Patent ID: 6118615
Filing Date: 2000-09-12
Classification: G11B

Abstract:
An apparatus for positioning a head of a magnetic storage device comprising:a head for recording data on a medium for storage and reading data recorded on said medium for storage;head position signal synthesis means for generating two triangular waves having a 90.degree. phase difference from each other by reading and demodulating a burst pattern recorded on the medium and synthesizing a head position signal using an absolute value of an amplitude of one of said two triangular waves;head position control means for generating a head position control signal based on the head position signal synthesized by said head position signal synthesis means and a target head position;gain difference compensation means for generating a compensation head position signal by multiplying the head position signal generated in said head position control means by a coefficient which assumes a first value when a product of the two triangular wave amplitudes is positive and a second value when said product is negative; andhead positioning means for positioning said head at the target position on the medium for storage based on the compensation control signal generated in said gain difference compensation means.