Optical recording medium, and apparatus and method for recording

Details Optical recording medium, and apparatus and method for recording Optical recording medium, and apparatus and method for recording

1994-03-23

1996-08-06

Epps, Georgia Y.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

G11B 700

Patent

active

055441491

ABSTRACT:
In an optical disk, since a header section has only one recording section for address information, the capacity of memory where a user can freely record data is increased. In an optical disk drive, four laser beams have a fixed positional relation. Based on the address information of a header section read out by at least one of the laser beams and the positional relation among the laser beams, the address information of tracks being scanned by the other laser beams is obtained. It is therefore possible to accurately record or reproduce information on the optical disk.

REFERENCES:
patent: 5070492 (1991-12-01), Ogawa et al.
patent: 5173886 (1992-12-01), Satoh et al.
patent: 5396340 (1995-03-01), Ishii et al.

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