Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1992-12-10
1994-03-08
Young, W. R.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4428, 369 4429, 369 4432, 369 54, G11B 7095
Patent
active
052933644
ABSTRACT:
A stable and rapid track access control device capable of preventing, in the event of driving a converging lens of an optical disk drive to move a light beam, the lens from moving excessively. Assume that when the lens is driven to move the light beam, the movement of the lens exceeds a range which an optical lens can follow, increasing the positional deviation of the lens relative to the head. Then, the movement of the lens is so regulated as to equalize the speed of the lens and that of the head relative to each other.
REFERENCES:
patent: 4562562 (1985-12-01), Moriya et al.
patent: 5117410 (1992-05-01), Akiyama
patent: 5199012 (1993-03-01), Imai
NEC Corporation
Young W. R.
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