Patents by Inventor Gerd Kreiselmaier

Gerd Kreiselmaier 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).

  • Combined turbo-code/convolutional code decoder, in particular for mobile radio systems
    Patent number: 7191377
    Abstract: A combined decoder reuses input/output RAM of a turbo-code decoding circuit as alpha-RAM or beta-RAM for a convolutional code decoding circuit. Additional operational units are used for both turbo-coding and convolutional coding. An effective harware folding scheme permits calculation of 256 states serially on 8 ACS units.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: March 13, 2007
    Assignees: STMicroelectronics N.V., STMicroelectronics S.r.l.
    Inventors: Friedbert Berens, Gerd Kreiselmaier
  • Combined turbo-code/convolutional code decoder, in particular for mobile radio systems
    Publication number: 20050278603
    Abstract: A combined decoder reuses input/output RAM of a turbo-code decoding circuit as alpha-RAM or beta-RAM for a convolutional code decoding circuit. Additional operational units are used for both turbo-coding and convolutional coding. An effective harware folding scheme permits calculation of 256 states serially on 8 ACS units.
    Type: Application
    Filed: September 2, 2003
    Publication date: December 15, 2005
    Applicants: STMicroelectronics N.V., STMicroelectronics S.r.l.
    Inventors: Friedbert Berens, Gerd Kreiselmaier
  • Method of blindly detecting a transport format of an incident convolutional encoded signal, and corresponding convolutional code decoder
    Publication number: 20050091566
    Abstract: A method for blindly detecting a transport format of a convolutional encoded signal is provided. The transport format is unknown and belongs to a set of MF predetermined reference transport formats. The method includes decoding the convolutional encoded signal using a Maximum-a-Posteriori algorithm. The decoding includes considering the MF possible reference transport formats and delivering MF corresponding groups of soft output information, calculating from each group of soft output information a calculated cyclic redundancy check (CRC) word, and comparing the calculated CRC word with the transmitted CRC word. Groups are selected which the calculated CRC word is equal to the transmitted CRC word, and an actual transport format of the convolutional encoded signal is selected from at least one soft output information among last ones of each selected group.
    Type: Application
    Filed: April 22, 2004
    Publication date: April 28, 2005
    Applicants: STMicroelectronics N.V., STMicroelectronics SA
    Inventors: Friedbert Berens, Gerd Kreiselmaier