Signal processing device, magnetic tape drive, magnetic tape, magnetic tape cartridge, program, signal processing method, and magnetic tape manufacturing method
A magnetic head includes a pair of servo reading elements corresponding to a pair of servo bands adjacent to each other in a width direction. A processor acquires a first signal based on a first result obtained by reading a servo pattern in a first servo band by a first servo reading element included in a 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 by a second servo reading element included in the pair of servo reading elements, and outputs a deviation amount signal corresponding to a deviation amount in time between the first signal and the second signal.
1. 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.
2. The magnetic tape according to claim 1 , wherein a signal corresponding to the deviation amount is stored in a partial region of the magnetic tape.
3. A magnetic tape cartridge comprising: the magnetic tape according to claim 1 accommodated therein.
4. The magnetic tape cartridge according to claim 3 , further comprising:
a noncontact storage medium that is able to perform communication in a noncontact manner,
wherein a signal corresponding to the deviation amount obtained from the signal processing device is stored in the noncontact storage medium.