Three pole, single element read/write head

Details Three pole, single element read/write head Three pole, single element read/write head

G - Physics

11

B

352/29.02

G11B 5/127 (2006.01) G11B 5/09 (2006.01) G11B 5/17 (2006.01) G11B 5/265 (2006.01) G11B 5/31 (2006.01) G11B 15/12 (2006.01)

Patent

CA 1236569

THREE POLE SINGLE ELEMENT MAGNETIC READ/WRITE HEAD ABSTRACT A magnetic head has three pole pieces that form a magnetic circuit. The magnetic pole pieces are arranged in a common plane so that the two outside pole pieces are each spaced from the central pole piece to form a transducing gap between each of the outside pole pieces and the central pole piece. A first and a second coil, each having the same magnetic sense is wound on the magnetic structure between an outside and the center pole piece. The coils are connected in series for a write operation so that the flux in the outside pole pieces is additive for writing, and the coils are connected in series opposition for a read operation so that the flux produced in the center pole by a previously recorded magnetic transition in the magnetic recording medium adjacent to the transducing gaps is sensed additively in the coils.

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