Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1994-07-07
1995-06-13
Epps, Georgia Y.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4426, 369 4441, 369 54, G11B 700
Patent
active
054250102
ABSTRACT:
An optical information recording/reproducing apparatus for performing tracking servo and at least one of recording and reproducing information by irradiating a recording medium having a plurality of guide tracks and a plurality of information tracks with a light spot and by generating a track error signal from reflected light of the light spot. The apparatus includes a photo-detecting device having a detection portion composed of a plurality of light receiving portions which are disposed in a two-dimensional array, the detection portion receiving formed spot of light reflected by the recording medium so as to output a signal, an addition device for selecting a region having an arrangement of the plurality of light receiving portions in a line or column direction in the detection portion of the photo-detecting device and for adding together outputs from the arrangement of the light receiving portions in the selected regions, a binary coding device for binary-coding output from the addition device, an address detection device for detecting the position of an address which corresponds to the position of at least one guide tracks on the basis of output from the binary cording device, and a track error generating device for generating a track error signal on the basis of the output from the address detection device.
REFERENCES:
patent: 4224480 (1980-09-01), Satoh et al.
patent: 4755980 (1988-07-01), Yoshimaru et al.
patent: 4819222 (1989-04-01), Kimura
patent: 5053610 (1991-10-01), Horie
patent: 5101096 (1992-03-01), Ohyama et al.
patent: 5155718 (1992-10-01), Hashimoto et al.
patent: 5177718 (1993-01-01), Takeuchi
patent: 5257249 (1993-10-01), Rokutan
Joit, vol. 3, No. 2/1988, pp. 32-38.
Epps Georgia Y.
Hindi Nabil
Olympus Optical Co,. Ltd.
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