A servo calibration method is disclosed for a disk drive including a rotating data storage disk journalled to a frame and having a multiplicity of concentric data tracks defined on a major surface thereof and an actuator structure under the control of a programmed servo control microprocessor in response...http://www.google.fr/patents/US5119254?utm_source=gb-gplus-shareBrevet US5119254 - Data transducer position control system for rotating disk data storage equipment
Data transducer position control system for rotating disk data storage equipment
