Hard disk drive and head positioning method
AssigneeKabushiki Kaisha Toshiba
InventorTakao Furuhashi
Life of this patent
Estimating the term…
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.
Claims18
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 read arm;
- and
- a positioning module which positions the read head or the write head by rotating the arm,
- wherein the positioning module positions the write head by positioning the read head, and adjusts 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.
hard disk drive of claim 1, wherein
- the disk comprises a plurality of concentric tracks, and
- a track interval between the plurality of tracks, in a track area including the data area used for adjustment of the positioning module, is shorter than a track interval in the other track area.
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 read arm;
- and
- a positioning module which positions the read head or the write head by rotating the arm, the method comprising:
- 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.
Dependencies are inferred from the claim text.