Patents by Inventor Cornelia Roessing

Cornelia Roessing 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: 20100199142
    Abstract: There is disclosed a method of creating an LDPC code that is defined by a parity-check matrix H. The parity-check matrix H is derived from a (0,1)-geometry which is induced by a finite inversive space. This inversive space has an order q where every circle in the inversive space contains exactly q+1 points, q is preferably even, and most preferably equal to 2. Where the inversive space has a dimension n. Where the (0,1)-geometry is formed as a derived geometric structure based on pencils of degree m?n in the inversive space. The method includes construction of a binary K by N matrix H labelled by K circles and N pencils of the inversive space, wherein the (i, j)-entry of the matrix is 1 if circle i belongs to pencil j, and 0 otherwise. If the degree of the pencil is given by 2 then the parity-check matrix H needs to be transposed, i.e. HT is used instead of H. A method of transmitting a message, a coder, a decoder and a data transmission system using such codes are also disclosed.
    Type: Application
    Filed: April 11, 2008
    Publication date: August 5, 2010
    Applicant: University College Dublin, National University of Ireland
    Inventors: Marcus Greferath, Cornelia Roessing, Mark Flanagan