Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2011-02-08
2011-02-08
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C708S323000
Reexamination Certificate
active
07885325
ABSTRACT:
A method of synchronizing a feedforward filter (46) that receives a signal resulting from the transmission of a series of symbols through a channel, wherein the series of symbols includes a predetermined sequence of symbols includes the step of developing a plurality of samples from the received symbols (60), wherein a sequence of samples corresponds to the predetermined sequence of symbols. The method further includes the steps of estimating a channel impulse response from the plurality of samples, calculating a characteristic of the channel impulse response, and synchronizing (54) the feedforward filter in accordance with the estimated channel impulse response.
REFERENCES:
patent: 4871974 (1989-10-01), Davis et al.
patent: 4926499 (1990-05-01), Kobayashi et al.
patent: 5233634 (1993-08-01), Vaisanen
patent: 5282225 (1994-01-01), Nikias et al.
patent: 5537419 (1996-07-01), Parr et al.
patent: 5550596 (1996-08-01), Strolle et al.
patent: 5642382 (1997-06-01), Juan
patent: 5675612 (1997-10-01), Solve et al.
patent: 5706057 (1998-01-01), Strolle et al.
patent: 5796786 (1998-08-01), Lee
patent: 5805242 (1998-09-01), Strolle et al.
patent: 5832045 (1998-11-01), Barber
patent: 5835532 (1998-11-01), Strolle et al.
patent: 5841484 (1998-11-01), Hulyalkar et al.
patent: 5852630 (1998-12-01), Langberg et al.
patent: 5894334 (1999-04-01), Strolle et al.
patent: 5903610 (1999-05-01), Sköld et al.
patent: 5940450 (1999-08-01), Koslov et al.
patent: 5991349 (1999-11-01), Chen
patent: 6133965 (2000-10-01), Dobrovolny
patent: 6147555 (2000-11-01), Posner et al.
patent: 6175279 (2001-01-01), Ciccarelli et al.
patent: 6219379 (2001-04-01), Ghosh
patent: 6259743 (2001-07-01), Garth
patent: 6313698 (2001-11-01), Zhang et al.
patent: 6313885 (2001-11-01), Patel et al.
patent: 6314148 (2001-11-01), Fulghum
patent: 6356598 (2002-03-01), Wang
patent: 6411659 (2002-06-01), Liu et al.
patent: 6421379 (2002-07-01), Vannatta et al.
patent: 6434205 (2002-08-01), Taura et al.
patent: 6438164 (2002-08-01), Tan et al.
patent: 6522243 (2003-02-01), Saulnier et al.
patent: 6650699 (2003-11-01), Tierno
patent: 6671314 (2003-12-01), Abe et al.
patent: 6671342 (2003-12-01), Lin et al.
patent: 6734920 (2004-05-01), Ghosh et al.
patent: 6771719 (2004-08-01), Koyama et al.
patent: 6775334 (2004-08-01), Liu et al.
patent: 6823489 (2004-11-01), Wittig et al.
patent: 6842495 (2005-01-01), Jaffe et al.
patent: 7313182 (2007-12-01), Fimoff et al.
patent: 2002/0141483 (2002-10-01), Doetsch et al.
patent: 2002/0150185 (2002-10-01), Meehan et al.
patent: 2002/0172275 (2002-11-01), Birru
patent: 2002/0186762 (2002-12-01), Xia et al.
patent: 2003/0058962 (2003-03-01), Baldwin
patent: 2003/0058967 (2003-03-01), Lin et al.
patent: 2003/0161421 (2003-08-01), Schmidt et al.
patent: 2003/0212947 (2003-11-01), Schenk et al.
patent: 2003/0223517 (2003-12-01), Fimoff et al.
patent: 2004/0077324 (2004-04-01), Wieck
patent: 2004/0151236 (2004-08-01), Lilleberg et al.
International Search Report and Written Opinion in PCT/US05/28907, both dated Jan. 30, 2006.
International Preliminary Report on Patentability in PCT/US05/28907 dated Feb. 22, 2007.
“ATSC Digital Television Standard”, ATSC Doc. A/53, Sep. 16, 1995.
“An Advanced Digital Television Broadcasting System”, Zhang et al., Supplement to Proceedings, 7thInt. Symp. On Broad. Tech. Aug. 25, 2001, 13 pages.
“Results of the Laboratory Evaluation of an 8MHz ADTB-T Television System for Terrestrial Broadcasting”, Communications Research Centre Canada, Jan. 15, 2003, 19 pages.
Citta Richard W.
Lopresto Scott M.
Yang Xiaojun
DLA Piper (LLP) US
Ghebretinsae Temesghen
Trident Microsystems (Far East) Ltd.
LandOfFree
Apparatus for and method of controlling a feedforward filter... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for and method of controlling a feedforward filter..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for and method of controlling a feedforward filter... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2631466