Multistandard discrete multi-tone (DMT) digital subscriber...

Details Multistandard discrete multi-tone (DMT) digital subscriber... Multistandard discrete multi-tone (DMT) digital subscriber...

2006-03-07

2006-03-07

Burd, Kevin (Department: 2631)

Pulse or digital communications

Transceivers

Modems

C375S219000, C370S203000, C370S206000, C370S210000

Reexamination Certificate

active

07010027

ABSTRACT:
A digital subscriber line transmission system using QAM modulation on several equally spaced discrete tones, uses, at a high transmission rate, N=2048/p or 4096/p tones spaced by 4.3125p KHz, where p is a power of 2.

REFERENCES:
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patent: 5673290 (1997-09-01), Cioffi
patent: 5680394 (1997-10-01), Bingham et al.
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patent: 5917809 (1999-06-01), Ribner et al.
patent: 6009122 (1999-12-01), Chow
patent: 6014412 (2000-01-01), Wiese et al.
Bidet, “A fast single-chip implementation of 8192 complex point FFT”, Mar. 1995, IEEE Journal of Solid-State Circuits, vol. 30, N. 3, Page(s): 300-305.
International Search Report from application No. PCT/EP99/09475.

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