Object positioning using discrete sliding mode control with vari
Observer based dual stage servo controller with gain boost...
Off track write protection using filtered position error signal
Off-track correcting method of disk apparatus and a disk apparat
Off-track detection with charge redistribution A/D circuits
Off-track error recovery method and apparatus for disk drive
Off-track tester for testing MR head and method of testing the s
Offset nulling system for computer disk drives
On the fly write head flyheight detector
On-line bias estimator in hard disk drives
Online identification of secondary actuator transfer...
Open loop Ka calibration with low frequency compensation
Open loop servo-system for accurate tracking in a video signal r
Optical apparatus for tracking a magnetic tape
Optical apparatus for tracking a magnetic tape
Optical control system for transducer positioning apparatus
Optical information recording/reproducing apparatus and...
Optical rotational position information detecting apparatus
Optical sensor for servo position control
Optical sensor to recording head alignment