Optical information record/regenerating apparatus with device fo

Details Optical information record/regenerating apparatus with device fo Optical information record/regenerating apparatus with device fo

1986-09-24

1989-01-24

McElheny, Jr., Donald

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

358907, 235476, 235479, G11B 7085

Patent

active

048005460

ABSTRACT:
There is disclosed an optical information record/regenerating apparatus, provided with an optical system for forming a light spot on an optical information recording medium having plural tracks and a track jump area in the tracks, and an optical head movably supporting the optical system so as that the light spot can be moved at least to an adjacent track in the track jump area. Information recording and/or regeneration is achieved by moving both the optical head relative to the recording medium, and by moving the optical system within the optical head. However, the movement of the optical head is prohibited in the track jump area to stabilize the track control operation.

REFERENCES:
patent: 3854015 (1974-12-01), Janssen
patent: 4057832 (1977-11-01), Kappert
patent: 4236232 (1980-11-01), Jansen et al.
patent: 4330880 (1982-05-01), Van Dijk
patent: 4489406 (1984-12-01), Hsieh et al.
patent: 4567533 (1986-01-01), Assink
patent: 4567534 (1986-01-01), Groen et al.
patent: 4613963 (1986-09-01), Hirano

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