Near-end crosstalk noise minimization and power reduction...

Details Near-end crosstalk noise minimization and power reduction... Near-end crosstalk noise minimization and power reduction...

2011-02-03

2011-11-15

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S219000

Reexamination Certificate

active

08059704

ABSTRACT:
To optimize the performance of DSL modems in the same cable bundle, the size and position of the group of subcarriers used for transmission is intelligently selected when the bit rate necessary for making the transmission is less than the total available bandwidth provided by all subcarriers. By intelligently selecting a minimum number of subcarriers for Digital Multi-tone (DMT) signal transmission, a reduction in line driver power consumption is effectuated. Additionally, by intelligently selecting the position of the groups of subcarriers within the total available subcarriers, near-end crosstalk (NEXT) noise within the cable bundle may be minimized.

REFERENCES:
patent: 5838681 (1998-11-01), Bonomi et al.
patent: 5898666 (1999-04-01), Fukuda
patent: 6028867 (2000-02-01), Rawson et al.
patent: 6073179 (2000-06-01), Liu et al.
patent: 6088385 (2000-07-01), Liu
patent: 6167095 (2000-12-01), Furukawa et al.
patent: 6351487 (2002-02-01), Lu et al.
patent: 6754186 (2004-06-01), Bullman
patent: 6778517 (2004-08-01), Lou et al.
patent: 6801964 (2004-10-01), Mahdavi
patent: 6845125 (2005-01-01), Sasaki et al.
patent: 6853647 (2005-02-01), Rawson et al.
patent: 6965657 (2005-11-01), Rezvani et al.
patent: 6985521 (2006-01-01), Rezvani et al.
patent: 7103004 (2006-09-01), Wang
patent: 7126984 (2006-10-01), Wang
patent: 7388945 (2008-06-01), Pythoud
patent: 2001/0055332 (2001-12-01), Sadjadpour et al.
patent: 2002/0032004 (2002-03-01), Widrow
patent: 2002/0041656 (2002-04-01), Shimura et al.
patent: 2002/0168016 (2002-11-01), Wang et al.
patent: 2002/0176368 (2002-11-01), Reddy
patent: 2003/0043894 (2003-03-01), Sestok et al.
patent: 2003/0108095 (2003-06-01), Duvaut et al.
patent: 2003/0112858 (2003-06-01), Wang
patent: 2003/0117963 (2003-06-01), Wang
patent: 2007/0019681 (2007-01-01), Wang
patent: WO-00/52894 (2000-09-01), None
patent: WO-01/20864 (2001-03-01), None
patent: WO-01/61956 (2001-08-01), None
American National Standard for Telecommunications, “Spectrum Management for Loop Transmission Systems,” T1.417-2001, pp. 51-52, date unknown (10 pages).
International Telecommunication Union, Transmission Systems and Media, Proposed Draft ITU-T Recommendation G.992.1 for “Asymmetrical Digital Subscriber Line (ADSL) Transceivers,” pp. 56, 140, 150, date unknown (10 pages).
International Telecommunication Union, Transmission Systems and Media, ITU-T Draft Recommendation G.992.2 for “Splitterless Asymmetric Digital Subscriber Line (ADSL) Transceivers,” dated Feb. 17, 1999 (6 pages).
European Search Report, 02238608.5, dated Nov. 18, 2004 (3 pages).

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