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    Method for centering a hub in an optical disc, and an optical storage system using such disc
    2.
    发明授权
    Method for centering a hub in an optical disc, and an optical storage system using such disc 失效
    用于使光盘中的集线器居中的方法，以及使用这种盘的光存储系统

    公开(公告)号：US6154441A

    公开(公告)日：2000-11-28

    申请号：US839874

    申请日：1997-04-17

    Applicant: Chad R. Sandstrom ,  Brian T. Bonn

    Inventor： Chad R. Sandstrom ,  Brian T. Bonn

    IPC: G11B7/095 ,  G11B7/24 ,  G11B7/26 ,  G11B17/028 ,  G11B23/00

    CPC classification number: G11B23/0035 ,  G11B17/028 ,  G11B7/24 ,  G11B7/26 ,  G11B7/0953

    Abstract: Optical storage system including a disc drive and an optical media having a low radial total indicated runout and method of manufacturing such media. The optical media includes a disc substrate having a formatted surface and a center hole. A disc alignment mechanism is provided, wherein the concentric registration of the formatted surface is specified relative to the disc alignment mechanism. A hub having a center hole is positioned at the disc center hole, wherein the hub center hole is centered relative to the disc alignment mechanism. The disc drive includes a drive spindle and a center pin extending from the drive spindle for centering the drive spindle to the optical media.

    Abstract translation: 光存储系统包括盘驱动器和具有低径向总指示的跳动的光学介质和制造这种介质的方法。 光学介质包括具有格式化表面和中心孔的盘基片。 提供了盘对准机构，其中相对于盘对准机构指定格式化表面的同心配准。 具有中心孔的轮毂定位在盘中心孔处，其中轮毂中心孔相对于盘对准机构居中。 磁盘驱动器包括驱动主轴和从驱动主轴延伸的中心销，用于将驱动主轴定心到光学介质。

    Replicated regions on optical disks
    3.
    发明授权
    Replicated regions on optical disks 失效
    复制光盘上的区域

    公开(公告)号：US06638692B1

    公开(公告)日：2003-10-28

    申请号：US09906357

    申请日：2001-07-16

    Applicant: Anthony O. Banal ,  Ted L. Bahns ,  Kristi L. Chavez ,  Donald J. Kerfeld ,  Chad R. Sandstrom

    Inventor： Anthony O. Banal ,  Ted L. Bahns ,  Kristi L. Chavez ,  Donald J. Kerfeld ,  Chad R. Sandstrom

    IPC: G11B726

    CPC classification number: G11B7/263 ,  G11B7/261 ,  Y10S430/146

    Abstract: The invention is directed toward techniques for stamping optical data storage disks. A master is first created to include several distinct information regions etched upon a master surface. The master is then used to create one or more stampers. The stampers include a number of distinct stamper regions in locations corresponding to locations of the distinct information regions on the master. The stamper is then used to create a number of first replica disks that include distinct replicated regions. The distinct replicated regions are removed from the first replica disks to define second disks.

    Abstract translation: 本发明涉及冲压光学数据存储盘的技术。 首先创建一个主人以包括蚀刻在主表面上的几个不同的信息区域。 然后，主人员用于创建一个或多个压模。 压模在与母板上的不同信息区域的位置对应的位置中包括多个不同的压模区域。 然后，压模用于创建包括不同复制区域的多个第一副本盘。 不同的复制区域从第一副本磁盘中移除以定义第二个磁盘。

    Hubless optical disc having low radial runout and method of manufacture
    5.
    发明授权
    Hubless optical disc having low radial runout and method of manufacture 失效
    具有低径向跳动的无轮光盘和制造方法

    公开(公告)号：US6002663A

    公开(公告)日：1999-12-14

    申请号：US839933

    申请日：1997-04-17

    Applicant: Chad R. Sandstrom

    Inventor： Chad R. Sandstrom

    IPC: B29C45/26 ,  B29D17/00 ,  G11B7/004 ,  G11B7/095 ,  G11B7/24 ,  G11B7/26 ,  G11B17/022 ,  G11B23/00 ,  G11B3/70 ,  G11B25/00

