Patents by Inventor Fco. Rodrigo P. Cavalcanti

Fco. Rodrigo P. Cavalcanti 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).

  • Tensor-based receiver for separating component signals in a composite signal
    Patent number: 8369468
    Abstract: A receiver separates multiple component signals carried in a composite signal that have been spread over time and frequency. Multiple diversity branches receive the composite signal. A tensor generation circuit arranges samples of that signal along time, frequency, and diversity dimensions to obtain a composite signal tensor. A set of cascaded least squares estimators then separates the component signals by fitting a constrained tensor model of the composite signal to the composite signal tensor in an alternating least squares estimation process, alternating during any given iteration of the process between fitting different unfolded representations of the constrained tensor model to corresponding unfolded representations of the composite signal tensor.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: February 5, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Robert Baldemair, Fco. Rodrigo P. Cavalcanti, André L. F. de Almeida, Sorour Falahati
  • Tensor-Based Receiver for Separating Component Signals in a Composite Signal
    Publication number: 20110128997
    Abstract: A receiver separates multiple component signals carried in a composite signal that have been spread over time and frequency. Multiple diversity branches receive the composite signal. A tensor generation circuit arranges samples of that signal along time, frequency, and diversity dimensions to obtain a composite signal tensor. A set of cascaded least squares estimators then separates the component signals by fitting a constrained tensor model of the composite signal to the composite signal tensor in an alternating least squares estimation process, alternating during any given iteration of the process between fitting different unfolded representations of the constrained tensor model to corresponding unfolded representations of the composite signal tensor.
    Type: Application
    Filed: November 1, 2010
    Publication date: June 2, 2011
    Inventors: Icaro L. J. da Silva, Robert Baldemair, Fco. Rodrigo P. Cavalcanti, André L. F. de Almeida, Sorour Falahati