Patents Examined by Susa McFadden
  • Complex signal activity detection for improved speech/noise classification of an audio signal
    Patent number: 6424938
    Abstract: Perceptually relevant non-speech information can be preserved during encoding of an audio signal by determining whether the audio signal includes such information. If so, a speech/noise classification of the audio signal is overriden to prevent misclassification of the audio signal as noise.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: July 23, 2002
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Ingemar Johansson, Erik Ekudden, Jonas Svedberg, Anders Uvliden