Patents by Inventor Pierre Bernadac

Pierre Bernadac 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 and apparatus for preventing a false pass of a cyclic redundancy check at a receiver during weak receiving conditions in a wireless communications system
    Patent number: 7392459
    Abstract: At the receiver in a wireless communications system, the likelihood of a false CRC pass that can occur when a weak received signal produces an all ZERO output from a convolutional or a turbo decoder is minimized. To prevent an all ZERO output, a convolutional decoder selects from among those determined equally most likely transmitted sequences of bits in a data block one that has a weight greater than the one having the minimum weight. A turbo decoder selects a ONE rather than a ZERO as the value of a transmitted bit in a data block when for that bit a bit value of a ZERO and a ONE are determined to be equally likely.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: June 24, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Pierre Bernadac, Peter Christian Gunreben, Hongwei Kong, Jean Paul Moreau
  • Method and apparatus for preventing a false pass of a cyclic redundancy check at a receiver during weak receiving conditions in a wireless communications system
    Publication number: 20050235192
    Abstract: At the receiver in a wireless communications system, the likelihood of a false CRC pass that can occur when a weak received signal produces an all ZERO output from a convolutional or a turbo decoder is minimized. To prevent an all ZERO output, a convolutional decoder selects from among those determined equally most likely transmitted sequences of bits in a data block one that has a weight greater than the one having the minimum weight. A turbo decoder selects a ONE rather than a ZERO as the value of a transmitted bit in a data block when for that bit a bit value of a ZERO and a ONE are determined to be equally likely.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 20, 2005
    Inventors: Pierre Bernadac, Peter Gunreben, Hongwei Kong, Jean Moreau