Optical information reproducing apparatus and optical...

Details Optical information reproducing apparatus and optical... Optical information reproducing apparatus and optical...

2007-03-19

2010-06-01

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044320, C369S053190, C369S112170

Reexamination Certificate

active

07729224

ABSTRACT:
An optical information reproducing apparatus and an optical information reproducing method using the same are provided. The optical information reproducing apparatus includes: a light source; a beam splitter which splits a beam emitted from the light source into a reference beam and a temporary beam; a temporary beam splitter which splits the temporary beam into a pair of assistant beams; an incident optical system which inputs the reference beam and the assistant beams to a recording medium in which optical information is recorded; a reproduction beam detector which detects reproduction beams reproduced in response to the reference beam, sets the position of the reproduction beam having the largest light intensity as a reference position, and sets a signal region on the basis of the reference beam; and an assistant beam detector which compares the light intensity of the assistant beams incident on the signal region with each other and sets an incident angle of the reference beam. Accordingly, it is possible to detect a tilt error and to correct the tilt error at the time of reproducing data from the recording medium.

REFERENCES:
patent: 7116626 (2006-10-01), Woods et al.
patent: 7460447 (2008-12-01), Kogure
patent: 2003/0198158 (2003-10-01), Roh et al.
patent: 2006/0215529 (2006-09-01), Uno et al.
patent: 1544854 (2005-06-01), None
European Search Report for application No. EP07005402 mailed Apr. 28, 2008.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4191395