Shielded servo heads with improved passive noise cancellation

Details Shielded servo heads with improved passive noise cancellation Shielded servo heads with improved passive noise cancellation

1990-12-05

1993-03-30

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Core

360126, 360127, 360110, G11B 517

Patent

active

051989484

ABSTRACT:
A servo head in a disk file data storage system includes at least one shield which acts to block radiation emanating from a nearby data head and thus reduce noise induced in the servo head. The shield is located on either side of an essentially flat conducting coil in a servo transducer, or a data transducer or both. The shield may be either a single layer of material or multiple layers.

REFERENCES:
patent: 4750071 (1988-06-01), Kato et al.
patent: 4758917 (1988-07-01), Gooch
patent: 4979064 (1990-12-01), Mage et al.

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