Optimization of the decision threshold for binary signals

Details Optimization of the decision threshold for binary signals Optimization of the decision threshold for binary signals

2002-09-03

2008-01-15

Louis-Jacques, Jacques (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error count or rate

C714S760000, C714S799000

Reexamination Certificate

active

07320095

ABSTRACT:
A threshold value is set in a decision circuit receiving a transmitted stream of binary symbols from a network link. The decision circuit uses the threshold value for detecting whether a 1 or a 0 is received to produce an output stream having a low bit error rate. Bit errors in the output stream of the detector are detected. The number of errors is counted when a transmitted 0 is detected as a 1 in the output stream. The number of errors is also counted when a transmitted1is detected as a 0 in the output stream. The counted numbers of errors are compared to each other. The threshold value is modified, if necessary, based on the result of the comparing, to e.g. make the probabilities of the two kinds of errors equal to each other. Extra predetermined bits can be inserted and used in determining bit errors.

REFERENCES:
patent: 6877117 (2005-04-01), Childers et al.
patent: 6885828 (2005-04-01), Cornelius
patent: 0240157 (1987-10-01), None
patent: 0240157 (1987-10-01), None
patent: 0966117 (1999-12-01), None
Fang Zhao, George Mathew, B. Farhang-Boroujeny. “Techniques for Minimizing Error Propagation in Decision Feedback Detectors for Recording Channels”, IEEE Transactions on Magnetics, Jan. 2001, vol. 37, Issue I, Part 2. pp. 592-602.
Narayan B. Mandayam, Behnaam Aazhang. “Gradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part II-Adaptive Detection”, IEEE Journal on Selected Areas in Communications, May 1997, vol. 15, Issue 4. pp. 742-750.

Affiliated with

Also associated with

Rating

Optimization of the decision threshold for binary signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimization of the decision threshold for binary signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimization of the decision threshold for binary signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3963980