Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1993-10-15
1994-07-05
Psitos, Aristotelis
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 59, 369 47, G11B 700, G11B 509
Patent
active
053274148
ABSTRACT:
A signal recording method for an optical disk and an apparatus therefor wherein a turn-off duration, during which a laser beam is turned-off, of a binary signal to be recorded on the optical disk is elongated and an irradiation duration, during which the laser beam is irradiated, of the binary signal is shortened, so that it is possible to avoid influence of thermal diffusion which is caused by irradiating the laser beam corresponding to the irradiation duration on the optical disk and to obtain a more precise reproduced signal in comparison with that obtained by prior arts.
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Makino Masami
Sumi Satoshi
Psitos Aristotelis
Sanyo Electric Co,. Ltd.
Tran Thang V.
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