Receiver with selection between a decision feedback equalizer and a linear equalizer
CA 2487358 A1 · Owner: Qualcomm Incorporated · Inventors: Fernandez-Corbaton, Ivan Jesus; Jayaraman, Srikant; Smee, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Techniques for selecting either a DFE or an LE for use to equalize a received signal, and for quickly and efficiently determining the coefficients for the selected equalizer. In an embodiment, a method is provided whereby the DFE is initially adapted based on the received signal and a particular adaptive algorithm (e.g. the LMS algorithm) for an initial time period. A quality metric is then determined for an output of the DFE. The DFE is selected for use if the quality metric is better than a threshold value and the LE is , selected otherwise. If the LE is selected then the initial values for the , coefficients of the LE may be derived based on the coefficients of a feedforward filter …
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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 June 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.