(19)
(11) EP 1 415 426 A2

(12)

(88) Date of publication A3:
21.08.2003

(43) Date of publication:
06.05.2004 Bulletin 2004/19

(21) Application number: 02756875.7

(22) Date of filing: 31.07.2002
(51) International Patent Classification (IPC)7H04L 1/00
(86) International application number:
PCT/US2002/024401
(87) International publication number:
WO 2003/013048 (13.02.2003 Gazette 2003/07)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.07.2001 US 308587 P
18.01.2002 US 50129
18.01.2002 US 50128
18.01.2002 US 50532
18.01.2002 US 50533
18.01.2002 US 50529

(71) Applicant: GlobeSpan Virata, Inc.
Red Bank, NJ 07701 (US)

(72) Inventors:
  • GRAZIANO, Michael, J.
    Sunnyvale, CA 94086 (US)
  • CHEN, Tsung-Liang
    Santa Clara, CA 95051 (US)
  • CHARI, Sujai
    Redwood City, CA 94065 (US)
  • LUK-PAT, Gerard, T.
    Sunnyvale, CA 94086 (US)
  • LEUNG, Eric, Tsing-Ho
    San Jose, CA 95131 (US)

(74) Representative: Plougmann & Vingtoft A/S 
Sundkrogsgade 9,P.O. Box 831
2100 Copenhagen O
2100 Copenhagen O (DK)

   


(54) POWER BACKOFF METHOD AND SYSTEM FOR G.SHDSL MODEM USING FREQUENCY DOMAIN GEOMETRIC SIGNAL TO NOISE RATIO