High throughput missing pattern detector for servo printed recording medial
    21.
    发明申请
    High throughput missing pattern detector for servo printed recording medial 失效
    高通量缺失型号检测器,用于伺服打印记录

    公开(公告)号:US20050083047A1

    公开(公告)日:2005-04-21

    申请号:US10685680

    申请日:2003-10-15

    摘要: The present invention provides a method for detecting missing servo patterns on printed recording media. In general, the method first comprises the step of generating a map of anticipated servo burst patterns for a magnetic medium. The magnetic medium is typically a magnetic storage disc. Next, the magnetic medium is placed onto a disc reading assembly. Using the disc reading assembly, individual servo bursts on the magnetic medium are identified. In one embodiment, signals from the magnetic medium are processed through a frequency down conversion process, coupled with band pass filtering and rms-to-DC conversion. This enables higher throughput of signal processing. A map of identified servo bursts on the magnetic medium can then be generated. The map of identified servo bursts is then compared with the map of anticipated servo burst patterns. In this way, missing servo bursts can be detected.

    摘要翻译: 本发明提供一种用于检测印刷的记录介质上缺少的伺服图案的方法。 通常,该方法首先包括产生磁介质的预期伺服脉冲串图形的映射的步骤。 磁介质通常是磁存储盘。 接下来,将磁性介质放置在盘读取组件上。 使用盘读取组件,识别磁介质上的各个伺服脉冲串。 在一个实施例中,来自磁介质的信号通过降频转换处理,与带通滤波和均方根到直流转换相结合。 这样可以实现更高的信号处理吞吐量。 然后可以产生在磁介质上识别的伺服脉冲串的映射。 然后将所识别的伺服脉冲串的映射与预期的伺服脉冲串模式的映射进行比较。 以这种方式,可以检测到丢失的伺服脉冲串。