Method and apparatus for head control, and disk-drive apparatus

Details Method and apparatus for head control, and disk-drive apparatus Method and apparatus for head control, and disk-drive apparatus

2007-06-12

2007-06-12

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S073030

Reexamination Certificate

active

10963754

ABSTRACT:
An apparatus that controls a head that reads data from and writes data to a recording medium of which a spinning speed is controlled based on a clock signal includes a clock-error detecting unit that detects an error in the clock signal, and a head-retraction control unit that controls the head in such a way that the head is safely retracted when the error is detected by the clock-error detecting unit.

REFERENCES:
patent: 4724495 (1988-02-01), Hedberg et al.
patent: 6236527 (2001-05-01), Uchiike et al.
patent: 6476996 (2002-11-01), Ryan
patent: 11-16259 (1999-01-01), None

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