Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1988-02-05
1990-01-16
Stephan, Steven L.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369116, 369124, G01D 1514, G11B 2110, G11B 700
Patent
active
048948160
ABSTRACT:
An optical information recording apparatus, in which marks having a desired shape are recorded at desired positions, independently of the patterns of recording pulses, while canceling influences of the heat conduction from the mark, which has been directly previously recorded, by controlling the energy at the front end portion of laser light pulses, depending on the interval from the directly preceding pulse, when recording medium is irradiated with the laser light pulses corresponding to recording pulses so as to record information.
REFERENCES:
patent: 4646103 (1987-02-01), Sugiyama et al.
patent: 4648085 (1987-03-01), Shimonou
patent: 4680594 (1987-07-01), Bracht
Ojima Masahiro
Saito Atsushi
Sukeda Hirofumi
Hitachi , Ltd.
Stephan Steven L.
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