Signal processing device, magnetic tape drive, magnetic tape, magnetic tape cartridge, program, signal processing method, and magnetic tape manufacturing method

A magnetic tape comprising:

• a base film is made of polyethylene terephthalate, polyethylene naphthalate, or polyamide;
• and
• a plurality of servo bands formed in the magnetic tape,
• wherein the plurality of servo bands are disposed at intervals in a width direction of the magnetic tape,
• a plurality of servo patterns are formed in each of the plurality of servo bands along a longitudinal direction of the magnetic tape, and
• a deviation amount between the servo patterns having corresponding positions in the longitudinal direction of the magnetic tape between a pair of servo bands adjacent to each other in the width direction among the plurality of servo bands corresponds to the deviation amount obtained from a signal processing device, the signal processing device comprising:
• a processor that acquires data read by a magnetic head from the magnetic tape,
• the magnetic head includes a pair of servo reading elements corresponding to a pair of the servo bands adjacent to each other in the width direction among the plurality of servo bands, and
• the processor
• acquires a first signal based on a first result obtained by reading the servo pattern in a first servo band included in the pair of servo bands by a first servo reading element included in the pair of servo reading elements,
• acquires a second signal based on a second result obtained by reading the servo pattern in a second servo band included in the pair of servo bands by a second servo reading element included in the pair of servo reading elements, and
• acquires a deviation amount in time between the first signal and the second signal.