Optical disk information recording apparatus and reproducing app

Details Optical disk information recording apparatus and reproducing app Optical disk information recording apparatus and reproducing app

1995-06-06

1996-11-05

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 54, G11B 7085

Patent

active

055724930

ABSTRACT:
Optical disk information recording apparatus and reproducing apparatus are designed to efficiently improve the transfer rate in information recording and reproduction, and have compatibility with the existing recording apparatus and reproducing apparatus using a single light beam while keeping the disk form with a single spiral track structure. Beam spots are simultaneously irradiated on a plurality of different radial positions on a disk at a pitch of a predetermined number of tracks to independently record various information signals, and the optical head is allowed to jump over a predetermined number of tracks every time the disk makes a predetermined number of turns. Another feature lies in that beam spots are simultaneously irradiated on a plurality of different radial positions on a disk at a pitch of a predetermined number of tracks to independently record various information signals, and a jump over a predetermined number of tracks is made in a predetermined interval corresponding to a period from the point where each light beam has made a track jump during which period signals are stably reproducible or recordable.

REFERENCES:
patent: 4759007 (1988-07-01), Eberly
patent: 4796247 (1989-01-01), Vogelsang
patent: 5054013 (1991-10-01), Kawamura
patent: 5208792 (1993-05-01), Imanaka

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