发明人： Harukazu Miyamoto ,  Hirofumi Sukeda ,  Motoyasu Terao ,  Hiroyuki Minemura ,  Tetsuo Andou

    IPC分类号： G11B724

    CPC分类号： G11B7/24085 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/26 ,  G11B11/10578 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/2525

    摘要： An optical recording medium having grooves and lands alternately provided in a radial direction. Information recording areas are formed in both of the grooves and the lands, and prepit regions where no groove is formed. In a prepit region, first information marks are disposed on a virtual extension of a first boundary between one groove and one adjacent land and second information marks are disposed on a virtual extension of a second boundary between the one groove and an other adjacent land. The first and second information marks are disposed so as not to exist at opposing positions on both of the first and second boundaries of the one groove. The first and second information marks include at least synchronous information, and a trailing edge of the first information marks is aligned in the radial direction.

    摘要翻译： 具有沿径向方向交替设置的槽脊的光记录介质。 信息记录区域形成在两个槽和焊盘之间，以及未形成槽的预凹坑区域。 在预制区域中，第一信息标记设置在一个沟槽和一个相邻焊盘之间的第一边界的虚拟延伸部上，而第二信息标记设置在一个沟槽和另一个相邻焊盘之间的第二边界的虚拟延伸部分上。 第一信息标记和第二信息标记被布置为不存在于一个沟槽的第一和第二边界两者的相对位置处。 第一和第二信息标记至少包括同步信息，并且第一信息标记的后沿在径向上对齐。

    Optical reproducing method
    133.
    发明授权
    Optical reproducing method 有权
    光学再现方法

    公开(公告)号：US06542456B2

    公开(公告)日：2003-04-01

    申请号：US10067923

    申请日：2002-02-08

    申请人： Harukazu Miyamoto ,  Hirofumi Sukeda ,  Motoyasu Terao ,  Hiroyuki Minemura ,  Tetsuo Andou

    发明人： Harukazu Miyamoto ,  Hirofumi Sukeda ,  Motoyasu Terao ,  Hiroyuki Minemura ,  Tetsuo Andou

    IPC分类号： G11B724

    CPC分类号： G11B7/24085 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/26 ,  G11B11/10578 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/2525

    摘要： An optical reproducing method using an optical recording medium having grooves and lands alternately provided in a radial direction. Information recording areas are formed in both of the grooves and the lands, and prepit regions where a groove is not formed are provided. In a prepit region, first information marks are disposed on a virtual extension of a first boundary between one groove and one adjacent land and second information marks are disposed on a virtual extension of a second boundary between the one groove and an other adjacent land. A trailing edge of the first information marks is aligned in the radial direction. The method includes irradiating an optical spot on the optical recording medium detecting a reflected beam from the optical recording medium, and reproducing information to the optical recording medium by using a signal obtained by the reflected beam.

    摘要翻译： 一种使用光学记录介质的光学再现方法，该记录介质具有沿径向方向交替设置的凹槽和平台 信息记录区域形成在两个槽和焊盘之间，并且提供没有形成槽的预凹坑区域。 在预制区域中，第一信息标记设置在一个沟槽和一个相邻焊盘之间的第一边界的虚拟延伸部上，而第二信息标记设置在一个沟槽和另一个相邻焊盘之间的第二边界的虚拟延伸部分上。 第一信息标记的后沿在径向对准。 该方法包括在光学记录介质上照射检测来自光学记录介质的反射光束的光点，并通过使用由反射光束获得的信号将信息再现到光学记录介质。

    Optical disk medium
    134.
    发明授权
    Optical disk medium 有权
    光盘介质

    公开(公告)号：US06524766B1

    公开(公告)日：2003-02-25

    申请号：US09650728

    申请日：2000-08-30

    申请人： Tetsuo Ariyoshi ,  Motoyasu Terao ,  Takeshi Shimano ,  Toshimichi Shintani

    发明人： Tetsuo Ariyoshi ,  Motoyasu Terao ,  Takeshi Shimano ,  Toshimichi Shintani

    IPC分类号： G11B724

    CPC分类号： B82Y10/00 ,  G11B7/24 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/2595 ,  G11B2007/24306 ,  G11B2007/2432 ,  G11B2007/2571 ,  G11B2007/25713 ,  Y10S430/146

