Disk drive storage system having means for compensating for seek driving forces coupled between head actuators
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United States of America Patent
Stats
-
Oct 7, 1986
Grant Date -
N/A
app pub date -
Jun 15, 1984
filing date -
Jun 15, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Seek drive forces coupled between head actuators in a magnetic disk storage system employing separately controllable head actuators are prevented from affecting reliable head actuator operation. For this purpose a compensating signal is derived proportional to the driving current employed in performing an actuator seek operation. This compensating signal is fed forward into the drive circuit of the other actuator so as to cause this other actuator to begin moving its heads in a direction opposite to that which would be caused by the later arriving coupled drive forces, thereby making it possible to prevent driving forces coupled between actuators from deleteriously interferring with reliable actuator operation.
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