US 5,691,862 A · Recording/reproducing apparatus with an integrated inductive write, magnetoresistive read head

Abstract

In a recording/reproduction apparatus equipped with an integrated head comprising a thin film inductive write element and a MR read element and mounted on a head slider which is arranged to be rotatable about a point so as to be rotationally accessible to tracks of a disk serving as a recording medium to make yaw angles with respect to tangents of the tracks, the inductive write element and the MR read element are arranged so that a magnetic center line of the MR read element which extends in directions perpendicular to track crossing directions is separated from a geometric center line of the MR write element which extends in directions perpendicular to the track crossing directions. The separation between the inductive write element and the MR read element is determined as the result of a multiplication of 1/2 of the sum of the sine of the slider yaw angle with respect to the tangent of the innermost track on the disk and the sine of the slider yaw angle with respect to the tangent of the outermost track by the distance between a gap of the inductive write element and the center of the MR read element. This arrangement allows minimizing the off-track between the write and read modes which occurs due to the yaw angles.

Claims6

Dependent claims

An integrated head mounted on a head slider which is arranged to be rotatable about a point so as to be accessible to tracks of a disk serving as a recording medium to make yaw angles with respect to tangents of said tracks, said integrated head comprising:

write element means having a magnetic gap for writing data on said tracks of said disk;
and
read element means for reading data from said tracks of said disk, said read element means having a predetermined height in a direction perpendicular to a surface of said head slider and being located so that a center of said read element means as determined in a direction substantially parallel to track crossing directions, is separated by a first predetermined distance from said gap of said write element means, and a geometric center line of said read element means, which extends in a direction substantially perpendicular to said track crossing directions, is separated by a second distance from a geometric center line of said write element means, which extends in a direction substantially perpendicular to said track crossing directions.
wherein said second distance between said write element means and said read element means is determined on the basis of the sum of the sine of said slider yaw addles with respect to the tangents of the innermost and outermost tracks, said first distance between said write element means and said read element means, and the height of said read element means.
wherein said second distance is determined according to the following equation:
OFFSET=1/2.times.{sin (P1)+sin (P2)}.times.S+1/4H
where
OFFSET=said second distance between said write element means and said read element means;
P1=the slider yaw angle with respect to said tangent of the innermost track;
P2=the slider yaw angle with respect to the tangent of the outermost track;
sin(P1)=the sine of the slider yaw angle P1;
sin(P2)=the sine of the slider yaw angle P2;
S=said first distance between said write element means and said read element means;
and
H=the height of said read element means.

12 more elements

write element means having a magnetic gap for writing data on said tracks of said disk;
and
read element means for reading data from said tracks of said disk, said read element means having a predetermined height in a direction perpendicular to a surface of said head slider and being located so that a center of said read element means as determined in a direction substantially parallel to track crossing directions, is separated by a first predetermined distance from said gap of said write element means, and a geometric center line of said read element means, which extends in a direction substantially perpendicular to said track crossing directions, is separated by second distance from a geometric center line of said write element means, which extends in a direction substantially perpendicular said track crossing directions,
wherein said second distance between said write element means and said read element means is determined on the basis of the sum of the sine of said slider yaw angles with respect to the tangents of the innermost and outermost tracks, said first distance between said write element means and said read element means, and the height of said read element means,
wherein said second distance is determined according to the following equation:
OFFSET=1/2.times.{sin (P1)+sin (P2)}.times.S1/4.times.H
where
OFFSET=said second distance between said write element means and said read element means;
P1=the slider yaw angle with respect to said tangent of the innermost track;
P2=the slider yaw angle with respect to the tangent of the outermost track;
sin(P1)=the sine of the slider yaw angle P1;
sin(P2)=the sine of the slider yaw angle P2;
S=said first distance between said write element means and said read element means;
and
H=the height of said read element means.

12 more elements

Dependencies are inferred from the claim text.

Recording/reproducing apparatus with an integrated inductive write, magnetoresistive read head

Life of this patent

Recording/reproducing apparatus with an integrated inductive write, magnetoresistive read head

Life of this patent

Abstract

Claims6