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  • Patent number: 8189722
    Abstract: Various embodiments of the present invention relate to a discrete denoiser that replaces symbols in a received, noisy signal with replacement symbols in order to produce a recovered signal less distorted with respect to an originally transmitted, clean signal than the received, noisy signal. Certain, initially developed discrete denoisers employ an analysis of the number of occurrences of metasymbols within the received, noisy signal in order to select symbols for replacement, and to select the replacement symbols for the symbols that are replaced. Denoisers that represent examples of the present invention use blended counts that are combinations of the occurrences of metasymbol families within a noisy signal to determine the symbols to be replaced and the replacement symbols corresponding to them.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: May 29, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Erik Ordentlich, Gadiel Seroussi, Sergio VerdĂș, Marcelo Weinberger, Itschak Weissman