Patents by Inventor Krishnamurthy Vlswanathan

Krishnamurthy Vlswanathan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for iterative denoising and error correction decoding
    Patent number: 7971131
    Abstract: Systems and methods for iterative denoising and error correction decoding are presented. In an embodiment, a system iteratively processes a noisy signal formed by a noise-introducing channel in response to an error correction coded input signal. A denoiser generates reliability information for symbols in the input signal. The reliability information is generated by forming a product of received reliability information and an estimate of the distribution of metasymbols in the input signal, each metasymbol includes context symbols and a corresponding input symbol, and summing over values for the context symbols corresponding to the particular input symbol. An error correction decoder performs error correction decoding using the generated reliability information.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: June 28, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Erik Ordentilch, Gadlel Seroussi, Krishnamurthy Vlswanathan, Sergio Verdu, Itschak (Tsachy) Weissman, Marcelo Weinberger