A method and apparatus for real-time filtering of a position error signal in a servo system of a disk drive. Pre-calculated periodic components of the position error signal (PES) are used as future values in a real-time filter, preferably a real-time recursive median filter. This minimizes the amount...http://www.google.es/patents/US5875066?utm_source=gb-gplus-sharePatente US5875066 - Method and apparatus for real-time filtering of a position error signal for a disk drive servo system
Method and apparatus for real-time filtering of a position error signal for ...
