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31. 发明授权

US5923492A Variable-phase servo burst pattern used to minimize shield-related side readings 失效
标题翻译：用于最小化屏蔽相关侧读数的可变相伺服突发图案
公开(公告)号：US5923492A
公开(公告)日：1999-07-13
申请号：US940588
申请日：1997-09-30
申请人： Bruce Liikanen
发明人： Bruce Liikanen
IPC分类号： G11B5/55 , G11B5/596 , G11B23/00
CPC分类号： G11B5/59683 , G11B5/596 , G11B5/59655 , G11B5/59688 , G11B23/0007 , G11B5/5526
摘要： A disk which incorporates a variable-phase servo burst pattern is disclosed. The disk has servo information thereon. The servo information includes a first servo burst pattern written on a first track and a second servo burst pattern written on a second track. Both the first servo burst pattern and the second servo burst pattern have a plurality of transition pulses. The corresponding transition pulses of the first servo burst pattern and the second servo burst pattern are 180 degrees out of phase from one another. Furthermore, a method of writing servo-information which is used to position a magneto-resistive head on a centerline of a track is also disclosed. The method includes the steps of (1) writing a first servo burst pattern on a first track, the first servo burst pattern having a plurality of transition pulses; and (2) writing a second servo burst pattern on a second track, the second servo burst pattern having a plurality of transition pulses, wherein the corresponding transition pulses of the first servo burst pattern and the second servo burst pattern are 180 degrees out of phase from one another.
摘要翻译：公开了一种包含可变相伺服突发图案的盘。盘上有伺服信息。伺服信息包括写在第一轨道上的第一伺服脉冲串模式和写在第二磁道上的第二伺服脉冲串模式。第一伺服脉冲串模式和第二伺服脉冲串模式都具有多个转换脉冲。第一伺服突发图案和第二伺服突发图案的相应转换脉冲彼此相位相差180度。此外，还公开了一种用于将磁阻头定位在轨道的中心线上的伺服信息的写入方法。该方法包括以下步骤：（1）在第一磁道上写入第一伺服脉冲串模式，第一伺服脉冲串模式具有多个转换脉冲; 以及（2）在第二磁道上写入第二伺服脉冲串模式，所述第二伺服脉冲串模式具有多个转换脉冲，其中所述第一伺服脉冲串模式和所述第二伺服脉冲串模式的相应转换脉冲是相位相差180度从彼此。

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