Patents by Inventor Hans Strifors

Hans Strifors 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).

  • Patent number: 6222481
    Abstract: The present invention relates to a method of detecting and classifying objects using radar. The method means that a broadband radar signal comprising wavelengths that coincide with characteristic lengths of targets to be detected and classified is transmitted. Further, a returned echo signal is received and analysed, at which a signal analysis in a combined time-frequency domain is used, which comprises determining characteristic frequencies in the signal return and their mutual time relations. Finally, a comparison with the corresponding stored values of an analysis of possible targets is performed.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: April 24, 2001
    Assignee: Forsvarets Forskningsanstalt
    Inventors: Staffan Abrahamson, Dan Axelsson, Bertil Brusmark, Anders Gustafsson, Hans Strifors