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    High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media
    1.
    发明授权
    High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media 失效
    具有光学伺服轨道的高轨道密度介质以及用于在介质上刻录轨道的方法和装置

    公开(公告)号：US5120927A

    公开(公告)日：1992-06-09

    申请号：US537081

    申请日：1990-06-12

    申请人： Roger O. Williams ,  Milton C. Kurtz ,  Jimmy D. Godwin ,  Stephen P. Williams ,  Gregory K. Roberts

    发明人： Roger O. Williams ,  Milton C. Kurtz ,  Jimmy D. Godwin ,  Stephen P. Williams ,  Gregory K. Roberts

    IPC分类号： G11B5/58 ,  G11B5/584 ,  G11B5/596 ,  G11B5/82

    CPC分类号： G11B5/82 ,  G11B5/58 ,  G11B5/584 ,  G11B5/59677

    摘要： A magnetic information storage medium, such as a floppy or rigid magnetic disk, and an apparatus and method for inscribing a plurality of indelible grooves in a surface of the medium to function as optical servo tracks. The grooves can be in the form of a plurality of continuous or noncontinuous concentric circles. The grooves can also be a continuous spiral or a plurality of continuous concentric circles having non-constant widths and/or depths. The apparatus comprises a platen and drive motor for rotating the medium, an argon ion laser light source for generating a beam of light, optical components for directing the beam of light to a beam focusing carriage and a microcomputer for controlling the apparatus. The method involves rotating the medium under the focused light beam to inscribe the grooves on the surface of the medium. Optical track densities greater than 1000 tracks per inch can be obtained with the method.

    摘要翻译： 诸如软盘或刚性磁盘的磁信息存储介质以及用于在介质的表面中刻录多个不可磨损的凹槽以用作光伺服轨道的装置和方法。 凹槽可以是多个连续的或非连续的同心圆的形式。 凹槽也可以是具有不均匀宽度和/或深度的连续螺旋或多个连续的同心圆。 该装置包括用于旋转介质的压板和驱动马达，用于产生光束的氩离子激光光源，用于将光束引导到光束聚焦托架的光学部件和用于控制该装置的微型计算机。 该方法包括在聚焦光束下旋转介质以将凹槽刻在介质的表面上。 使用该方法可以获得每英寸大于1000个轨道的光学轨道密度。