Methods for performing channel diagnostics

Details Methods for performing channel diagnostics Methods for performing channel diagnostics

2007-07-03

2007-07-03

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C370S242000

Reexamination Certificate

active

10641011

ABSTRACT:
A method is used to determine information about a communication channel using an adaptive filter coupled to the channel. The adaptive filter includes adaptive filter coefficients. The filter coefficients are compared to filter coefficient thresholds. A determination is made whether one of a communication link and a channel fault exists. If a channel fault exists, a determination is made whether, i) a cable open condition exists in the channel, and ii) a cable short condition exists in the channel. An indication is made whether the channel is one of linked, open, and shorted.

REFERENCES:
patent: 3962637 (1976-06-01), Motley et al.
patent: 4539675 (1985-09-01), Fisher
patent: 4547633 (1985-10-01), Szechenyi
patent: 4677647 (1987-06-01), Aoyagi
patent: 4789994 (1988-12-01), Randall et al.
patent: 4859951 (1989-08-01), Cole et al.
patent: 5099436 (1992-03-01), McCown et al.
patent: 5155742 (1992-10-01), Ariyavisitakul et al.
patent: 5166954 (1992-11-01), Grizmala et al.
patent: 5210774 (1993-05-01), Abbiate et al.
patent: 5351247 (1994-09-01), Dow et al.
patent: 5448369 (1995-09-01), Lee et al.
patent: 5481195 (1996-01-01), Meyer
patent: 5481564 (1996-01-01), Kakuishi et al.
patent: 5661668 (1997-08-01), Yemini et al.
patent: 5751766 (1998-05-01), Kletsky et al.
patent: 5872815 (1999-02-01), Strolle et al.
patent: 6055119 (2000-04-01), Lee
patent: 6061393 (2000-05-01), Tsui et al.
patent: 6160673 (2000-12-01), Izumi et al.
patent: 6226356 (2001-05-01), Brown
patent: 6233274 (2001-05-01), Tsui et al.
patent: 6278730 (2001-08-01), Tsui et al.
patent: 6385237 (2002-05-01), Tsui et al.
patent: 6385561 (2002-05-01), Soraghan et al.
patent: 6414990 (2002-07-01), Jonsson et al.
patent: 6434233 (2002-08-01), Bjarnason et al.
patent: 6448781 (2002-09-01), Frank et al.
patent: 6529549 (2003-03-01), Norrell et al.
patent: 6534996 (2003-03-01), Amrany et al.
patent: 6590930 (2003-07-01), Greiss
patent: 6650699 (2003-11-01), Tierno
patent: 6650768 (2003-11-01), Evans et al.
patent: 6661761 (2003-12-01), Hayami et al.
patent: 6674518 (2004-01-01), Asher et al.
patent: 6697768 (2004-02-01), Jones et al.
patent: 6744854 (2004-06-01), Berrier et al.
patent: 6833875 (2004-12-01), Yang et al.
patent: 6856655 (2005-02-01), Garcia
patent: 6901243 (2005-05-01), Jayaraman et al.
patent: 6934655 (2005-08-01), Jones et al.
patent: 6985521 (2006-01-01), Rezvani et al.
patent: 2002/0114383 (2002-08-01), Belge et al.
patent: 2002/0161539 (2002-10-01), Jones et al.
patent: 2002/0161542 (2002-10-01), Jones et al.
patent: 2002/0168001 (2002-11-01), Ramsey
patent: 2002/0169585 (2002-11-01), Jones et al.
patent: 2003/0018981 (2003-01-01), Ramsey
patent: 2003/0152180 (2003-08-01), Schenk
patent: 2003/0210752 (2003-11-01), Krupka
patent: 2004/0013178 (2004-01-01), Bui et al.
patent: 2004/0013208 (2004-01-01), Bui et al.
patent: 2004/0019443 (2004-01-01), Jones et al.
patent: 2004/0022195 (2004-02-01), Chen
patent: 2004/0044489 (2004-03-01), Jones et al.
patent: 2006/0007991 (2006-01-01), Wang et al.
patent: 2006/0007992 (2006-01-01), Wang et al.
patent: 2006/0007993 (2006-01-01), Wang et al.
patent: 2006/0067239 (2006-03-01), Olinski
patent: 0 268 391 (1988-05-01), None
patent: WO 01/030013 (2002-08-01), None
Maier, F.A. and Seeger, H., “Automation of optical time-domain reflectometry measurements.”Hewlett-Packard Journal, v46, n1, p. 57(6), 4-Page Reprint, (Feb. 1995).
Navaneethan, S. et al., “Automatic Fault Location for Underground Low Voltage Distribution Networks,”IEEE Transactions On Power Delivery, vol. 16, No. 2, pp. 346-351 (Apr. 2001).
Bellanger, M.G.,Adaptive Digital Filters and Digital Analysis, 1987, pp. 313-314.
European Search Report for European Patent Appl. No. 03016209.3, 3 pages, dated Sep. 27, 2005.

Affiliated with

Also associated with

Rating

Methods for performing channel diagnostics does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3768228