Detection in the presence of media noise

Details Detection in the presence of media noise Detection in the presence of media noise

2006-12-26

2006-12-26

Lamarre, Guy (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S794000, C375S341000

Reexamination Certificate

active

07155660

ABSTRACT:
A signal detector to detect data in an input signal. The signal detector includes a finite impulse response (FIR) filter to equalize the data to a first target length. A Viterbi-like detector is matched to a primary target and generates a most likely path corresponding to the data in the input signal. A linear post-processor determines at least one most likely error event in the most likely path and generates revised paths based on the at least one most likely error event. A media noise processor operates on the data with a secondary target that is different than the primary target. The media noise processor computes path metrics corresponding to each of the revised paths as a function of a non-linear noise model and selects one of the revised paths based on the path metrics.

REFERENCES:
patent: 5521945 (1996-05-01), Knudson
patent: 5588011 (1996-12-01), Riggle
patent: 5606464 (1997-02-01), Agazzi et al.
patent: 5689532 (1997-11-01), Fitzpatrick
patent: 5889823 (1999-03-01), Agazzi et al.
patent: 6185175 (2001-02-01), Zook
patent: 6201839 (2001-03-01), Kavcic et al.
patent: 6246723 (2001-06-01), Bliss et al.
patent: 6317419 (2001-11-01), Olafsson et al.
patent: 6347391 (2002-02-01), Uesugi et al.
patent: 6438180 (2002-08-01), Kavcic et al.
patent: 6735724 (2004-05-01), McClellan
Aleksandar Kavcic/Jose F. Moura, “The Viterbi Algorithm and Markov Noise Memory”, IEEE Transactions on Information Theory, vol. 46, No. 1, Jan. 2000, pp. 291-301.
Runsheng He/Nersi Nazari, “An Analytical Approach to Performance Evaluation of Partial Response Systems in the Presence of Signal-Dependent Medium Noise”, 5 pages.

Affiliated with

Also associated with

Rating

Detection in the presence of media noise does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection in the presence of media noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection in the presence of media noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3716723