Patent ID: 8068308
Filing Date: 2011-11-29
Classification: G11B

Abstract:
1. A servo signal recording apparatus capable of recording a servo signal on a servo track of a magnetic tape, comprising: a servo signal reproduction unit that reproduces a servo signal recorded on the magnetic tape; a frequency conversion unit that generates frequency component information by applying a Fourier transform to a PES (position error signal) represented by Expression (3) shown below obtained from the servo signal reproduced by the servo signal reproduction unit; a filter value generation unit that generates a filter value based on the frequency component information generated by the frequency conversion unit; and a recording control unit that writes the filter value generated by the filter value generation unit to a recording medium; wherein the filter value generation unit generates a filter value that enables removal of a periodic noise component included in the frequency component information; in expression (3), “Y” is the tilt angle of the strips formed on a servo track of the magnetic tape, “AB” is the distance between a first strip A wherein the first strip A wherein “A