Arrangement for the elimination of crosstalk between data and se

Details Arrangement for the elimination of crosstalk between data and se Arrangement for the elimination of crosstalk between data and se

1983-09-30

1987-01-13

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

360103, G11B 517

Patent

active

046369007

ABSTRACT:
An arm assembly for a disk drive having a read/write head and a servo head on the same Winchester arm assembly is described. To eliminate the possibility of crosstalk from the data head during the write mode, to the servo head, a mumetal shield is used to partially surround the servo head ferrite core and coil. The servo head is a composite structure having a non-conducting body and a thin ferrite core so that the magnetic core volume to be shielded is minimized. In addition, a conducting layer and a ferramic plate is interposed between the data and servo heads to further isolate these heads.

REFERENCES:
patent: 3975771 (1976-08-01), Lazzari
patent: 4402025 (1983-08-01), Anderson
IBM TDB; vol. 18, #7, Dec. 1975, pp. 2258-2259; Castrodale et al, "Shield for Protect'g Mag. Head . . . ".

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