Signal reproduction method and magnetic recording and reproducin

Details Signal reproduction method and magnetic recording and reproducin Signal reproduction method and magnetic recording and reproducin

1996-09-06

1999-09-07

Faber, Alan

Dynamic magnetic information storage or retrieval

General recording or reproducing

369126, 360113, 360103, 360 66, G11B 509

Patent

active

059496002

ABSTRACT:
A magnetic recording and reproducing apparatus, including a probe made of a ferromagnetic film movable relative to a magnetic recording medium while having a distal end facing the magnetic recording medium; a head section having a recording element for recording a signal on the magnetic recording medium and a reproducing element including at least a probe for reproducing a signal recording on the magnetic recording medium; and a head slider for mounting the head section. The head slider includes a slider section having a slider surface facing the magnetic recording medium and configured to receive a hydrodynamic force generated by a dynamic effect of a gaseous flow caused by rotation of the magnetic recording medium, and a head support, coupled to the slider section, for supporting the head section such that the reproducing element contacts the magnetic recording medium, the head support having a mass smaller than that of the slider section, an area of a surface of the head support facing the magnetic recording medium being smaller than an area of the slider surface. The apparatus also includes a DC voltage application device for applying a DC voltage between the probe and a recording layer; and a device for detecting a tunnel current flowing between the distal end of the probe and the recording layer through a non-magnetic layer by application of the DC voltage, thereby reproducing a signal recorded on the magnetic recording medium.

REFERENCES:
patent: 5237529 (1993-08-01), Spitzer
patent: 5264794 (1993-11-01), Burke et al.
patent: 5375087 (1994-12-01), Moreland et al.
patent: 5418667 (1995-05-01), Best et al.
patent: 5583727 (1996-12-01), Parkin
patent: 5629922 (1997-05-01), Moodera et al.
patent: 5712612 (1998-01-01), Lee et al.

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