Patent ID: 9111563
Filing Date: 2015-08-18
Classification: G11B

Abstract:
1. A data storage device, comprising: a device body; a read/write head configured to read and write data in a data track of a storage medium carried by the device body in use; an actuator system mounted on the device body configured to effect movement of the read/write head relative to the data track to align the head with the data track, the actuator system having a plurality of degrees of freedom for effecting the movement; a controller configured to control the actuator system to effect the movement; a body vibration sensor, provided on the device body, configured to generate a signal indicative of vibration of the body; and a actuator vibration sensor, provided on the actuator system, configured to generate a signal indicative of vibration of the actuator system; wherein the controller is adapted to process the signals from the body and actuator vibration sensors to derive a coupling signal indicative of vibration coupling between the degrees of freedom, and to control the actuator system dependent on the one coupling signal and the signal from the body vibration sensor.