High-density magnetic recording scheme
Abstract
Abstract A METHOD OF HIGH-DENSITY MAGNETIC RECORDING USING A MAGNETIC RECORDING HEAD HAVING A RECORDING GAP THAT IS INCUDTIVELY COUPLED TO A RELATIVELY MOVING OR STATIONARY THIN-FERROMAGNETIC-FILM RECORDING MEDIUM OF A THICKNESS THAT IS INSUFFICIENT TO SUPPORT BLOCK WALLS, I.E., CAN ONLY SUPPORT NEEL WALLS, BETWEEN ADJACENT DOMAINS AND HAVING AN EASY AXIS THAT IS ORTHOGONAL TO THE DIRECTION OF RELATIVE MOVEMENT OR PARALLEL TO THE RECORDING GAP. THE RECORDING MEDIUM''S INTERDOMAIN NEEL WALLS ARE FORMED WITH THE MAGNETIZATION WITHIN THE WALLS HAVING THE SAME DIRECTIONA ROTATIONAL, I.E., WINDING, SENSE, E.G., CLOCKWISE OR COUNTERCLOCKWISE, BY APPLYING FIRST OR SECOND AND OPPOSITE POLARITY ORTHOGONAL FIELDS HL AND JT IN THE RECORDING GAP.
Inventors
- 👤 Charles H Tolman
- 👤 Paul E Oberg
- 👤 Maynard C Paul
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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