Magnetic scanning system

Details Magnetic scanning system Magnetic scanning system

2005-02-08

2005-02-08

Sniezek, Andrew L. (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C369S013110, C369S013550, C360S059000, C360S077070

Reexamination Certificate

active

06853513

ABSTRACT:
A scanning device for scanning data-carrying disks. The disks include a magnetisable layer to and from which data is written and read using a magnetic transducer, such as a Giant Magneto-Resistive (GMR) transducer. Positioning of the transducer over a data track is achieved by optical tracking using a land/groove structure, and positioning of the transducer with respect to the optical tracking system by means of a reference beam transmitted through the disk.

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patent: 5535190 (1996-07-01), Moore et al.
patent: 5682360 (1997-10-01), Oshima
patent: 3714804 (1988-11-01), None
patent: 2105319 (1990-04-01), None
patent: 10340493 (1998-12-01), None

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