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1. 发明公开

EP0630000A3 Method and apparatus for processing servo signals concurrently read from plural spaced-apart servo areas on a magnetic tape 失效
标题翻译：用于处理伺服信号的方法和装置同时读出的磁带的多个伺服区进行。
公开(公告)号：EP0630000A3
公开(公告)日：1995-02-22
申请号：EP94108206.7
申请日：1994-05-28
申请人： International Business Machines Corporation
发明人： Baca, Robert Carl , Cheung, Man Fung , Chliwnyj, Alex , Comeaux, Wayne Thomas , Crossland, James Francis
IPC分类号： G11B5/584 , G11B5/55
CPC分类号： G11B5/584 , G11B5/5508 , G11B15/026 , G11B15/04
摘要： In a magnetic tape drive, a magnetic head (27) simultaneously senses plural track lateral position indicators to generate a like plurality of independently generated sensed position error signals. The sensed position error signals are combined to provide an output position error signal (100) that drives a positioning system to position the magnetic head laterally of the length of the magnetic tape (21). The output position error signal represents an average of the position errors indicated by the sensed position error signals. Means monitor the quality of such error signal enables eliminating poor quality signals from the output position error signal for maintaining a quality servo control. Upon loading the magnetic tape (21) to a load point, the plural track position indicators are simultaneously sensed for centering the head to a predetermined track position. Then, an independent head position sensor (90) is calibrated to the load point track position indicators for use as a verification of validity of the output position error signal.

2. 发明公开

EP0630000A2 Method and apparatus for processing servo signals concurrently read from plural spaced-apart servo areas on a magnetic tape 失效
标题翻译：用于处理伺服信号的方法和装置同时读出的磁带的多个伺服区进行。
公开(公告)号：EP0630000A2
公开(公告)日：1994-12-21
申请号：EP94108206.7
申请日：1994-05-28
申请人： International Business Machines Corporation
发明人： Baca, Robert Carl , Cheung, Man Fung , Chliwnyj, Alex , Comeaux, Wayne Thomas , Crossland, James Francis
IPC分类号： G11B5/584 , G11B5/55
CPC分类号： G11B5/584 , G11B5/5508 , G11B15/026 , G11B15/04
摘要： In a magnetic tape drive, a magnetic head (27) simultaneously senses plural track lateral position indicators to generate a like plurality of independently generated sensed position error signals. The sensed position error signals are combined to provide an output position error signal (100) that drives a positioning system to position the magnetic head laterally of the length of the magnetic tape (21). The output position error signal represents an average of the position errors indicated by the sensed position error signals. Means monitor the quality of such error signal enables eliminating poor quality signals from the output position error signal for maintaining a quality servo control. Upon loading the magnetic tape (21) to a load point, the plural track position indicators are simultaneously sensed for centering the head to a predetermined track position. Then, an independent head position sensor (90) is calibrated to the load point track position indicators for use as a verification of validity of the output position error signal.
摘要翻译：在磁带驱动器中，磁头（27）同时检测多个轨道的横向位置指标，以产生unabhängig的同样的多个感测到的产生的位置误差信号。感测到的位置误差信号被组合，以提供到输出位置误差信号（100）的驱动器那样的定位系统来定位磁带（21）的长度的磁头尾盘反弹。平均由感测到的位置误差信号表示的位置误差的输出位置误差信号darstellt。装置监视搜索错误信号的质量启用用于保持质量servoControlMode消除从输出位置误差信号质量差的信号。在加载磁带（21）到负载点，多个轨道的位置指示器被同时感测到用于头部定心到预定轨道位置。然后，在独立的头部位置传感器（90）被校准到负载点的轨道位置指示器用作输出位置误差信号的有效性的验证。

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