Storage apparatus, control method and control apparatus

Details Storage apparatus, control method and control apparatus Storage apparatus, control method and control apparatus

2006-06-19

2009-11-10

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S060000

Reexamination Certificate

active

07616394

ABSTRACT:
The heads have write head elements which record data onto a disk medium capable of coping with perpendicular magnetic recording and read head elements which reproduce data. The monitored band detecting unit sets a frequency band in a range from the signal band of the write data signal to the error rate worsening band on a lower level in which the error rate worsens as a monitored band, and detects a signal in the monitored band from among write data entered into the write amplifier. The determining unit discontinues the recording operation of the write amplifier upon determination that a detection signal of the monitored band detected by the monitored band detecting unit is larger than a prescribed threshold value and outputs a determination signal from the fault terminal to generate a fault event.

REFERENCES:
patent: 5550925 (1996-08-01), Hori et al.
patent: 2002/0191314 (2002-12-01), Ottesen et al.
patent: 04-001976 (1992-01-01), None
patent: 11-306698 (1999-11-01), None
patent: 2001-344705 (2001-12-01), None

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