Hard disk drive and head positioning method
AssigneeKabushiki Kaisha Toshiba
InventorTakao Furuhashi
Life of this patent
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Abstract
According to one embodiment, a hard disk drive includes a disk including a plurality of data areas, and a plurality of servo areas between the plurality of data areas, an arm holding a write head and a read arm, and a positioning module which positions the read head or the write head by rotating the arm, wherein the positioning module positioning the write head by positioning the read head, and adjusting a position of the read head or the write head, based on an output of the read head located in a data area between two servo areas adjacent in a peripheral direction, of the plurality of servo areas.
Claims16
A hard disk drive, comprising:
- a disk comprising a plurality of data areas, and a plurality of servo areas between the plurality of data areas;
- an arm holding a write head and a plurality of read heads;
- and
- a positioning module which positions the plurality of read heads or the write head by rotating the arm,
- wherein the positioning module positions the write head at a first track by positioning the plurality of read heads, positions any one of the plurality of read heads at a second track, and adjusts a position of the plurality of read heads or the write head, based on an output of any one of the plurality of read heads located at the second track and located in a data area between two servo areas adjacent in a peripheral direction, of the plurality of servo areas.
A head positioning method of a hard disk drive, the hard disk drive, comprising:
- a disk comprising a plurality of data areas, and a plurality of servo areas between the plurality of data areas;
- an arm holding a write head and a plurality of read heads;
- and
- a positioning module which positions the plurality of read heads or the write head by rotating the arm, the method comprising:
- positioning the write head at a first track by positioning the plurality of read heads;
- positioning any one of the plurality of read heads at a second track;
- and
- adjusting a position of the plurality of read heads or the write head, based on an output of any one of the plurality of read heads located at the second track and located in a data area between two servo areas adjacent in a peripheral direction, of the plurality of servo areas.
Dependencies are inferred from the claim text.