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    • 41. 发明授权
    • Arced format generation method and system
    • 格式生成方法和系统
    • US06654324B1
    • 2003-11-25
    • US09523638
    • 2000-03-13
    • Gary D. HuberGregory D. Hanson
    • Gary D. HuberGregory D. Hanson
    • G11B700
    • G11B7/261G11B7/00745
    • A process of writing sector header data in the form of a stream of digital bits producing features located at varying radial positions on a master recording disk. Synchronized with rotation of the disk, a variable delay having a duration which varies with the radial positions of the bits on the disk is introduced into a clock signal. In the preferred embodiment, using the clock signal, a highly accurate, variable time delay is generated between the rotation of a master recording spindle and the recording of sector header data on a master disk mounted on the spindle. Thus, optical disks manufactured from the master disk have arc-shaped sector header spokes exhibiting maximum spatial accuracy and resultant maximal timing accuracy.
    • 以数字比特流的形式写入扇区头部数据的过程,产生位于主记录盘上的变化的径向位置处的特征。 与盘的旋转同步,具有随盘上的位的径向位置而变化的持续时间的可变延迟被引入时钟信号。 在优选实施例中,使用时钟信号,在主记录主轴的旋转和在安装在主轴上的母盘上记录扇区头部数据之间产生高度精确的可变时间延迟。 因此,从主盘制造的光盘具有呈现最大空间精度和合成的最大定时精度的弧形扇形头部辐条。