Pulse or digital communications – Transceivers – Modems
Reexamination Certificate
2005-03-08
2005-03-08
Chin, Stephen (Department: 2634)
Pulse or digital communications
Transceivers
Modems
C333S018000
Reexamination Certificate
active
06865221
ABSTRACT:
Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available modem data. In particular, the loop length, the number of bridge taps and the length of bridged taps can be estimated by comparing a measured frequency domain channel impulse response of the transmission line to a model of a loop that is comprised of multiple sections and multiple bridge taps.
REFERENCES:
patent: 5128619 (1992-07-01), Bjork et al.
patent: 5864602 (1999-01-01), Needle
patent: 6512789 (2003-01-01), Mirfakhraei
patent: 6650697 (2003-11-01), Tate et al.
patent: 20020041657 (2002-04-01), Ulanskas et al.
patent: 20020090060 (2002-07-01), Rudinsky et al.
patent: 20030156685 (2003-08-01), Erving et al.
patent: 20030198217 (2003-10-01), Redfern
patent: 20030231023 (2003-12-01), Belge et al.
patent: 1041731 (2000-10-01), None
patent: 2 303 032 (1997-02-01), None
patent: WO 9701900 (1997-01-01), None
patent: WO 9926375 (1999-05-01), None
patent: WO 0064130 (2000-10-01), None
patent: WO 0101158 (2001-01-01), None
patent: WO 0152439 (2001-07-01), None
patent: WO 0213405 (2002-02-01), None
Lewis L. et al.: “Extending Trouble Ticket Systems To Fault Diagnostics”IEEE Network, Nov. 1993, pp. 44-51, XP 000575228.
Related U.S. patent application Ser. No. 09/755,173.
Related U.S. patent application Ser. No. 09/925,509.
Patrick Boets et al.: “The Modelling Aspect Of Transmission Line Networks” Proceedings Of The Instrumentation And Measurement Technology Conference, US, New York, IEEE, May 12, 1992, pp. 137-141, XP 000343913.
International Search Report for PCT/US01/00420 dated May 28, 2001; 4 pages.
Rizzi, P. A., Microwave Engineering, Appendix C “Transmission Matrices”, Prentice-Hall, Englewood Cliffs, N.J., 1988, pp. 534-540.
Marcos Tzannes “Draft New Recommendation G.996.1: Test Procedures For Digital Subscriber Line (DSL) Transceivers -For Approval”, Mar. 1999, 2 pages.
Ranier Storn et al. “Differential Evolution -A Simple And Efficient Adaptive Scheme For Global Optimization Over Continuous Spaces”, Mar. 1995, 12 pages.
Aware Inc.
Chin Stephen
Miles & Stockbridge P.C.
Vartanian Harry
Vick Jason H.
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