    CPC classification number: G11B23/0035 ,  B29C45/263 ,  B29D17/005 ,  G11B7/24 ,  G11B7/263 ,  G11B7/0953 ,  Y10S425/81

    Abstract: Hubless optical disc having low radial runout. The optical disc is capable of containing a high capacity of information therein. The optical disc includes a disc substrate having a formatted surface. A mechanism is provided within the disc substrate for mating the optical disc with a drive spindle, wherein the formatted surface is concentrically registered relative to the mechanism within the disc substrate. In one embodiment, the mechanism may comprise an annular groove, annular ridge, or a plurality of holes molded in the disc substrate. The present invention includes optical tooling for forming the hubless optical disc having low radial runout. The present invention further includes an optical disc player drive spindle capable of mating with the high-capacity hubless optical disc.

    Abstract translation: 具有低径向跳动的无轮光盘。 光盘能够在其中容纳高容量的信息。 光盘包括具有格式化表面的盘基片。 在盘基片内提供一机构，用于将光盘与驱动心轴配合，其中格式化表面相对于盘基片内的机构同心配准。 在一个实施例中，该机构可以包括在盘基片中模制的环形槽，环形脊或多个孔。 本发明包括用于形成具有低径向跳动的无轮毂光盘的光学工具。 本发明还包括能够与大容量无轮毂光盘配合的光盘播放器驱动主轴。

    Mold for manufacturing double-sided disk shaped articles for storing data
    6.
    发明授权
    Mold for manufacturing double-sided disk shaped articles for storing data 失效

    公开(公告)号：US06678238B1

    公开(公告)日：2004-01-13

    申请号：US09474174

    申请日：1999-12-29

    Applicant: Douglas R. Plourde ,  Dean E. Sitz ,  Jeffrey M. Novotny ,  Chad R. Sandstrom

    Inventor： Douglas R. Plourde ,  Dean E. Sitz ,  Jeffrey M. Novotny ,  Chad R. Sandstrom

    IPC: G11B370

    CPC classification number: B29C45/263

    Abstract: A mold and a process for use in producing data storage articles such as single substrate double-sided disks. In one configuration, a mold for manufacturing a substrate includes a stamper, at least one holder having an interface with the stamper, and a vacuum line for applying a retention force to maintain the interface between the holder and the stamper. In another configuration, the mold includes a demolding line for applying a demolding force to the substrate to aid in separating the substrate from the stamper. The various embodiments of the present invention provide, among other things, easier and faster stamper changeover, substrates and final data storage articles having improved process indicia such as thickness, flatness, inner and outer diameter, and concentricity, and facilitates production of single-substrate double-sided disks.

    Rewritable optical data storage disk having enhanced flatness
    7.
    发明授权
    Rewritable optical data storage disk having enhanced flatness 失效
    具有增强的平整度的可重写光学数据存储盘

    公开(公告)号：US06238763B1

    公开(公告)日：2001-05-29

    申请号：US09371632

    申请日：1999-08-11

    Applicant: Chad R. Sandstrom

    Inventor： Chad R. Sandstrom

    IPC: B32B302

    CPC classification number: B82Y10/00 ,  G11B7/24 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/2585 ,  G11B11/10528 ,  G11B11/10584 ,  G11B2007/24304 ,  G11B2007/2571 ,  G11B2007/25713 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

    Abstract: A rewritable optical recording disk has an increased thickness that is greater than or equal to approximately 1.5 mm. In particular, the disk may have a substrate with a thickness that is greater than or equal to approximately 2.3 mm and less than or equal to approximately 2.6 mm. The increased thickness of the substrate enhances the flatness of the recording disk relative to a recording plane. In particular, the increased thickness reduces process-induced surface variations such as warpage and tilt, and provides the disk with increased stiffness to resist deflection during use. The enhanced flatness enables data to be recorded on the disk in a consistent manner with greater spatial densities using techniques such as near-field, air-incident recording. The resulting disk thereby yields greater spatial density and data storage capacity.

