Title :
A novel data servo method
Author :
He, Lianna ; Honda, Naoki ; Ouchi, Kazuhiro ; Iwasaki, Shun-ichi
Author_Institution :
Akita Res. Inst. of Adv. Technol., Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
A novel track following method has been proposed, by which the head´s position error signal (PES) can be directly extracted from data sequences encoded by a modified Group Inter-Track Orthogonal Coding (GITOC). One of the advantages of this new method is that the PES is continuous. A continuous PES extracted from data sequences makes a precise track following on very narrow tracks possible. For this reason, this novel data servo method has potential applications in submicron trackwidth servo. The principle of this new method has been confirmed on a longitudinal magnetic recording system
Keywords :
data recording; magnetic recording; sequential codes; servomechanisms; GITOC; continuous PES; data sequence; data servo; group inter-track orthogonal coding; head position error signal; longitudinal magnetic recording; submicron trackwidth; track following; Data mining; Decoding; Disk recording; Error correction; Error correction codes; Helium; Magnetic heads; Magnetic recording; Magnetization; Servomechanisms;
Journal_Title :
Magnetics, IEEE Transactions on
