Calibration of magnetic tape drive
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United States of America Patent
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-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Jun 2, 1997
filing date -
Jun 2, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of calibrating a helical scan magnetic tape drive, a dual scan calibration tape having a calibration stripe is loaded into the tape drive. As a head traverses differing paths along the calibration stripe, a series of calibration signal waveforms is obtained. For each calibration signal waveform in the series, a voltage measurement is made at a predetermined position within each waveform. A maximum one of the voltage measurements is used to generate a measured overlap scale factor (MOV) indicative of an overlap of the read head relative to the calibration stripe. As a subsequent calibration stripe on the calibration tape is read in a dual scan calibration mode, the measured overlap scale factor is utilized to generate a track position error vector. The track position error vector is used to adjust a tape path guide of the tape drive.
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