Detection of open write heads and/or cables in tape drives
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United States of America Patent
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Feb 21, 2017
Grant Date -
Feb 2, 2017
app pub date -
Apr 26, 2016
filing date -
Jul 30, 2015
priority date (Note) -
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Abstract
A computer-implemented method, according to one embodiment, includes: receiving a first output signal from a write driver, the write driver having an operating voltage applied thereto, receiving a second output signal from a comparator circuit, the comparator circuit having a reference voltage applied thereto, comparing a voltage of the first output signal with a voltage of the second output signal, and detecting a high resistance condition in response to determining that the voltage of the first output signal is less than the voltage of the second output signal. According to the present embodiment, the high resistance condition indicates open and/or partially open circuitry in the write driver. Moreover, the operating voltage is equal to the reference voltage. Other systems, methods, and computer program products are described in additional embodiments.
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