Magnetic head assembly having symmetrically positioned shield ri

Details Magnetic head assembly having symmetrically positioned shield ri Magnetic head assembly having symmetrically positioned shield ri

1997-06-04

2000-06-13

Miller, Brian E.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360125, G11B 5105

Patent

active

060756810

ABSTRACT:
A magnetic head assembly 1E is constituted in such a manner as a pair of magnetic head mechanisms 3E, 3E, which are formed by accommodating a magnetic head 5 in a shield ring, respectively, are disposed opposite by opposing the proximal end rail 15a and the distal end rail 15b of one magnetic head mechanism 3E to the distal end rail 15b and the proximal end rail 15a of the other magnetic head mechanism 3E, respectively. A pair of shield rings 6,6 are positioned symmetrically with respect to each other (not in off-set). A spacing L.sub.s of a pair of shield rings is shorter than a spacing L.sub.c between the one shield ring 6 and the other magnetic head core 8. The outer magnetic flux .phi. flows to each other shield ring 6, so that the flux .phi..sub.c which flows to the magnetic head core 8 reduces. Thus, the induced voltage in the coil generated by any outer magnetic field is controlled to reduce noise.

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patent: 5497283 (1996-03-01), Kato
patent: 5682280 (1997-10-01), Takahashi et al.

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