Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1991-12-10
1994-05-24
Psitos, Aristotelis
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 47, G11B 700
Patent
active
053155696
ABSTRACT:
An apparatus for recording/reproducing optical information on/from an optical card, in which optical information is recorded and/or reproduced on/from said optical card by relatively moving the optical card and an optical head with respect to each other in a track direction and a tracking direction; the optical head and optical card are driven by a driving motor with respect to each other under a normal moving condition of the apparatus; in the apparatus it is arranged such that an anomalous condition of the relative movement between the optical card and the optical head is detected and when this anomalous condition is detected, an operational movement of said apparatus is changed such as that for instance, as to stop an electric supply to the driving motor.
REFERENCES:
patent: 4800546 (1989-01-01), Shikichi et al.
patent: 4885458 (1989-12-01), Horiguchi et al.
patent: 4982393 (1991-01-01), Matsushita et al.
patent: 5008552 (1991-04-01), Kuramochi et al.
patent: 5083301 (1992-01-01), Matoba et al.
patent: 5105072 (1992-04-01), Saito et al.
Saito Akito
Togawa Tsuyoshi
Olympus Optical Co,. Ltd.
Psitos Aristotelis
Tran Thang V.
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