Acceleration sensing write disable system utilizing actuator arm

Details Acceleration sensing write disable system utilizing actuator arm Acceleration sensing write disable system utilizing actuator arm

1993-08-20

1996-02-13

Cabeca, John W.

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

318611, 318460, 360 69, 360105, 360 60, G05B 902, G11B 554

Patent

active

054913942

ABSTRACT:
A hard disk drive that contains a detection circuit which senses the back emf of a voice coil. The detection circuit generates a shock detection signal when the back emf of the voice coil exceeds a pre-determined value. The write disable gate of the disk drive is disabled when the voltage detection circuit generates the shock detection signal.

REFERENCES:
patent: 3626264 (1971-12-01), Halfhill
patent: 4200827 (1980-04-01), Oswald
patent: 4589036 (1986-05-01), Bertschy et al.
patent: 4679102 (1987-07-01), Wevers et al.
patent: 4901569 (1990-02-01), Lui
patent: 4979055 (1990-12-01), Squires et al.
patent: 5043834 (1991-08-01), Kubo et al.
patent: 5223771 (1993-06-01), Chari
patent: 5289097 (1994-02-01), Erikson et al.
patent: 5303101 (1994-04-01), Hatch et al.
patent: 5333138 (1994-07-01), Richards et al.

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