Optical disk apparatus

Details Optical disk apparatus Optical disk apparatus

1993-07-29

1995-07-18

Epps, Georgia Y.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4441, 369 4442, 369 4437, 369112, G11B 709

Patent

active

054348358

ABSTRACT:
The optical disk apparatus of this invention is provided with a memory for memorizing a track offset signal corresponding to an angle of a galvanic mirror, or a photodetector having two pairs of photodetecting regions to detect different tracking error signals to each other, or two galvanic mirrors which are adjusted so as to prevent the track offset signal.

REFERENCES:
patent: 4815060 (1989-03-01), Nomura
patent: 4866688 (1989-09-01), Ohtake et al.
patent: 5017786 (1991-05-01), Takagi
patent: 5031165 (1991-07-01), Fujita
patent: 5097458 (1992-03-01), Suzuki
patent: 5113386 (1992-05-01), Whitehead et al.
English Language Abstract of Japanese Publication 59-191143.

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