Magnet-optical disc drive device with sure disc placement

Details Magnet-optical disc drive device with sure disc placement Magnet-optical disc drive device with sure disc placement

1993-12-16

1995-09-05

Epps, Gerogia Y.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, G11B 1100

Patent

active

054485371

ABSTRACT:
A magnet-optical disk drive device comprises a disc driving mechanism which includes a drive shaft powered by an electric motor. A magnet-optical disc is detachably connected to the drive shaft. A magnetic field modulation head is positioned at one side of the disc, and an optical unit is positioned at the other side of the disc. A moving mechanism is employed for moving both the magnetic field modulation head and the optical unit in a radial direction of the disc. The magnetic field modulation head is of a floating type wherein a head proper is forced to float above the surface of the disc due to the force of an air flow which is produced when the disc is rotated.

REFERENCES:
patent: 5122998 (1992-06-01), Mizuno et al.
patent: 5179544 (1993-01-01), Hezemans et al.
patent: 5193080 (1993-03-01), Mohri et al.
patent: 5224079 (1993-06-01), Inoue
patent: 5226024 (1993-07-01), Mukawa

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