Method for adapting the receiver demodulation structure according to the transmitter ifft size, in dmt-based adsl modems
CA 2333829 A1 · Owner: Deczky, Andrew · Inventors: Ginesi, Alberto; Deczky, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is proposed to have the IFFT size information exchanged during the initialization of the, modems. For a number of reasons different vendors may decide to generate the transmit, signal (either the U/S or the D/S) through IFFT sizes greater than the ones specified by, the Standard. Letting the receiver know the IFFT size of the transmitter can guarantee, inter-performance between different pairs of modem. The receiver could in fact adapt its, FFT size to match the IFFT size in the transmitter.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2023.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.