Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1997-05-05
1999-03-30
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Hall effect
360 7703, G11B 5127, G11B 5596
Patent
active
058896414
ABSTRACT:
An assembly for accessing data bits in storage locations on a succession of radially separated tracks on a rotating multilayer MSR disc comprising a storage layer and a readout layer in combination with a slider flyable over a surface of the disc with the slider supporting at least one optical element coupled to the assembly, the optical element directing light to a region of the disc including one or more storage locations, with the optical element comprising an optical fiber and a micro-machined mirror supported on the slider and adapted to direct the light to storage locations on the recording layer of the disc, a conductive coil is coupled to and supported on the assembly, a passage of current through the conductor coil is sufficient to establish a magnetic field which is coupled to the disc and in cooperation with the light stores information at one of the storage locations on the storage layer, and a magneto-resistive element is coupled to the assembly, the magneto-resistive element cooperates with the light which illuminates and heats a plurality of the storage regions of the disc along one track of the disc, the magneto-resistive element senses one of the bits from the readout layer at the storage location.
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Belser Karl A.
Davis Joseph E.
Hurst, Jr. Jerry E.
McDaniel Terry
Seagate Technology Inc.
Wolff John H.
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