Light source drive, optical information recording apparatus,...

Details Light source drive, optical information recording apparatus,... Light source drive, optical information recording apparatus,...

2005-10-11

2005-10-11

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047500, C369S053100, C369S116000

Reexamination Certificate

active

06954415

ABSTRACT:
A light source drive which modulates a light source so as to cause the same to emit a light, includes: a superposition current generation part which generates a superposition current approximately corresponding to a charging/discharging current needed for a capacitance occurring in parallel to the light source for a predetermined time period near at least one of a rising-up part and a decaying-down part of a waveform of a drive current for the light source; and an addition/subtraction part which adds to or subtracts from the drive current the superposition current generated by the superposition current generation part.

REFERENCES:
patent: 4894816 (1990-01-01), Sukeda et al.
patent: 5036519 (1991-07-01), Ema et al.
patent: 5050177 (1991-09-01), Ema
patent: 5138623 (1992-08-01), Ema et al.
patent: 5237579 (1993-08-01), Ema et al.
patent: 5258780 (1993-11-01), Ema et al.
patent: 5325160 (1994-06-01), Imakawa et al.
patent: 5732061 (1998-03-01), Kirino et al.
patent: 5784091 (1998-07-01), Ema et al.
patent: 5790482 (1998-08-01), Saga et al.
patent: 5946334 (1999-08-01), Ema et al.
patent: 6118798 (2000-09-01), Ema et al.
patent: 6442183 (2002-08-01), Ema
patent: 6496459 (2002-12-01), Ueki
patent: 6498617 (2002-12-01), Ishida et al.
patent: 6556523 (2003-04-01), Masui
patent: 6600712 (2003-07-01), Masui et al.
patent: 2002/0051137 (2002-05-01), Ema et al.
patent: 2002/0130944 (2002-09-01), Ema et al.
patent: 2002/0158965 (2002-10-01), Ema
patent: 2002/0196717 (2002-12-01), Masui et al.
patent: 2003/0025785 (2003-02-01), Nihei et al.
patent: 2003/0035451 (2003-02-01), Ishida et al.
patent: 2003/0112732 (2003-06-01), Masui et al.
patent: 8-287465 (1996-11-01), None
patent: 10-308026 (1998-11-01), None

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