Magnetic tape recording medium, magnetic tape recording and reproducing apparatus, magnetic tape recording method and magnetic tape cassette
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United States of America Patent
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Apr 13, 2004
Grant Date -
Mar 7, 2002
app pub date -
Sep 6, 2001
filing date -
Sep 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic tape includes two servo tracks respectively extending in the longitudinal direction of the magnetic tape from the tape-width-direction two end portions of the magnetic tape, and a data area interposed between the two servo tracks. The azimuth angle .theta..degree. of the data track of the data area satisfies an equation of ##EQU1## where a data track pitch is expressed as p (m), a magnetic tape width is expressed as L (m) and the greatest dimension change rate is expressed as (a) (%). Since the azimuth angle .theta..degree. is determined in this manner, even in the case where the magnetic tape is deformed in shape and/or changed in dimension, an offtrack error can be prevented and thus, the data track can be traced in the data area accurately.
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