Multiplex communications – Crosstalk suppression
Reexamination Certificate
2008-07-29
2008-07-29
Pham, Chi H. (Department: 2616)
Multiplex communications
Crosstalk suppression
C370S286000, C370S463000, C379S406060, C375S222000
Reexamination Certificate
active
10342059
ABSTRACT:
A method of communicating data across a channel that experiences near-end cross talk (NEXT) interference and far-end cross talk (FEXT) interference in alternate intervals. In one embodiment, the method comprises: a) determining NF, the number of bits per symbol usable in a FEXT-only mode of operation; b) determining NS, a number of bits per symbol usable in a single mode of operation; c) determining whether the FEXT-only mode or the single mode provides a higher data rate; and d) configuring a modem to transmit using the mode having a higher data rate. The FEXT-only mode may be determined to have a higher data rate when 126NF>340NS.
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Series G: Transmission Systems And Media, Digital Systems And Networks, ITU-T, G.992.1, International Telecommunication Union, Jun. 1999 (64 p.).
Kratochwil Konrad W.
Melsa Peter J.
Zogakis Thomas N.
Brady W. James
Hoang Thai D.
Pham Chi H.
Shaw Steven A.
Telecky , Jr. Frederick J.
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