Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1997-12-23
2000-07-11
Tran, Thang V.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
G11B 700
Patent
active
060883103
ABSTRACT:
A pickup for a recording and reproducing system has a hologram for dividing a laser beam from a laser diode into a main beam and a plurality of sub-beams. The hologram is provided to locate the sub-beams at positions rearward with respect to a scanning direction of the main beam.
REFERENCES:
patent: 5239529 (1993-08-01), Tobita et al.
patent: 5267226 (1993-11-01), Matsuoka et al.
patent: 5457670 (1995-10-01), Maeda et al.
Pioneer Electric Corporation
Tran Thang V.
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