In a head loading/unloading type disk apparatus, accurate velocity feedback control is implemented by correcting any error in a VCM velocity detection value, which is caused by a temperature change or the like. At the start of loading control for loading a head from a ramp onto a disk, a carriage is...http://www.google.de/patents/US6922302?utm_source=gb-gplus-sharePatent US6922302 - Calibration method for use in head loading/unloading type disk apparatus
