Information recording method and apparatus with suppressed...

Details Information recording method and apparatus with suppressed... Information recording method and apparatus with suppressed...

2005-01-11

2005-01-11

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S116000

Reexamination Certificate

active

06842415

ABSTRACT:
A method for recording information is disclosed in which an information recording medium is irradiated with a recording energy beam power-modulated into at least a record power level and a record-ready power level lower than the record power level. 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. Also, only in the case where the energy beam is modulated by the power lower in power level than the record-ready power level after the last pulse of the energy beam pulse train including at least one pulse for forming a mark portion and the mark portion is followed by a space portion of a predetermined length, the particular radiation energy of low power level is reduced as compared with when the mark portion is followed by a space potion of a different length. The radiation energy is increased and/or decreased.

REFERENCES:
patent: 4894816 (1990-01-01), Sukeda et al.
patent: 5323374 (1994-06-01), Arai et al.
patent: 5457666 (1995-10-01), Toda et al.
patent: 5528564 (1996-06-01), Kryder et al.
patent: 5732061 (1998-03-01), Kirino et al.
patent: 5732062 (1998-03-01), Yokoi et al.
patent: 5740149 (1998-04-01), Iwasaki et al.
patent: 5742566 (1998-04-01), Imai
patent: 5905695 (1999-05-01), Kimura
patent: 6160784 (2000-12-01), Maeda et al.
patent: 6205102 (2001-03-01), Spruit
patent: 3804240 (1988-02-01), None
patent: 802 531 (1997-10-01), None
patent: 851 413 (1998-07-01), None
patent: 62-175948 (1987-08-01), None
patent: 62-259229 (1987-11-01), None
patent: 3-185629 (1991-08-01), None
patent: 05-143993 (1993-06-01), None
patent: 06-084224 (1994-03-01), None
patent: 06-203383 (1994-07-01), None
patent: 06-295440 (1994-10-01), None
patent: 08-180414 (1996-07-01), None
patent: 8-287465 (1996-11-01), None
patent: 09-115141 (1997-05-01), None

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