Patents by Inventor Jean-Francois Helm, deceased

Jean-Francois Helm, deceased 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).

  • Digital circuit for the extraction of the phase and envelope signals of a single sideband signal
    Patent number: 5394118
    Abstract: A digital circuit having a first section for converting a low-frequency signal into a sampled single sideband signal, coupled to a second section for separating the sampled SSB signal into its two components, the phase and envelope components.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: February 28, 1995
    Assignee: Thomson-CSF
    Inventors: Bernard Darges, Jean-Francois Helm, deceased, by Veronique Helm wife Gauthier, legal representative