Patents by Inventor Klas F. J. Jansson

Klas F. J. Jansson 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).

  • Discriminating between stationary and non-stationary signals
    Patent number: 5579435
    Abstract: Signal frames containing background sounds in a mobile radio communication system are tested for stationarity. Consecutive measures .DELTA.E.sub.n representing spectral changes in said signals from frame to frame are formed. From these measures a second measure of the rate of spectral change are formed. Finally, it is determined whether this second measure exceeds a predetermined stationarity limit .gamma.. If this is the case the signals are considered stationary.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: November 26, 1996
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Klas F. J. Jansson