Media library system with improved media management scheme

Details Media library system with improved media management scheme Media library system with improved media management scheme

1994-12-02

1997-01-28

Levy, Stuart S.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 34, 360 92, G11B 1722, G11B 1568

Patent

active

055983855

ABSTRACT:
A media library system capable of reducing a time and an average moving distance of the media carrying unit required for exchanging the recording media. The system includes a storehouse having a plurality of storage cells for storing a plurality of recording media, a media driving unit for executing data read/write operation with respect to the recording media, and a media carrying unit for carrying the recording media between the storehouse and the media driving unit, so as to exchange a previously used recording medium mounted on the media driving unit with a new recording medium stored in the storehouse. The media exchange operation of the media carrying unit is controlled such that the storage cells of the storehouse are divided into at least two groups arranged in an order of average distances with respect to the media driving unit, including a first group with a shortest average distance with respect to the media driving unit and a last group with a longest average distance, and at least one vacant cell not storing any recording medium is secured among the storage cells of the first group after the media exchange operation is completed.

REFERENCES:
patent: 4945428 (1990-07-01), Waldo
patent: 4987533 (1991-01-01), Clark et al.
patent: 5235572 (1993-08-01), Tamai

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