Patents by Inventor Petr Trifonov

Petr Trifonov 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 for encoding data message K' for transmission from sending station to receiving station as well as method for decoding, sending station, receiving station and software
    Patent number: 8112695
    Abstract: Irregular LDPC codes have a construction which allows one to obtain a number of codes with different length from a single prototype code with a parity check matrix given by H=[Hz Hi], where Hz specifies the well-known zigzag pattern in the corresponding Tanner graph. The parity check matrices for longer codes are obtained as [Hz??diag(Hi, . . . , Hi)], where Hz? specifies a longer zigzag pattern depending on the number of matrices Hi used, and ? represents some permutation. This allows one to construct the decoder for a longer code by reusing hardware components developed for decoding the prototype code.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: February 7, 2012
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventors: Elena Costa, Egon Schulz, Petr Trifonov
  • Method for encoding data blocks
    Patent number: 8054740
    Abstract: Prior to transferring to a radio communication system, at least one data block is encoded according to predetermined quality-of-service requirements with the aid of a first code. Subsequently, the data block, encoded by the first code, is further encoded according to the radio transmission properties of a usable radio transmission source with the aid of a second code.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: November 8, 2011
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventors: Elena Costa, Egon Schulz, Petr Trifonov
  • Method for Encoding a Data Message K' for Transmission from Sending Station to Receiving Station as Well as Method for Decoding, Sending Station, Receiving Station and Software
    Publication number: 20090204876
    Abstract: Irregular LDPC codes have a construction which allows one to obtain a number of codes with different length from a single prototype code with a parity check matrix given by H=[Hz Hi], where Hz specifies the well-known zigzag pattern in the corresponding Tanner graph. The parity check matrices for longer codes are obtained as [Hz? ? diag(Hi, . . . , Hi)], where Hz? specifies a longer zigzag pattern depending on the number of matrices Hi used, and ? represents some permutation. This allows one to construct the decoder for a longer code by reusing hardware components developed for decoding the prototype code.
    Type: Application
    Filed: April 26, 2007
    Publication date: August 13, 2009
    Inventors: Elena Costa, Egon Schulz, Petr Trifonov
  • Method for encoding data blocks
    Publication number: 20090147764
    Abstract: Prior to transferring to a radio communication system, at least one data block is encoded according to predetermined quality-of-service requirements with the aid of a first code. Subsequently, the data block, encoded by the first code, is further encoded according to the radio transmission properties of a usable radio transmission source with the aid of a second code.
    Type: Application
    Filed: April 25, 2006
    Publication date: June 11, 2009
    Inventors: Elena Costa, Egon Schulz, Petr Trifonov