Magnetic tape drive having direct drive motor and extended head

Details Magnetic tape drive having direct drive motor and extended head Magnetic tape drive having direct drive motor and extended head

1996-04-29

1998-01-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

G11B 555, G11B 556, G11B 1532

Patent

active

057127450

ABSTRACT:
A magnetic tape drive having a motor with a magnetically shielded cavity or hole in one cover of the motor providing additional room for movement of a magnetic head. The cavity eliminates a mechanical interference problem, enabling direct drive of a roller (puck) combined with short overall drive height. In motors having an internal stator, some of the stator poles are eliminated and a magnetically shielded cavity is provided in the area where the stator poles are eliminated. In motors having an external stator, no stator modification is required and a shielded cavity provides access into an open area of the rotor. In addition, for motors having an external stator and sufficient magnetic shielding, a simple hole in one cover of the motor may be sufficient rather than a magnetically shielded cavity.

REFERENCES:
patent: 5210664 (1993-05-01), Perona
patent: 5304878 (1994-04-01), Oda et al.
patent: 5319270 (1994-06-01), Tanaka et al.
Alan J. Richards, "Mini Data Cartridge: A Convincing Alternative For Low-Cost, Removable Storage", Hewlett-Packard Journal, May 1976, p.12.

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