Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1994-10-26
1996-10-15
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360109, G11B 555, G11B 556, G11B 2110, G11B 2112
Patent
active
055660398
ABSTRACT:
A magnetic tape head positioning device for vertically displacing the magnetic head relative to the tape path. The read/write head positioning device is implemented in a tape drive system for reading and writing magnetic data on a plurality of parallel data tracks of a magnetic medium which is moving longitudinally on a tape transport path of a high performance tape path system. The read/write head positioning device includes a support body which is fixedly secured in a position which is proximate to the tape transport path. It also has a head housing configured to securely support a magnetic head such that the magnetic head may be selectively aligned with respect to the plurality of parallel data tracks. The head housing has a front face positioned across a transverse dimension of the passing magnetic medium. Coupled to the head housing is a head housing base which is fixedly attached to, and extending vertically from, a top surface of the support base. The head housing and the head housing base are parallel to each other. The head positing device also includes a pair of flexures or flat springs for stabilizing the vertical movement of the head housing in the transverse direction to the passing magnetic tape media. A first flexure or flat spring is attached to a top surface of the head housing and to a top surface of the head housing base. A second flat spring is fixedly attached to a bottom surface of the head housing and to a bottom surface of the head housing base. A means for moving the head housing in a direction transverse to the direction of the magnetic medium movement in also included in the read/write positioning device of the present invention. This may be an electromagnetic device, such as a voice coil, or a piezoelectric device. The moving device moves the magnetic head in a vertical direction such that the magnetic head can read and write data to a plurality of tracks.
REFERENCES:
patent: 4363046 (1982-12-01), Saito
patent: 4646183 (1987-02-01), Cohen
patent: 5179486 (1993-01-01), Kraemer et al.
patent: 5280402 (1994-01-01), Anderson et al.
Storage Technology Corporation
Tupper Robert S.
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