Patent ID: 7457075
Filing Date: 2008-11-25
Classification: G11B

Abstract:
1. A method comprising determining a head positioning profile for a first track in relation to a track profile for the first track, a track profile for a second track, a track profile for a third track and a non-zero weighting value, the method further comprising a prior step of comparing the track profile for the first track to a predetermined threshold, and performing the determining step in relation to said comparison, wherein a track profile is represented by WI, the first track is represented by n, the second track is represented by n−1, and the third track is represented by n+1, the head positioning profile is represented by ZAP(n), and wherein ZAP(n) =−WI(n)−alpha* [WI(n−1)+WI(n+1)], where alpha is a number between 0 and 1.