Patents by Inventor Eric Backus

Eric Backus 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).

  • Publication number: 20080101492
    Abstract: A method for tracking and compensating phase noise in an OFDM communication system, includes: applying to the OFDM communication system a signal comprising a set of pilot tones, each pilot tone comprising a pilot symbol, prerotating the signal applied to the OFDM communication system, constructing for each pilot tone a reference value for the pilot symbol on that pilot tone, said reference value taking into account the distortion the signal has undergone, correlating for each pilot tone comprised in the prerotated signal the reference value with the pilot symbol, yielding a phase offset value for that pilot tone, averaging the various phase offset values of the pilot tones to yield an averaged offset value, indicative of the phase noise, rotating the received symbol according to the averaged offset value, such that the phase noise is compensated for.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Inventors: Jean-Philippe Gregoire, Eric Backus, Dennis O'Brien