Tone ordered discrete multitone interleaver

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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C375S222000

Reexamination Certificate

active

07088781

ABSTRACT:
A tone ordered discrete multitone interleaver system and method, including a tone ordered interleaver and deinterleaver, are provided for efficiently communicating data despite noise affecting a Discrete Multitone modulation (DMT) system. The tone ordered discrete multitone interleaver forces interleaving of trellis encoded information by assigning a different number of bits to adjacent tones or adjacent tone pairs.

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G.gen-bis—More Robust Tone Ordering, in the Presence of real AM RFI, Feb. 5-9, 2001.
“Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come” by John A.C. Bingham, Published May 1990 in IEEE Communications Magazine.

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