Decision feedback equalizer

Details Decision feedback equalizer Decision feedback equalizer

2006-02-07

2006-02-07

Liu, Shuwang (Department: 2634)

Pulse or digital communications

Equalizers

Automatic

C375S232000, C375S235000, C348S558000, C348S726000, C708S323000

Reexamination Certificate

active

06996169

ABSTRACT:
A decision feed back equalizer provides two feedback routines for one symbol-preceding decided data. The signal space is separated into decidable areas and uncertainty areas. Within each of decidable area the distance between any point and the signal point is small. Within each uncertainty area the distance between any point and the signal point is large. If the symbol-preceding equalized signal is in a decidable area, the piece of decided data is fed back, as it is presumed to be correct. If the symbol-preceding equalized signal exists in an uncertainty area, the piece of decided data is not fed back, as it is presumed to be in error. Here the one piece data is selected from all the predicted symbol-preceding decided data so that the instant equalized data is now in the decidable area. This piece of decided data is now fed back.

REFERENCES:
patent: 5267265 (1993-11-01), Mizoguchi
patent: 5541956 (1996-07-01), Ueda
patent: 6680971 (2004-01-01), Tazebay et al.
patent: 2003/0206604 (2003-11-01), Lai

Affiliated with

Also associated with

Rating

Decision feedback equalizer does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3711649