DISK DEVICE AND DISTURBANCE COMPENSATION METHOD

DISK DEVICE AND DISTURBANCE COMPENSATION METHOD

PROBLEM TO BE SOLVED: To provide a disk device and a disturbance compensation method, by which a head is accurately positioned with a simple configuration in the disk device in which the head is positioned by a rotary type actuator. SOLUTION: The time interval of servo information previously recorde...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AIKAWA KOICHI, SASAMOTO TATSURO, SHINSENJI AKIHIDE
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a disk device and a disturbance compensation method, by which a head is accurately positioned with a simple configuration in the disk device in which the head is positioned by a rotary type actuator. SOLUTION: The time interval of servo information previously recorded in a disk 111 is detected, a disturbance amount is detected from the fluctuation of the detected time interval and the disturbance of the position of the head 113 is compensated on the basis of the detected disturbance amount.