    摘要： The optical disk medium permits an increase in recording density using a complex refractive index variation of an inorganic oxide film in a super-resolution medium using an inorganic oxide film. The reflectance of the disk increases due to the complex refractive index variation of the inorganic oxide film. Specifically, in the case where the inorganic oxide film is an oxide film comprising Co, a reflect addition film is provided. The effective spot diameter used for read-out is reduced, thereby increasing recording density. By using a material for which the complex refractive index varies sharply, the recording density can be approximately doubled.

    摘要翻译： 光盘介质允许使用无机氧化物膜的超分辨率介质中的无机氧化物膜的复折射率变化来提高记录密度。 由于无机氧化物膜的复合折射率变化，盘的反射率增加。 具体地，在无机氧化物膜是包含Co的氧化膜的情况下，提供反射加成膜。 用于读出的有效光斑直径减小，从而增加记录密度。 通过使用复合折射率急剧变化的材料，记录密度可以大致加倍。

    Method of manufacturing an optical disk substrate, an apparatus of manufacturing an optical disk and an optical disk substrate
    137.
    发明授权
    Method of manufacturing an optical disk substrate, an apparatus of manufacturing an optical disk and an optical disk substrate 失效
    光盘基板的制造方法，光盘的制造装置以及光盘基板

    公开(公告)号：US06485808B2

    公开(公告)日：2002-11-26

    申请号：US09756799

    申请日：2001-01-10

    申请人： Yumiko Anzai ,  Motoyasu Terao ,  Tetsuya Nishida ,  Mokoto Miyamoto

    发明人： Yumiko Anzai ,  Motoyasu Terao ,  Tetsuya Nishida ,  Mokoto Miyamoto

    IPC分类号： B32B302

    CPC分类号： B32B27/36 ,  B29C59/16 ,  B29C2035/0827 ,  B29K2069/00 ,  B29L2017/003 ,  B29L2017/005 ,  B32B27/28 ,  G11B7/2433 ,  G11B7/252 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/26 ,  G11B2007/2571 ,  G11B2007/25713 ,  Y10T428/21

    摘要： An optical disk for recording/reproducing information tends to have fine irregularities on its substrate surface that cause an increase in noise, which irregularities are formed during the process of forming the recording layer, which is capable of changing physically or chemically in response to irradiation of laser light. This problem can deteriorate the recording and reproduction characteristics and bring about a defect on a life test or on the storage ability on the disk. To solve this problem, a method of manufacturing an optical disk having a pits-and-lands pattern employs an organic material which is modified by ultraviolet light irradiation. The transmission of the substrate is not more than 50% at one wavelength in a wavelength region from 300 to 375 nm. As a result of the ultraviolet ray irradiation, the surface of an optical disk substrate is smoothed so as to effect a reduction of the substrate noise and an improvement of the recording and reproduction characteristics. Moreover, adhesiveness between the substrate and another layer formed thereon is improved, so that the number of generated defects is reduced.

    摘要翻译： 用于记录/再现信息的光盘倾向于在其基板表面上具有微小的不规则性，导致噪声增加，在形成记录层的过程中形成不规则性，其能够响应于辐射而物理或化学变化 激光灯。 这个问题可能使记录和再现特性恶化，并且在寿命测试或磁盘上的存储能力上引起缺陷。 为了解决这个问题，制造具有凹凸图案的光盘的方法采用通过紫外线照射改性的有机材料。 在300〜375nm的波长范围内的一个波长的基板的透射率不超过50％。 作为紫外线照射的结果，光盘基板的表面被平滑化，以便实现基板噪声的降低和记录和再现特性的提高。 此外，基板与其上形成的另一层之间的粘附性得到改善，从而减少了所产生的缺陷的数量。