Fine positioning apparatus for floppy disk drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 16, 1986
Issued Date -
N/A
app pub date -
Jun 20, 1984
filing date -
Feb 16, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A positioning system for a magnetic disk storage system. A first and second lead screw connected to their respective stepper motors are mechanically connected by a lever arm that adds these motions. The first stepper motor is controlled by an open loop control circuit and the second stepper motor is controlled by a closed loop circuit that reads servo information off the magnetic disk. The head is constantly repositioned to follow track eccentricities and can accurately read very closely spaced tracks on non-rigid disks.
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