发明名称 |
Method of adjusting magnetic head of magnetic tape recording and reproducing apparatus and magnetic tape recording and reproducing apparatus |
摘要 |
Processing wherein a measurement signal and an erasure signal are recorded on adjacent tracks of a recordable tape 10 by one recording head HWi of n (i=1 to n) recording heads is effected on n recording heads, and measurement signals are recorded on n tracks substantially simultaneously by n recording heads HW 1 to HWn in standard operation state. Then, reproducing heads with respect to thus obtained two kinds of tracks are displaced in track width directions, characteristic curves of reproduced signal waveform amplitudes of measurement signals displacement (off-track) amounts of tracks are obtained, half widths of these characteristic curves are assumed to be expedient track width and a variable Ri optimum and a variable Ri now corresponding to track widths of two kinds of tracks are obtained. Then, deviation between the variable Ri optimum and the variable Ri now is adjusted to become smaller than a desired value.
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申请公布号 |
US2007064336(A1) |
申请公布日期 |
2007.03.22 |
申请号 |
US20060519398 |
申请日期 |
2006.09.11 |
申请人 |
HIRASAKA HISATO;WAKITA TOSHIAKI |
发明人 |
HIRASAKA HISATO;WAKITA TOSHIAKI |
分类号 |
G11B5/584;G11B5/03;G11B15/14 |
主分类号 |
G11B5/584 |
代理机构 |
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代理人 |
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地址 |
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