Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1998-04-23
2000-12-26
Psitos, Aristotelis M.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369112, 369 54, G11B 7085
Patent
active
061670030
ABSTRACT:
An optical disc apparatus has a first objective lens for a first optical disc such as a CD and a second objective lens for a second optical disc such as a DVD. The first and second objective lenses are mounted on a base that is transferrable in a direction of radii of the first and second optical discs coaxially installed in the optical disc apparatus. A first center of the first objective lens is located on a first line passing through a center of the first optical disc. On the other hand, a second center of the second objective lens is located on a second line orthogonal to the first line. The first and centers are separated from each other by a predetermined distance.
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patent: 5777959 (1998-07-01), Nakagawa et al.
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patent: 5986984 (1999-11-01), Nakamura et al.
Patent Abstracts of Japan, vol. 97, No. 4, Apr. 30, 1997 & JP 08 329517 A (Sanyo Electric Co Ltd), Dec. 13, 1996.
Haneji Yasuo
Mori Yasuhiro
Yamaguchi Yasuhiro
Yoshida Akira
Psitos Aristotelis M.
Victor Company of Japan Ltd.
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