Optical recording and reproducing apparatus using optical record

Details Optical recording and reproducing apparatus using optical record Optical recording and reproducing apparatus using optical record

1994-10-27

1996-04-16

Hindi, Nabil Z.

Dynamic information storage or retrieval

Signal processing by storage and subsequent retrieval

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.

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