Test method of a magnetic disk and magnectic disk tester

A test burst signal is overwritten from a write end position over a connecting region determined by positional deviation between a read head and a write head and a peripheral speed of a disk. Since, therefore, the overwritten signal portion is overlapped on the test burst signal written at a write s...

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Bibliographic Details
Main Authors Shitara, Kenichi, Kato, Haruyoshi
Format Patent
LanguageEnglish
Published 19.04.2011
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Summary:A test burst signal is overwritten from a write end position over a connecting region determined by positional deviation between a read head and a write head and a peripheral speed of a disk. Since, therefore, the overwritten signal portion is overlapped on the test burst signal written at a write start point, it is possible to reduce a width of the connecting region to thereby reduce a test inhibit region.