Optical recording and reproducing apparatus using optical record

Dynamic information storage or retrieval – Signal processing by storage and subsequent retrieval

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Details

369124, 369 44370, G11B 700

Patent

active

055089909

ABSTRACT:
A recording and reproducing apparatus of an optical recording medium has a plurality of light sources. A plurality of light beams are radiated by a laser diode array to a track of the optical recording medium, and each of the plurality of light beams reflected by the track is detected by a photodiode and converted into an electrical signal. The laser diode array is arranged such that the beam spots of adjacent ones of the plurality of light beams cross a track direction of the optical recording medium and a track width direction perpendicular to the track direction. The signal detected by the photodiode is converted into an electrical signal and recorded in a frame memory as data corresponding to the signal. The digital data stored in the frame memory is read out by a two-dimensional decoder.

REFERENCES:
patent: 4287413 (1981-09-01), Kanamaru
patent: 4359750 (1982-11-01), Howe
patent: 4507763 (1985-03-01), Kato
patent: 4507772 (1985-03-01), Yamamoto
patent: 4634850 (1987-01-01), Pierce et al.
patent: 4929822 (1989-02-01), Nakamura et al.
patent: 4963464 (1990-10-01), Setani
patent: 4987301 (1991-01-01), Nakamura
patent: 5025438 (1991-06-01), Emoto
patent: 5034940 (1991-07-01), Saito et al.
patent: 5056080 (1991-10-01), Russell
patent: 5128919 (1992-07-01), Narahara et al.
patent: 5138592 (1992-08-01), Fujita
patent: 5153863 (1992-10-01), Noda et al.
patent: 5267226 (1993-11-01), Matsuoka et al.

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