Patents by Inventor Ethem M. Sozer

Ethem M. Sozer 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).

  • Iterative joint minimum mean square error decision feedback equalizer and turbo decoder
    Patent number: 8542724
    Abstract: An iterative joint Minimum Mean Square Error (MMSE) decision feedback equalizer and turbo decoder includes a turbo decoder portion and a decision feedback equalizer (DFE) portion. The DFE receives input signals and processes these input signals to generate an estimated symbol sequence that is communicated to the turbo decoder portion. The estimated symbol sequence is also communicated to the feedback portion of the DFE. The feedback portion of the DFE includes a symbol-by-symbol detector and a feedback filter. The soft decoder output values generated by the turbo decoder portion are communicated to the feedback portion of the DFE and are combined with the coded output as log likelihood ratio values in a multipass, iterative fashion whereby the equalizer and decoder are linked via iterative feedback to provide communication performance enhancement.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: September 24, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Fletcher A. Blackmon, Ethem M. Sozer, John G. Proakis