Patent ID: 6327105
Filing Date: 2001-12-04
Classification: G11B

Abstract:
A method for determining a position of a magnetic storage medium divided into a plurality of servo sections, the method comprising the steps of:defining a predetermined bit pattern that corresponds to a known position of the magnetic storage medium;associating a single positional index bit with each said servo section such that a known bit of the predetermined bit pattern is associated with the known position of the magnetic storage medium;reading a current positional index bit from a first servo section on the magnetic storage medium;reading a second positional index bit from a second servo section on the magnetic storage medium, the second servo section being adjacent to the first servo section;forming a positional bit sequence comprising the current positional index bit and the second positional index bit;comparing the positional bit sequence with the predetermined bit pattern; andbased on the comparison, determining whether the position of the magnetic medium is the known position,wherein the positional bit sequence and the predetermined bit pattern each has a length of N bits, where N is defined based on a number of allowable bit errors.