Library unit for calculating inclination of an accessor to corre

Details Library unit for calculating inclination of an accessor to corre Library unit for calculating inclination of an accessor to corre

1996-12-27

1999-12-21

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

G11B 1722

Patent

active

060057343

ABSTRACT:
A library unit including a plurality of frames and a plurality of cell shelves, each of the cell shelves having a plurality of cells arranged in an X-Y plane. The plurality of cell shelves are located in at least one of the plurality of frames, at least one accessor having a picker portion, and a plurality of first reference flags, each of which having substantially the same X-axis coordinate are provided with each of the frames with a spacing in the Y-axis direction. According to the library unit, the plurality of first reference flags are detected by a sensor attached to the picker portion, and a relative inclination angle of the accessor with respect to the Y axis in the X-Y plane is calculated from a difference in position in the X-axis direction of plurality of reference flags in order to obtain a correction value in the X-axis direction for each cell.

REFERENCES:
patent: 5513156 (1996-04-01), Hanaoka et al.
patent: 5581522 (1996-12-01), Sibuya et al.
patent: 5703843 (1997-12-01), Katsuyama et al.

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