Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2011-06-07
2011-06-07
Tran, Khanh C (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
Reexamination Certificate
active
07957463
ABSTRACT:
An adaptive frequency equalization system providing an equalizer that has programmable taps that adjusts magnitude and phase of symbol information of a received signal and that provides equalized symbol information. The system includes a hard decision circuit that selects ideal symbol values using the equalized symbol information. A frequency response circuit determines frequency response update values using the ideal symbol values and the received signal. An adjust circuit updates stored frequency response information using the frequency response update values, and also updates the programmable taps of the equalizer using the stored frequency response information.
REFERENCES:
patent: 5111481 (1992-05-01), Chen et al.
patent: 5241545 (1993-08-01), Kazecki et al.
patent: 5392315 (1995-02-01), Laud
patent: 5710792 (1998-01-01), Fukawa et al.
patent: 6011814 (2000-01-01), Martinez et al.
patent: 6034993 (2000-03-01), Norrell et al.
patent: 6038251 (2000-03-01), Chen
patent: 6055268 (2000-04-01), Timm et al.
patent: 6535552 (2003-03-01), Pessoa
patent: 6542540 (2003-04-01), Leung et al.
patent: 6810076 (2004-10-01), Tang et al.
patent: 6947480 (2005-09-01), Beale et al.
patent: 6973296 (2005-12-01), Webster et al.
patent: 7006565 (2006-02-01), Endres et al.
patent: 7016651 (2006-03-01), Narasimhan
patent: 7027500 (2006-04-01), Casas et al.
patent: 7054396 (2006-05-01), Shan
patent: 7161987 (2007-01-01), Webster et al.
patent: 7218691 (2007-05-01), Narasimhan
patent: 7724639 (2010-05-01), Porat et al.
patent: 2001/0033615 (2001-10-01), Kokuryo et al.
patent: 2001/0040921 (2001-11-01), Guinea et al.
patent: 2004/0001541 (2004-01-01), Haghighat
patent: 2004/0022327 (2004-02-01), Samueli et al.
patent: 2004/0022328 (2004-02-01), Laamanen et al.
patent: 2004/0125871 (2004-07-01), Kim et al.
patent: 2004/0165674 (2004-08-01), Huang
patent: 2004/0190661 (2004-09-01), Vrazel
patent: 2005/0047500 (2005-03-01), Gupta et al.
patent: 2005/0152460 (2005-07-01), Yoshimi et al.
Provisional Application No. 60/432,732, filed on Dec. 12, 2002.
Halford Steven D.
Shearer, III Daniel D.
Webster Mark A.
Yeh Alex C.
Tran Khanh C
Xocyst Transfer AG L.L.C.
LandOfFree
Adaptive frequency 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 Adaptive frequency equalizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive frequency equalizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2666536