Tension feedback for tape tension
AssigneeHewlett Packard Enterprise Development LP
InventorsDonald J. Fasen, Vernon L. Knowles
Life of this patent
Estimating the term…
Abstract
A tension feedback signal is generated to reduce tension variation on a tape occurring at a reel frequency. Tension variation information may be obtained and used to generate the tension feedback signal. The tension feedback signal may be combined with a constant tension preset signal. The combined signal may be used to drive a tape reel at a tape reel speed adjusted according to the combined signal.
Claims17
A tape drive, comprising:
- a tension sensor to obtain tension variation information;
- a tension feedback module to generate a tension feedback signal to reduce tension variation occurring at a reel frequency, wherein the tension feedback module is to generate a sine component and a cosine component, and combine the sine component and cosine component to generate the tension feedback signal;
- a combiner to combine a constant tension preset signal and the tension feedback signal to generate a combined signal;
- and
- a driver to drive a tape reel at a reel speed adjusted according to the combined signal.
A method, comprising:
- obtaining a tape expansion signal;
- extracting a component of the tape expansion signal at a reel frequency;
- generating a gain signal using the extracted component;
- generating a time-varying signal having a frequency equal to the reel frequency;
- generating a tension feedback signal by adjusting an amplitude of the time-varying signal using the gain signal;
- generating a combined tension signal by combining the tension feedback signal with a constant tension preset signal;
- and
- controlling tension applied to a tape using the combined tension signal.
A non-transitory computer readable medium having computer executable instructions stored thereon, the instructions being executable by a processor to:
- obtain tension variation information;
- generate a tension feedback signal to reduce tension variation occurring at a reel frequency, wherein, to generate the tension feedback signal, the instructions are executable by the processor to generate a sine component and a cosine component, and combine the sine component and cosine component;
- combine the tension feedback signal with a constant tension preset signal;
- and
- provide the combined signal to a tape reel driver.
Dependencies are inferred from the claim text.