Apparatus and media for recording data on two sides of a magneti

Details Apparatus and media for recording data on two sides of a magneti Apparatus and media for recording data on two sides of a magneti

1992-06-01

1994-03-08

Kwon, John T.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

36013021, G11B 1543

Patent

active

052932850

ABSTRACT:
The data recording system writes data on both sides of a two sided magnetic recording tape, in directions of magnetization that are angular displaced with respect to each other, to reduce the effects caused by contact recording and magnetic print through. The media used for the magnetic tape consists of a standard mylar substrate to which a coating of magnetic recording materials is applied, on both sides thereof. In order to reduce the effect of magnetic print through and contact recording, the particles or films that are applied to both sides of the substrate are oriented in differing magnetic orientations that are angularly displaced with respect to each other and two sets of read/write heads are used. The read/write heads can be oriented to produce magnetic fields on one side of the magnetic tape that are angularly displaced with respect to the magnetic fields created on the other side of the magnetic tape. In one embodiment, the azimuth angles of the two read/write heads are selected to be angularly displaced with respect to each other in two dimensions, coplanar with the recording surface of the magnetic tape.

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patent: 4991038 (1991-02-01), Grant et al.
patent: 5173828 (1992-12-01), Tanzer et al.

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