Patents by Inventor Christian Chavey

Christian Chavey 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 for establishing DAMA radiotelephone conversations by single-span satellite transmission
    Patent number: 4424417
    Abstract: In a radiotelephone system comprising a ground central station and a plurality of peripheral stations having access to a geostationary satellite, demand-assignment multiple-access (DAMA) conversations are established by single-span transmission between subscribers of the peripheral stations. In order to prevent conflicts arising from two simultaneous call demands, a rectangular-wave synchronization signal is transmitted by the central station to the peripheral stations in a specialized channel and the demands are caused to coincide with the active wavefronts of the synchronization signal.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: January 3, 1984
    Assignee: LMT Radio Professionnelle
    Inventors: Christian Chavey, Pierre Lagoutte