Method for driving stepping motor for head seek in disk drive de

Details Method for driving stepping motor for head seek in disk drive de Method for driving stepping motor for head seek in disk drive de

1993-01-21

1996-12-03

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

318696, G11B 5596

Patent

active

055814212

ABSTRACT:
In a method for driving a head-seek stepping motor of a disk drive device of the kind performing a head seek to move a recording or reproducing head in a radial direction of a disk-shape recording medium by driving the stepping motor according to pulses of a step signal, a period of time for exciting the stepping motor at one time in response to each pulse of the step signal is set at a length of time which is shorter than a pulse interval of the step signal and which is a minimum length of time necessary for the head seek when the pulses of the step signal are continuously inputted for a continuous head seek, and a re-exciting action is performed on the stepping motor in its last excited phase for a given period of time at the end of the continuous head seek.

REFERENCES:
patent: 4959738 (1990-09-01), Fujii et al.
patent: 5060093 (1991-10-01), Kawahara
patent: 5196777 (1993-03-01), Kataoka
patent: 5264771 (1993-11-01), Kawauchi

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