Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1997-11-12
1999-10-26
Huber, Paul W.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 4428, 369 50, G11B 390, G11B 509
Patent
active
059740132
ABSTRACT:
A disc reproducing device for detecting the position of a reproducing head along the radius of a disc for transferring the head to a targeted radial position on a disc. Since the radial position on the disc in which the optical pickup is positioned can be known prior to actuation of a variety of spindle servo functions, there is no necessity of reading out an address. As compared to a conventional device in which an optical pickup is transferred based on the address reproduced from the disc, access control can be realized more speedily. There is also no necessity of providing a imit switch for detecting the inner peripheral position.
REFERENCES:
patent: 5751676 (1998-05-01), Kusano et al.
patent: 5805548 (1998-09-01), Ishihara et al.
patent: 5881031 (1999-03-01), Asano et al.
Huber Paul W.
Sony Corporation
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