Rotation recording apparatus and method of inspection thereof

Details Rotation recording apparatus and method of inspection thereof Rotation recording apparatus and method of inspection thereof

2005-08-30

2005-08-30

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

Reexamination Certificate

active

06937408

ABSTRACT:
In addition to the conventional test pattern writing in a center of each track and inspection of burst patterns (A and B patterns) through a writing test in a SAT, there is also performed a test pattern data writing test, which is done at each boundary between tracks. With this additional test, it is possible to accurately inspect both C and D burst patterns that are sensitive to a PES signal at each boundary between tracks.

REFERENCES:
patent: 5870243 (1999-02-01), Ukani et al.
patent: 5872677 (1999-02-01), Kagami et al.
patent: 9-180388 (1996-08-01), None

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