Light beam output control apparatus, optical pickup...

Details Light beam output control apparatus, optical pickup... Light beam output control apparatus, optical pickup...

2006-09-19

2006-09-19

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C369S116000, C369S122000, C369S124110, C250S201500

Reexamination Certificate

active

07109462

ABSTRACT:
An optical pickup apparatus comprises a semiconductor laser output controller for emitting laser beam, a photodetector for detecting the emitted laser beam, a sampling processor for performing a sampling process, an averaging processor for performing an averaging process, a pulse current generator for generating erase current pulses, write current pulses, and read current pulses, and a controller200for controlling the above components. The apparatus adds averaged values and sampled values and controls the semiconductor laser output controller based on the result of the addition and on the current pulses.

REFERENCES:
patent: 5126994 (1992-06-01), Ogawa et al.
patent: 5956313 (1999-09-01), Maegawa et al.
patent: 6147957 (2000-11-01), Nagara et al.
patent: 2002/0018419 (2002-02-01), Watabe
patent: 2004/0079864 (2004-04-01), Suzuki
patent: 1 207 525 (2002-05-01), None
patent: 1 258 956 (2002-11-01), None
patent: 1 213 713 (2002-12-01), None
patent: 1 437 718 (2004-07-01), None
patent: 11-339398 (1999-12-01), None
patent: WO 02/097804 (2002-12-01), None
patent: WO 03/001519 (2003-01-01), None

Affiliated with

Also associated with

Rating

Light beam output control apparatus, optical pickup... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light beam output control apparatus, optical pickup..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light beam output control apparatus, optical pickup... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3570276