Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1997-03-21
1999-11-09
Kiliman, Leszek
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428 644, 428 653, 428694ML, 428694MM, 369 13, 369272, 3692751, 3692753, 3692754, 369277, 369288, G11B 566
Patent
active
059810165
ABSTRACT:
The present invention provides a magneto-optical medium and a reproducing device for the medium. In the magneto-optical medium, a mark in a magneto-optical recording area is so formed as to correspond to one of "1" and "0" of data to be recorded, and in a pre-formatted recording area, a pit in formed so that an edge of said pit corresponds to one of "1" and "0" of the data to be recorded. Therefore, when the magneto-optical recording area and the pre-formatted recording area have substantially the same linear recording density, only one pit exists in the spot area of a reproducing beam. As a result, an excellent characteristics can be obtained due to a superresolution effect.
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Kaneko, et al., "Multilayered Magneto-Optical Disks for Magnetically Induced Superresolution," Jpn. J. Appl. Phys., vol. 31 (1992), pp. 568-575 .
Fujitsu Limited
Kiliman Leszek
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