Optical disc apparatus and optical disc replay method

Details Optical disc apparatus and optical disc replay method Optical disc apparatus and optical disc replay method

2011-08-09

2011-08-09

Giesy, Adam R (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S112230

Reexamination Certificate

active

07995439

ABSTRACT:
When an optical disc apparatus reproduces information from an optical disc, it converges a reading light beam emitted from an LED to substantially collimated light and projects it to the optical disc to cause it to be reflected by reflection surface thereof so as to make it become a reading reflected light beam. Then, the apparatus converges the reading reflected light beam by a mark layer selection lens, detects the reading reflected light beam passing through the target position by a detection region located at the confocal point of the target position and generates a detection signal. Subsequently, the apparatus recognizes the presence or absence of a recording mark based on the detection signal to reproduce the information. Thus, the apparatus can detect the state of the reading reflected light beam observed when it passes the target position and can recognize the presence or absence of a recording mark.

REFERENCES:
patent: 4748610 (1988-05-01), Nakata et al.
patent: 6101157 (2000-08-01), Bradshaw et al.
patent: 6574174 (2003-06-01), Amble et al.
patent: 6963520 (2005-11-01), Park et al.
patent: 2005/0195707 (2005-09-01), Park et al.
patent: 2006/0114794 (2006-06-01), Suzuki et al.
patent: 2008/0049585 (2008-02-01), Shindo
patent: 2008/0130458 (2008-06-01), Shiono et al.
patent: 2008/0170486 (2008-07-01), Sato et al.
patent: 2009/0296542 (2009-12-01), Miyamoto et al.
patent: 58-041447 (1983-03-01), None
patent: 60-170035 (1985-09-01), None
patent: 60-258739 (1985-12-01), None
patent: 62-167628 (1987-07-01), None
patent: 07-021565 (1995-01-01), None
patent: 2001-067714 (2001-03-01), None
patent: 2003-315988 (2003-11-01), None
patent: 2005-235282 (2005-09-01), None
patent: 2006-114168 (2006-04-01), None
patent: 2008-071433 (2008-03-01), None

Affiliated with

Also associated with

Rating

Optical disc apparatus and optical disc replay 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 optical disc replay method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disc apparatus and optical disc replay method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2698445