公开(公告)号：EP1160788A3

公开(公告)日：2002-10-30

申请号：EP00311394.1

申请日：2000-12-19

申请人： FUJITSU LIMITED

发明人： Hirano, Masakazu, c/o Fujitsu Limited ,  Suzuki, Nobuyuki, c/o Fujitsu Limited

IPC分类号： G11B21/12 ,  G11B5/596 ,  G11B5/54 ,  G11B21/10 ,  G11B19/20

CPC分类号： G11B21/12

摘要： A disk apparatus having a ramp loading mechanism. A disk medium (40-1) on which second servo patterns have been written in a landing area (84) on the medium at a finer interval than that of first servo patterns written in a data area (86) is used. When a head is moved from a ramp (82) to the landing area (84) on the medium, a lead-in processing unit performs a servo lead-in on the basis of the second servo patterns (90) written in the landing area at a fine interval.

公开(公告)号：EP1271476A3

公开(公告)日：2004-03-24

申请号：EP01308470.2

申请日：2001-10-03

申请人： FUJITSU LIMITED

发明人： Hirano, Masakazu, c/o Fujitsu Limited ,  Suzuki, Nobuyuki, c/o Fujitsu Limited

IPC分类号： G11B5/596

CPC分类号： G11B5/59655

摘要： A magnetic disk unit writes, on a magnetic disk, a burst position error data which is used for correcting a positional error of a burst pattern which is used for correcting an error within one track, next to the burst pattern. A write head is controlled a position so as to satisfy a relationship M = N when (N-1)K

公开(公告)号：EP1253582A3

公开(公告)日：2003-07-30

申请号：EP01308223.5

申请日：2001-09-27

申请人： FUJITSU LIMITED

发明人： Hirano, Masakazu, c/o Fujitsu Limited ,  Suzuki, Nobuyuki, c/o Fujitsu Limited

IPC分类号： G11B5/48 ,  G11B21/12 ,  G11B5/54 ,  G11B19/04

CPC分类号： G11B21/12 ,  G11B5/54

摘要： A storage apparatus is provided with a load/unload mechanism which carries out a ramp load/unload operation to load/unload a head which is provided on an arm with respect to a recording medium by a driving part which drives the arm, and a controller controlling a driving current which is supplied to the driving part so as to undergo a gradual change during at least one of a load operation and an unload operation.