Device and method for controlling the position of a head relative to a tape within a tape transport system
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United States of America Patent
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Jul 21, 2015
Grant Date -
Jan 8, 2015
app pub date -
Jun 26, 2014
filing date -
Jul 4, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
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.
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