Optical disc apparatus and light power correcting method

Details Optical disc apparatus and light power correcting method Optical disc apparatus and light power correcting method

2008-11-25

2010-11-23

Chow, Lixi (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047500, C369S116000

Reexamination Certificate

active

07839746

ABSTRACT:
An optical disc apparatus includes: an obtaining unit obtaining a sensitivity coefficient indicating a relation between a light power of a semiconductor laser and a monitor value; a first deriving unit deriving a first monitor value in setting the light power at a peak power; a second deriving unit deriving a second monitor value in setting the light power at an erase power; a converting unit converting the first and the second monitor values into first and second light power values based on the sensitivity coefficient; a first calculating unit calculating a ratio between the first and the second light power values; a second calculating unit calculating a correction coefficient based on a setting value of a ratio between the peak power and the erase power and a calculation value of the ratio between the first and the second light power values; and a correcting unit correcting the light power of the semiconductor laser based on the correction coefficient.

REFERENCES:
patent: 2007/0019529 (2007-01-01), Ho
patent: 2007/0274191 (2007-11-01), Tanoue et al.
patent: 2008/0084805 (2008-04-01), Chen
patent: 2009/0086597 (2009-04-01), Shou et al.
patent: 2004-326841 (2004-11-01), None

Affiliated with

Also associated with

Rating

Optical disc apparatus and light power correcting method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical disc apparatus and light power correcting method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disc apparatus and light power correcting method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4210784