Patent ID: 6067204
Filing Date: 2000-05-23
Classification: G11B

Abstract:
A method for generating a position error signal in a disc drive, said method comprising the steps of:(a) determining a micro-track profile for a read element of said disc drive, said micro-track profile including a spectral magnitude profile in a spatial frequency domain wherein a high magnitude response occurs at a low-end spatial frequency and a low magnitude response occurs at a high-end spatial frequency;(b) characterizing said micro-track profile as a low-pass filter in a spatial domain;(c) facilitating generation of a position error signal that is insensitive to the read element's magnetic and physical geometry's, including said reader micro-track profile by designing a servo burst pattern such that a spectral response is at a lower spatial frequency than said low end spatial frequency;(d) writing said designed servo burst pattern onto the magnetic media of said disc drive; and(e) reading said servo burst pattern and generating said position error signal.