Recording medium library system

Details Recording medium library system Recording medium library system

1993-04-26

1995-07-11

Shoop, Jr, William M.

Electricity: motive power systems

Positional servo systems

318561, 318 46, 318757, 318362, G05B 1101

Patent

active

054324190

ABSTRACT:
A recording medium library system retaining up to a predetermined number of cartridge type recording media for recording/reproducing data on the recording medium is disclosed. The recording media are stored in a plurality of cells provided in a cell drum. The cell drum is rotatably driven such that a desired cell is brought to a target position. In the driving, an accelerating current, a braking current, and a positioning current are supplied to the motor in order of mention. At least the braking current is determined according to an input value of the inertia of the cell drum.

REFERENCES:
patent: 4495853 (1985-01-01), Gottwaldt
patent: 4558265 (1985-12-01), Hayashida et al.
patent: 5250884 (1993-10-01), Okumura

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