公开(公告)号：WO1998022940A1

公开(公告)日：1998-05-28

申请号：PCT/US1997007388

申请日：1997-05-02

Applicant: SWAN INSTRUMENTS

Inventor： SWAN INSTRUMENTS ,  KO, Lawrence, K., C. ,  ZHU, Fei, Hong

IPC: G11B05/596

CPC classification number: G11B21/10 ,  G11B5/5526 ,  G11B5/5534 ,  G11B5/59627 ,  G11B5/825 ,  G11B21/085

Abstract: An ultra-high capacity removable media diskette data storage system includes a floppy-type disk drive (10) having a flexible media disk (40) rotatable at a controlled angular velocity which includes a pre-recorded pattern of a plurality of repeating servo bursts (A, B, C, D), each burst having a predetermined integral fraction radial offset relative to the other bursts. A read/write head (34) is positionable relative to data tracks (42) in response to information derived from the servo bursts (A, B, C, D). The data storage system further includes a plurality of calibration tracks (-1, 0, +1), each track including a first series of head-positioning servo sectors interspersed with a second series of calibration servo sectors. The calibration servo sectors include full amplitude servo bursts (A and B) which are read and processed by an electronic circuit (72) which defines a magnitude and polarity signal representing the electronic offset introduced by the circuitry.

Abstract translation: 超高容量可移动介质盘数据存储系统包括软盘式磁盘驱动器（10），其具有以受控角速度旋转的柔性介质盘（40），所述柔性介质盘包括多个重复伺服脉冲串的预先记录的模式（ A，B，C，D），每个突发具有相对于其他突发的预定的积分分数径向偏移。 响应于从伺服脉冲串（A，B，C，D）导出的信息，读/写头（34）可相对于数据轨道（42）定位。 数据存储系统还包括多个校准轨道（-1,0，+1），每个轨道包括散布有第二系列校准伺服扇区的头部定位伺服扇区的第一系列。 校准伺服扇区包括由幅度和极性信号表示由电路引入的电子偏移的电子电路（72）读取和处理的全幅度伺服脉冲串（A和B）。