Flying head with adjustable actuator load
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 23, 2001
Grant Date -
N/A
app pub date -
Feb 21, 1997
filing date -
Apr 15, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flying head mechanism includes a flying head, a suspension and an actuator which applies a load force through the suspension. The load force applied by the actuator is adjustable while the head is in operation. The actuator may actively control load force as part of a feedback loop which maintains the flying head at a constant flying height. One embodiment disclosed includes a voice coil actuator. In embodiments using an optical flying head, a conventional focus sensor may provide a signal indicative of flying height, since the focus signal inherently indicates flying height error.
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