Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2011-01-04
2011-01-04
Payne, David C (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C375S229000, C375S230000, C375S231000, C375S233000, C375S346000, C375S350000
Reexamination Certificate
active
07864835
ABSTRACT:
A communication system receives a modulated signal that carries encoded communication data. An adaptive filter has a plurality of adaptive filter taps and weighted coefficients and a variable delay circuit operative before the adaptive filter taps for separating the spacing of multipath introduced by adaptive filter and producing a filtered output signal with improved multipath performance. A demodulator and decoder receive the filtered output signal from the adaptive filter and demodulate and decode the signal to obtain the communications data.
REFERENCES:
patent: 5065242 (1991-11-01), Dieterich et al.
patent: 5377226 (1994-12-01), Davis
patent: 5570423 (1996-10-01), Walker et al.
patent: 5777910 (1998-07-01), Lu
patent: 5838740 (1998-11-01), Kallman et al.
patent: 5963592 (1999-10-01), Kim
patent: 6037886 (2000-03-01), Staszewski et al.
patent: 6201843 (2001-03-01), Kingston et al.
patent: 6285412 (2001-09-01), Twitchell
patent: 6563868 (2003-05-01), Zhang et al.
patent: 6859641 (2005-02-01), Collins et al.
patent: 6980609 (2005-12-01), Ahn
patent: 7050491 (2006-05-01), McDonald et al.
patent: 7085240 (2006-08-01), Wu et al.
patent: 7194025 (2007-03-01), Wood et al.
patent: 2003/0035474 (2003-02-01), Gorecki et al.
patent: 2004/0229590 (2004-11-01), Kubo et al.
patent: 2005/0213652 (2005-09-01), Higashino
patent: 2005/0220230 (2005-10-01), Fukuda
patent: 2005/0259728 (2005-11-01), Nieto
patent: 2006/0020650 (2006-01-01), Shen et al.
patent: 2006/0176947 (2006-08-01), Lim
patent: 2007/0058710 (2007-03-01), Chang
Furman William N.
Kellerman Fred C.
Nieto John W.
Padalino Brian C.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Flores Leon
Harris Corporation
Payne David C
LandOfFree
Communications system using adaptive filter and variable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communications system using adaptive filter and variable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications system using adaptive filter and variable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2656866