Optical information recording disk and optical information recording disk apparatus

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United States of America Patent

PATENT NO 4873679
SERIAL NO

07135453

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Abstract

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An optical information recording disk and optical information recording disk apparatus which increase the recording capacity of data recorded on the disk, and are capable of fast recording and reproduction. Logical tracks are arranged by sequentially merging physical tracks starting at the inner portion of the disk and physical tracks starting at the outer portion, and the number of sectors on corresponding tracks recorded at a constant linear density is invariably constant on the basis of the relation of arithmetical series. Consequently, the inventive system, despite of the MCAV system of constant disk speed, achieves track access and fast data transfer comparable with the conventional CAV system.

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Patent Owner(s)

Patent OwnerAddress
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD A CORP OF JAPAN1006 OAZA KADOMA KADOMA-SHI OSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Murai, Katsumi Kyoto, JP 23 570
Usui, Makoto Suita, JP 106 806

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