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    • 1. 发明授权
    • Calibrating servos
    • 校准伺服
    • US08023216B1
    • 2011-09-20
    • US12192984
    • 2008-08-15
    • Man CheungDavid RutherfordJerry RichgelsPerry Neos
    • Man CheungDavid RutherfordJerry RichgelsPerry Neos
    • G11B5/09
    • G11B5/59633G11B5/59661G11B5/59666
    • Methods, systems, and apparatus, including computer program products are described for calibrating servos, and in some implementations, calibrating spiral servos for use in self-servo-write SSW processes. In one aspect, a method is provide that includes rotating a machine readable medium, and detecting a spiral on the machine readable medium. Detecting a spiral on the machine readable medium includes detecting magnitudes of the spiral and a timing mark, storing a timestamp from a clock signal that corresponds to the timing mark of the spiral, determining a peak of the spiral from the magnitudes, and locking the clock signal to the peak of the spiral using the timestamp.
    • 描述了包括计算机程序产品在内的方法,系统和装置,用于校准伺服系统,并且在一些实施方式中,校准用于自伺服写入SSW过程的螺旋伺服。 在一个方面,提供了一种方法,其包括旋转机器可读介质,以及检测机器可读介质上的螺旋。 在机器可读介质上检测螺旋包括检测螺旋的大小和定时标记,从对应于螺旋的定时标记的时钟信号存储时间戳,从该幅度确定螺旋的峰值,并锁定时钟 使用时间戳信号到螺旋峰值。