Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal processing for controlling recording light...
Reexamination Certificate
2005-06-30
2008-08-26
Edun, Muhammad N. (Department: 2627)
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal processing for controlling recording light...
C369S116000, C369S047500, C369S059100
Reexamination Certificate
active
07417933
ABSTRACT:
Recording information is disclosed in which an information recording medium is irradiated with a recording energy beam that is power-modulated into at least a record power level and a record-ready power level lower than the record power level. The information is recorded on the recording medium in the form of length and interval of a mark portion. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion.
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Andoo Keikichi
Anzai Yumiko
Hirotsune Akemi
Miyamoto Makoto
Nishida Tetsuya
Edun Muhammad N.
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
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