Patent ID: 11900976
Assignee: FUJIFILM CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The detection device according to claim 14,
wherein the servo pattern is at least one second linear magnetization region pair,
the second linear magnetization region pair includes a third linear magnetization region which is linearly magnetized, and a fourth linear magnetization region which is linearly magnetized,
the third linear magnetization region and the fourth linear magnetization region are inclined in opposite directions with respect to the first imaginary straight line along the width direction of the magnetic tape,
the servo pattern signal includes a first signal which is a result of reading the third linear magnetization region by the servo reading element, and a second signal which is a result of reading the fourth linear magnetization region by the servo reading element,
the processing device includes a first detection circuit and a second detection circuit which are connected in parallel,
the first detection circuit
acquires the servo band signal, and
detects the first signal by comparing the servo band signal with the first ideal waveform signal, and

the second detection circuit
acquires the servo band signal, and
detects the second signal by comparing the servo band signal with the second ideal waveform signal.