Patents by Inventor Mohamed O. Damen

Mohamed O. Damen 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 of systematic construction of space-time constellations, system and method of transmitting space-time constellations
    Patent number: 7970048
    Abstract: Space-time code, and methods for constructing space-time codes are provided. The space-time coder performs a respective linear transformation on each of P sets of K modulated symbols of a modulated symbol stream to produce P sets of T linearly transformed symbols, applies a respective phase rotation to each set of T linearly transformed symbols to produce a respective set of T phase rotated symbols, and performs a threading operation on the sets of T phase rotated symbols to produce P threaded sequences that define M output sequences. During each of T symbol periods, a respective one of the P threaded sequences includes a symbol from one of the P sets of phase rotated symbols. At least one symbol from each set of phase rotated symbols appears in each output sequence, where M>=2, 2<=P<=M, and T>=M and M>=K.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: June 28, 2011
    Assignees: University of Alberta, The Ohio State University
    Inventors: Mohamed O. Damen, Norman C. Beaulieu, Hesham El Gamal
  • Method of Systematic Construction of Space-Time Constellations, System and Method of Transmitting Space-Time Constellations
    Publication number: 20090285332
    Abstract: Space-time code, and methods for constructing space-time codes are provided.
    Type: Application
    Filed: July 2, 2009
    Publication date: November 19, 2009
    Inventors: Mohamed O. Damen, Norman C. Beaulieu, Hesham El Gamal
  • Method of systematic construction of space-time constellations, system and method of transmitting space-time constellations
    Patent number: 7583747
    Abstract: Space-time code, and methods for constructing space-time codes are provided.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: September 1, 2009
    Assignees: University of Alberta, The Ohio State University
    Inventors: Mohamed O. Damen, Norman C. Beaulieu, Hesham El Gamal