Disk drive having fine and coarse control of the read/write head
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United States of America Patent
Stats
-
Apr 23, 1985
Grant Date -
N/A
app pub date -
Aug 4, 1982
filing date -
Aug 4, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A disk drive having a head actuator that is capable of quick, fine adjustments in position of the transducing head in order to precisely follow data tracks. A magnetic read/write head (2) is mounted on a first arm (4) so that it can move generally along a radius of a disk (8). A rotary motor (12) is used to spin the disk. A primary motor (36) in conjunction with a cable (42) and drum (40) is used to move the arm-mounted head in coarse movements across the disk. A secondary motor (32) in conjunction with a second arm (34) is used to move the arm-mounted head in fine movements across the disk. The primary motor may be used for track jumping, while the secondary motor may be used for track following.
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