G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 20/20 (2006.01) G11B 5/56 (2006.01)
Patent
CA 2142623
2142623 9500952 PCTABS00035 Azimuth error between a write head (16) and a read head (34) is determined by passing a multi-track tape (2) past the write head (16) and subsequently the read head (34). The signals written by the write head (16) and read by the read head (34) are analysed to determine the timing error (38) between best-match time-delayed portions (20-28) of these signals. This timing error (38) is indicative of the azimuth error.
L'erreur d'azimut entre une tête d'écriture (16) et une tête de lecture (33) est déterminée au moyen d'une bande multipiste (2) que l'on fait passer devant la tête d'écriture (16) et ensuite devant la tête de lecture (33). Les signaux écrits par la tête d'écriture (16) et lus par la tête de lecture (33) sont analysés pour permettre la détermination de l'erreur de temps (38) entre les fractions (20-28) de ces signaux temporisées et présentent une corrélation optimale. L'erreur de temps (38) indique l'erreur d'azimut.
Central Research Laboratories Limited
Ridout & Maybee Llp
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