Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1989-11-16
1990-08-14
Stephan, Steven L.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 30, 369 38, G11B 1726, G11B 1722
Patent
active
049493248
ABSTRACT:
A disc-type recording medium transfer mechanism includes a tray transfer device movable in a first direction parallel to the direction of stacking of a plurality of trays, and also movable in a second direction perpendicular to the first direction to transfer a selected one of the trays between its storage position within a magazine and a playback standby position outside the magazine. A tray storage position memory member is movable in the first direction and releasably engageable with the tray transfer device for movement in the second direction together with the tray transfer device only when the tray transfer device is disposed in a tray insertion/withdrawal position. Upon departure of the tray transfer device from the tray insertion/withdrawal position, the memory member is detached from the tray transfer device and left over in a position previously assigned when it is engaged with the tray transfer device before the tray transfer device departs from the tray insertion/withdrawal portion. The movement of the tray transfer device is controlled by a drive device and a contact-type switch is associated with the memory member for controlling the operation of a drive device depending on the arrested position of the memory member in the first direction.
REFERENCES:
patent: 2161483 (1939-06-01), Mueller
patent: 3246899 (1966-04-01), Bodenroder
patent: 3503615 (1970-03-01), Matsuda
patent: 4792865 (1988-12-01), Baumeister
patent: 4815056 (1989-03-01), Toi et al.
Stephan Steven L.
Tanashin Denki Co. Ltd.
Wells Kenneth B.
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