Device for selecting magnetic head to be operated together with

Details Device for selecting magnetic head to be operated together with Device for selecting magnetic head to be operated together with

1995-02-03

1996-04-30

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 54, 369 58, 369 13, G11B 7085

Patent

active

055131590

ABSTRACT:
A device is provided for selecting a magnetic head to be operated together with an optical head to record or reproduce a signal on a magneto-optical disc. The device includes a first magnetic head and a second magnetic head, each having different capabilities. The first and second magnetic heads are arranged along a radial direction with respect to a magneto-optical disc. The device is capable of determining the type of magneto-optical disc being used, and upon such determination, controls the position of a carriage to position either the first or second magnetic head to face the optical head.

REFERENCES:
patent: 4962494 (1990-10-01), Kimura
patent: 5078471 (1992-01-01), Takishima
patent: 5191562 (1993-03-01), Hensing et al.
patent: 5191570 (1993-03-01), Shirai
patent: 5297114 (1994-03-01), Itoh et al.
patent: 5309423 (1994-05-01), Noguchi et al.
patent: 5321550 (1994-06-01), Maruyama et al.
patent: 5406532 (1995-04-01), Nishikawa
patent: 5408455 (1995-04-01), Takishima
Patent Abstracts of Japan, vol. 18, No. 587, (P1824), Nov. 10, 1994, & JP6-215434.
Patent Abstracts of Japan, vol. 16, No. 502, (P1438), Oct. 16, 1992, & JP4-181535.

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