Patent ID: 8395860

Claim:
A data storage device, comprising a non-transitory computer readable medium comprising computer readable program code disposed therein to position a head module comprising at least one servo element and a plurality of data elements, wherein at least one servo element and each of the plurality of data elements can detect a servo band comprising a plurality of servo frames encoded in a sequential information storage medium, wherein each of said plurality of servo frames comprises a plurality of servo bursts, each servo burst comprising a given number of stripes in a defined configuration, wherein each stripe, whenever being read by a servo element or a data element, generates a servo signal that comprises a first signal peak comprising a first sign and a second signal peak comprising a second sign, wherein the first sign and the second sign differ, the computer readable program code comprising a series of computer readable program steps to effect: identifying only signal peaks having a selected sign, wherein said selected sign is either a positive sign or a negative sign; and detecting a servo pattern and generating a servo signal upon identification of a sequence of [4, 4, 5, 5] signal peaks having said selected sign.