Azimuth record head for minimizing and equalizing crosstalk between tracks of opposite azimuths
AssigneeAmpex Corporation
InventorGeorge R. Varian
Life of this patent
Estimating the term…
Loading patent…
AssigneeAmpex Corporation
InventorGeorge R. Varian
Estimating the term…
In an azimuth recording format, the crosstalk of the A channel into the B channel is higher than the crosstalk of the B channel into the A channel because, at the ends of a magnetic recording where the switching contour of constant magnetic field strength is equal to the media magnetization switching field, the switching contour follows a curve. The resulting curvature at the ends of the magnetic recording vary accordingly the angle of azimuth rejection between the B to A azimuth relative to the A to B azimuth at the edges of the track. The use of a record head of a unique design wherein the trailing pole face of the head extends laterally beyond its leading pole face at the over-writing side of the head, removes the curvature at the ends of the transition recordings forming the recorded tracks. In such record heads, the switching contour generated at the trailing pole face of the gap at the over-writing side of the head enters and exits the trailing core generally normal to the pole face and at points thereon which are spaced beyond the corresponding end of the leading core face. Thus, no curvature is generated at the end of the recordings which perform over-writing of the previous adjacent tracks recorded in the media. Thus, the record heads show the same minimized level of crosstalk between the A to B or the B to A azimuth channels.
A record head for providing an azimuth recording format of magnetic tracks of a selected width in a magnetic media while generating minimized and equal crosstalk between the tracks upon subsequent readout of the tracks, wherein over-writing of a previous track is performed by an over-writing side of the head, comprising:
A record head for providing an azimuth recording of magnetic tracks of a selected width and track pitch in a magnetic media while generating minimized and equal crosstalk between the recorded tracks upon their subsequent readout, the record head including a pair of bonded magnetic cores having a transducing gap of selected gap length formed therebetween by a first facing edge of preselected width in a first core in generally confronting relation with a second facing edge of second preselected width in a second core, comprising:
A method of providing an azimuth recording of magnetic tracks of selected track pitch in a magnetic media while generating minimized and equal crosstalk between the tracks upon their subsequent readout, utilizing a record head whose transducing gap is of a given gap length and is formed with a first facing edge of preselected width in generally confronting relation with a second facing edge of a second preselected width, comprising the steps of:
A method of recording an azimuth recording of recorded tracks of selected track pitch and of selected width in a magnetic media via a transducing gap of selected length while generating minimized and generally equal crosstalk between the tracks upon a subsequent readout process, comprising;
Dependencies are inferred from the claim text.