Optical-information-recording apparatus having fine and rough dr

Details Optical-information-recording apparatus having fine and rough dr Optical-information-recording apparatus having fine and rough dr

1995-02-23

1996-08-20

Epps, Georgia Y.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369249, 359824, G11B 700, G02B 702

Patent

active

055485685

ABSTRACT:
An information recording-reproducing apparatus for optically effecting the recording and/or reproduction of information on a disk-like recording medium having a plurality of tracks thereon includes an optical head for applying a light beam for effecting the recording and/or reproduction of the information to a desired track on the medium, a guide for guiding the optical head radially of the medium to have access to the desired track on the medium, and a yoke and a permanent magnet fixed to the apparatus and a first linear motor coil for the rough driving and a second linear motor coil for the precise driving provided on the optical head to generate a driving force for moving the optical head along the guide.

REFERENCES:
patent: 4449213 (1984-05-01), Noborimoto et al.
patent: 4819109 (1989-04-01), Okada et al.
patent: 4937510 (1990-06-01), Konno et al.
patent: 4942562 (1990-07-01), Suzuki
patent: 4985882 (1991-01-01), Tanaka et al.
patent: 5018033 (1991-05-01), Miyazaki et al.
patent: 5063548 (1991-11-01), Yamashita et al.
patent: 5097456 (1992-03-01), Tanoshima et al.
patent: 5101398 (1992-03-01), Inoue et al.
patent: 5150343 (1992-09-01), Goto et al.
patent: 5157642 (1992-10-01), Tsukamura et al.
patent: 5187702 (1993-02-01), Takahashi
patent: 5189659 (1993-02-01), Ohta
patent: 5218587 (1993-06-01), Nomiyama et al.
Artken et al, University Physics, 1984 pp. 671-672.

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