Stepping motor servo control system for a floppy disk drive

Details Stepping motor servo control system for a floppy disk drive Stepping motor servo control system for a floppy disk drive

1988-12-09

1990-06-12

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 360 7706, H02P 800

Patent

active

049336193

ABSTRACT:
A stepping motor servo control system for a floppy disk drive, which can increase the track recording density and maintain the interchangeability among different recording media because it is not necessary to pre-format any track servo control information on the media according to this system. This system includes a read/write head and at least two erase heads which are controlled to perform data reading in a track seeking mode so that signals read out by the erase heads may be used as track servo control information of the stepping motor.

REFERENCES:
patent: 4164781 (1979-08-01), Brown
patent: 4775902 (1988-10-01), Trovato et al.

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