Patent ID: 8059361

Claim:
A tape drive system, comprising: a reel adapted to engage a tape cartridge, the tape cartridge comprising a tape media having a servo code written along a length of the tape media; a tape head comprising at least one servo element to detect the servo code; a drive assembly to induce relative motion between the tape media and the tape head; a servo system to control the relative motion between the tape media and the tape head, the servo system comprising: a sampling module to sample servo data from the tape media; and a position signal processor to calculate a position signal using the servo data from the sampling module, wherein the position signal processor is to calculate the position signal by: determining a first P data set based on differences between peaks in positive readback waveforms generated from a first set of servo stripe pairs in the servo code; determining a second P data set based on differences between peaks in positive readback waveforms generated from a second set of servo stripe pairs, adjacent the first set of servo stripe pairs in the servo code; adjusting data points in the second P data set using a correction value to form an adjusted second P data set; and determining an accumulated P value from the first P data set and the adjusted second P data set.