Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1994-03-16
1995-09-19
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Head
Plural gaps
360126, G11B 529
Patent
active
054521653
ABSTRACT:
The present invention includes a plurality of thin film magnetic heads which are arranged in a linear array with a spacing D between adjacent heads. The pole pieces of the magnetic heads are positioned in a side by side relationship in contrast to the normal pancake type of magnetic head. The linear array is angled at a skew angle .theta. with respect to the direction of travel of the magnetic medium. The track pitch is then D sin .theta.. The track width is substantially equal to the thickness of the pole tips P1T and P2T of the magnetic heads. This thickness can be in the order of 3 .mu.m. With such a pole tip thickness the track pitch of each magnetic head in the linear array can be 3-4 .mu.m. A plurality of narrow data tracks can then be provided with minimum pitch by a corresponding number of magnetic heads. The write signals are simultaneously fed to the heads or the read signals are simultaneously fed to the heads. This allows high data rates to be processed. The invention also provides different azimuth between adjacent heads to minimize cross talk between the tracks caused by track misregistration. Additional magnetic heads can be employed for servo control as needed.
REFERENCES:
patent: 3662119 (1972-05-01), Romankiw et al.
patent: 4149204 (1979-04-01), Marino et al.
patent: 4701820 (1987-10-01), McClure
patent: 4738021 (1988-04-01), McClure
patent: 4811146 (1989-03-01), Niwa
patent: 4819113 (1989-04-01), Kubota et al.
patent: 4901178 (1990-02-01), Kobayashi et al.
patent: 4975791 (1990-12-01), Eggebeen
patent: 5016342 (1991-05-01), Pisharady
patent: 5132859 (1992-07-01), Andricacos et al.
patent: 5134534 (1992-07-01), Sasaki
patent: 5237476 (1993-08-01), Bischoff
patent: 5296992 (1994-03-01), Abe
J. M. Coutellier, H. Magna, X. Pirot, "A 384 Track Fixed Recording Head," Digest of the Intermag Conference 1992, Paper D-P09, Apr. 13-16, 1993, St. Louis, Mo., Library of Congress No. 72-649866.
Chen Mao-Min
Ju Kochan
Krounbi Mohamad T.
Tang Denny D.
Wang Po-Kang
Heinz A. J.
International Business Machines - Corporation
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