Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2006-02-28
2010-12-07
Meier, Stephen D (Department: 2853)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S236000, C369S044250
Reexamination Certificate
active
07847812
ABSTRACT:
A label pattern can be created on a label side of an optical disc under well focus control. An optical disc is first loaded in an optical disc drive with the label side thereof facing to an optical head of the optical disc drive. Then, the optical head is actuated along a focusing direction. Meanwhile, a light intensity addition signal is generated in response to optical signals reflected from the optical disc and received by the optical head. A closed-loop control operation of the optical head is performed according to the light intensity addition signal after the light intensity addition signal up-crosses a threshold. Then, a label pattern can be defined on the label side of the optical disc with the closed-loop control operation.
REFERENCES:
patent: 5914928 (1999-06-01), Takahashi
patent: 2003/0002404 (2003-01-01), Maekawa
patent: 2003/0035352 (2003-02-01), Worthington
patent: 2003/0161230 (2003-08-01), Tsai
patent: 2004/0059987 (2004-03-01), Hung et al.
patent: 2004/0141385 (2004-07-01), Pettigrew et al.
patent: 2004/0141445 (2004-07-01), Hanks
Liu Chi-Yuan
Wei Tao-Yen
Al-Hashimi Sarah
Kirton & McConkie
Lite-On It Corp.
Meier Stephen D
Witt Evan R.
LandOfFree
Focusing control method for reading/writing optical disc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Focusing control method for reading/writing optical disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focusing control method for reading/writing optical disc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4232830