Method for recording bursts on a disk and related apparatus

Details Method for recording bursts on a disk and related apparatus Method for recording bursts on a disk and related apparatus

2006-11-07

2008-11-11

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

Reexamination Certificate

active

07450328

ABSTRACT:
Embodiments of the invention provide a method for recording bursts on a disk and a related apparatus. In accordance with an embodiment of the invention, a method for recording bursts on a burst field of a servo sector of a disk comprises generating a first write current corresponding to burst data provided by a write channel circuit, and generating a second write current having a higher frequency than the first write current using a high frequency AC current generator, wherein the high frequency AC current generator is independent from the write channel circuit. The method further comprises selectively applying the first write current to a write head in response to a signal and selectively applying the second write current to the write head in response to the signal.

REFERENCES:
patent: 3704349 (1972-11-01), Goshima et al.
patent: 3798673 (1974-03-01), Koinuma
patent: 4187521 (1980-02-01), Rotter et al.
patent: 4349848 (1982-09-01), Ishii et al.
patent: 4703378 (1987-10-01), Imakoshi et al.
patent: 4829392 (1989-05-01), Kuniharu
patent: 6025971 (2000-02-01), Inoue et al.
patent: 6229402 (2001-05-01), Kataoka et al.
patent: 6351340 (2002-02-01), Dixon
patent: 6429992 (2002-08-01), Ozue et al.
patent: 7173786 (2007-02-01), Antoku et al.
patent: 2007/0064336 (2007-03-01), Hirasaka et al.
patent: 1205911 (2002-05-01), None
patent: 1235205 (2002-08-01), None
patent: 05006729 (1993-01-01), None
patent: 11224473 (1999-08-01), None
patent: 2000-215626 (2000-08-01), None
patent: 2001-014816 (2001-01-01), None
patent: 2003-141834 (2003-05-01), None
patent: 2005-063667 (2005-03-01), None

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