Patent ID: 9263073
Filing Date: 2016-02-16
CPC Classification: G11B

Claim Text:
1. A method of reading from a magnetic tape storage medium, the tape storage medium having at least one servo band with at least two sub-bands along a longitudinal extension of the tape storage medium, and servo bursts written to the at least two sub-bands for supporting to determine positional information of the tape storage medium, wherein, in a first of the at least two sub-bands, a first burst comprises at least one servo stripe inclined at a first non-zero angle with respect to a direction orthogonal to the longitudinal extension of the tape storage medium, followed by a second burst comprising at least one servo stripe inclined at a second non-zero angle with respect to the direction orthogonal to the longitudinal extension of the tape storage medium, which second angle is different from the first angle, and wherein, in a second of the at least two sub-bands, a first burst comprises at least one servo stripe followed by a second burst comprising at least one servo stripe, which stripes of the first and the second burst are parallel to each other, the method comprising: reading the first and the second burst of the first sub-band by a first servo reader; determining a first time interval between appearances of two corresponding stripes of the first and second burst in the read-back signal of the first servo reader; reading the first and the second servo burst of the second sub-band by a second servo reader; determining a second time interval between appearances of two corresponding stripes of the first and second burst in the read-back signal of the second servo reader, and determining a lateral position of a head module containing the first and the second servo reader with respect to the tape storage medium dependent on the first and the second time interval.