Information recording and reproducing apparatus

Details Information recording and reproducing apparatus Information recording and reproducing apparatus

2007-01-30

2007-01-30

Wellington, Andrea (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047510, C369S053360, C369S059110

Reexamination Certificate

active

10442530

ABSTRACT:
An optical information recording and reproducing apparatus that determines the quality of recorded information through a beta value from information on the amplitude of a reproduced signal and if the beta value is outside the permissible range, outputs information on error to a host computer. Immediately after the information is recorded the information is reproduced first and second kinds of information including information on the amplitude of the reproduced signal and performance information or error information obtained from a binarized signal of that reproduced signal, respectively are used to determine the quality of the reproduced signal. Recording power condition is changed based on the first kind of information and a recording pulse width condition or reproduction condition is changed based on the second kind of information to ensure the reliability of the information recorded.

REFERENCES:
patent: 5414451 (1995-05-01), Sugiyama et al.
patent: 6646968 (2003-11-01), Miyaoka
patent: 6807134 (2004-10-01), Nakajima et al.
patent: 2002/0141308 (2002-10-01), Matsumoto
patent: 2004/0165508 (2004-08-01), Gushima et al.
patent: 09-161272 (1997-06-01), None
patent: 2002-304732 (2002-10-01), None
Translation of JP 2002-304732.
Translation of JP 9-161272.

Affiliated with

Also associated with

Rating

Information recording and reproducing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information recording and reproducing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information recording and reproducing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3736057