Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-03-07
2006-03-07
Bayard, Emmanuel (Department: 2634)
Pulse or digital communications
Receivers
Interference or noise reduction
C370S342000
Reexamination Certificate
active
07010070
ABSTRACT:
A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a Cluster Multipath Interference Suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.
REFERENCES:
patent: 4141072 (1979-02-01), Perreault
patent: 5432754 (1995-07-01), Brady et al.
patent: 6563868 (2003-05-01), Zhang et al.
patent: 6700919 (2004-03-01), Papasakellariou
patent: 2002/0041637 (2002-04-01), Smart et al.
patent: 2003/0026201 (2003-02-01), Arnesen
patent: 2003/0147455 (2003-08-01), Simoni et al.
patent: 2003/0152174 (2003-08-01), Burke
patent: 2003/0223516 (2003-12-01), Zhang et al.
patent: 2004/0156423 (2004-08-01), Li et al.
patent: 2004/0184473 (2004-09-01), Tavli et al.
patent: 2004/0223480 (2004-11-01), Nguyen et al.
patent: 2005/0025267 (2005-02-01), Reznik et al.
Li Bin
Reznik Alexander
Yang Rui
Zeira Ariela
Bayard Emmanuel
InterDigital Technology Corporation
Volpe and Koenig P.C.
Williams Lawrence
LandOfFree
High performance wireless receiver with cluster multipath... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High performance wireless receiver with cluster multipath..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High performance wireless receiver with cluster multipath... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3603602