Patents by Inventor Charles Nadeau

Charles Nadeau 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).

  • Method and system for wireless data communication
    Patent number: 9479826
    Abstract: A system has a first transmitter for transmitting a first wireless signal within a first frequency. A second transmitter is for transmitting a second wireless signal with overlapping frequency. The first transmitter and the second transmitter are disposed sufficiently proximate to another such that the wireless signals substantially interfere resulting in a combined wireless signal with negative SNR for each of the first wireless signal and the second wireless signal, the negative SNR being a result of at least the other of the first wireless signal and the second wireless signal. A receiver is located for receiving a received wireless signal comprising substantially interfering encoded data signals having negative SNR. The receiver is for selecting from the substantially interfering encoded data signals a signal of interest and for decoding said signal of interest relative to at least the other substantially interfering data signal within the received wireless signal.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 25, 2016
    Assignee: Her Majesty the Queen in Right of Canada as represented by the Minister of industry, through the Communications Research Centre Canada
    Inventors: Yiyan Wu, Bo Rong, Gilles Gagnon, Khalil Salehian, Sébastien Laflèche, Charles Nadeau, Benoit Ledoux, Robert Gagnon, Douglas Prendergast
  • Multilayer decoding using persistent bits
    Patent number: 8824543
    Abstract: The invention relates to a method of iterative multi-layer decoding of a multimedia communication signal, wherein persistent bits from various upper layers of the employed protocol stack are used in error correction decoding at a lower error-correction layer. The method includes saving persistent bits from successfully decoded FEC frames in memory, and using a subset of the saved bits in decoding of future frames. A smart controller is used to analyze frames for the presence and location of persistent bits, for saving thereof in memory, and for inserting saved persistent bits into a next frame at successive decoding iterations thereof.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: September 2, 2014
    Assignee: Her Majesty the Queen in Right of Canada, as represented by the Minister of Industry, through the Communications Research Centre Canada
    Inventors: Yiyan Wu, Bo Rong, Gilles Gagnon, Sébastien Laflèche, Charles Nadeau, Omneya Issa, Hong Liu, Wei Li
  • METHOD AND SYSTEM FOR WIRELESS DATA COMMUNICATION
    Publication number: 20120257643
    Abstract: A system has a first transmitter for transmitting a first wireless signal within a first frequency. A second transmitter is for transmitting a second wireless signal with overlapping frequency. The first transmitter and the second transmitter are disposed sufficiently proximate to another such that the wireless signals substantially interfere resulting in a combined wireless signal with negative SNR for each of the first wireless signal and the second wireless signal, the negative SNR being a result of at least the other of the first wireless signal and the second wireless signal. A receiver is located for receiving a received wireless signal comprising substantially interfering encoded data signals having negative SNR. The receiver is for selecting from the substantially interfering encoded data signals a signal of interest and for decoding said signal of interest relative to at least the other substantially interfering data signal within the received wireless signal.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 11, 2012
    Applicants: the Communications Research Centre of Canada
    Inventors: Yiyan Wu, Bo Rong, Gilles Gagnon, Khalil Salehian, Sébastien Lafléche, Charles Nadeau, Benoit Ledoux, Robert Gagnon, Douglas Prendergast
  • MULTILAYER DECODING USING PERSISTENT BITS
    Publication number: 20110310978
    Abstract: The invention relates to a method of iterative multi-layer decoding of a multimedia communication signal, wherein persistent bits from various upper layers of the employed protocol stack are used in error correction decoding at a lower error-correction layer. The method includes saving persistent bits from successfully decoded FEC frames in memory, and using a subset of the saved bits in decoding of future frames. A smart controller is used to analyze frames for the presence and location of persistent bits, for saving thereof in memory, and for inserting saved persistent bits into a next frame at successive decoding iterations thereof.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Inventors: Yiyan Wu, Bo Rong, Gilles Gagnon, Sébastien Laflèche, Charles Nadeau, Omneya Issa, Hong Liu, Wei Li