Disc drive unit

Details Disc drive unit Disc drive unit

1997-04-10

1998-09-29

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 752, 369 772, 360 9907, 360105, G11B 1704, G11B 5012, G11B 3302

Patent

active

058154701

ABSTRACT:
A disc drive unit for a magneto-optical disc accommodated in a disc cassette, comprises a magnetic head for applying a magnetic field to the magneto-optical disc, a magnetic head moving mechanism for moving the magnetic head between a loading and unloading position, an eject mechanism for ejecting the disc cassette, a reversible motor, and a transmission device for transmitting a rotational force of the reversible motor to the magnetic-head moving mechanism by rotation of the motor in its one rotational direction and for transmitting the rotational force of the reversible motor to the eject mechanism in its other rotational direction whereby a controller is provided for controlling the reversible motor so that a rotational speed of the motor in the other rotational direction used for the eject mechanism is faster that the rotational speed of the reversible motor in the one rotational direction used for the magnetic-head moving mechanism in order to ensure the quick ejection of the disc cassette.

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U.S. application No. 08/228,682, f. Apr. 12, 1994.
U.S. application No. 08/090,918 f. Jul. 12,1993.

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