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.com/patents/US20040047064?utm_source=gb-gplus-sharePatent US20040047064 - Calibration method for use in head loading/unloading type disk apparatus
