Device and method for controlling the position of a head relative to a tape within a tape transport system

摘要

Controlling the position of a head within a tape transport system. A track-follow control system (TFCS) includes a controller device for generating a control signal as a function of a position error signal (PES), wherein the PES indicates a difference between the actual and target positions of the head relative to the tape, and an actuator for changing the actual position. The TFCS is adapted to select a controller device configuration from a plurality of configurations dependent on an operating tape speed. The configurations are predetermined depending on a vibration frequency domain profile indicative of environmental vibrations induced to the head and tape to determine the control signal for adjusting an actuator output signal relative to a lateral tape motion signal. The TFCS is also adapted to feed-back a signal depending on a difference of the actuator output signal and the lateral tape motion signal to generate the PES.

主权项

1. A track-follow control system for controlling the position of a head relative to a tape, the track-follow control system comprising:
a controller device configured to generate a control signal as a function of a position error signal, wherein the position error signal indicates a difference between an actual position of the head and a target position of the head relative to the tape; and an actuator configured to change the actual position of the head dependent on the control signal; wherein the track-follow control system is configured to: select a configuration for the controller device from a plurality of configurations dependent on an operating tape speed.