Method of assembling a small distance read/write head with inher

Details Method of assembling a small distance read/write head with inher Method of assembling a small distance read/write head with inher

1995-03-06

1997-08-26

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

2960309, G11B 5127

Patent

active

056599455

ABSTRACT:
A magnetic head assembly, for use in a tape drive wherein a tape is moved past the head assembly in a longitudinal direction and the tape exhibits transverse tape movement cross-correlated by obtaining repeated measurements at the same longitudinal position of the tape, and wherein a minimum longitudinal distance exists for which the cross-correlation is maintained, has a carrier with first and second gap and coil arrangements disposed on the carrier. The respective gaps in the first and second gap and coil arrangements are disposed on the carrier separated by a spacing which is less than the aforementioned minimum longitudinal distance. If one gap and coil arrangement is used as a write arrangement, and the other gap and coil arrangement is used as a read arrangement for verifying the writing of data by the write arrangement, tracking errors are minimized, or substantially avoided, because the write and read arrangements are so close to each other as to be effectively at the same position in the context of the cross-correlated transverse tape movements.

REFERENCES:
patent: 4719527 (1988-01-01), Yoshisato et al.
patent: 5128811 (1992-07-01), Van Gestel
patent: 5218498 (1993-06-01), Jagielinski
patent: 5379165 (1995-01-01), Pahr
The Fourier Transform and Its Applications, Bracewell, (1986), pp. 44-45.
The Fourier Integral and Its Applications, Papoulis, (1962), pp. 244-245, 252-253.
Patent Abstracts of Japan, vol. 7, No. 212 (P-224), Japanese Application No. 810207900.
Patent Abstracts of Japan, vol. 11, No. 201 (P-590), Japanese Application No. 850160716.

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