Write precompensation amount setting method and apparatus

Details Write precompensation amount setting method and apparatus Write precompensation amount setting method and apparatus

2006-08-15

2006-08-15

Young, Wayne (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Pulse crowding correction

C360S069000, C324S210000, C324S224000

Reexamination Certificate

active

07092179

ABSTRACT:
A write precompensation amount setting method and apparatus comprise a function detecting the respective head characteristics with an electric current used at an ordinary temperature and a irregular electric current, and a function setting an optimum write precompensation amount at a low temperature according to the detected head characteristics.As a result, a write precompensation amount is corrected according to the characteristics of the normal current and the irregular current, and a write precompensation amount is determined, so that the write precompensation amount with higher accuracy than that with a conventional technique can be determined.

REFERENCES:
patent: 6043944 (2000-03-01), Yamasaki et al.
patent: 6954320 (2005-10-01), Yang
patent: 2002/0105748 (2002-08-01), Lamberts
patent: 10-340413 (1998-12-01), None
patent: 2002170202 (2002-06-01), None
patent: WO 03/005348 (2003-01-01), None

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