Detection of instantaneous speed variations in a tape drive

Details Detection of instantaneous speed variations in a tape drive Detection of instantaneous speed variations in a tape drive

G - Physics

11

B

352/16

G11B 15/46 (2006.01) G11B 20/10 (2006.01)

Patent

CA 1235481

ABSTRACT OF THE DISCLOSURE With high density reel-to-reel tape drives, slight perturb- tions in the tape path can cause instantaneous speed varia- tions in the tape which can alter the recording density of data on the tape over a very short interval. This condition can be detected by measuring changes in recording intervals on a plurality of data tracks. Whenever all of the tracks indicate an unacceptable change in the recording interval an unacceptable speed variation has been encountered.

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