Constant density recording method and system for headless format in hard disc driver
    1.
    发明公开
    Constant density recording method and system for headless format in hard disc driver 失效
    在硬盘设备的记录方法具有恒定密度和系统的格式,而不预谋

    公开(公告)号:EP0809247A2

    公开(公告)日:1997-11-26

    申请号:EP97302647.9

    申请日:1997-04-17

    IPC分类号: G11B20/12

    摘要: A method of and a system for efficiently using a split information stored in an unnecessary data sector, thereby reducing unnecessary data. The system includes first registers (301) respectively adapted to store MCDR values in response to a write control signal generated from a central processing unit, second registers (303) respectively coupled to the first registers (301), each second register (303) down-loading the MCDR value from the corresponding first register (301) in response to a servo sector interrupt application signal inverted by an inverter (N1), thereby generating signals indicative of an internal flag, an internal CDR value and a split sector number, a multiplexer (305) adapted to multiplex the internal flag signals from the second registers (303), thereby generating a flag signal, a counter (311) adapted to count the servo sector interrupt application signal, thereby generating a current sector number signal indicative of the number of a sector being currently accessed, a synthesizer (307) adapted to generate a CDR signal based on the split sector number signal from each second register (303), and a comparator (309) for comparing the split sector number signal from each second register (303) with the current sector number signal from the counter (311), thereby generating a sector good signal.

    摘要翻译: 的方法和用于有效地利用在不必要的数据扇区存储在划分信息,从而减少不必要的数据的系统。 该系统包括:第一寄存器(301)分别angepasst存储响应于从中央处理单元产生的写入控制信号MCDR值,分别耦合到所述第一寄存器(301),每个第二寄存器(303)的第二寄存器(303)向下 响应于通过在反相器反相的伺服扇区中断应用信号 - 上下从相应的第一寄存器(301)的MCDR值(N1),从而产生指示一个内部标志,以内部CDR值和分离扇区号,一个信号 复用器(305)angepasst从第二寄存器复用内部标志信号(303),从而产生一个标志信号,一个计数器(311)angepasst计数伺服扇区中断应用信号,从而产生指示所述当前扇区号码信号 扇区的数目与当前访问,一个合成器(307)angepasst成基于从每个第二寄存器(303)分割扇区号信号的CDR信号,和一个对比试验 TOR(309),用于分离扇区号的信号从每个第二寄存器(303)与来自计数器(311)的当前扇区号码信号比较,从而产生一个扇区良好的信号。

    Constant density recording method and system for headless format in hard disc driver
    3.
    发明公开
    Constant density recording method and system for headless format in hard disc driver 失效
    在硬盘设备的记录方法具有恒定密度和系统的格式,而不预谋

    公开(公告)号:EP0809247A3

    公开(公告)日:1998-03-11

    申请号:EP97302647.9

    申请日:1997-04-17

    IPC分类号: G11B20/12

    摘要: A method of and a system for efficiently using a split information stored in an unnecessary data sector, thereby reducing unnecessary data. The system includes first registers (301) respectively adapted to store MCDR values in response to a write control signal generated from a central processing unit, second registers (303) respectively coupled to the first registers (301), each second register (303) down-loading the MCDR value from the corresponding first register (301) in response to a servo sector interrupt application signal inverted by an inverter (N1), thereby generating signals indicative of an internal flag, an internal CDR value and a split sector number, a multiplexer (305) adapted to multiplex the internal flag signals from the second registers (303), thereby generating a flag signal, a counter (311) adapted to count the servo sector interrupt application signal, thereby generating a current sector number signal indicative of the number of a sector being currently accessed, a synthesizer (307) adapted to generate a CDR signal based on the split sector number signal from each second register (303), and a comparator (309) for comparing the split sector number signal from each second register (303) with the current sector number signal from the counter (311), thereby generating a sector good signal.