A novel track jump controller with hybrid track position detector for the optical disk drives

Abstract

This paper presents a novel hybrid track position detector for the track jump control in optical disk drives. The proposed controller draws the feedback information from the HTP position information instead of the conventional track crossing velocity. The controller design is then based on the position information. The design leads to more accurate feedback information, and thus more accurate velocity profile. The experimental results show that the proposed controller achieves better seeks time performance. The short jump experiments also show that the proposed system can more effectively cancel the disk eccentricity effect.