Optical recording, producing apparatus, and method with...

Details Optical recording, producing apparatus, and method with... Optical recording, producing apparatus, and method with...

2007-03-13

2007-03-13

Dinh, Tan (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C372S038020

Reexamination Certificate

active

10169734

ABSTRACT:
The present invention proposes a method of controlling the laser power of a semiconductor laser that, in this method of controlling the laser power of a semiconductor laser by applying a power source voltage to between the collector and emitter of an output transistor and a serial circuit of the output transistor and a semiconductor laser, enables decreasing the power consumption of the output transistor. The present invention is arranged to apply a variable power source voltage Vcc to a serial circuit of an output transistor (Qb) and a semiconductor laser (SL) and thereby control the variable power source voltage Vcc such that a difference between the variable power source voltage Vcc and the peak hold voltage of an operating voltage of the semiconductor laser (SL) becomes substantially constant.

REFERENCES:
patent: 5848044 (1998-12-01), Taguchi et al.
patent: 5878015 (1999-03-01), Schell et al.
patent: 6011768 (2000-01-01), Taguchi
patent: 6031855 (2000-02-01), Watanabe
patent: 6111901 (2000-08-01), Taguchi et al.
patent: 6118798 (2000-09-01), Ema et al.
patent: 6320890 (2001-11-01), Taguchi
patent: 6339579 (2002-01-01), Kamioka et al.
patent: 6345062 (2002-02-01), Taguchi et al.
patent: 6414932 (2002-07-01), Kaku et al.
patent: 6442118 (2002-08-01), Hoshino et al.
patent: 6483791 (2002-11-01), Asada et al.
patent: 6487154 (2002-11-01), Kurebayashi et al.
patent: 6552987 (2003-04-01), Asada et al.
patent: 6810050 (2004-10-01), Nihei et al.
patent: 6-275901 (1994-09-01), None
patent: 6-334247 (1994-12-01), None
patent: 10-012976 (1998-01-01), None
patent: 11-213426 (1999-08-01), None
patent: 2000-244052 (2000-09-01), None

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