Dynamic magnetic information storage or retrieval – General recording or reproducing – Thermomagnetic recording or transducers
Reexamination Certificate
2011-02-01
2011-02-01
Tzeng, Fred (Department: 2627)
Dynamic magnetic information storage or retrieval
General recording or reproducing
Thermomagnetic recording or transducers
Reexamination Certificate
active
07880995
ABSTRACT:
A method according to one embodiment comprises using a heating device, inducing localized heating on a magnetic medium during a recording operation; detecting a temperature in a vicinity of the heating device; detecting a current of the heating device; and performing an action if a function of at least one of the temperature and the current is outside an acceptable operation zone. A method according to another embodiment comprises selecting an initial current of a heating device for inducing localized heating on a magnetic medium during recording operations; initiating the heating device; performing recording operations; monitoring a temperature in a vicinity of the heating device during the recording operations; and if a function of the temperature and the current is outside an acceptable operation zone, changing an operating parameter such that the function of the temperature and the current is in the acceptable operation zone.
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Hitachi Global Storage Technologies - Netherlands B.V.
Tzeng Fred
Zilka-Kotab, PC
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