Data storage device and write processing method for data...

Details Data storage device and write processing method for data... Data storage device and write processing method for data...

2005-07-15

2008-09-30

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S078040, C360S078060, C360S046000, C360S065000

Reexamination Certificate

active

07430089

ABSTRACT:
A data storage device executes sector guarantee processing at an unexpected power supply disconnection. The sector guarantee processing can be accurately performed even if the fluctuation of power supply voltage during normal operation is high. The voltage of the power supply is monitored via an A/D converter. The control unit calculates a voltage change value, which is a relative value of the detected voltage of the power supply, and judges power supply disconnection by the level of the voltage change value, to perform sector guarantee processing. The voltage fluctuation during normal operation and the voltage fluctuation at power supply disconnection can be distinguished, power supply disconnection can be accurately detected, and write disable status can be judged.

REFERENCES:
patent: 5345342 (1994-09-01), Abbott et al.
patent: 5675236 (1997-10-01), Nakanishi
patent: 5889629 (1999-03-01), Patton, III
patent: 6014282 (2000-01-01), Ito
patent: 6104557 (2000-08-01), Kasai et al.
patent: 6396652 (2002-05-01), Kawachi et al.
patent: 6407480 (2002-06-01), Nakanishi et al.
patent: 6680878 (2004-01-01), Minabe et al.
patent: 6859340 (2005-02-01), Brittner et al.
patent: 6924956 (2005-08-01), Kurihara
patent: 6972918 (2005-12-01), Kokami et al.
patent: 7039821 (2006-05-01), Potega
patent: 7215497 (2007-05-01), Urata
patent: 02-154359 (1990-06-01), None
patent: 11-143788 (1999-05-01), None
patent: 2000-122813 (2000-04-01), None
patent: 2000122813 (2000-04-01), None

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