Information recording on a track by logical operation of the inf

Details Information recording on a track by logical operation of the inf Information recording on a track by logical operation of the inf

1994-08-17

1996-09-24

Epps, Georgia Y.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369 4426, 369 4428, 369 4441, 3692753, 3692754, G11B 724

Patent

active

055597866

ABSTRACT:
An optical recording medium on which information data is to be recorded and on which an n-th recording track is located at a distance from the (n-1)th recording track preceding the n-th recording track in a recording region which is narrower than the diameter of a spot of a light beam radiated on the recording area, with recording data obtained on logical processing with recording data recorded on the (n-1)th recording track being recorded on the n-th recording track for increasing the storage capacity of information data, is disclosed. A return beam of a light beam radiated across two neighboring recording tracks on the optical recording medium is detected by a detector having first and second light receiving sections having a boundary line extending parallel to the recording track of the optical recording medium for reading out the information recorded on the optical recording medium based on the level of a sum or difference signal of the output signals of the first and second light receiving sections.

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