    Abstract translation: 可重写光记录盘具有大于或等于约1.5mm的增加的厚度。 特别地，盘可以具有厚度大于或等于约2.3mm且小于或等于约2.6mm的基底。 基板的增加的厚度增加了记录盘相对于记录平面的平坦度。 特别地，增加的厚度减小了工艺引起的表面变化，例如翘曲和倾斜，并且在使用期间为盘提供增加的刚度以抵抗偏转。 使用诸如近场，空中入射记录的技术，增强的平坦度使得能够以更大的空间密度以一致的方式将数据记录在盘上。 所得到的磁盘由此产生更大的空间密度和数据存储容量。

    Rewritable optical data storage disk having enhanced flatness
    8.
    发明授权
    Rewritable optical data storage disk having enhanced flatness 失效
    具有增强的平整度的可重写光学数据存储盘

    公开(公告)号：US06180201B2

    公开(公告)日：2001-01-30

    申请号：US09360749

    申请日：1999-07-25

    Applicant: Chad R. Sandstrom

    Inventor： Chad R. Sandstrom

    IPC: B32B302

    CPC classification number: B82Y10/00 ,  G11B7/24 ,  G11B11/10528 ,  G11B11/10584 ,  Y10S428/90 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21 ,  Y10T428/265

    Abstract: A rewritable optical recording disk has a substrate with an increased thickness that is greater than or equal to approximately 1.5 mm and less than or equal to approximately 2.5 mm. The increased thickness of the substrate enhances the flatness of the recording disk relative to a recording plane. In particular, the increased thickness reduces process-induced surface variations such as warpage and tilt, and provides the disk with increased stiffness to resist deflection during use. The enhanced flatness enables data to be recorded on the disk in a consistent manner with greater spatial densities using techniques such as near-field, air-incident recording. The resulting disk thereby yields greater spatial density and data storage capacity.

    Abstract translation: 可重写光记录盘具有大于或等于约1.5mm且小于或等于约2.5mm的厚度增加的基板。 基板的增加的厚度增加了记录盘相对于记录平面的平坦度。 特别地，增加的厚度减小了工艺引起的表面变化，例如翘曲和倾斜，并且在使用期间为盘提供增加的刚度以抵抗偏转。 使用诸如近场，空中入射记录的技术，增强的平坦度使得能够以更大的空间密度以一致的方式将数据记录在盘上。 所得到的磁盘由此产生更大的空间密度和数据存储容量。

    Rewritable optical data storage disk having enhanced flatness
    9.
    发明授权
    Rewritable optical data storage disk having enhanced flatness 失效
    具有增强的平整度的可重写光学数据存储盘

    公开(公告)号：US5972461A

    公开(公告)日：1999-10-26

    申请号：US3580

    申请日：1998-01-06

    Applicant: Chad R. Sandstrom

    Inventor： Chad R. Sandstrom

    IPC: G11B7/24 ,  G11B11/105 ,  G11B5/66

    CPC classification number: B82Y10/00 ,  G11B11/10584 ,  G11B7/24 ,  G11B11/10528 ,  Y10S428/90 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21 ,  Y10T428/265

    Abstract: A rewritable optical recording disk has a substrate with an increased thickness that is greater than or equal to approximately 1.5 mm and less than or equal to approximately 2.5 mm. The increased thickness of the substrate enhances the flatness of the recording disk relative to a recording plane. In particular, the increased thickness reduces process-induced surface variations such as warpage and tilt, and provides the disk with increased stiffness to resist deflection during use. The enhanced flatness enables data to be recorded on the disk in a consistent manner with greater spatial densities using techniques such as near-field, air-incident recording. The resulting disk thereby yields greater spatial density and data storage capacity.

    Abstract translation: 可重写光记录盘具有大于或等于约1.5mm且小于或等于约2.5mm的厚度增加的基板。 基板的增加的厚度增加了记录盘相对于记录平面的平坦度。 特别地，增加的厚度减小了工艺引起的表面变化，例如翘曲和倾斜，并且在使用期间为盘提供增加的刚度以抵抗偏转。 使用诸如近场，空中入射记录的技术，增强的平坦度使得能够以更大的空间密度以一致的方式将数据记录在盘上。 所得到的磁盘由此产生更大的空间密度和数据存储容量。

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